| 86df062791d50b35ae274bbeb8fe2f37944e284a |
|
17-Apr-2012 |
Benjamin Kramer <benny.kra@googlemail.com> |
Revert "SCEV: When expanding a GEP the final addition to the base pointer has NUW but not NSW."
This isn't right either, reverting for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154910 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c77764591b06655bca4313ccfb5b1b773849387e |
|
07-Apr-2012 |
Benjamin Kramer <benny.kra@googlemail.com> |
SCEV: When expanding a GEP the final addition to the base pointer has NUW but not NSW.
Found by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154262 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 26c8dcc692fb2addd475446cfff24d6a4e958bca |
|
04-Apr-2012 |
Rafael Espindola <rafael.espindola@gmail.com> |
Always compute all the bits in ComputeMaskedBits.
This allows us to keep passing reduced masks to SimplifyDemandedBits, but
know about all the bits if SimplifyDemandedBits fails. This allows instcombine
to simplify cases like the one in the included testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154011 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eb6dd23c95c1df08a4a924e2125158c5203b0991 |
|
27-Mar-2012 |
Andrew Trick <atrick@apple.com> |
SCEV fix: Handle loop invariant loads.
Fixes PR11882: NULL dereference in ComputeLoadConstantCompareExitLimit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153480 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dada586f1677bbc58e07cd186a8b7f8c67ea3025 |
|
24-Jan-2012 |
Chris Lattner <sabre@nondot.org> |
switch SCEV to use the new ConstantFoldLoadThroughGEPIndices function
instead of its own hard coded thing, allowing it to handle
ConstantDataSequential and fixing some obscure bugs (e.g. it would
previously crash on a CAZ of vector type).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148788 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4d6ccb5f68cd7c6418a209f1fa4dbade569e4493 |
|
20-Jan-2012 |
David Blaikie <dblaikie@gmail.com> |
More dead code removal (using -Wunreachable-code)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 07df1b4d1a299d18159aa9396bb02892fed773ac |
|
20-Jan-2012 |
Benjamin Kramer <benny.kra@googlemail.com> |
Remove obviously invalid early exit that prevented analyzing ConstantAggregateZeros.
Found by the clang static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148540 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3eada319fc21bca31a2bc7819e4c05f46e6f82e1 |
|
11-Jan-2012 |
Andrew Trick <atrick@apple.com> |
Clarified the SCEV getSmallConstantTripCount interface with in-your-face comments.
This interface is misleading and dangerous, but it is actually what we need for unrolling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147926 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f8fd841a4bb7a59f81cf4642169e8251e039acfe |
|
07-Jan-2012 |
Andrew Trick <atrick@apple.com> |
Expose isNonConstantNegative to users of ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147700 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| aab8e28d5e470711d80276bbf717408c3ab966fd |
|
02-Dec-2011 |
Chad Rosier <mcrosier@apple.com> |
Fix a few more places where TargetData/TargetLibraryInfo is not being passed.
Add FIXMEs to places that are non-trivial to fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145661 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 00737bdb488cc7157ca5f7a40d6cd8467ad09a79 |
|
01-Dec-2011 |
Chad Rosier <mcrosier@apple.com> |
Last bit of TargetLibraryInfo propagation. Also fixed a case for TargetData
where it appeared beneficial to pass.
More of rdar://10500969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145630 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 618c1dbd293d15ee19f61b1156ab8086ad28311a |
|
01-Dec-2011 |
Chad Rosier <mcrosier@apple.com> |
Propagate TargetLibraryInfo throughout ConstantFolding.cpp and
InstructionSimplify.cpp. Other fixups as needed.
Part of rdar://10500969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145559 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ecb35ece5c42d89057da3c2c7bc2e95f08b1dbef |
|
29-Nov-2011 |
Andrew Trick <atrick@apple.com> |
SCEV fix. In general, Add/Mul expressions should not inherit NSW/NUW.
This reverts r139450, fixes r139453, and adds much needed comments and a
unit test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145367 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 121d78f7e7d71dc56699f249f5103562d9ce179e |
|
29-Nov-2011 |
Andrew Trick <atrick@apple.com> |
Make SCEV print <nsw><nuw> for Add/MulExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145364 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 13c3c7517620a6fbff2c355b582755b73f41b87e |
|
20-Nov-2011 |
Benjamin Kramer <benny.kra@googlemail.com> |
SCEV: Actually set overflow flags on add expressions.
setFlags doesn't modify its arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145007 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 79f0bfcc20135844d260a20c359222cd90481f78 |
|
16-Nov-2011 |
Andrew Trick <atrick@apple.com> |
Fix SCEV overly optimistic back edge taken count for multi-exit loops.
Fixes PR11375: Different results for 'clang++ huh.cpp'...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144746 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d7ecff49d9190262da48a9f5815c01138fd54ebc |
|
12-Nov-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Don't try to loop on iterators that are potentially invalidated inside the loop. Fixes PR11361!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144454 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 89d093d5b69d21b5a4f81b969597bd76b6327cb5 |
|
09-Nov-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Don't forget to check FlagNW when determining whether an AddRecExpr will wrap
or not. Patch by Brendon Cahoon!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144173 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f8a9eb1fa6b676468d0231d1a0ee5247b664dabb |
|
25-Oct-2011 |
Duncan Sands <baldrick@free.fr> |
Restore commits 142790 and 142843 - they weren't breaking the build
bots. Original commit messages:
- Reapply r142781 with fix. Original message:
Enhance SCEV's brute force loop analysis to handle multiple PHI nodes in the
loop header when computing the trip count.
With this, we now constant evaluate:
struct ListNode { const struct ListNode *next; int i; };
static const struct ListNode node1 = {0, 1};
static const struct ListNode node2 = {&node1, 2};
static const struct ListNode node3 = {&node2, 3};
int test() {
int sum = 0;
for (const struct ListNode *n = &node3; n != 0; n = n->next)
sum += n->i;
return sum;
}
- Now that we look at all the header PHIs, we need to consider all the header PHIs
when deciding that the loop has stopped evolving. Fixes miscompile in the gcc
torture testsuite!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142919 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 526c80bae4d9902fea9efd787c2f212bf111e85e |
|
25-Oct-2011 |
Duncan Sands <baldrick@free.fr> |
Speculatively revert commits 142790 and 142843 to see if it fixes
the dragonegg and llvm-gcc self-host buildbots. Original commit
messages:
- Reapply r142781 with fix. Original message:
Enhance SCEV's brute force loop analysis to handle multiple PHI nodes in the
loop header when computing the trip count.
With this, we now constant evaluate:
struct ListNode { const struct ListNode *next; int i; };
static const struct ListNode node1 = {0, 1};
static const struct ListNode node2 = {&node1, 2};
static const struct ListNode node3 = {&node2, 3};
int test() {
int sum = 0;
for (const struct ListNode *n = &node3; n != 0; n = n->next)
sum += n->i;
return sum;
}
- Now that we look at all the header PHIs, we need to consider all the header PHIs
when deciding that the loop has stopped evolving. Fixes miscompile in the gcc
torture testsuite!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142916 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3846163aee1b14545057c8664f80a18c55309462 |
|
24-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Now that we look at all the header PHIs, we need to consider all the header PHIs
when deciding that the loop has stopped evolving. Fixes miscompile in the gcc
torture testsuite!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142843 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7c3fc5747284a0c6ca4e370f964082c69b42b8dd |
|
24-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Reapply r142781 with fix. Original message:
Enhance SCEV's brute force loop analysis to handle multiple PHI nodes in the
loop header when computing the trip count.
With this, we now constant evaluate:
struct ListNode { const struct ListNode *next; int i; };
static const struct ListNode node1 = {0, 1};
static const struct ListNode node2 = {&node1, 2};
static const struct ListNode node3 = {&node2, 3};
int test() {
int sum = 0;
for (const struct ListNode *n = &node3; n != 0; n = n->next)
sum += n->i;
return sum;
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142790 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5bef0eb1de5f52662de7b4808bee5e9d643b04db |
|
24-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
PHI nodes not in the loop header aren't part of the loop iteration initial
state. Furthermore, they might not have two operands. This fixes the underlying
issue behind the crashes introduced in r142781.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142788 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 38af3d5a8dbcada6f264d3a268f525a827adaca2 |
|
24-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Speculatively revert r142781. Bots are showing
Assertion `i_nocapture < OperandTraits<PHINode>::operands(this) && "getOperand() out of range!"' failed.
coming out of indvars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142786 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 795cb48f1a1f01ce55b32d3d3caca728a4122d7d |
|
24-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Enhance SCEV's brute force loop analysis to handle multiple PHI nodes in the
loop header when computing the trip count.
With this, we now constant evaluate:
struct ListNode { const struct ListNode *next; int i; };
static const struct ListNode node1 = {0, 1};
static const struct ListNode node2 = {&node1, 2};
static const struct ListNode node3 = {&node2, 3};
int test() {
int sum = 0;
for (const struct ListNode *n = &node3; n != 0; n = n->next)
sum += n->i;
return sum;
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142781 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 614fef6d5a1e24d01ffe7247b1841fd7e08e1e85 |
|
22-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Make SCEV's brute force analysis stronger in two ways. Firstly, we should be
able to constant fold load instructions where the argument is a constant.
Second, we should be able to watch multiple PHI nodes through the loop; this
patch only supports PHIs in loop headers, more can be done here.
With this patch, we now constant evaluate:
static const int arr[] = {1, 2, 3, 4, 5};
int test() {
int sum = 0;
for (int i = 0; i < 5; ++i) sum += arr[i];
return sum;
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142731 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4c7f1caadc6fdad54dd9f502224236f7e73cc6a8 |
|
14-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
An instruction's operands aren't necessarily instructions or constants. They
could be arguments, for example.
No testcase because this is a bug-fix broken out of a larger optimization patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141951 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ef8a4c2a65fe28e8a798a0631e34356271e5f55f |
|
06-Oct-2011 |
Andrew Trick <atrick@apple.com> |
Fixes PR11070 - assert in SCEV getConstantEvolvingPHIOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141219 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b73a8414a7f7d4f5131338b7bc3a81fe34298e4a |
|
05-Oct-2011 |
Andrew Trick <atrick@apple.com> |
Typo. Thanks Bob.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141188 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f3baa581e82b099d6cda24b8dfaf9e91faa28f2b |
|
05-Oct-2011 |
Chandler Carruth <chandlerc@gmail.com> |
Fix a broken assert found by -Wparentheses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141168 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 28ab7db2c3d71bbd1d55bccef6efac338dc9297c |
|
05-Oct-2011 |
Andrew Trick <atrick@apple.com> |
Fix disabled SCEV analysis caused r141161 and add unit test.
I noticed during self-review that my previous checkin disabled some
analysis. Even with the reenabled analysis the test case runs in about
5ms. Without the fix, it will take several minutes at least.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141164 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 13d31e0368c84bc0acc9e8ac88333685cc393edb |
|
05-Oct-2011 |
Andrew Trick <atrick@apple.com> |
Avoid exponential recursion in SCEV getConstantEvolvingPHI and EvaluateExpression.
Note to compiler writers: never recurse on multiple instruction
operands without memoization.
Fixes rdar://10187945. Was taking 45s, now taking 5ms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141161 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e97728ecf8a0ee69562cc0e7880cfaa65200c624 |
|
04-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
The product of two chrec's can always be represented as a chrec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141066 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1cbae18cf60c023840aab605958eea635c837f16 |
|
03-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Reapply r140979 with fix! We never did get a testcase, but careful review of the
logic by David Meyer revealed this bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140992 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4fcc80a486300021d320aec8cd125022ef701e5b |
|
03-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Revert r140979 due to reports of bootstrap failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140980 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8fde4f5842b454819bc9dc4d74d4a1bfd990dc62 |
|
03-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Add one more case we compute a max trip count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140979 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f63ae2159d2c20ea239e4c6d4e74bd2f14ebd408 |
|
28-Sep-2011 |
Andrew Trick <atrick@apple.com> |
indvars: generalize SCEV getPreStartForSignExtend.
Handle general Add expressions to avoid leaving around redundant
32-bit IVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140701 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 543376743c900806109c75d4fd12c4ba01020cfe |
|
10-Sep-2011 |
Andrew Trick <atrick@apple.com> |
Set NSW/NUW flags on SCEVAddExpr when the operation is flagged as
such.
I'm doing this now for completeness because I can't think of/remember
any reason that it was left out. I'm not sure it will help anything,
but if we don't do it we need to explain why in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139450 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c103a08a1115249548d6bb57a74a16de4f0864e3 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
This transform only handles two-operand AddRec's. Prevent it from trying to
handle anything more complex. Fixes PR10383 again!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139186 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ecd37bcd5ce27cacfa11c4731c46d9869278745e |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Fix typo in comment again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139139 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9115fba853ec3f89bf335b22ae51fbf18439e171 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Apparently we compile the code, not the comments. Thanks Eli!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139138 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e6180992eb4730563a06c85545ca9cfbc033b7c9 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139137 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8cfb2f8bcec2af1c3228fb4e372d4dfb0010c37d |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Nope! I had it right the first time. Revert the operative part of r139135 and
add more showing of my work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139136 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 28682ae00f6d6f71c325de2b1d80c0b7a8df0716 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Fix flipped sign. While there, show my math.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139135 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 980e9f399de8428550faa66835a789ba22e037de |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
No no no, fix typo properly!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139134 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fa151a79ed2d0efc8fe1d7378be264b301d8caf1 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
The logic inside getMulExpr to simplify {a,+,b}*{c,+,d} was wrong, which was
visible given a=b=c=d=1, on iteration #1 (the second iteration). Replace it with
correct math. Fixes PR10383!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139133 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b2840fdcd8a98de32e86e70a267b54cf0af35140 |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Revert r139126 due to selfhost failures reported by buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139130 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 77b7352db027cb486d25a92c2756c379a3073d7f |
|
06-Sep-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Teach SCEV to report a max backedge count in one interesting case in
HowFarToZero; the case for a canonical loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139126 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 252ef7a61a9455c1e5d7b8a5a5f7ec8b3a75e200 |
|
02-Sep-2011 |
Andrew Trick <atrick@apple.com> |
Comment and clarifying assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139036 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b1831c66403315a1d84593b7c198ddbd43a574cf |
|
12-Aug-2011 |
Andrew Trick <atrick@apple.com> |
Allow loop unrolling to get known trip counts from ScalarEvolution.
SCEV unrolling can unroll loops with arbitrary induction variables. It
is a prerequisite for -disable-iv-rewrite performance. It is also
easily handles loops of arbitrary structure including multiple exits
and is generally more robust.
This is under a temporary option to avoid affecting default
behavior for the next couple of weeks. It is needed so that I can
checkin unit tests for updateUnloop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137384 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 06988bcf6a5c74e81cf7e76f06a686aa822ec00a |
|
06-Aug-2011 |
Andrew Trick <atrick@apple.com> |
Made SCEV's UDiv expressions more canonical. When dividing a
recurrence, the initial values low bits can sometimes be ignored.
To take advantage of this, added FoldIVUser to IndVarSimplify to fold
an IV operand into a udiv/lshr if the operator doesn't affect the
result.
-indvars -disable-iv-rewrite now transforms
i = phi i4
i1 = i0 + 1
idx = i1 >> (2 or more)
i4 = i + 4
into
i = phi i4
idx = i0 >> ...
i4 = i + 4
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137013 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fcb4356dee96563def584fe38eeafb3eb63c5cd8 |
|
02-Aug-2011 |
Andrew Trick <atrick@apple.com> |
Use consistent terminology for loop exit/exiting blocks. Name change only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136677 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5116ff671f45d48594d11360e22991a7edb13862 |
|
26-Jul-2011 |
Andrew Trick <atrick@apple.com> |
SCEV: Added a data structure for storing not-taken info per loop
exit. Added an interfaces for querying either the loop's exact/max
backedge taken count or a specific loop exit's not-taken count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136100 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1d2f569c3428d70d0cf690c9adb459ad4a3ecff2 |
|
19-Jul-2011 |
Jay Foad <jay.foad@gmail.com> |
Use ArrayRef in ConstantFoldInstOperands and ConstantFoldCall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135477 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| db125cfaf57cc83e7dd7453de2d509bc8efd0e5e |
|
18-Jul-2011 |
Chris Lattner <sabre@nondot.org> |
land David Blaikie's patch to de-constify Type, with a few tweaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cf31f91931b257462a5a0059389977f6adea8dae |
|
01-Jun-2011 |
Andrew Trick <atrick@apple.com> |
SCEV: missing null check fix for r132360, dragonegg crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132416 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b1ce4c09ddc321e0e16a42a686eb6b40251df321 |
|
31-May-2011 |
Andrew Trick <atrick@apple.com> |
scev: Better sign-extend removal. Normalize postincrement recurrences
so that their sign extended forms are congruent when no overflow occurs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132360 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 77a2c4c1e54b7e3c4815b276eb6a2d99a7621460 |
|
09-May-2011 |
Dan Gohman <gohman@apple.com> |
Change a few std::maps to DenseMaps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131088 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a2a162077c80ebacc7c1b0bd92892ae207f1231f |
|
27-Apr-2011 |
Andrew Trick <atrick@apple.com> |
Corrects an old, old typo in a case that doesn't seem to be reached in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130316 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 104f4adeac9f555530ad24be609dae9d09baea18 |
|
27-Apr-2011 |
Andrew Trick <atrick@apple.com> |
Test case and comment for PR9633.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130294 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3f95c88162cf319bce463d0e5e2d99a96c24dff6 |
|
27-Apr-2011 |
Andrew Trick <atrick@apple.com> |
Fix for PR9633 [indvars] Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.
Added a type check in ScalarEvolution::computeSCEVAtScope to handle the case in which operands of an
AddRecExpr in the current scope are folded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130271 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 308bec390f4e6cba04ae06e2ca1a274c91a14f41 |
|
26-Apr-2011 |
Dan Gohman <gohman@apple.com> |
Fix an iterator invalidation bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130166 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7a2bdde0a0eebcd2125055e0eacaca040f0b766c |
|
15-Apr-2011 |
Chris Lattner <sabre@nondot.org> |
Fix a ton of comment typos found by codespell. Patch by
Luis Felipe Strano Moraes!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129558 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b12a754cce0c1d5542af605203a47820edba454d |
|
18-Mar-2011 |
Andrew Trick <atrick@apple.com> |
Added isValidRewrite() to check the result of ScalarEvolutionExpander.
SCEV may generate expressions composed of multiple pointers, which can
lead to invalid GEP expansion. Until we can teach SCEV to follow strict
pointer rules, make sure no bad GEPs creep into IR.
Fixes rdar://problem/9038671.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127839 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4dbe200b2d3da0dfd1c788c9650b8b8075c241aa |
|
15-Mar-2011 |
Andrew Trick <atrick@apple.com> |
Remove getMinusSCEVForExitTest().
This function performed acrobatics to prove no-self-wrap, which we now
have for free.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127643 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c343c1e27eb1a8901aebbe732a2813150ff46a71 |
|
15-Mar-2011 |
Andrew Trick <atrick@apple.com> |
Propagate SCEV no-wrap flags whenever possible.
This needs review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127638 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a053b21177015726b4cd136c42bc36f2f74556be |
|
14-Mar-2011 |
Andrew Trick <atrick@apple.com> |
Negating a recurrence preserves no-self-wrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127593 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dcfd404e3ccc66844632aa601bf52522dae41512 |
|
14-Mar-2011 |
Andrew Trick <atrick@apple.com> |
HowFarToZero can compute a trip count as long as the recurrence has no-self-wrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127591 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3228cc259b5ca00e46af36da369a451f5736cbf4 |
|
14-Mar-2011 |
Andrew Trick <atrick@apple.com> |
Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap
properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127590 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e62289b98f591bca3fd9073213b00a757d4cf857 |
|
09-Mar-2011 |
Andrew Trick <atrick@apple.com> |
When SCEV can determine the loop test is X < X, set ExactBECount=0.
When ExactBECount is a constant, use it for MaxBECount.
When MaxBECount cannot be computed, replace it with ExactBECount.
Fixes PR9424.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127342 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 635f71880bf26c06cdf2c678b4804439a0503429 |
|
09-Mar-2011 |
Andrew Trick <atrick@apple.com> |
whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127340 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8ebaf909580ada88d9952327323ded1e328d0708 |
|
13-Feb-2011 |
Chris Lattner <sabre@nondot.org> |
teach SCEV that the scale and addition of an inbounds gep don't NSW.
This fixes a FIXME in scev-aa.ll (allowing a new no-alias result) and
generally makes things more precise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125449 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1021236c74dcc4beb294ebe675032ff578fae17f |
|
11-Feb-2011 |
Chris Lattner <sabre@nondot.org> |
Per discussion with Dan G, inbounds geps *certainly* can have
unsigned overflow (e.g. "gep P, -1"), and while they can have
signed wrap in theoretical situations, modelling an AddRec as
not having signed wrap is going enough for any case we can
think of today. In the future if this isn't enough, we can
revisit this. Modeling them as having NUW isn't causing any
known problems either FWIW.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125410 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e19b7b80bd1bf48f9a6f036cf1cbc5f65445090a |
|
26-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Fix memory corruption. If one of the SCEV creation functions calls another but
doesn't return immediately after then the insert position in UniqueSCEVs will
be out of date. No test because this is a memory corruption issue. Fixes PR9051!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124282 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a3bbf2411fa1e085fc371e2c9ef27970e2c89d3c |
|
24-Jan-2011 |
Dan Gohman <gohman@apple.com> |
Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124126 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 76167af9b1968b2824fcb76db0bc571f422035b4 |
|
23-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Simplify some code with no functionality change. Make the test a lot more
robust against smarter optimizations, using the power of FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124081 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 630d85a78cdebf14a6fc2a0750bf48738f26ef08 |
|
23-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Use value ranges to fold ext(trunc) in SCEV when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124062 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9b8d2c26bce15d47a54718a50b44dd0a65eb88f4 |
|
22-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Have SCEV turn sext(x) into zext(x) when x is s>= 0. This applies many times in
"make check" alone.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124046 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5c6fc1cab774244fba2746b84f2b86d71b897733 |
|
19-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Similarly, analyze truncate through multiply.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123842 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 30aa8b13c93211f68bb4efddd1e47817a1d107f1 |
|
19-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Add a missed SCEV fold that is required to continue analyzing the IR produced
by indvars through the scev expander.
trunc(add x, y) --> add(trunc x, y). Currently SCEV largely folds the other way
which is probably wrong, but preserved to minimize churn. Instcombine doesn't
do this fold either, demonstrating a missed optz'n opportunity on code doing
add+trunc+add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123838 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 73f565e7546f63900738cd31a2f956444e7bb544 |
|
19-Jan-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Add a missing SCEV simplification sext(zext x) --> zext x.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123832 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6038a6351e7a9601a1eb3ffe4623c424ae2c80a4 |
|
11-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
some comment improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123243 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 87376839a651ed1221dd46762701f13ad6ece0eb |
|
11-Jan-2011 |
Eric Christopher <echristo@apple.com> |
Temporarily revert 123133, it's causing some regressions and I'm trying
to get a testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123225 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 965187081538623b5ed76beafb6888c81dcc80f2 |
|
11-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
the GEP faq says that only inbounds geps are guaranteed to not overflow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123218 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bd9d53cc65e0e6e492f150e3a06d908fb6ccbc14 |
|
10-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
add a fixme: ir isn't expressive enough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123139 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 53e1d45adbe94304ce685600a99694240fc1185a |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
Step #4 in improving trip count analysis: HowFarToZero can analyze
NUW AddRec's much more aggressively. We now get a trip count
for @test2 in nsw.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123138 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7975e3ebbac67cc50d918843bf68373cf48daa2e |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
rearrange some code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123136 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ad19c8c63cae112a2677c2f5d65717aeba44f8cb |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
Step #3 to improving trip count analysis: If we fold
a + {b,+,stride} into {a+b,+,stride} (because a is LIV),
then the resultant AddRec is NUW/NSW if the client says it
is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123133 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 992efb03785f2a368fbb63b09373be1d6a96ce5a |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
Step #2 to improve trip count analysis for loops like this:
void f(int* begin, int* end) { std::fill(begin, end, 0); }
which turns into a != exit expression where one pointer is
strided and (thanks to step #1) known to not overflow, and
the other is loop invariant.
The observation here is that, though the IV is strided by
4 in this case, that the IV *has* to become equal to the
end value. It cannot "miss" the end value by stepping over
it, because if it did, the strided IV expression would
eventually wrap around.
Handle this by turning A != B into "A-B != 0" where the A-B
part is known to be NUW.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123131 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6d5a2411aad379141df29687b8cec0938ab7ae61 |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
teach SCEV analysis of PHI nodes that PHI recurences formed
with GEP instructions are always NUW, because PHIs cannot wrap
the end of the address space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123105 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f1859891b7bef1ac8d5cea100f152aeb5783c3b3 |
|
09-Jan-2011 |
Chris Lattner <sabre@nondot.org> |
reduce indentation. Print <nuw> and <nsw> when dumping SCEV AddRec's
that have the bit set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123104 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 40f8f6264d5af2c38e797e0dc59827cd231e8ff7 |
|
07-Dec-2010 |
Jay Foad <jay.foad@gmail.com> |
PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121120 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7a874ddda037349184fbeb22838cc11a1a9bb78f |
|
01-Dec-2010 |
Jay Foad <jay.foad@gmail.com> |
PR5207: Rename overloaded APInt methods set(), clear(), flip() to
setAllBits(), setBit(unsigned), etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120564 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f601d6df6f43bb833461cbcee475c36998e6c259 |
|
20-Nov-2010 |
Benjamin Kramer <benny.kra@googlemail.com> |
Simplify code. No change in functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119908 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b458b15510712a241b02639d14afd35b422a1cc0 |
|
19-Nov-2010 |
Benjamin Kramer <benny.kra@googlemail.com> |
Silence warning about an uninitialized variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119800 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d0c6f3dafd7c3e9137d4e6415014c94137fcd3fc |
|
18-Nov-2010 |
Duncan Sands <baldrick@free.fr> |
Factor code for testing whether replacing one value with another
preserves LCSSA form out of ScalarEvolution and into the LoopInfo
class. Use it to check that SimplifyInstruction simplifications
are not breaking LCSSA form. Fixes PR8622.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119727 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9c9fcfc719158a46cb2e41b66d7dc1a63cd48d74 |
|
18-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Introduce memoization for ScalarEvolution dominates and properlyDominates
queries, and SCEVExpander getRelevantLoop queries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119595 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 56a756821842678a96f2baa8c6a53bd28fc2b69e |
|
18-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Factor out the code for purging a SCEV from all the various memoization maps.
Some of these maps may merge in the future, but for now it's convenient to have
a utility function for them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119587 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 714b5290b04e08570dae4304c1c92d30c06d3c99 |
|
18-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Merge the implementations of isLoopInvariant and hasComputableLoopEvolution, and
memoize the results. This improves compile time in code which highly complex
expressions which get queried many times.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119584 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4ce32db913beb6ae27df2fa0a9db5d68fd4889d2 |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Make SCEV::getType() and SCEV::print non-virtual. Move SCEV::hasOperand
to ScalarEvolution. Delete SCEV::~SCEV. SCEV is no longer virtual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119578 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dc0e8fb9f9512622f55f73e1a434caa5c0915694 |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Move SCEV::dominates and properlyDominates to ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119570 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 17ead4ff4baceb2c5503f233d0288d363ae44165 |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Move SCEV::isLoopInvariant and hasComputableLoopEvolution to be member
functions of ScalarEvolution, in preparation for memoization and
other optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119562 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6f8a5ddcd8d7e5b041ff083009ae84de0e6e588b |
|
17-Nov-2010 |
Duncan Sands <baldrick@free.fr> |
Before replacing a phi node with a different value, it
needs to be checked that this won't break LCSSA form.
Change the existing checking method to a more direct one:
rather than seeing if all predecessors belong to the loop,
check that the replacing value is either not in any loop or
is in a loop that contains the phi node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119556 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 203a7239ae928568fe7a34c03ead4b1b3133870e |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Verify SCEVAddRecExpr's invariant in ScalarEvolution::getAddRecExpr
instead of in SCEVAddRecExpr's constructor, in preparation for an
upcoming change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119554 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7c0fd8eb724a7228a6cf7e3e5487614c25202a91 |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution's range memoization to avoid using a
default ctor with ConstantRange.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119550 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a0c5244e8575ae91af318af09353ff34ac6bca1e |
|
17-Nov-2010 |
Duncan Sands <baldrick@free.fr> |
Have ScalarEvolution use SimplifyInstruction rather than hasConstantValue.
While there, add a note about an inefficiency I noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119458 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6678e7b6eb534b43b92105076e6d0553e5cf7def |
|
17-Nov-2010 |
Dan Gohman <gohman@apple.com> |
Memoize results from ScalarEvolution's getUnsignedRange and getSignedRange.
This fixes some extreme compile times on unrolled sha512 code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119455 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e60dcb5e974989998f1d008ea2a1caee29665d58 |
|
29-Oct-2010 |
Dan Gohman <gohman@apple.com> |
Make ScalarEvolution::forgetLoop forget all contained loops too, because
they may have ValuesAtScopes map entries referencing their outer loops.
This fixes a user-after-free reported in PR8471.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117698 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 081c34b725980f995be9080eaec24cd3dfaaf065 |
|
19-Oct-2010 |
Owen Anderson <resistor@mac.com> |
Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which
must be called in the pass's constructor. This function uses static dependency declarations to recursively initialize
the pass's dependencies.
Clients that only create passes through the createFooPass() APIs will require no changes. Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.
I have tested this with all standard configurations of clang and llvm-gcc on Darwin. It is possible that there are problems
with the static dependencies that will only be visible with non-standard options. If you encounter any crash in pass
registration/creation, please send the testcase to me directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116820 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2ab36d350293c77fc8941ce1023e4899df7e3a82 |
|
12-Oct-2010 |
Owen Anderson <resistor@mac.com> |
Begin adding static dependence information to passes, which will allow us to
perform initialization without static constructors AND without explicit initialization
by the client. For the moment, passes are required to initialize both their
(potential) dependencies and any passes they preserve. I hope to be able to relax
the latter requirement in the future.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116334 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ce665bd2e2b581ab0858d1afe359192bac96b868 |
|
08-Oct-2010 |
Owen Anderson <resistor@mac.com> |
Now with fewer extraneous semicolons!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115996 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7a391832f46ca2947f6ee46f6fad53cf64197d28 |
|
04-Oct-2010 |
Dan Gohman <gohman@apple.com> |
Don't add the operand count to SCEV uniquing data; FoldingSetNodeID
already knows its own length, so this is redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115521 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3f19c091bf9cfe717e14b8a1967085ba84db3877 |
|
01-Sep-2010 |
Dan Gohman <gohman@apple.com> |
Reapply r112432, now that the real problem is addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112667 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6a0c125ed566d3d2fecd70b9dcac65ef10b7958a |
|
01-Sep-2010 |
Dan Gohman <gohman@apple.com> |
Reapply r112433, now that the real problem is addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112666 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 90b5f25e8d3db3a05a6cedfb70ad59e7db884f29 |
|
01-Sep-2010 |
Dan Gohman <gohman@apple.com> |
Revert r110916. This patch is buggy because the code inside the
inner loop doesn't update all the variables in the outer loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112665 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 26125c65b926fa02c9aa9f62ae462e533fd6d883 |
|
31-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Revert r112432. It appears to be exposing a problem in the emacs build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112638 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f3bba4c1aefb1d260793813e60d045d76e52b6d2 |
|
31-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Speculatively revert r112433.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112608 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d578a40853ab54f6172c2ca350626edacc45846c |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Restructure the {A,+,B}<L> * {C,+,D}<L> folding so that it folds
all applicable addrecs before recursing on getMulExpr, instead of
recursing on getMulExpr for each one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112433 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b8fc62bc58d945a4e820ee3676c17793e8770b3a |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Batch up subtracts along with adds, when analyzing long chains of
operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112432 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c6a8e99fb34f039d5e410409f21cc03802059e59 |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize GroupByComplexity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112431 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0f32ae3aa7e1020979e4537885f5a95bba073adc |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Hold AddRec->getLoop() in a variable, to make the Mul code more consistent
with the Add code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112430 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 30cbc860f889262f0be8d94936a79fb502ecb6b1 |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Rename a variable, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112429 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7e1fee7ece962e03471d0c7a253c3d23b3cf50ae |
|
29-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Use iterators instead of indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112428 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5bb307d5c8b58f5809482db25b344d9a6b2a5663 |
|
28-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Fix an index calculation thinko.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112337 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 68ff776661be00138a9a5c9cce731a137e1dd2bb |
|
27-Aug-2010 |
Dan Gohman <gohman@apple.com> |
When merging adjacent operands, scan ahead and merge all equal
adjacent operands at once, instead of just two at a time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112299 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 32527156b3f33466af15a43d3a1695fd9ee2d315 |
|
27-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Make the {A,+,B}<L> + {C,+,D}<L> --> Other + {A+C,+,B+D}<L>
transformation collect all the addrecs with the same loop
add combine them at once rather than starting everything over
at the first chance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112290 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e8ac3f3be4b4df619368bf46aa4ed91557b5f76e |
|
27-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Switch ScalarEvolution's main Value*->SCEV* map from std::map
to DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112281 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 67ef74e0e5863e32e4d581d5e197bf00cccddd01 |
|
27-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Optimize SCEVComplexityCompare. Use a 3-way return instead of a 2-way
return to avoid needing two calls to test for equivalence, and sort
addrecs by their degree before examining their operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112267 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1895991a084d5d45d091a24542ad111946738e70 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
To create a copy of a SmallVector with an element removed from the
middle, copy the elements in two groups, rather than copying all the
elements and then doing an erase on the middle of the result. These
are SmallVectors, so we shouldn't expect to hit dynamic allocation
in the common case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111151 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0c5e95df571d854bf350414b2ea1fe2b84727937 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Tidy whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111147 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 619d3324bd2f3bcfc6bb33d50dc16c211d0d6471 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111145 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8d9c7a67015d6e9413f96eca26633ad7ec74d013 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Use const_iterator in a few places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111144 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2d16fc5ff03ae1e6ac219efe1776366cf211689f |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Use iterators instead of indices in a few more places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111143 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e28d7922f7a3338b1d0dfec4158584d4dd6f4031 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize SCEVConstant comparison.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111142 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2f199f9952b9dd62b5a0d0f4350b8fa780ebb9cc |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Move SCEVNAryExpr's virtual member functions out of line, and convert
them to iterators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111140 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bb85409b510e18250c2345b57c050798a3b90213 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Use iterators instead of indices in simple cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111138 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c4f77983d82675cc45b5819d1b0693787e6baad7 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Avoid gratuitous inefficiency in ifndef NDEBUG code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111137 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d3f171d66fdcdca77d254084c718067fff887ee9 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Make one getAddExpr call when analyzing a+b+c+d+e+... instead of one
for each add instruction. Ditto for Mul.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111136 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 57560da3f5cb09cc50f1381c142f32000f484ad5 |
|
16-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Delete an unused function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111135 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0ad2c7ace8abe46a86724a0ad939515d23d5c402 |
|
13-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Various optimizations. Don't compare two loops' depths
when they are the same loop. Don't compare two instructions'
loop depths when they are in the same block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9cba97886c9b6088ac35ecc6c3122e2c7665d6da |
|
13-Aug-2010 |
Dan Gohman <gohman@apple.com> |
When testing whether one loop contains another, test this directly
rather than testing whether the loop contains the other's header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111039 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9f1fb42b7e6260bcc535cfd50df60b35e17672f8 |
|
13-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Add a const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111038 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 58a85b96b887f1abbdd3deec5c44844d24393077 |
|
13-Aug-2010 |
Dan Gohman <gohman@apple.com> |
When creating a symmetric SCEV with a constant operand, put
the constant operand on the left, as that's where ScalarEvolution
will end up canonicalizing to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111037 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 71c4144076d35bd45f8a5103357532f958de6757 |
|
13-Aug-2010 |
Dan Gohman <gohman@apple.com> |
An add recurrence is loop-invariant in any loop inside of its
associated loop. This avoids potentially expensive traversals
of the add recurrence's operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111034 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 727356fc7d6898f1628f2a64930fe46b3540050d |
|
12-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Optimize ScalarEvolution::getAddExpr's operand factoring code by
having it finish processing all of the muliply operands before
starting the whole getAddExpr process over again, instead of
immediately after the first simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110916 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 918e76b8b5e1766db25004bafb8148387b5709e1 |
|
12-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Hoist some loop-invariant code out of a hot loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110915 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dc7692b1ad3b2f7eaa7f21504826af7ce1e3b573 |
|
12-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Optimize ScalarEvolution::getAddExpr's duplicate operand detection
by having it finish processing the whole operand list before
starting the whole getAddExpr process over again, instead of
immediately after the first duplicate is found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110914 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4ee87398e808534577ed1be52f2b48a6130b2c0e |
|
11-Aug-2010 |
Dan Gohman <gohman@apple.com> |
When analyzing loop exit conditions combined with and and or, don't
make any assumptions about when the two conditions will agree on when
to permit the loop to exit. This fixes PR7845.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110758 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| af08a36bd6b9d32a5ea993849d43094fecbd5bed |
|
11-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Rename and reorder the arguments to isImpliedCond, for consistency and clarity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110750 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 90c579de5a383cee278acc3f7e7b9d0a656e6a35 |
|
06-Aug-2010 |
Owen Anderson <resistor@mac.com> |
Reapply r110396, with fixes to appease the Linux buildbot gods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110460 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1f74590e9d1b9cf0f1f81a156efea73f76546e05 |
|
06-Aug-2010 |
Owen Anderson <resistor@mac.com> |
Revert r110396 to fix buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9ccaf53ada99c63737547c0235baeb8454b04e80 |
|
06-Aug-2010 |
Owen Anderson <resistor@mac.com> |
Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static
ID member as the sole unique type identifier. Clean up APIs related to this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ddd3a8899a31f858097bc482082a74b3f684b426 |
|
04-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Fix a minor bug which resulted in intermediate calculations
using wider types than are necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110241 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ab37f50838350e1104579fbd1f7c8820473485a5 |
|
03-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Make SCEVUnknown a CallbackVH, so that it can be notified directly
of Value deletions and RAUWs, instead of relying on ScalarEvolution's
Scalars map being notified, as that's complicated at best, and
insufficient in general.
This means SCEVUnknown needs a non-trivial destructor, so introduce
a mechanism to allow ScalarEvolution to locate all the SCEVUnknowns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110086 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ee56c42168f6c4271593f6018c4409b6a5910302 |
|
02-Aug-2010 |
Oscar Fuentes <ofv@wanadoo.es> |
Prefix `next' iterator operation with `llvm::'.
Fixes potential ambiguity problems on VS 2010.
Patch by nobled!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110029 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e6cbfa6b09e3e9ddf18449d1b64793e24af27c6b |
|
29-Jul-2010 |
Eric Christopher <echristo@apple.com> |
Speculatively revert r109705 since it seems to be causing some build bot
angst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109718 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c6743207e20904008d2de016adfa6b0a9355c0e7 |
|
29-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Factor out some of the code for updating old SCEVUnknown values, and
extend it to handle the case where multiple RAUWs affect a single
SCEVUnknown.
Add a ScalarEvolution unittest to test for this situation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109705 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 81f9121cda099f75e50485e79e8fdb423ae82792 |
|
28-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Make SCEVCallbackVH::allUsesReplacedWith update the old SCEVUnknown
object, as it may still be referenced by SCEVs not cleaned up by the
use list traversal.
Also, in ScalarEvolution::forgetValue, only check for a SCEVUnknown
object for the original value, not for any value in the use list,
because other SCEVUnknown values aren't necessary obsolete at that
point.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109570 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 59846aced20b23882a97b92da5d653dc3f3e8526 |
|
28-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Make SCEVCallbackVH::allUsesReplacedWith unconditionally delete
the old value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109567 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 304a7a624255b2da91dd4b7da9a13b2658055b43 |
|
23-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize SCEVComplexityCompare.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109267 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e72079ac69e34bdf795a28be534147df7dccb9b1 |
|
23-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Add a const qualifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109266 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 96f1d8ebdd33b3f9bdb3b1163f36072c68599f42 |
|
22-Jul-2010 |
Gabor Greif <ggreif@gmail.com> |
mass elimination of reliance on automatic iterator dereferencing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109103 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d13db2c59cc94162d6cf0a04187d408bfef6d4a7 |
|
22-Jul-2010 |
Owen Anderson <resistor@mac.com> |
Fix batch of converting RegisterPass<> to INTIALIZE_PASS().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eb4152c192ad226a1dee825f1433277e1851edbc |
|
20-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Add a fast path for x - x.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108855 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f53462d2ea64f3ae78440b01b345298532acb9a5 |
|
15-Jul-2010 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to fold trunc(undef) and anyext(undef) to undef.
This helps LSR behave more consistently on bugpoint-reduced testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108451 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 06028bcce46555e84944b7f8b674c05f32b2f07b |
|
30-Jun-2010 |
Dan Gohman <gohman@apple.com> |
In ScalarEvolution::forgetValue, eliminate any SCEVUnknown
entries associated with the value being erased in the
folding set map. These entries used to be harmless, because
a SCEVUnknown doesn't store any information about its Value*,
so having a new Value allocated at the old Value's address
wasn't a problem. But now that ScalarEvolution is storing more
information about values, this is no longer safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107316 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 70eff630085cb1585858344324c78c7418524795 |
|
30-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Revert the part of r107257 which introduced new logic for using
nsw and nuw flags from IR Instructions. On further consideration,
this isn't valid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107298 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b9f965144573d361b4908920b1858bf52d772f35 |
|
30-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Improve ScalarEvolution's nsw and nuw preservation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107257 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8a18d6b48f9877dbb7fbb88cb294201b20b9fb05 |
|
30-Jun-2010 |
Dan Gohman <gohman@apple.com> |
When computing a new ConservativeResult, intersect it with
the old one instead of replacing it, to be more precise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107256 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1104645eefa134ff3dd2c911d2aaa0dffb38f59f |
|
30-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution's tripcount computation for chains of loops
where each loop's induction variable's start value is the exit
value of a preceding loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107224 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7a64257f94202b1416bbd4981ada9076af273ee3 |
|
29-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Just as its not safe to blindly transfer the nsw bit from an add
instruction to an add scev, it's not safe to blindly transfer the
inbounds flag from a gep instruction to an nsw on the scev for the
gep.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107117 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 420ab9102cc4493563f3a731ea39eec22ad4996c |
|
25-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Eliminate a redundant FoldingSet lookup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106872 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eaf6cf28dd312704718d53155333b4d6d7c16c7c |
|
24-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Don't try to preserve pointer types in SCEVConstants; the old code
was over-complicated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106760 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1faa88280edb3eec934dcbd4a033b2162e01274f |
|
24-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Make the trunc code consistent with the zext and sext code in its
handling of pointer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106757 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 605c14fb115e89a2bad97761ae57b55e8c28ffff |
|
23-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Replace ScalarEvolution's private copy of getLoopPredecessor
with LoopInfo's public copy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106603 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9d4588ffadfdf6c190758200b2ca69742f46d239 |
|
22-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Allow "exhaustive" trip count evaluation on phi nodes with all
constant operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106537 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 403a8cdda5e76ea689693de16474650b4b0df818 |
|
21-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Use A.append(...) instead of A.insert(A.end(), ...) when A is a
SmallVector, and other SmallVector simplifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106452 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b92654d9c9cc34c75463e40d822fea4ac53950b3 |
|
19-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution's "exhaustive" trip count evaluation code to avoid
assuming that loops are in canonical form, as ScalarEvolution doesn't
depend on LoopSimplify itself. Also, with indirectbr not all loops can
be simplified. This fixes PR7416.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106389 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3bf63768e574a2065de1aebba12f6c2e80f4fb16 |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Revert r106304 (105548 and friends), which are the SCEVComplexityCompare
optimizations. There is still some nondeterminism remaining.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106306 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 78db186d2dbaf4745f7e4beab4029db40856b54b |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Reapply 105540, 105542, and 105548, and revert r105732.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106304 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e0f0c7b024f4c884b0671cb4e137dffc92a53b5e |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Reapply 105546.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106302 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c72f0c8c57a79fe9d32d9147ec3b8717ade6faa1 |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Reapply 105544.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106301 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 07587a450044e32b791baa012032f1cb11bfed88 |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Remove getIntegerSCEV; it's redundant with getConstant, and getConstant
is more consistent with the ConstantInt API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106281 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 27ed6a41ce4be84dfc812cb88e7bc56c39c15f4d |
|
18-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Simplify this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106254 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1d451dff63e9c4241794a3645dfe4ee67efe5b22 |
|
09-Jun-2010 |
Evan Cheng <evan.cheng@apple.com> |
Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105740 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fd447eff22637c3d47ce709468ab50b6243d0e4c |
|
07-Jun-2010 |
Dan Gohman <gohman@apple.com> |
The FoldingSet hash data includes pointer values, so it isn't
determinstic. Instead, give SCEV objects an arbitrary sequence
number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105548 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5e5dd68c7f5115c245745c496ab3e4cd338a181c |
|
07-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Optimize this code somewhat by taking advantage of the fact
that the operands are sorted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105546 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1f23d63ddf6d931f687a37ddadb76c2f37ffbef6 |
|
07-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize this, to speed up this hotspot in debug builds a little.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105544 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ef07158c11b6083578e6d533a1a69afe2e186903 |
|
07-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105542 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4d52c6d622811d00d40b914a4ebd1996b1eed95d |
|
07-Jun-2010 |
Dan Gohman <gohman@apple.com> |
Optimize ScalarEvolution's SCEVComplexityCompare predicate: don't go
scrounging through SCEVUnknown contents and SCEVNAryExpr operands;
instead just do a simple deterministic comparison of the precomputed
hash data.
Also, since this is more precise, it eliminates the need for the slow
N^2 duplicate detection code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105540 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 700012231d58cd3f1bab21cb0e003d98253045a4 |
|
28-May-2010 |
Dan Gohman <gohman@apple.com> |
ConstantFoldConstantExpression can theoretically return null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104948 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| acd8cab84341b8298b72c45c40483abf1e402662 |
|
04-May-2010 |
Dan Gohman <gohman@apple.com> |
Use the SCEVAddRecExpr::getPostIncExpr utility function instead
of doing the same thing manually.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102997 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c0ed0091dc1cd6d61019a1c2c73a0d956506ad00 |
|
04-May-2010 |
Dan Gohman <gohman@apple.com> |
Fix a copy+pasto.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102996 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| deff621abdd48bd70434bd4d7ef30f08ddba1cd8 |
|
04-May-2010 |
Dan Gohman <gohman@apple.com> |
Use getConstant instead of getIntegerSCEV. The two are basically the
same, now that getConstant has overloads consistent with ConstantInt::get.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102965 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f16c6803d72401aef50dfffded89edce28e184d3 |
|
03-May-2010 |
Dan Gohman <gohman@apple.com> |
Silence warnings about -1 being converted to an unsigned value.
Also, pass true for isSigned even when creating constants for unsigned
comparisons, because the point is to create an all-ones constant,
rather than UINT64_MAX, even for integers wider than 64 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102946 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 34c3e36e6317b0ed448ccd2c567d5b088275fd7d |
|
03-May-2010 |
Dan Gohman <gohman@apple.com> |
Use isTrueWhenEqual and isFalseWhenEqual instead of assuming that
SimplifyICmpOperands will simplify such cases to EQ or NE. This makes
the correcntess of the code independent on SimplifyICmpOperands doing
certain simplifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102927 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a189bae771262aa237ce983a89d1289a67682b68 |
|
03-May-2010 |
Dan Gohman <gohman@apple.com> |
In ScalarEvolution::print, don't bother printing out the SCEVs for
comparison instructions, since they aren't interesting, despite having
integer result types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102925 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3abb69c07fe6b161c6e7572c75e465955d9911e7 |
|
03-May-2010 |
Dan Gohman <gohman@apple.com> |
In SimplifyICmpOperands, avoid needlessly swapping the operands in the
case where both are addrecs in unrelated loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102924 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 03557dc0ad0baf42259f298fd56c2c521a9500ad |
|
03-May-2010 |
Dan Gohman <gohman@apple.com> |
Factor out the new <= and >= analysis code into SimplifyICmpOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102922 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8833c32108b026e803a4d1ddd6ab1badd3f9dbbc |
|
30-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Set isSigned to true when creating an all-ones integer constant, even
for unsigned purposes, so >64-bit integer values get a full all-ones
value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102739 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b6fd0b481c265449ffcd10c66fb1415cf9000a79 |
|
30-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Silence compiler warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102734 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9f93d30a26ae9928f886ef7271efeafcea2a00a6 |
|
24-Apr-2010 |
Dan Gohman <gohman@apple.com> |
ScalarEvolution support for <= and >= loops.
Also, generalize ScalarEvolutions's min and max recognition to handle
some new forms of min and max that this change makes more common.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102234 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d19bba69ad92311c64c8d55d69c74543933e451e |
|
24-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Use SimplifyICmpOperands in isKnownPredicate too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102233 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d4da5af271eee5d0961a57e17a71283180566204 |
|
24-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Update isImpliedCond to use the new SimplifyICmpOperands utility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102232 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e979650fa5faf4b1253f623662a8d9c81a4a4fc3 |
|
24-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Add a new utility function SimplifyICmpOperands. Much of this code is
refactored out of ScalarEvolution::isImpliedCond, which will be updated
to use this new utility routine soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102229 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c6863989fc268ee0ff1469e4856e2e9404e67336 |
|
23-Apr-2010 |
Dan Gohman <gohman@apple.com> |
When it doesn't matter whether zero or sign extension is used,
use ScalarEvolutions "any" extend function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102156 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ddb3eafc32187af2ee2311a27344cb53d4307d63 |
|
22-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Don't attempt to analyze values which are obviously undef. This fixes some
assertion failures in extreme cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102042 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a560fd28c01367ffd7b64bbeace856b50af1753c |
|
21-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Make ScalarEvolution::getConstant support pointer types, for consistency
with ScalarEvolution's overall approach to pointer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a5145c8d5ad6433cd490ce2e19584256b380d6b3 |
|
16-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Fix SCEVCommutativeExpr::print to be robust in the case of improper
expression canonicalization. Its job is to print what's there, not to
make judgements about it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101461 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 005752bbe72868b548bba93dbc1ea46ffe8e5b2c |
|
15-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Make getPredecessorWithUniqueSuccessorForBB return the unique successor
in addition to the predecessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101374 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2c93e390723a17b97b59c3a0f6b4989767b7d86a |
|
14-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101248 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 28287794d4e9e1e07742f8a937cfc2be8af627c6 |
|
13-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution to simplify smax and umax when it can prove
that one operand is always greater than another.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101142 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3ab131243e0150854df2f94ea3f472cb7ca00236 |
|
13-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Minor code micro-optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101141 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bca091d5617ce78f300f9af4cb5515528b514147 |
|
13-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Micro-optimize a few hot spots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101086 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6ab10f69a9804c1915202992e4afebea63604535 |
|
13-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Add fast paths to ScalarEvolution::getSizeOf and getOffsetOf, as
they're used a lot by getNodeForGEP, which can be called a lot.
This speeds up -iv-users by around 15% on several testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101083 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 27dead44e0d198c71c317ff88ab02fc5f0fb947d |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Generalize ScalarEvolution's PHI analysis to handle loops that don't
have preheaders or dedicated exit blocks, as clients may not otherwise
need to run LoopSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101030 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 646e047765a2d4c38555550fddde66d1e003aece |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Rewrite the overflow checking in the get{Signed,Unsigned}Range code for
AddRecs so that it checks for overflow in the computation that it is
performing, rather than just checking hasNo{Signed,Unsigned}Wrap, since
those flags are for a different computation. This fixes a bug that
impacts an upcoming change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101028 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5ee60f75087021ab02fa72535593d598c3afe5e2 |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101001 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 53c66eacc417c0113fba7159487b90005dc8f91e |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Enhance ScalarEvolution::isKnownPredicate with support for
loop conditions which are invariants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100995 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b64cf896f8c6648b2c2bce15107d2892b909f367 |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100994 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bc7129f9dbc6651407134e80a4202adc2ef2511c |
|
12-Apr-2010 |
Dan Gohman <gohman@apple.com> |
When creating a ConstantRange for [n,UINT_MAX], special case n == 0, because
ConstantRange(0, 0) creates an empty range rather than a full one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100993 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3948d0b8b0a71fabf25fceba1858b2b6a60d3d00 |
|
11-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Rename isLoopGuardedByCond to isLoopEntryGuardedByCond, to emphasise
that it's only testing for the entry condition, not full loop-invariant
conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100979 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e05678132345eb8a632362dbd320ee7d36226e67 |
|
09-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Add variants of ult, ule, etc. which take a uint64_t RHS, for convenience.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100824 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8ef5caa80a5f40ba34d02f32f6ba4b4601268f89 |
|
08-Apr-2010 |
Dan Gohman <gohman@apple.com> |
Revert this change from a while ago; ScalarEvolution shouldn't analyze
undef as 0, since it can't force other analyses to intepret the undef
in the same way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100749 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9553188fccbf0ae9c5b6bef26d0d2bd5feff8b59 |
|
18-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Define placement new wrappers for BumpPtrAllocator and
RecyclingAllocator to allow client code to be simpler, and
simplify several clients.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98847 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c93b4cff89d85a13d4eaf1551af9fab276b88450 |
|
18-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Add the ability to "intern" FoldingSetNodeID data into a
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.
Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98829 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f9e64729afec646fe93b51417e66e552e8e630a4 |
|
18-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Reapply r98755 with a thinko which miscompiled gengtype fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98793 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ebf78f18df84a63295c748148f54f091234ed099 |
|
17-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Revert 98755, which may be causing trouble.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98762 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0afc29c3e6ba240ee187fd34ba1ecbe1175c879e |
|
17-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Change SCEVNAryExpr's operand array from a SmallVector to a plain
pointer and length, and allocate the arrays in ScalarEvolution's
BumpPtrAllocator, so that they get released when their owning
SCEV gets released. SCEVs are immutable, so they don't need to worry
about operand array resizing. This fixes a memory leak reported
in PR6637.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98755 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4ecbca558f8ee558dd0e84e079f16528fd9768f2 |
|
10-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Avoid analyzing instructions in blocks not reachable from the entry block.
They are lots of trouble, and they don't matter. This fixes PR6559.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98103 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3f46a3abeedba8d517b4182de34c821d752db058 |
|
01-Mar-2010 |
Dan Gohman <gohman@apple.com> |
Spelling fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97453 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 85669637139089eaed8def1583ac04266c9654e2 |
|
25-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Make LoopSimplify change conditional branches in loop exiting blocks
which branch on undef to branch on a boolean constant for the edge
exiting the loop. This helps ScalarEvolution compute trip counts for
loops.
Teach ScalarEvolution to recognize single-value PHIs, when safe, and
ForgetSymbolicName to forget such single-value PHI nodes as apprpriate
in ForgetSymbolicName.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97126 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e177c9a9bcd84ca654427b869900c858a9a48e1a |
|
24-Feb-2010 |
Dan Gohman <gohman@apple.com> |
ConstantFoldInstOperands can theoretically return null if it
didn't fold anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97049 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8f767d987f5603b024054095beb75a87a8476757 |
|
24-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Simplify this code; these casts aren't necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97048 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f6d009fb6fc19d9f7ee7cdc528bf8e83a758facc |
|
24-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Convert a few more backedge-taken count functions to use BackedgeTakenInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97042 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 454d26dc43207ec537d843229db6f5e6a302e23d |
|
22-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Remove unused variables and parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96780 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bc02853b8995b9c6402096912cd551f676679659 |
|
19-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Add a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96688 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 00cb5b724547a821516292fe5cded7c6a5358bda |
|
19-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to compute a tripcount for a loop with
true or false as its exit condition. These are usually eliminated by
SimplifyCFG, but the may be left around during a pass which wishes
to preserve the CFG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96683 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 45a2d7d44ae697e28df383d31455145fb754ac58 |
|
19-Feb-2010 |
Dale Johannesen <dalej@apple.com> |
recommit 96626, evidence that it broke things appears
to be spurious
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96662 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| efd9e9505167a398ba3c4924b09a47bd4d688e51 |
|
19-Feb-2010 |
Dale Johannesen <dalej@apple.com> |
Revert 96626, which causes build failure on ppc Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96653 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| aa11defd1c66dbde0c757c99791c4ae4d740fc3e |
|
19-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Indvars needs to explicitly notify ScalarEvolution when it is replacing
a loop exit value, so that if a loop gets deleted, ScalarEvolution
isn't stick holding on to dangling SCEVAddRecExprs for that loop. This
fixes PR6339.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96626 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1df9859c40492511b8aa4321eb76496005d3b75b |
|
16-Feb-2010 |
Duncan Sands <baldrick@free.fr> |
There are two ways of checking for a given type, for example isa<PointerType>(T)
and T->isPointerTy(). Convert most instances of the first form to the second form.
Requested by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96344 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b0bc6c361da9009e8414efde317d9bbff755f6c0 |
|
15-Feb-2010 |
Duncan Sands <baldrick@free.fr> |
Uniformize the names of type predicates: rather than having isFloatTy and
isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96223 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 50922bbe74cf7a22ecb1849014b7c5d9e3580a20 |
|
15-Feb-2010 |
Dan Gohman <gohman@apple.com> |
When testing whether a given SCEV depends on a temporary symbolic
name, test whether the SCEV itself is that temporary symbolic name,
in addition to checking whether the symbolic name appears as a
possibly-indirect operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96216 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 39125d8ef94cbadccd7339d3344e114dedaab12c |
|
13-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Override dominates and properlyDominates for SCEVAddRecExpr, as a
SCEVAddRecExpr doesn't necessarily dominate blocks merely dominated
by all of its operands. This fixes an abort compiling 403.gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96056 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f451cb870efcf9e0302d25ed05f4cac6bb494e42 |
|
10-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Fix "the the" and similar typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 32efba698df6aa35335eeb44d89288352d04746d |
|
04-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Change the argument to getIntegerSCEV to be an int64_t, rather
than int. This will make it more convenient for LSR, which does
a lot of things with int64_t offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95281 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8db08df5d3668e92cf4ba6f35743464c42fa986f |
|
02-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Various code simplifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95044 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4f8eea82d8967cffa85b9df6c9255717b059009e |
|
01-Feb-2010 |
Dan Gohman <gohman@apple.com> |
Generalize target-independent folding rules for sizeof to handle more
cases, and implement target-independent folding rules for alignof and
offsetof. Also, reassociate reassociative operators when it leads to
more folding.
Generalize ScalarEvolution's isOffsetOf to recognize offsetof on
arrays. Rename getAllocSizeExpr to getSizeOfExpr, and getFieldOffsetExpr
to getOffsetOfExpr, for consistency with analagous ConstantExpr routines.
Make the target-dependent folder promote GEP array indices to
pointer-sized integers, to make implicit casting explicit and exposed
to subsequent folding.
And add a bunch of testcases for this new functionality, and a bunch
of related existing functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94987 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0f5efe56258f8cd6ceff4d7955a5d80144cd9cb0 |
|
28-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Remove SCEVAllocSizeExpr and SCEVFieldOffsetExpr, and in their place
use plain SCEVUnknowns with ConstantExpr::getSizeOf and
ConstantExpr::getOffsetOf constants. This eliminates a bunch of
special-case code.
Also add code for pattern-matching these expressions, for clients that
want to recognize them.
Move ScalarEvolution's logic for expanding array and vector sizeof
expressions into an element count times the element size, to expose
the multiplication to subsequent folding, into the regular constant
folder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94737 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c9c36cb3d97e2aeb86b35e0ba168769d06f6f058 |
|
26-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Make the unsigned-range code more consistent with the signed-range code,
and clean up some loose ends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94572 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 155eec7fa9f39e02ffcdfb2fd646680bf20f4047 |
|
26-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Fix a typo in a comment that Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94562 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 93dacadb4672c2054a8b8e77be4d721c6bda52e8 |
|
26-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Rename ItCount to BECount, since it holds a backedge-taken count rather
than an iteration count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94549 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 52fddd3e36a9a78767decb0a0f7aa4071dcdbbdf |
|
26-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Fix the the ceiling-division used in computing the MaxBECount so that it doesn't
have trouble with an intermediate add overflowing. Also, be more conservative
about the case where the induction variable in an SLT loop exit can step past
the RHS of the SLT and overflow in a single step.
Make getSignedRange more aggressive, to recover for some common cases which
the above fixes pessimized.
This addresses rdar://7561161.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94512 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a10756ee657a4d43a48cca5c166919093930ed6b |
|
21-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Re-implement the main strength-reduction portion of LoopStrengthReduction.
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.
It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 67847538148ed956aaa14a07a77902fb991445f2 |
|
19-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Add a comment and tidy up some whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93932 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1cd9275c8d612bd1c92fc7ba436b60aaead1efbf |
|
19-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Give ScalarEvolution access to the DominatorTree. It'll need this
to make more intellegent AddRec folding decisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93930 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3073329c532aab96b58a322f2ac8bf93abefc60e |
|
09-Jan-2010 |
Dan Gohman <gohman@apple.com> |
Use WriteAsOperand instead of getName() to print loop header names,
so that unnamed blocks are handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93059 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 63c9463c62fce8cbe02176dfa2d73f375a06f1f2 |
|
23-Dec-2009 |
David Greene <greened@obbligato.org> |
Remove dump routine and the associated Debug.h from a header. Patch up
other files to compensate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92075 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 25e0e87f8519914ea8f755a1a131d30655f5a174 |
|
23-Dec-2009 |
David Greene <greened@obbligato.org> |
Convert debug messages to use dbgs(). Generally this means
s/errs/dbgs/g except for certain special cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92067 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 355b4f3c199990feb0e8a1d50e3bbc159eca7e7b |
|
19-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Fix a spello in a comment that Nick spotted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91742 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 28680d33eeafba7bf0e935200e20360c7dc27bde |
|
19-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Make this comment more precise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91722 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 59de33ef3934eb98f0c5dfbfb2c56fb4b80bda56 |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Revert this use of NUW/NSW also. Overflow-undefined multiplication isn't
associative either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91701 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3a5d409f3c2eccf1d1f0a4616023760829a4db67 |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Revert this use of NSW; this one isn't actually safe. NSW addition
is not reassociative.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91667 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2df72c144164cbb06e505f3af506e1bb69053e73 |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Delete an unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91659 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d281ed2d03654b9cdb290a2d7c73dfe7b826e554 |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Preserve NSW information in more places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91656 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 92329c7fbe572892c17aa2d2542a10e3ea16132f |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Add Loop contains utility methods for testing whether a loop
contains another loop, or an instruction. The loop form is
substantially more efficient on large loops than the typical
code it replaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91654 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5d984917a4408cce585c8786fc813b1d0d9fa920 |
|
18-Dec-2009 |
Dan Gohman <gohman@apple.com> |
Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91651 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c6501b13c0ffc9b0a01bb1d8771afa70afa59281 |
|
23-Nov-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Remove dead LLVMContext argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89641 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1ba3b6c5654ac6c0cf6ff278e0130c6f2f5ef97d |
|
10-Nov-2009 |
Dan Gohman <gohman@apple.com> |
Pass the (optional) TargetData object to ConstantFoldInstOperands
and ConstantFoldCompareInstOperands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86626 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8f73deaa8732a556046bf4ac6207be55972e3b74 |
|
10-Nov-2009 |
Chris Lattner <sabre@nondot.org> |
fix ConstantFoldCompareInstOperands to take the LHS/RHS as
individual operands instead of taking a temporary array
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7b550ccfc5a3346c17e0390a59e2d6d19bc52705 |
|
06-Nov-2009 |
Chris Lattner <sabre@nondot.org> |
remove a bunch of extraneous LLVMContext arguments
from various APIs, addressing PR5325.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86231 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 076124ef26ff67f88663bd11f3b4d6b3d3bb3a9d |
|
01-Nov-2009 |
Douglas Gregor <dgregor@apple.com> |
Reverting 85714, 85715, 85716, which are breaking the build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85717 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2166f6229042a4d3d65847ebe0d453cd664682ef |
|
01-Nov-2009 |
Dan Gohman <gohman@apple.com> |
Add a function to Passes.h to allow clients to create instances
of the ScalarEvolution pass without needing to #include ScalarEvolution.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85716 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4c7279ac726e338400626fca5a09b5533426eb6a |
|
31-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
clears out more information than just the stored backedge taken count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85664 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f5a86f45e75ec744c203270ffa03659eb0a220c1 |
|
25-Oct-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Remove includes of Support/Compiler.h that are no longer needed after the
VISIBILITY_HIDDEN removal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6726b6d75a8b679068a58cb954ba97cf9d1690ba |
|
25-Oct-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7a721956f886d465f920d06bebb64c0f0b328c39 |
|
09-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Revert r83606 and add comments explaining why it isn't safe.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83649 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4db3581a288dcd7e56f0a1ecdc2316cd85e183c7 |
|
09-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Preserve HasNSW and HasNUW when constructing SCEVs for Add and Mul
instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83606 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3645b01002e7ac244c1f3d163e5e350df21d869d |
|
09-Oct-2009 |
Dan Gohman <gohman@apple.com> |
Add the ability to track HasNSW and HasNUW on more kinds of SCEV expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83601 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6e70e31810464289a9e9b37e0345847e3ca5d5cf |
|
27-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Add a properlyDominates member function to ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82898 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1f96e67f78110d0ac5b30a32375097a28f869c63 |
|
17-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to reason about no-wrap flags on loops
where the induction variable has a non-unit stride, such as {0,+,2}, and
there are expressions such as {1,+,2} inside the loop formed with
or or add nsw operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82151 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e7125f4babb536df3a2573b6166954da7753c6b8 |
|
03-Sep-2009 |
Dan Gohman <gohman@apple.com> |
Remove references to expression "handles", which are no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80918 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a5505cb9c992cb4bde5656fb6bd14d89b8f1a744 |
|
31-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Don't use an iterator which is potentially invalidated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 42214899082bfb5b6f8c6a09d355fec9ef4a0e82 |
|
31-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Extend the ValuesAtScope cache to cover all expressions, not just
SCEVUnknowns, as the non-SCEVUnknown cases in the getSCEVAtScope code
can also end up repeatedly climing through the same expression trees,
which can be unusably slow when the trees are very tall.
Also, add a quick check for SCEV pointer equality to the main
SCEV comparison routine, as the full comparison code can be expensive
in the case of large expression trees.
These fix compile-time problems in some pathlogical cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80623 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 041de42d42f67ab6bb3d012805621e5b7adcc7d9 |
|
25-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Don't assume that two identical instructions that read from memory
will always return the same value. This isn't currently necessary,
since this code doesn't currently ever get called under circumstances
where it would matter, but it may some day.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80017 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 26812320b7bf27fe50e8bf51623a560f0eba449b |
|
25-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution about GlobalAliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80014 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9661c13c37d017df6f91a399c0160b82e8a6c39f |
|
24-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
remove a few dead insertion methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79882 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 45cfe545ec8177262dabc70580ce05feaa1c3880 |
|
23-Aug-2009 |
Chris Lattner <sabre@nondot.org> |
Change Pass::print to take a raw ostream instead of std::ostream,
update all code that this affects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5078f84c82814e4d33846f9ef54281619d362f8a |
|
20-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrap
and hasNoSignedWrap, for consistency with the nuw and nsw properties.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79539 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4c0d5d5db876b0628bdf6a2174263a1c0a9130e2 |
|
20-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Various comment and whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79533 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8255573835970e7130ba93271972172fb335f2ec |
|
19-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Use hasDefinitiveInitializer() instead of testing the same thing
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79441 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c40f17b08774c2dcc5787fd83241e3c64ba82974 |
|
18-Aug-2009 |
Dan Gohman <gohman@apple.com> |
Generalize ScalarEvolution to be able to analyze GEPs when
TargetData is not present. It still uses TargetData when available.
This generalization also fixed some limitations in the TargetData
case; the attached testcase covers this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79344 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1d0be15f89cb5056e20e2d24faa8d6afb1573bca |
|
13-Aug-2009 |
Owen Anderson <resistor@mac.com> |
Push LLVMContexts through the IntegerType APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8a11c98b1d569c87183e0f94ffd8604b9659d3ac |
|
08-Aug-2009 |
Andreas Bolka <a@bolka.at> |
Fix copy-pasto.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78426 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a7235ea7245028a0723e8ab7fd011386b3900777 |
|
31-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are
metadata related, which I'm waiting on to avoid conflicting with Devang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77721 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| debcb01b0f0a15f568ca69e8f288fade4bfc7297 |
|
30-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move types back to the 2.5 API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77516 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| baf3c404409d5e47b13984a7f95bfbd6d1f2e79e |
|
29-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move ConstantExpr to 2.5 API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 07ad19b509530b43e6a9acc5c1285cb560dd7198 |
|
27-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Fix wording in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77193 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bc3d77a0df8f863956cd681131b7258e91ba6ce8 |
|
25-Jul-2009 |
Dan Gohman <gohman@apple.com> |
SCEV objects are no longer reference-counted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77080 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 19378d622eebdf94a582555076eab7ba8d5c20ea |
|
25-Jul-2009 |
Dan Gohman <gohman@apple.com> |
When attempting to sign-extend an addrec by interpreting
the step value as unsigned, the start value and the addrec
itself still need to be treated as signed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77078 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eb490a7aa34c873b1bc401eb2c45a4d71a62be37 |
|
25-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution to make use of no-overflow flags when
analyzing add recurrences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77034 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fef8bb24de86ff41d09a7787c6c52b058a853e39 |
|
25-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Instead of eagerly creating new SCEVs to replace all SCEVs that are
affected after a PHI node has been analyzed, just remove affected
SCEVs from the Scalars map, so that they'll be (lazily) recreated as
needed. This avoids creating SCEV objects that aren't actually needed.
Also, rewrite the associated def-use walking code to be non-recursive
and to continue traversing past Instructions that don't have an
entry in the Scalars map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77032 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eed707b1e6097aac2bb6b3d47271f6300ace7f2e |
|
25-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77011 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d1e5db6c7c718edaa0c44e4a758f2cd4f62cdd68 |
|
24-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Fix whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76929 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e922c0201916e0b980ab3cfe91e1413e68d55647 |
|
22-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Get rid of the Pass+Context magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0f4b285a5b86b1e9c6e27bb46028dfbb77bb5db4 |
|
22-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Replace the original ad-hoc code for determining whether (v pred w) implies
(x pred y) with more thorough code that does more complete canonicalization
before resorting to range checks. This helps it find more cases where
the canonicalized expressions match.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76671 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a16b5764e3a39d37178864592d7bf7c483676079 |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Make the range calculations for addrecs to be more conservative,
as they aren't currently prepared to handle complicated overflow
cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76524 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c2b015e4c0151ca7144438afd98e6f7091656e5d |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76523 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c268e7c51ef8149a98e64b64b6e51e486043ab6b |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76521 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f117ed462c17bcebe7a0f420885e2d7d55465912 |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Add a comment to clarify why there isn't any code in this spot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76505 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4500e9eb803616416dc1c8bbc8a7f230c2a0bff2 |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Remove the code that tried to evaluate whether (A pred B) is known
by determining if (B pred (B-A)) is known, as it doesn't handle
overflow correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76504 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0d5bae41fb86188d62dbc39de629ae0de71f93e0 |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Minor code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76496 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 746f3b1a9ba22d9b9622240814899417941d2480 |
|
21-Jul-2009 |
Dan Gohman <gohman@apple.com> |
The upper argument of ConstantRange is exclusive, not inclusive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76492 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f2411744214dad8c71044aac2977ca77e9ebf028 |
|
20-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Revert the addition of hasNoPointerOverflow to GEPOperator.
Getelementptrs that are defined to wrap are virtually useless to
optimization, and getelementptrs that are undefined on any kind
of overflow are too restrictive -- it's difficult to ensure that
all intermediate addresses are within bounds. I'm going to take
a different approach.
Remove a few optimizations that depended on this flag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76437 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ca178908c8dc2303a1fb54a8a93bab0f0b964e11 |
|
17-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Add a new Operator class, for handling Instructions and ConstantExprs
in a convenient manner, factoring out some common code from
InstructionCombining and ValueTracking. Move the contents of
BinaryOperators.h into Operator.h and use Operator to generalize them
to support ConstantExprs as well as Instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76232 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 001dbfebcbbded8c8e74b19e838b50da2b6c6fb5 |
|
16-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a number of issues in
our current context-passing stuff, which is also fixed here
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 850f791abc3ffc3f5fb73712df2f4a2d4cc0b998 |
|
16-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Fill in some holes in ScalarEvolution's loop iteration condition
analysis. This allows indvars to emit a simpler loop trip count
expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76085 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9adc0abad3c3ed40a268ccbcee0c74cb9e1359fe |
|
15-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move EVER MORE stuff over to LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75703 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c23197a26f34f559ea9797de51e187087c039c42 |
|
14-Jul-2009 |
Torok Edwin <edwintorok@gmail.com> |
llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 69fcae91a4c46af5c13be1618c7592e95597b327 |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Make SCEVCallbackVH::allUsesReplacedWith more thorough in removing
users from the Scalars map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75634 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a653fc5f6bdfa016ba703c9b6d520b697c987517 |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Add a comment about why ScalarEvolution doesn't recognize non-loop PHIs
even when they're obvious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 385396221bc244d6592a60133c55874ff57571ac |
|
14-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move more functionality over to LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75559 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c902e136d1f15f54d215f853a4a378531fc601e5 |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Print a newline after printing a Value, now that Value's operator<<
doesn't print a newline.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75543 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ddf9f99a9face1bdfc51a5107508a64432d86ad1 |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Fix a few assertion strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75530 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f5074ec9634d51472bc6e2114deea0afb6677dd8 |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75525 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ba70188f895647f0a56bd69717ec3a0f7ed717df |
|
14-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Fix an 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75524 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 85b05a2e60e0e696739167b52cc7cc3e7cf390c0 |
|
13-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Reapply 75252, with a fix to avoid the infinite recursion case. The
check for avoiding re-analyzing a widening cast needed to happen
earlier, as getSCEV itself may result in a isLoopGuardedByCond query.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75511 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 73c6b7127aff4499e4d6a2edb219685aee178ee1 |
|
13-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Move more functionality over to LLVMContext.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75497 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 69fbc7f477c21ce1d8ae5a4aa8a701e47aa2d163 |
|
13-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Move the memoization check for SCEVSignExtendExpr and
SCEVZeroExtendExpr ahead of the most expensive analysis. This
speeds up analysis and helps avoid pathologically bad behavior
on the testcase in PR4534.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75496 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c050fd94c29e31414591e3a18aa20049e6b3a84f |
|
13-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Convert SCEV from FoldingSetNode to FastFoldingSetNode. This eliminates
a bunch of redundent code in Profile methods, and prepares for upcoming
changes to do improved memoization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75494 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0a5372ed3e8cda10d724feda3c1a1c998db05ca0 |
|
13-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp.
This involves temporarily hard wiring some parts to use the global context. This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75445 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d0cca2415099e80bd11e6b2090896719b07afd93 |
|
11-Jul-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Revert r75252 which was causing some crashes at compile time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75384 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c25e7581b9b8088910da31702d4ca21c4734c6d7 |
|
11-Jul-2009 |
Torok Edwin <edwintorok@gmail.com> |
assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1afdc5f3565f09d33de888fede895540059dca4c |
|
10-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Remove ScalarEvolution::hasSCEV, which isn't being used, and which
breaks encapsulation. Also remove a dead prototype for setSCEV.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75272 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1b342583f6fc42f548912632f6aa24fc6e11986a |
|
10-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Generalize ScalarEvolution's cast-folding code to support more kinds
of loops. Add several new functions to for working with ScalarEvolution's
add-hoc value-range analysis functionality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75252 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 59ae6b99872953761dfda5984801d23a66692673 |
|
08-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Make the code that updates ScalarEvolution's internal state in response
to a loop deletion more thorough. Don't prune the def-use tree search at
instructions that don't have SCEVs computed, because an instruction with
a user that has a computed SCEV may itself lack a computed SCEV. Also,
remove loop-related values from the ValuesAtScopes and
ConstantEvolutionLoopExitValues maps as well.
This fixes a regression in 483.xalancbmk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75030 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0bba49cebc50c7bd4662a4807bcb3ee7f42cb470 |
|
07-Jul-2009 |
Dan Gohman <gohman@apple.com> |
Change all SCEV* to SCEV *.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74918 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 07cf79ef537caff6d39145f190a28a336e629b6f |
|
07-Jul-2009 |
Owen Anderson <resistor@mac.com> |
"LLVMContext* " --> "LLVMContext *"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74878 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 76f600b205606a055ec35e7d3fd1a99602329d67 |
|
07-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Finish LLVMContext-ing lib/Analysis. This required pushing LLVMContext's through the ValueTracking API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74873 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 508955156a25a9abc470a29e1760aa176d341cf9 |
|
06-Jul-2009 |
Owen Anderson <resistor@mac.com> |
Thread LLVMContext through the constant folding APIs, which touches a lot of files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74844 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d1ec98923e2eee1fb4e6cd1f91b80210f021e301 |
|
04-Jul-2009 |
Nick Lewycky <nicholas@mxc.ca> |
When comparing constants, consider a less wide constant to be "less complex"
than a wider one, before trying to compare their contents which will crash
if their sizes are different.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74792 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c39f44b521eaa05804f55d1f4b8c2a178953f3c6 |
|
30-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Minor code cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74551 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 099879687f898bdad5d5ff4d74efe0c2e5e284d1 |
|
29-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Use getSCEV instead of getUnknown to create a SCEV for a
Constant. This lets ConstantInts be handled as SCEVConstant instead
of SCEVUnknown, as getUnknown no longer has special-case code for
ConstantInt and friends. This usually doesn't affect the final
output, since the constants end up getting folded later, but it
does make intermediate expressions more obvious in many cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74459 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cffddcd72620d76e160c25780277c26d6792ca2c |
|
29-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Don't cache PHI exit values from exhaustive evaluations, because
an individual exhaustive evaluation reflects only the exit value
implied by an individual exit, which may differ from the actual
exit value of the loop if there are other exits. This fixes PR4477.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74447 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 23737e04235b6cab4c51546887397a9e53bf757c |
|
29-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Simplify this code, and avoid using APInt(). This fixes
(otherwise harmless) uninitialized value warnings that
Duncan found with gcc-4.4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74437 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1c34375f79b7786351c27ae45f0412cfdfa004ed |
|
27-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Convert ScalarEvolution to use BumpPtrAllocator and FoldingSet, instead
of a team of individual allocations and a team of std::maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74393 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9a80b459ed5c6c55f4e20e443e86c459e89170c9 |
|
27-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution::getAddRecExpr's code which canonicalized the
nesting order of nested AddRec expressions to skip the transformation
if it would introduce an AddRec with operands not loop-invariant
with respect to its loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74343 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e890eead222abf84fc171b28891a68b65e9addf5 |
|
27-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix SCEVAddRecExpr::isLoopInvariant to test if all of its operands
are loop invariant, not just the start operand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74338 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9311ef6a916cb5d95056842b26848fd56bcc0ebc |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Minor whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74074 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e5aceed168799af9c109308e84c4845aa6fbe77a |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Simplify [su]max(MAX, n) to MAX. This comes up in loop tripcount
computations in loops with multiple exits.
Adjust the testcase for PR4436 so that the relevant portion isn't
optimized away.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74073 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 64a845e8361b7f27dc06b069ecd71c83927a654f |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Delete some orphaned comments, fix some 80-column violations,
and tidy up a few other formatting issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74060 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 40a5a1b39ee1cd40ff9d04740386b667fb27b340 |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Extend ScalarEvolution's multiple-exit support to compute exact
trip counts in more cases.
Generalize ScalarEvolution's isLoopGuardedByCond code to recognize
And and Or conditions, splitting the code out into an
isNecessaryCond helper function so that it can evaluate Ands and Ors
recursively, and make SCEVExpander be much more aggressive about
hoisting instructions out of loops.
test/CodeGen/X86/pr3495.ll has an additional instruction now, but
it appears to be due to an arbitrary register allocation difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74048 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 62849c065ebfd214298e3fcb0028422d24af68bb |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Teach GetMinSignBits about SCEVAddExprs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6bbcba18db6d1f4bc0f0157df41cc02627bc4aa9 |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Move the special cases for constants out of getUnknown and into
createSCEV. Also, recognize UndefValue in createSCEV.
Change getIntegerSCEV's comment to avoid mentioning FP types,
and re-implement it in terms of getConstant instead of getUnknown.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74041 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b8be8b70a2789f1ccb12ce4e68e54e5992d7e5a0 |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Use ScalarEvolution::getConstant instead of getUnknown to create
SCEVConstants. This cleanup is a step toward letting getUnknown
be simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74037 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| aa551ae10e0cac338a9fa1ff9e20571eae07aac2 |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Include the maximum trip count expression in ScalarEvolution's print output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74035 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4d289bf4af88759be173a1a809bf8c092d729764 |
|
24-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Add an isAllOnesValue utility function, similar to isZero and isOne.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74032 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 91380b7239a3d09236b6fab64ba31b7ce0e0cb13 |
|
23-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix a bug in the trip-count computation with And/Or. If either of the
sides is CouldNotCompute, the resulting exact count must be CouldNotCompute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73920 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 753ad615f96c3d56d6f17983bdba88012e88677c |
|
22-Jun-2009 |
Owen Anderson <resistor@mac.com> |
Remove the parent pointer from SCEV, since it did not end up being needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73907 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 372b46cad9f745859f542f9d2216991585ae83f4 |
|
22-Jun-2009 |
Owen Anderson <resistor@mac.com> |
SCEVHandle is no more!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73906 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d32f5bf22d175c7e176c626c66fd7de71c240b65 |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix some typos that Duncan noticed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73903 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 08367b61638b4d446ebab69e2aad6431daa77ba7 |
|
22-Jun-2009 |
Owen Anderson <resistor@mac.com> |
Banish global state from ScalarEvolution! SCEV uniquing is now done by tables attached to the ScalarEvolution pass.
This also throws out the SCEV reference counting scheme, as the the SCEVs now have a lifetime controlled by the
ScalarEvolution pass.
Note that SCEVHandle is now a no-op, and will be remove in a future commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73892 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 60e9b0708a8ce3a7b7eaee9bdceebb2c712514e1 |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Make use of getUMinFromMismatchedTypes when computing backedge-taken
counts for loops with multiple exits, replacing more conservative code
which only handled constants. This is derived from a patch by
Nick Lewycky.
This also fixes llc aborts in ClamAV and others, as
getUMinFromMismatchedTypes takes care of balancing the types before
working with them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73884 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c9759e80f45e5690c3ed3b69c2e9ffd5a1bffd9c |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Add a getUMinFromMismatchedTypes helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73883 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f9a9a9928cc977970d9852292b1c139074ecf055 |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Factor out code for computing umin and smin for SCEV expressions into
helper functions. Based on a patch by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73869 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a334aa7a106d5ebb971862f25daaadad48d96235 |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to analyze loops with multiple exit
blocks, and also exit blocks with multiple conditions (combined
with (bitwise) ands and ors). It's often infeasible to compute an
exact trip count in such cases, but a useful upper bound can often
be found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73866 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 743ab498d8cc4e828c79a68a6184eb8aeb95b4a1 |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Delete an unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73865 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 51f53b7f5a0e859ceef995c61667905166b96f1b |
|
22-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution's backedge-taken count computations to check for
overflow when computing a integer division to round up.
Thanks to Nick Lewycky for noticing this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73862 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 763bad1a2b2c913fe1f3489d6ab450762a1aa5e3 |
|
20-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Generalize isLoopGuardedByCond's checking to consider two
SCEVUnknowns with identical Instructions to be equal. This allows
it to analze cases such as the attached testcase, where the front-end
has cloned the loop controlling expression. Along with r73805, this
lets IndVarSimplify eliminate all the sign-extend casts in the
loop in the attached testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73807 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3964acc2f44ee02cdd4e2a54a5232537bdf3ee73 |
|
20-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros
in the loop backedge-taken count computation of the maximum
possible trip count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73805 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2c364ad4a65737f3bda876f86eba0061ecbd5470 |
|
20-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Make GetMinTrailingZeros a member function of ScalarEvolution,
so that it can access the TargetData member (when available) and
use ValueTracking.h information to compute information for
SCEVUnknown Values.
Also add GetMinLeadingZeros and GetMinSignBits functions,
with minimal implementations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73794 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0c689c5e051228616e301d54a8ea11ebee5caa4a |
|
19-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Make ScalarEvolution::print print getSCEVAtScope values for
expressions, when interesting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4a7893b4527819aae229f539ab9c3eeecc6a10e2 |
|
19-Jun-2009 |
Owen Anderson <resistor@mac.com> |
Add a parent pointer to SCEV, in preparation for getting rid of the global uniquing tables. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73728 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 30fb512e95f6a01f0c9c3426c2263ee0458de8e8 |
|
18-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Recognize n != 0 ? n : 1 as umax(n, 1). Previously only ULT/UGT/ULE/UGE
comparisons were recognized for umax, but instcombine canonicalizes
unsigned comparisons with zero to this simpler form.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73717 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6864db6fac4b9e0c857966e529961c0f31da5814 |
|
18-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Update a comment to reflect the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73704 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9e7d9883b0fbbce54f19936d3d4c870b17b5a758 |
|
18-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix trailing whitespace from ScalarEvolution::print.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73666 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 820528331fbcc0db2149edc0b143753665bc00bf |
|
18-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to recognize another xor(and(x, C), C) case.
If C is a single bit and the and gets analyzed as a truncate and
zero-extend, the xor can be represnted as an add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73664 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fc3641b07a95f649424ee5009a4bed001b5bea62 |
|
18-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Delete unnecessary braces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73663 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3034c106753595f564d5852a2d4398f0acb16b32 |
|
17-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution's Xor handling to not assume that an And
that gets recognized with a SCEVZeroExtendExpr must be an And
with a low-bits mask. With r73540, this is no longer the case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73594 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 61ffa8e37394faca53167b4bbeb3866404745f3a |
|
16-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Instcombine's ShrinkDemandedConstant may strip bits out of constants,
obscuring what would otherwise be a low-bits mask. Use ComputeMaskedBits
to compute what ShrinkDemandedConstant knew about to reconstruct a
low-bits mask value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73540 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6de29f8d960505421d61c80cdb738e16720b6c0e |
|
16-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Support vector casts in more places, fixing a variety of assertion
failures.
To support this, add some utility functions to Type to help support
vector/scalar-independent code. Change ConstantInt::get and
ConstantFP::get to support vector types, and add an overload to
ConstantInt::get that uses a static IntegerType type, for
convenience.
Introduce a new getConstant method for ScalarEvolution, to simplify
common use cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73431 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bd59d7b603c364da52097f171a110a19c886f7bb |
|
15-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Implement more aggressive folding of add operand lists when
they contain multiplications of constants with add operations.
This helps simplify several kinds of things; in particular it
helps simplify expressions like ((-1 * (%a + %b)) + %a) to %b,
as expressions like this often come up in loop trip count
computations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73361 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7f7c4366ca61b3dceea4e37b187e5e1d4447e1b8 |
|
15-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Check for the short-circuiting condition before performing
the potentially expensive erase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73359 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4dfad295475387211012f17bf640a9f8330872be |
|
15-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Do compare constant SCEV values in SCEVComplexityCompare, because
even though the order doesn't matter at the top level of an expression,
it does matter when the constant is a subexpression of an n-ary
expression, because n-ary expressions are sorted lexicographically.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73358 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a82752c9eb5fbdd1b7276fde7349ac9453eb5a75 |
|
15-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Convert several parts of the ScalarEvolution framework to use
SmallVector instead of std::vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73357 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2ce84c8d4784dfd24458a63db8d531917d2f8ba5 |
|
13-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Add a ScalarEvolution::getAnyExtendExpr utility function for performing
extension with unspecified bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73293 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 86fbf2fe4cae21febffa4bb2f64cd0c2ee834694 |
|
06-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Rename UnknownValue to CouldNotCompute, since it holds an instance of
SCEVCouldNotCompute, and not SCEVUnknown.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72999 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5c06f61e577f2c10ea0e6dd78f568fe58910fbbe |
|
06-Jun-2009 |
Devang Patel <dpatel@apple.com> |
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72970 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c965ee223c6077250525048106726e12b59072ac |
|
05-Jun-2009 |
Dan Gohman <gohman@apple.com> |
Remove some unnecessary #includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72948 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 91bb61a1e2c96f727726c2fe7962df3e18ef5416 |
|
26-May-2009 |
Dan Gohman <gohman@apple.com> |
For the return type of SCEVUDivExpr, use the RHS' type instead of
that of the LHS. It doesn't matter for correctness, but the LHS
is more likely than the RHS to be a pointer type in exotic cases,
and it's more tidy to have it return the integer type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72424 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6c0866ca8373da318741cc90ad7afd1bda22bb1b |
|
25-May-2009 |
Dan Gohman <gohman@apple.com> |
Various comment fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72376 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d594e6f0345b3e1e4b640a7099596ca613da16d6 |
|
25-May-2009 |
Dan Gohman <gohman@apple.com> |
Change ScalarEvolution::getSCEVAtScope to always return the original value
in the case where a loop exit value cannot be computed, instead of only in
some cases while using SCEVCouldNotCompute in others. This simplifies
getSCEVAtScope's callers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72375 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a3035a69f95734ff549f3e12d950bf65400329f7 |
|
20-May-2009 |
Dan Gohman <gohman@apple.com> |
Teach SCEV::isLoopInvariant and SCEV::hasComputableLoopEvolution
about the convention from LoopInfo that a null Loop* means the entire
function body.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72152 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1959b7562e57f8394496e761486f23b187ac3f1b |
|
19-May-2009 |
Dan Gohman <gohman@apple.com> |
Make SCEVCallbackVH a private nested class inside ScalarEvolution, as
it's an implementation detail.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72122 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5be18e84766fb495b0bde3c8244c1df459a18683 |
|
19-May-2009 |
Dan Gohman <gohman@apple.com> |
Teach SCEVExpander to expand arithmetic involving pointers into GEP
instructions. It attempts to create high-level multi-operand GEPs,
though in cases where this isn't possible it falls back to casting
the pointer to i8* and emitting a GEP with that. Using GEP instructions
instead of ptrtoint+arithmetic+inttoptr helps pointer analyses that
don't use ScalarEvolution, such as BasicAliasAnalysis.
Also, make the AddrModeMatcher more aggressive in handling GEPs.
Previously it assumed that operand 0 of a GEP would require a register
in almost all cases. It now does extra checking and can do more
matching if operand 0 of the GEP is foldable. This fixes a problem
that was exposed by SCEVExpander using GEPs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72093 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8c562e2d25d319f8bde7a1a60142203f316a2883 |
|
18-May-2009 |
Daniel Dunbar <daniel@zuster.org> |
Silence Release-Asserts warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72011 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 10978bd5918689334d44cd30e5cfe06588b6014d |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution to recognize x^-1 in the case where non-demanded
bits have been stripped out by instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72010 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0bac95e2e2044b574f3aea14a3fdb31c1b95240f |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Delete a redundant 'else'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72009 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8ea94524ed4dee3238689f49f28e616fb183514c |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution::isLoopGuardedByCond to accept a null Loop*, for
consistency with other routines that use a null Loop* to mean code
not contained by any loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72008 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5183caebc199afcdd26f544862c7117c96c2f150 |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Minor code cleanups. Do more of the work before the if statements
instead of within their controlling expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72007 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f78a978d4674c5163663170d8d162479a96d014f |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Add assertion checks to the SCEV operator creation methods to catch
type mismatches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72006 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 859b4824eeb2d88c441e855afe3dd7827dfd62a4 |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Make ScalarEvolution::isLoopGuardedByCond work even when the edge
entering a loop is a non-split critical edge.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72004 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 70a1fe704831f9b842be0b2a2af5f7082b0e540c |
|
18-May-2009 |
Dan Gohman <gohman@apple.com> |
Add an isOne() utility function to ScalarEvolution, similar to isZero()
and similar to ConstantInt's isOne().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 467c430316b7a5b6fa8069531ca8d603b1e1197f |
|
13-May-2009 |
Dan Gohman <gohman@apple.com> |
Add three new helper routines, getNoopOrZeroExtend,
getNoopOrSignExtend, and getTruncateOrNoop. These are similar
to getTruncateOrZeroExtend etc., except that they assert that
the conversion is either not widening or narrowing, as
appropriate. These will be used in some upcoming fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| efb9fbfdab6cab88146792a5db79315313270c7f |
|
12-May-2009 |
Dan Gohman <gohman@apple.com> |
When forgetting SCEVs for loop PHIs, don't forget SCEVUnknown values.
These values aren't analyzable, so they don't care if more information
about the loop trip count can be had. Also, SCEVUnknown is used for
a PHI while the PHI itself is being analyzed, so it needs to be left
in the Scalars map. This fixes a variety of subtle issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71533 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 42a5875e107a5dea72745574b0215d9bcdf6deb4 |
|
12-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix GetMinTrailingZeros for SCEVSignExtend and SCEVZeroExtendExpr to
return the correct value when the cast operand is all zeros. This ought
to be pretty rare, because it would mean that the regular SCEV folding
routines missed a case, though there are cases they might legitimately
miss. Also, it's unlikely anything currently using GetMinTrailingZeros
cares about this case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71532 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 361e54d433e67db5d6b6455f7fd098de8c01f882 |
|
09-May-2009 |
Eli Friedman <eli.friedman@gmail.com> |
Allow scalar evolution to compute iteration counts for loops with a
pointer-based condition. This fixes PR3171.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71354 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 777d2306b36816a53bc1ae1244c0dc7d998ae691 |
|
09-May-2009 |
Duncan Sands <baldrick@free.fr> |
Rename PaddedSize to AllocSize, in the hope that this
will make it more obvious what it represents, and stop
it being confused with the StoreSize.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71349 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c63a62735ba8b2e9011d48afde52e4c67df6f902 |
|
09-May-2009 |
Dan Gohman <gohman@apple.com> |
Don't attempt to handle unsized types in ScalarEvolution's GEP analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71302 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b0285932ab915cacb5534ee4fccd18584c28ab56 |
|
09-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix bogus overflow checks by replacing them with actual
overflow checks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71284 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 728c7f3059916fb0e0f98b4e9e45210fbd3f4340 |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Fold trunc casts into add-recurrence expressions, allowing the
add-recurrence to be exposed. Add a new SCEV folding rule to
help simplify expressions in the presence of these extra truncs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71264 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fb791608115b5193419549b02825ed4337fd3a37 |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix another bug in r71252. This code supports GetElementPtr
constant exprs as well as instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71262 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6bce643c36e7263aada5058f08cd242b4ce6b87d |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Add memoization for getSCEVAtScope results for instructions
which are not analyzed with SCEV techniques, which can require
brute-forcing through a large number of instructions. This
fixes a massive compile-time issue on 400.perlbench (in
particular, the loop in MD5Transform).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71259 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 66a7e857aa5843da3a7d0f52aa09a5935cf565dc |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Make the SCEV* form of getSCEVAtScope public, to allow ScalarEvolution
clients to use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71258 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e810b0d430d989545094cfd080fcd8038f9b31a3 |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix an error from r71252.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71255 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 26466c0eb3451c5c953b3cca8940359152c4f8e3 |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Factor out the code for creating SCEVs for GEPs into a
separate function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71252 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 185cf0395c9d7d72ea12ce4d316a6cb2eab9115e |
|
08-May-2009 |
Dan Gohman <gohman@apple.com> |
Implement several new SCEV folding rules for UDiv SCEVs.
This fixes an old FIXME, and is needed by some upcoming changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71247 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a6b35e201f4588e3321a6e754357a571461687b3 |
|
07-May-2009 |
Dan Gohman <gohman@apple.com> |
SCEVComplexityCompare's new code was missing SCEVUDivExpr. Implement
the SCEVUDivExpr case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71173 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 72861308d5fd60bc0d45a9683da054d4884980ee |
|
07-May-2009 |
Dan Gohman <gohman@apple.com> |
Make ScalarEvolution's GroupByComplexity more thorough. In addition
to sorting SCEVs by their kind, sort SCEVs of the same kind according
to their operands. This helps avoid things like (a+b) being a distinct
expression from (b+a).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71160 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6ee2f3d840fd06f29aa3c5b64a5d0643fd02cef3 |
|
07-May-2009 |
Dan Gohman <gohman@apple.com> |
Trim unnecessary headers. Code in Analysis shouldn't use Transforms
headers due to library dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71159 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ecb403a9d3a340009c266d05cfca2bd778c7b156 |
|
07-May-2009 |
Dan Gohman <gohman@apple.com> |
Factor out a common base class between SCEVCommutativeExpr and
SCEVAddRecExpr. This eliminates redundant code for visiting
all the operands of an expression.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71157 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0a8eb57c3d57a79f382b8db32059ea3689f7a076 |
|
07-May-2009 |
Dan Gohman <gohman@apple.com> |
Use stable_sort instead of plain sort to avoid the risk of generating
trivially different code on different hosts (due to differing
std::sort implementations).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71124 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 35738ac150afafe2359268d4b2169498c6c98c5f |
|
05-May-2009 |
Dan Gohman <gohman@apple.com> |
Re-apply 70645, converting ScalarEvolution to use
CallbackVH, with fixes. allUsesReplacedWith need to
walk the def-use chains and invalidate all users of a
value that is replaced. SCEVs of users need to be
recalcualted even if the new value is equivalent. Also,
make forgetLoopPHIs walk def-use chains, since any
SCEV that depends on a PHI should be recalculated when
more information about that PHI becomes available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70927 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bf2176a00092540e18e8922487975cabefed8265 |
|
05-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix an 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70925 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 92fa56eb58cf8c5f1f076cb14e850f8373e56b9c |
|
05-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix doxygen comment syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70924 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 622ed671b90d449496d582b3a03c7aad1e98324a |
|
05-May-2009 |
Dan Gohman <gohman@apple.com> |
Constify a bunch of SCEV-using code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70919 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f9a77b77c2324b2ca5c644909ebda387daf82fe3 |
|
03-May-2009 |
Dan Gohman <gohman@apple.com> |
Revert r70645 for now; it's causing a variety of regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70661 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| db6fa2964176c34f0e878e101427c28782c93419 |
|
02-May-2009 |
Dan Gohman <gohman@apple.com> |
Convert ScalarEvolution to use CallbackVH for its internal map. This
makes ScalarEvolution::deleteValueFromRecords, and it's code that
subtly needed to be called before ReplaceAllUsesWith, unnecessary.
It also makes ValueDeletionListener unnecessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70645 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fb7d35f22a958747dd3ae8861ae3ce018146131c |
|
02-May-2009 |
Dan Gohman <gohman@apple.com> |
When ScalarEvolution is told to forget the trip count for a loop, have
it also forget any SCEVs associated with loop-header PHIs in the loop,
as they may be dependent on trip count information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70633 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9032b78c987d08b9e1dd25b6ab94b305e717832e |
|
01-May-2009 |
Dan Gohman <gohman@apple.com> |
When printing a SCEVUnknown with pointer type, don't print an
artificial "ptrtoint", as it tends to clutter up complicated
expressions. The cast operators now print both source and
destination types, which is usually sufficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70554 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 99243b38300a4cccb3ba23698be5faa5e12ee965 |
|
01-May-2009 |
Dan Gohman <gohman@apple.com> |
Fix an 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70550 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 10b9479f555b27521062d1303ed43e11b69f7873 |
|
01-May-2009 |
Dan Gohman <gohman@apple.com> |
When creating cast scevs, canonicalize the destination type. This
avoids duplicate scevs that differ only in type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70549 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e3d12854b810c3116a0cd9480f5aeb008ab06101 |
|
01-May-2009 |
Torok Edwin <edwintorok@gmail.com> |
hasSCEV() was declared in ScalarEvolution.h, but never defined. This must have
gone lost during the pImpl conversion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70536 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3d739fe3756bf67be23c2ca54ec7b04bef89bfe0 |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Add some comments, and tidy up some whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70510 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a1af757e0af9c2fb5ade4b06408e1adfa0425c6c |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Extend ScalarEvolution's getBackedgeTakenCount to be able to
compute an upper-bound value for the trip count, in addition to
the actual trip count. Use this to allow getZeroExtendExpr and
getSignExtendExpr to fold casts in more cases.
This may eventually morph into a more general value-range
analysis capability; there are certainly plenty of places where
more complete value-range information would allow more folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70509 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4acd12a0cbe6d1e478e13feefbc67c654e552e68 |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Don't try to mix integers and pointers in an icmp instruction
in getSCEVAtScope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70495 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d9c1c85c2acb6fb2003c6053ea1114e7aee68774 |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Fix ScalarEvolution::print to print a value for any Instruction with
a SCEVable type, not just integer types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70463 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eb3948be16c37396fb3c50ef2c51f7f2da9c34d9 |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Implement getSCEVAtScope for SCEV cast expressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70422 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ac70ceafbcb6761f32634f981de4cca1a5faa417 |
|
30-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Generalize the cast-of-addrec folding to handle folding of SCEVs like
(sext i8 {-128,+,1} to i64) to i64 {-128,+,1}, where the iteration
crosses from negative to positive, but is still safe if the trip
count is within range.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70421 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 36b8e53fe069862627cd06d82767a4253e24638d |
|
29-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Include the source type in SCEV cast expression debug output, and
print sext, zext, and trunc, instead of signextend, zeroextend,
and truncate, respectively, for consistency with the main IR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70405 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c9cf35055f7b0fd5814836686b4a550dc69bd11c |
|
29-Apr-2009 |
Dale Johannesen <dalej@apple.com> |
Fix recent regression in gcc.dg/pr26719.c (6835035).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70386 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f0aa4850ceb61695500437c26e609c4ec394157a |
|
29-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Update comments to reflect the current code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70357 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 01ecca20bf0f35d1fb464f098ac4bacbfeb06735 |
|
27-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Teach getZeroExtendExpr and getSignExtendExpr to use trip-count
information to simplify [sz]ext({a,+,b}) to {zext(a),+,[zs]ext(b)},
as appropriate.
These functions and the trip count code each call into the other, so
this requires careful handling to avoid infinite recursion. During
the initial trip count computation, conservative SCEVs are used,
which are subsequently discarded once the trip count is actually
known.
Among other benefits, this change lets LSR automatically eliminate
some unnecessary zext-inreg and sext-inreg operation where the
operand is an induction variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70241 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d6c329532bed7a60f760b3a009b3582c624bc270 |
|
27-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Handle ands with ~0 correctly too. This fixes PR4052.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70176 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2c73d5fb9e3d68c96bb2242bbbf2930a8db10343 |
|
25-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Handle ands with 0 and shifts by 0 correctly. These aren't
common, but indvars shouldn't crash on them. This fixes PR4054.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70051 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5cd28fad15b3bab840dac5ecdc2bdfde4f74816a |
|
23-Apr-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Simplify trunc(extend(x)) in SCEVs, just for completeness. Also fix some odd
whitespace in the same file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69870 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 20900cae35c0d18eed449a985d452a74c98ecdb2 |
|
22-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Simplify trivial cast-of-cast SCEVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69809 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f8a8be86e3972608741c1e1ecb89ec3c6f570552 |
|
22-Apr-2009 |
Dan Gohman <gohman@apple.com> |
De-pImpl-ify ScalarEvolution. The pImpl pattern doesn't provide much
practical benefit in the case of ScalarEvolution, and it's otherwise
a nuisance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69749 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 578ccf81e5b94965e3ce8b4eadb6834e39f5f41d |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
When turning (ashr(shl(x, n), n)) into sext(trunc(x)), the width of the
type to truncate to should be the number of bits of the value that are
preserved, not the number that are clobbered with sign-extension.
This fixes regressions in ldecod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69704 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4ee29af754f3b81ce90a5aa8f540b1f4a790191c |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution how to recognize zext-inreg and sext-inreg,
as they appear in LLVM IR. This isn't particularly interesting
on its own; this is just setting up some infrastructure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69655 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 59d0704c8f38c279670c5d555a44e5b33696ca89 |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
This FIXME is fixed, now that SCEV understands pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69651 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 84923602fdc2a81957e5dee178d5737ad8e72f55 |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Factor out a common base class from SCEVTruncateExpr, SCEVZeroExtendExpr,
and SCEVSignExtendExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69649 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a682430653a7726bba36f60a36ef4117cfc89438 |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Usage getAnalysisToUpdate for TargetData, per PR760.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69645 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| af79fb5f47b0088c6a8973a7fdbaea96973a429d |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Introduce encapsulation for ScalarEvolution's TargetData object, and refactor
the code to minimize dependencies on TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69644 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fb17fd2cdf35f8ad0b9e0e7e1b06a186fce442f8 |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Move some assertion checks so they can do more complete checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69643 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b7ef72963b2215ca23c27fa8ea777bada06994d0 |
|
21-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Convert ScalarEvolution to use raw_ostream instead of OStream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f4ccfcb70402b34ee55e0b5820cf287b95a8762f |
|
18-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Add a ScalarEvolution::getCouldNotCompute() function, and use it
instead of allocating and leaking new SCEVCouldNotCompute objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69452 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8170a6849ed370059676f94d8a00ae652873a394 |
|
16-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Fix a bug with inttoptr/ptrtoint casts where the pointer has a different
size from the integer, requiring zero extension or truncation. Don't
create ZExtInsts with pointer types. This fixes a regression in
consumer-jpeg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69307 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2d1be87ee40a4a0241d94448173879d9df2bc5b3 |
|
16-Apr-2009 |
Dan Gohman <gohman@apple.com> |
Expand GEPs in ScalarEvolution expressions. SCEV expressions can now
have pointer types, though in contrast to C pointer types, SCEV
addition is never implicitly scaled. This not only eliminates the
need for special code like IndVars' EliminatePointerRecurrence
and LSR's own GEP expansion code, it also does a better job because
it lets the normal optimizations handle pointer expressions just
like integer expressions.
Also, since LLVM IR GEPs can't directly index into multi-dimensional
VLAs, moving the GEP analysis out of client code and into the SCEV
framework makes it easier for clients to handle multi-dimensional
VLAs the same way as other arrays.
Some existing regression tests show improved optimization.
test/CodeGen/ARM/2007-03-13-InstrSched.ll in particular improved to
the point where if-conversion started kicking in; I turned it off
for this test to preserve the intent of the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69258 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 46bdfb0e6bb9de86b19562fc52fddefd7014cf73 |
|
24-Feb-2009 |
Dan Gohman <gohman@apple.com> |
Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65382 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f5a309e989b8d2199cb542793e9edf48395d9fed |
|
18-Feb-2009 |
Dan Gohman <gohman@apple.com> |
Use a sign-extend instead of a zero-extend when promoting a
trip count value when the original loop iteration condition is
signed and the canonical induction variable won't undergo signed
overflow. This isn't required for correctness; it just preserves
more information about original loop iteration values.
Add a getTruncateOrSignExtend method to ScalarEvolution,
following getTruncateOrZeroExtend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64918 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 60f8a63e2502d57e879bf52a4a48505b74fa9716 |
|
17-Feb-2009 |
Dan Gohman <gohman@apple.com> |
Add a method to ScalarEvolution for telling it when a loop has been
modified in a way that may effect the trip count calculation. Change
IndVars to use this method when it rewrites pointer or floating-point
induction variables instead of using a doInitialization method to
sneak these changes in before ScalarEvolution has a chance to see
the loop. This eliminates the need for LoopPass to depend on
ScalarEvolution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64810 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5a6c1a840ad343c0ed2fa54a0edb50b61f828f0f |
|
17-Feb-2009 |
Evan Cheng <evan.cheng@apple.com> |
Strengthen the "non-constant stride must dominate loop preheader" check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64703 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c2390b14c91764cba6e4394d05e58e387a7dfb19 |
|
12-Feb-2009 |
Dan Gohman <gohman@apple.com> |
Teach IndVarSimplify to optimize code using the C "int" type for
loop induction on LP64 targets. When the induction variable is
used in addressing, IndVars now is usually able to inserst a
64-bit induction variable and eliminates the sign-extending cast.
This is also useful for code using C "short" types for
induction variables on targets with 32-bit addressing.
Inserting a wider induction variable is easy; the tricky part is
determining when trunc(sext(i)) expressions are no-ops. This
requires range analysis of the loop trip count. A common case is
when the original loop iteration starts at 0 and exits when the
induction variable is signed-less-than a fixed value; this case
is now handled.
This replaces IndVarSimplify's OptimizeCanonicalIVType. It was
doing the same optimization, but it was limited to loops with
constant trip counts, because it was running after the loop
rewrite, and the information about the original induction
variable is lost by that point.
Rename ScalarEvolution's executesAtLeastOnce to
isLoopGuardedByCond, generalize it to be able to test for
ICMP_NE conditions, and move it to be a public function so that
IndVars can use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64407 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 237d873439ed170e0d9608920d45d11d05bb5e5f |
|
25-Jan-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Start generating arbitrary precision integer SCEVs. This removes the temporary
code that rounded up and capped the size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62958 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d1f5fabd15c340273dc118dab95e97a3e76c4f87 |
|
16-Jan-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Reinstate r60509 from Dale:
Make the debugging dump be a full line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62325 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 789558db70d9513a017c11c5be30945839fdff1c |
|
13-Jan-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Wind SCEV back in time, to Nov 18th. This 'fixes' PR3275, PR3294, PR3295,
PR3296 and PR3302.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62160 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 87f333641a24975e4c4ef01ec0f0b89dfd184c51 |
|
03-Jan-2009 |
Nick Lewycky <nicholas@mxc.ca> |
We know it's always a SCEVConstant if it gets here, so just cast it and
inline the only use of isNegative. Fixes warning reported by Mike Stump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61600 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ae285bf5a631e7dd24cce087eca78353ff231a9c |
|
02-Jan-2009 |
Nick Lewycky <nicholas@mxc.ca> |
Don't try to analyze this "backward" case. This is overly conservative
pending a correct solution.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61589 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1447f5ca1f59fdbe885df36c74e868267297a59d |
|
16-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Generalize support for analyzing loops to include SLE/SGE loop exit conditions
and support for non-unit strides with signed exit conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61082 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8bdc6920cdd1fd51e5af1537462c30c06203fe85 |
|
12-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Revert my re-instated reverted commit, fixes the bootstrap build on x86-64 linux.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60951 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 277a147f87b671b8545952367fd7aaafc1614e5d |
|
11-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Sneaky, sneaky: move the -1 to the outside of the SMax. Reinstate the
optimization of SGE/SLE with unit stride, now that it works properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60881 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a9d50c00f1a9976cf183290e72d58bc4b607edd2 |
|
09-Dec-2008 |
Evan Cheng <evan.cheng@apple.com> |
Back out 60748 for now. It's breaking SPASS, 254.gap, and 464.h264ref.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0bed364307fa5c009239e65352ed36cb451953a7 |
|
09-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
It's easy to handle SLE/SGE when the loop has a unit stride.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60748 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4a3136444e7a79a9d0e8c9c67940fa4dcd8f73fe |
|
06-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Minor cleanup. Use dyn_cast, not isa/cast pairs. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60623 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1bdd93a3dcd16de259011c5b4326512a77e5337d |
|
03-Dec-2008 |
Dale Johannesen <dalej@apple.com> |
Make the debugging dump be a full line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60509 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 48dd644109d97a76288f0b5045f6aa6a3c075732 |
|
02-Dec-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Add a new SCEV representing signed division.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60407 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dd643f26c43d162e905a07bf0826680aa10f7161 |
|
18-Nov-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Add a utility function that detects whether a loop is guaranteed to be finite.
Use it to safely handle less-than-or-equals-to exit conditions in loops. These
also occur when the loop exit branch is exit on true because SCEV inverses the
icmp predicate.
Use it again to handle non-zero strides, but only with an unsigned comparison
in the exit condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59528 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 130fea2ca0ea21286fbdfd22a977b723e4242f3a |
|
18-Nov-2008 |
Duncan Sands <baldrick@free.fr> |
Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59515 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d72a81ee647b4474e2d1307335e520b871666507 |
|
16-Nov-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Don't brute-force analyze cubic or higher polynomials.
If this patch causes a performance regression for anyone, please let me know,
and it can be fixed in a different way with much more effort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59384 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 89d0a4dd8446bba2a233d76043d9151fd40a27d0 |
|
11-Nov-2008 |
Devang Patel <dpatel@apple.com> |
Silence unused variable warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59064 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8f4d5eb9e543d22df61a98c4115ed81887213333 |
|
03-Nov-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Don't crash analyzing certain quadratics (addrec of {X,+,Y,+,1}).
We're still waiting on code that actually analyzes them properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58592 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cb8f1b5b8b9f1131f3d53015345c395905fe62db |
|
13-Oct-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Disallow the construction of SCEVs with could-not-compute operands. Catch CNCs
returned by BinomialCoefficient and don't try to operate with them. This
replaces the previous fix for PR2857.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57431 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 26e4b216c0c065dece616c1c9931252e2a0e40c6 |
|
04-Oct-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Allow the construction of SCEVs with SCEVCouldNotCompute operands, by
implementing folding. Fixes PR2857.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57049 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 70ff4cf1baf8cce04b38752ea485425782fb07b8 |
|
16-Sep-2008 |
Dan Gohman <gohman@apple.com> |
Finally re-apply r46959. This is made feasible by the combination
of r56230, r56232, and r56246.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56247 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 81b28ceab6bd0ed6a784b7dc952ddb0b03fc6de7 |
|
16-Sep-2008 |
Dan Gohman <gohman@apple.com> |
Improve instcombine's handling of integer min and max in two ways:
- Recognize expressions like "x > -1 ? x : 0" as min/max and turn them
into expressions like "x < 0 ? 0 : x", which is easily recognizable
as a min/max operation.
- Refrain from folding expression like "y/2 < 1" to "y < 2" when the
comparison is being used as part of a min or max idiom, like
"y/2 < 1 ? 1 : y/2". In that case, the division has another use, so
folding doesn't eliminate it, and obfuscates the min/max, making it
harder to recognize as a min/max operation.
These benefit ScalarEvolution, CodeGen, and anything else that wants to
recognize integer min and max.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56246 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fd6edef87b66c1c9bdef1ac562e13e59b9cd851a |
|
16-Sep-2008 |
Dan Gohman <gohman@apple.com> |
Teach ScalarEvolution to consider loop preheaders in the search for
an if statement that guards a loop, to allow indvars to avoid smax
operations in more situations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56232 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8dae138d06df9cecbee421ef645d0b74f9ac13d7 |
|
14-Sep-2008 |
Dan Gohman <gohman@apple.com> |
Fix WriteAsOperand to not emit a leading space character. Adjust
its callers to emit a space character before calling it when a
space is needed.
This fixes several spurious whitespace issues in
ScalarEvolution's debug dumps. See the test changes for
examples.
This also fixes odd space-after-tab indentation in the output
for switch statements, and changes calls from being printed like
this:
call void @foo( i32 %x )
to this:
call void @foo(i32 %x)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56196 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3837218ea0ed343da0f4d9c0fa0b290e00c52619 |
|
12-Aug-2008 |
Dan Gohman <gohman@apple.com> |
Extend ScalarEvolution's executesAtLeastOnce logic to be able to
continue past the first conditional branch when looking for a
relevant test. This helps it avoid using MAX expressions in
loop trip counts in more cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54697 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d9cc749318cc9ab4f36efe8a44201a72adbda2b2 |
|
08-Aug-2008 |
Dan Gohman <gohman@apple.com> |
Canonicalize nested AddRecs in by nesting them in order of loop depth.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54545 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b42a6261225e5a1b9a75b9aa11732944046d7999 |
|
05-Aug-2008 |
Eli Friedman <eli.friedman@gmail.com> |
PR2621: Improvements to the SCEV AddRec binomial expansion. This
version uses a new algorithm for evaluating the binomial coefficients
which is significantly more efficient for AddRecs of more than 2 terms
(see the comments in the code for details on how the algorithm works).
It also fixes some bugs: it removes the arbitrary length restriction for
AddRecs, it fixes the silent generation of incorrect code for AddRecs
which require a wide calculation width, and it fixes an issue where we
were incorrectly truncating the iteration count too far when evaluating
an AddRec expression narrower than the induction variable.
There are still a few related issues I know of: I think there's
still an issue with the SCEVExpander expansion of AddRec in terms of
the width of the induction variable used. The hack to avoid generating
too-wide integers shouldn't be necessary; instead, the callers should be
considering the cost of the expansion before expanding it (in addition
to not expanding too-wide integers, we might not want to expand
expressions that are really expensive, especially when optimizing for
size; calculating an length-17 32-bit AddRec currently generates about 250
instructions of straight-line code on X86). Also, for long 32-bit
AddRecs on X86, CodeGen really sucks at scheduling the code. I'm planning on
filing follow-up PRs for these issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54332 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1fbffe0cef92ee284f44cfef3ce0db7ec7d86f18 |
|
30-Jul-2008 |
Eli Friedman <eli.friedman@gmail.com> |
Another SCEV issue from PR2607; essentially the same issue, but this
time applying to the implicit comparison in smin expressions. The
correct way to transform an inequality into the opposite
inequality, either signed or unsigned, is with a not expression.
I looked through the SCEV code, and I don't think there are any more
occurrences of this issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54194 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 068acc3caa113db0925766d327bf9cae6a9eb885 |
|
30-Jul-2008 |
Eli Friedman <eli.friedman@gmail.com> |
Fix for PR2607: SCEV miscomputing the loop count for loops with an
SGT exit condition. Essentially, the correct way to flip an inequality
in 2's complement is the not operator, not the negation operator.
That said, the difference only affects cases involving INT_MIN.
Also, enhance the pre-test search logic to be a bit smarter about
inequalities flipped with a not operator, so it can eliminate the smax
from the iteration count for simple loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54184 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9e13cbc171f4c5c3f74b097243eff7cb0b3b942b |
|
21-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Revert r53812 -- premature. LegalizeTypes isn't actually on yet!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53816 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2ceb40f3da2290d37e9a4faa35bd5199e5dc90d5 |
|
21-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Switch on the use of arbitrary precision integers in scalar evolution. This will
bail after 256-bits to avoid producing code that the backends can't handle.
Previously, we capped it at 64-bits, preferring to miscompile in those cases.
This change also reverts much of r52248 because the invariants the code was
expecting are now being met.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53812 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8b82c49084e83a1df47ac1f1e21f2a072d2e4781 |
|
20-Jul-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
This header isn't necessary now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53811 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| de0f2382e4aa99c921216574ce97f09c3d145d0f |
|
20-Jul-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
Fix PR2088. Use modulo linear equation solver to compute loop iteration
count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53810 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8ae38e15161696cae57aa1ec725ec4391d1e4c77 |
|
15-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Correct this inversion!
I swear that didn't show up in svn diff...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53587 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 86dae65baa8b4362bc309bd0105a788c567729d8 |
|
15-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Fix up comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53586 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 59cff12f8880797518c8c37f068fe75cfdc54536 |
|
12-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Stop creating extraneous smax/umax in SCEV. This removes a regression where we
started complicating many loops ('for' loops, in fact).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53508 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b0b046848faad8e87d02c82d03b5b7b1ba74e041 |
|
09-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a
more complete version is now available from the LoopVR pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53269 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 01eaf803cafe218b9323caa0e785b340e5d34eea |
|
07-Jul-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Handle 'lshr' instruction with SCEVUDiv object.
Comment the xor %x, -1 case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53167 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6c459a28ecb8d33e4b59ab2db1f9a58a2d06824b |
|
22-Jun-2008 |
Dan Gohman <gohman@apple.com> |
Generalize createSCEV to be able to form SCEV expressions from
ConstantExprs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52615 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cfeb6a450632f2a6cd05302633c8c2b8c90cfdfd |
|
18-Jun-2008 |
Dan Gohman <gohman@apple.com> |
Move LSR's private isZero function to a public SCEV member
function, and make use of it in several places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52463 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6f8abf929ac173872cc50aff767bc25f2a07a523 |
|
13-Jun-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Crash less. The i64 restriction in BinomialCoefficient caused some problems
with code that was expecting different bit widths for different values.
Make getTruncateOrZeroExtend a method on ScalarEvolution, and use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52248 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 04b35e8532d82b6777a667e09db153e9fb73e071 |
|
26-May-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Don't treat values as signed when looking at loop steppings in HowForToNonZero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51560 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 844731a7f1909f55935e3514c9e713a62d67662e |
|
13-May-2008 |
Dan Gohman <gohman@apple.com> |
Clean up the use of static and anonymous namespaces. This turned up
several things that were neither in an anonymous namespace nor static
but not intended to be global.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51017 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 08de613d2dec7a5c3aa55d2a46fddb07dccf3051 |
|
06-May-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Fix typo and indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50706 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a0c8fc6f28808a6b859d45c7e2d3391e3e8d2963 |
|
20-Apr-2008 |
Dale Johannesen <dalej@apple.com> |
(re)fix handling of UGT. Pointed out by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49991 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 02a260aa11a2e1b2c14335274d3c42ca3f3eabc0 |
|
20-Apr-2008 |
Chris Lattner <sabre@nondot.org> |
Switch to using Simplified ConstantFP::get API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49977 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cf363181c1b98c0982010cf5714e31b7277bdd2a |
|
18-Apr-2008 |
Dale Johannesen <dalej@apple.com> |
Fix a scalar evolution bug. Reversing everything
does not work because of 0; 2>0 but -2U is also >0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49928 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f7b37b2d0e28cd2f2ecc03e3e6e470353dca5725 |
|
14-Apr-2008 |
Dan Gohman <gohman@apple.com> |
In the special case, call the comparison function instead of
manually performing the comparison. This allows the special
case to work correctly even in the case where someone is
experimenting with a different comparison function :-).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49670 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4f4c28f75f74fe557efb63feaf5f4f8bf639dcd5 |
|
20-Mar-2008 |
Devang Patel <dpatel@apple.com> |
Restore isCFGOnly property of various analysis passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48579 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c758209153ca0f6da6737f25ada269c573fba456 |
|
19-Mar-2008 |
Devang Patel <dpatel@apple.com> |
PassInfo keep tracks whether a pass is an analysis pass or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48554 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b9a905781ee8ee49660c6733530d42dece94d12a |
|
25-Feb-2008 |
Evan Cheng <evan.cheng@apple.com> |
Temporarily reverting 46959.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47542 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 39442afb36cfe39315accc36eb2e8355689f0882 |
|
21-Feb-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Simplify this code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3b71165b32dd631e2a3e5d27fa10c5d6c08d19e2 |
|
21-Feb-2008 |
Nick Lewycky <nicholas@mxc.ca> |
GlobalValues are Constants, remove redundant code. Also fix typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47433 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ae9f3a3b7c915f725aef5a7250e88eaeddda03c6 |
|
20-Feb-2008 |
Anton Korobeynikov <asl@math.spbu.ru> |
Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 178f20a685bb456444eb1989b91326690c42e421 |
|
20-Feb-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Use getConstant for ConstantInts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47361 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3e6307698084e7adfc10b739442ae29742beefd0 |
|
20-Feb-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Add 'umax' similar to 'smax' SCEV. Closes PR2003.
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).
Parse 'xor %x, -1' as (-1 - %x).
Remove dead code (ConstantInt::get always returns a ConstantInt).
Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a65ee03bb28fc9016cad3f725bd141428eb4d8a0 |
|
13-Feb-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
Fix typo. Thanks to Duncan for noticing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47062 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3a4cbe2a41f2c4233df2f061d7bcd45d7b46e1a1 |
|
13-Feb-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
Add comments as per review feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47061 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7b5b76835a608155a94f6b08ea9c6091cb070815 |
|
12-Feb-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
Fix PR2002. Suppose n is the initial value for the induction
variable (with step 1) and m is its final value. Then, the correct trip
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may
overflow and can't in general be interpreted as signed.
Patch by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47007 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a089b104218c46803a1af374f6c441df885e54c2 |
|
11-Feb-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
If the LHS of the comparison is a loop-invariant we also want to move it
to the RHS. This simple change allows to compute loop iteration count
for loops with condition similar to the one in the testcase (which seems
to be quite common).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46959 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e3320a1bcce3f6653e109cc86ee1011b0a61d808 |
|
11-Feb-2008 |
Wojciech Matyjewicz <wmatyjewicz@fastmail.fm> |
Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an
arbitrary iteration.
The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the
computations (essentially, the division) in BinomialCoefficient() are
performed with the apprioprate bitwidth necessary to avoid overflow;
unsigned division is used instead of the signed one.
Computations in BinomialCoefficient() require support from the code
generator for APInts. Currently, we use a hack rounding up the
neccessary bitwidth to the nearest power of 2. The hack is easy to turn
off in future.
One remaining issue: we assume the divisor of the binomial coefficient
formula can be computed accurately using 16 bits. It means we can handle
AddRecs of length up to 9. In future, we should use APInts to evaluate
the divisor.
Thanks to Nicholas for cooperation!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fa9b80eb64127b3d9691e18537975635520e51e9 |
|
31-Jan-2008 |
Dan Gohman <gohman@apple.com> |
Avoid unnecessarily casting away const, fixing a FIXME.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46591 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| aeb5e5cdb7f8544c679642068492f74a14eca60e |
|
02-Jan-2008 |
Nick Lewycky <nicholas@mxc.ca> |
Don't be rude, emit debugging info where asked to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45485 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4ee451de366474b9c228b4e5fa573795a715216d |
|
29-Dec-2007 |
Chris Lattner <sabre@nondot.org> |
Remove attribution from file headers, per discussion on llvmdev.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45418 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f286f6fd93d569befe6e77c94a947e6e04e95685 |
|
10-Dec-2007 |
Chris Lattner <sabre@nondot.org> |
Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp.
Reimplement the xform in Analysis/ConstantFolding.cpp where we can use
targetdata to validate that it is safe. While I'm in there, fix some const
correctness issues and generalize the interface to the "operand folder".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44817 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c54c561c9f7270c055dd7ba75a3a003b771a42d9 |
|
25-Nov-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Add new SCEV, SCEVSMax. This allows LLVM to analyze do-while loops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44319 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8314a0cd0ff3a1bb86bf8ab7ec6e35b232c6cb37 |
|
23-Nov-2007 |
Chris Lattner <sabre@nondot.org> |
simplify some code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44295 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 42b5e08e7123aefbc6e93b547f44e3ed7604526f |
|
23-Nov-2007 |
Chris Lattner <sabre@nondot.org> |
Fix a bug where we'd try to find a scev value for a bitcast operand,
even though the bitcast operand did not have integer type. This fixes
PR1814.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44286 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 83bb0055fdac3c6234c4178cd429e6a917d06c4e |
|
22-Nov-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Instead of calculating constant factors, calculate the number of trailing
bits. Patch from Wojciech Matyjewicz.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44268 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6e801dc6c0a7b04e154f5fbb3a2b04cc355d194d |
|
20-Nov-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Small cleanup. Use APInt::getHighBitsSet method instead of shift left.
"setcc" -> "icmp op" in comments. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44249 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cf96db2c1dc21a74a13faa74b8bb2f9a937fc6c9 |
|
20-Nov-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Be more careful when transforming | to +. Patch from Wojciech Matyjewicz.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44248 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4e1a0e386c6861a697b0cd2e13a33ac4dd60e17d |
|
15-Nov-2007 |
Anton Korobeynikov <asl@math.spbu.ru> |
Reverted r44163 per request
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44177 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 65e2da3b4d6925bf30693595a524a3a43acc1f17 |
|
15-Nov-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Fix handling of overflow in loop calculation by adding new UDiv SCEV. This SCEV
is disabled in the sense that it will refuse to create one from a UDiv
instruction, until the code is better tested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44163 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 246b2564d3bbbafe06ebf6a67745cd24141b5cb4 |
|
22-Oct-2007 |
Dan Gohman <gohman@apple.com> |
Move the SCEV object factors from being static members of the individual
SCEV subclasses to being non-static member functions of the ScalarEvolution
class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43224 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9a2f93121b31bf6345d1552bdc43037f89714d86 |
|
27-Sep-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Build the correct range for loops with unusual bounds. Fix from Jay Foad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42394 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 43421b3dd70af5b70e71816521f37502c397cc65 |
|
06-Sep-2007 |
Dale Johannesen <dalej@apple.com> |
Next round of APFloat changes.
Use APFloat in UpgradeParser and AsmParser.
Change all references to ConstantFP to use the
APFloat interface rather than double. Remove
the ConstantFP double interfaces.
Use APFloat functions for constant folding arithmetic
and comparisons.
(There are still way too many places APFloat is
just a wrapper around host float/double, but we're
getting there.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b7211a2ce13a0365e0e1dd2f27adda2ee3d1288b |
|
21-Aug-2007 |
Devang Patel <dpatel@apple.com> |
Use SmallVector instead of std::vector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41207 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d6dac0eebc2c9c2d9107db9b2e1bdfd231bac535 |
|
06-Aug-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Let scalar-evolution analyze loops with an unsigned comparison for the exit
condition. Fixes 1597.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40867 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 06323bfe034797be1f835459845f83a28400f707 |
|
06-Aug-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Don't assume it's safe to transform a loop just because it's dominated by any
comparison. Fixes bug 1598.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40866 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| eefdebe002ede066bf80859e72aec831cfd1d92d |
|
16-Jul-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Handle decrementing loops properly. Fixes PR1533.
Always pass the constant as the second parameter to HowManyLessThans.
Remove obsolete "isSigned" parameter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39893 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9a6ae965d69b131d692de8fc69545b6c7aaea0b2 |
|
09-Jul-2007 |
Dan Gohman <gohman@apple.com> |
Move the APInt form of SCEVUnknown::getIntegerSCEV to SCEVConstant::get, and
use SCEVConstant::get instead of SCEVUnknown::get when constructing a SCEV
for a ConstantInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38457 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5cec4db6ae13a41d04d86f37e347fc5b5997c948 |
|
19-Jun-2007 |
Dan Gohman <gohman@apple.com> |
Rename ScalarEvolution::deleteInstructionFromRecords to
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37657 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f50cd749e1504cea64a432757d49831ab0e23c70 |
|
18-Jun-2007 |
Dan Gohman <gohman@apple.com> |
In SCEVAddExpr::get, skip over any cast operands before looking for nested
add operands after constant operands. The recent change to recognize
sign-extend expressions caused this to be exposed more often.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37628 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d19534add90a2a894af61523b830887097bb780b |
|
15-Jun-2007 |
Dan Gohman <gohman@apple.com> |
Add a SCEV class and supporting code for sign-extend expressions.
This created an ambiguity for expandInTy to decide when to use
sign-extension or zero-extension, but it turns out that most of its callers
don't actually need a type conversion, now that LLVM types don't have
explicit signedness. Drop expandInTy in favor of plain expand, and change
the few places that actually need a type conversion to do it themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37591 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 51e844b60168d019a293daddf19bd291c706dc3f |
|
06-Jun-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Optimize this test. Firstly, only Instructions may use other Instructions.
Secondly, checking whether removal succeeded tells you whether it was in
the map to begin with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37469 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9d0332f7b4d8aa8e07544506eb26d1e155c3745a |
|
06-Jun-2007 |
Nick Lewycky <nicholas@mxc.ca> |
Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37459 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1997473cf72957d0e70322e2fe6fe2ab141c58a6 |
|
03-May-2007 |
Devang Patel <dpatel@apple.com> |
Drop 'const'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3e15bf33e024b9df9e89351a165acfdb1dde51ed |
|
02-May-2007 |
Devang Patel <dpatel@apple.com> |
Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c718288f4939258a51ec5ae0c5be7b1a05eb6898 |
|
02-May-2007 |
Lauro Ramos Venancio <lauro.venancio@gmail.com> |
Fix build error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36648 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 794fd75c67a2cdc128d67342c6d88a504d186896 |
|
01-May-2007 |
Devang Patel <dpatel@apple.com> |
Do not use typeinfo to identify pass in pass manager.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3e35c8d15e6981ab759820e84ffcb945bfcef71b |
|
16-Apr-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Revert last patch. It was already fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36102 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b4a7fea7fde104a8c81fffb1cf7b8227af8fc845 |
|
16-Apr-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1336:
Fix a div-by-zero bug noticed by APInt. This fixes:
test/Transforms/IndVarsSimplify/exit_value_tests.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36099 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fe560b8c8529bd2380452a9713eb591c545c4301 |
|
15-Apr-2007 |
Chris Lattner <sabre@nondot.org> |
Fix a nasty bug introduced when apint'ified. This fixes
Transforms/IndVarsSimplify/exit_value_tests.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36081 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 414de4df41bba7f9e2b06723ae2ddae51dac3e0f |
|
07-Apr-2007 |
Zhou Sheng <zhousheng00@gmail.com> |
Eliminate unnecessary APInt construction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35740 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| fdc1e16dcf358cd5e0ff1cf36735630854a268e4 |
|
07-Apr-2007 |
Zhou Sheng <zhousheng00@gmail.com> |
Make APInt variables do the computation stuffs instead of
ConstantExpr::getXX if possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35738 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8342836d70e94361a88d431a68a6da0ae0a9e219 |
|
07-Apr-2007 |
Zhou Sheng <zhousheng00@gmail.com> |
Eliminate unnecessary zext/trunc stuffs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35737 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2811f2a67069be9a1fab05c1fe152098bd8b5028 |
|
02-Apr-2007 |
Chris Lattner <sabre@nondot.org> |
Treat xor of signbit like an add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35586 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0797605204a0726a2f3f726ae4431445b5d40ca9 |
|
04-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Guard further against APInt operations with operands of unequal bit width.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34897 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9b4aeb3cc13d875ccfce1b81f21aaf93d6471e47 |
|
02-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Fix an unequal bitwidth issue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34831 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| cae5754619433aed7be74abbf1c0551a82d369cb |
|
02-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Prefer non-virtual calls to ConstantInt::isZero over virtual calls to
Constant::isNullValue() in situations where it is possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34821 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 35fa43907e2ea751ad35bfbaab8c4d3511422c14 |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Make it possible to create an SCEVUnknown from an APInt as well as an int.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34816 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c7cd7a0bb1debf6e71c71e63c595059a306177dd |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Construct ConstantInt with simpler constructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34795 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e479ef0b411f2cd9134bd1f6e8b9f12e05089d40 |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Fix last night's 445.gobmk breakage which was caused by comparison of
APInt's of unequal bitwidth.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34790 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a6e8a955d6ab82911a1909fac7a9f4256a4d090e |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Remove the "isSigned" parameters from ConstantRange. It turns out they
are not needed as the results are the same with or without it.
Patch by Nicholas Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34782 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e8019bb1fc46069109dadd5b1c48e86a912bf990 |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
APIntify various computations in ScalarEvolution
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34780 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6263cbada2c24811b7b7f8705c5e2b8c5a13461e |
|
01-Mar-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1205:
Make GetConstantFactor compute its result using an APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34765 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c6aedf70b3a7d0478b8882bf79b985a48d78d37e |
|
28-Feb-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1205:
Adjust to changes in ConstantRange interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34762 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 581b0d453a63f7f657248f80317976995262be11 |
|
28-Feb-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1205:
Remove ConstantInt from ConstantRange interface and adjust its users to
compensate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34758 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| dc5c1597014fa5c47c94db2b9fd424d2266053db |
|
28-Feb-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1205:
First round of ConstantRange changes. This makes all CR constructors use
only APInt and not use ConstantInt. Clients are adjusted accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34756 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 832254e1c2387c0cbeb0a820b8315fbe85cb003a |
|
02-Feb-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2e3a1d137cf1e426ec44621329e02d6e283d0bb8 |
|
31-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
The local "ConstantFold" method is now just a watered down version of
ConstantFoldInstOperands. Switch to ConstantFoldInstOperands and remove
ConstantFold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33683 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 72d88ae5447a3929c97e88f4c806213847b5d988 |
|
31-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
adjust to constant folding api changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33673 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c10305743c313558405079452138f03124e87581 |
|
19-Jan-2007 |
Reid Spencer <rspencer@reidspencer.com> |
For PR1043:
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*
This also fixes PR1120.
Patch by Sheng Zhou.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33370 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1b30754ba9ced4d87bf2b3699ec4908b57f474ed |
|
15-Jan-2007 |
Jeff Cohen <jeffc@jolt-lang.org> |
Unbreak VC++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33242 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 42a75517250017a52afb03a0ade03cbd49559fe5 |
|
15-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.
This makes naming much more consistent. For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33225 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b2f3e703bcde5833ff5910922f7a5313cc6b1c64 |
|
15-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
Update code to eliminate calls to isInteger, calling isIntegral instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33220 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 192e4037445f4141cd44c0080e3eeb2718d41466 |
|
14-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
Fix PR1101 and Analysis/ScalarEvolution/trip-count.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33193 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ef3baf0979091b873f593c1e214974e488c93b9b |
|
12-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
don't discriminate against bool
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33128 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 579dca12c2cfd60bc18aaadbd5331897d48fec29 |
|
12-Jan-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Implement review feedback for the ConstantBool->ConstantInt merge. Chris
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33110 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4fe16d607d11e29d742208894909733f5ad01f8f |
|
11-Jan-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33076 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6b6b6ef1677fa71b1072c2911b4c1f9524a558c9 |
|
11-Jan-2007 |
Zhou Sheng <zhousheng00@gmail.com> |
For PR1043:
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e7ca042730a233591cece04f177209923e6fb478 |
|
08-Jan-2007 |
Reid Spencer <rspencer@reidspencer.com> |
Convert uses of getPrimitiveSize that should be getPrimitiveSizeInBits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33003 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8b0e3602e2b54162e892bddac90b4ab2e13ee0de |
|
07-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
Fix PR1015 and Transforms/IndVarsSimplify/2007-01-06-TripCount.ll, a
miscompilation of Qt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32974 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f82188c9ced9938fe805511d960cf11a829c7b58 |
|
07-Jan-2007 |
Chris Lattner <sabre@nondot.org> |
cast of int to bool no longer does a compare, rendering this fixme
obsolete
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32972 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c5b206b6be61d0d933b98b6af5e22f42edd48ad1 |
|
31-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int -> Int32
4. [U]Long -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
and other methods related to signedness. In a few places this warranted
identifying the signedness information from other sources.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32785 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e4d87aa2de6e52952dca73716386db09aad5a8fd |
|
23-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d3773507188d550a3ce5be09662235cf23679811 |
|
21-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Add a FIXME about signedness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32732 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2e20d39493aa58dfe7b1f9e8890215f0dedc038f |
|
21-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Add some comments about things that can go away once signless types are in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32727 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3b27d68c6af2582df0962557f1fe5c3f70f46e3f |
|
19-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
eliminate static ctors from Statistics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32697 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 75de5ab9f58b84aa99c2a9133572ce1d997ec1a8 |
|
19-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
Fix a bug in GetConstantFactor for affine expressions, in which the existing
code was wrong for things like 3+4*i.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32662 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d977d8651a5cd26a3e1088267f31cade405f2adf |
|
13-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Replace inferred getCast(V,Ty) calls with more strict variants.
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b6ba3e6d85c99d959b243a1d0331b9b6d3fb7a44 |
|
12-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Get even more accurate on the casting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32478 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4da49122f3f3c8da68a52723d846b88c72166a68 |
|
12-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Change inferred getCast into specific getCast. Passes all tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32469 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a17f03980f88f23be3298d4128b9c02ebb360f31 |
|
12-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
teach scev to analyze X*4|1 like X*4+c. This allows us to produce:
LBB1_1: #bb
movdqa (%esi), %xmm2
movaps %xmm2, %xmm3
punpcklbw %xmm0, %xmm3
movaps %xmm3, %xmm4
punpcklwd %xmm0, %xmm4
cvtdq2ps %xmm4, %xmm4
mulps %xmm1, %xmm4
movaps %xmm4, (%edi)
leal 1(,%eax,4), %ebx
shll $4, %ebx
punpckhwd %xmm0, %xmm3
cvtdq2ps %xmm3, %xmm3
mulps %xmm1, %xmm3
movaps %xmm3, (%edx,%ebx)
leal 2(,%eax,4), %ebx
shll $4, %ebx
punpckhbw %xmm0, %xmm2
movaps %xmm2, %xmm3
punpcklwd %xmm0, %xmm3
cvtdq2ps %xmm3, %xmm3
mulps %xmm1, %xmm3
movaps %xmm3, (%edx,%ebx)
leal 3(,%eax,4), %ebx
shll $4, %ebx
punpckhwd %xmm0, %xmm2
cvtdq2ps %xmm2, %xmm2
mulps %xmm1, %xmm2
movaps %xmm2, (%edx,%ebx)
addl $64, %edi
incl %eax
addl $16, %esi
cmpl %ecx, %eax
jne LBB1_1 #bb
instead of:
LBB1_1: #bb
movdqa (%esi), %xmm2
movaps %xmm2, %xmm3
punpcklbw %xmm0, %xmm3
movaps %xmm3, %xmm4
punpcklwd %xmm0, %xmm4
cvtdq2ps %xmm4, %xmm4
mulps %xmm1, %xmm4
movaps %xmm4, (%edi)
leal 1(,%eax,4), %ebx
shll $4, %ebx
punpckhwd %xmm0, %xmm3
cvtdq2ps %xmm3, %xmm3
mulps %xmm1, %xmm3
movaps %xmm3, (%edx,%ebx)
leal 2(,%eax,4), %ebx
shll $4, %ebx
punpckhbw %xmm0, %xmm2
movaps %xmm2, %xmm3
punpcklwd %xmm0, %xmm3
cvtdq2ps %xmm3, %xmm3
mulps %xmm1, %xmm3
movaps %xmm3, (%edx,%ebx)
leal 3(,%eax,4), %ebx
shll $4, %ebx
punpckhwd %xmm0, %xmm2
cvtdq2ps %xmm2, %xmm2
mulps %xmm1, %xmm2
movaps %xmm2, (%edx,%ebx)
addl $64, %edi
incl %eax
addl $16, %esi
cmpl %ecx, %eax
jne LBB1_1 #bb
for a testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32463 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 82e8a8ffe4cab2df8f8f1da9825e7814210bb568 |
|
11-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
clarify some comments, simplify some checks, fix:
Regression/Transforms/IndVarsSimplify/2006-12-10-BitCast.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32420 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e81561909d128c6e2d8033cb5465a49b2596b26a |
|
07-Dec-2006 |
Bill Wendling <isanbard@gmail.com> |
Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ac0b6ae358944ae8b2b5a11dc08f52c3ed89f2da |
|
06-Dec-2006 |
Chris Lattner <sabre@nondot.org> |
Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 315d05542cbe0e5fe769122324328b268ce4497c |
|
05-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Finally get the casting right in this file. Also, remove some unnecessary
casting because sdiv doesn't require operand signs to match any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32240 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7858b336f23405a96ee25de1b9071aeaf270bd77 |
|
05-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Bail on the getInferredCast idea. Remove the function and convert
remaining uses to more specific casts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32231 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 09906f3e1a1dc40be1f4a1381d0aaafed6657a8e |
|
04-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Fix comment grammaro
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32198 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 14bab5db2d2a7b597ae7272e9c809d68ed3343b6 |
|
04-Dec-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Fix inferred casts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32180 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 97af751deb9b26fd42fbcee082da9ccc4ded5b45 |
|
02-Dec-2006 |
Jeff Cohen <jeffc@jolt-lang.org> |
Unbreak VC++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6f81b510217bd87f265cca054c5d9885250d8525 |
|
28-Nov-2006 |
Bill Wendling <isanbard@gmail.com> |
Removed some of the iostream #includes. Moved towards converting to using
llvm streams
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31983 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3da59db637a887474c1b1346c1f3ccf53b6c4663 |
|
27-Nov-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d6c3422e3126927840683574a658a0deada903f0 |
|
08-Nov-2006 |
Jim Laskey <jlaskey@mac.com> |
Remove redundant <cmath>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31561 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0a783f783ca05c961234385f5b269d4cf03dbbdb |
|
02-Nov-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
Replace the REM instruction with UREM, SREM and FREM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 48d8a70d22eb166a917946d7ed69061e91e9cd12 |
|
01-Nov-2006 |
Reid Spencer <rspencer@reidspencer.com> |
Make ScalarEvolution actually use a ZeroExtend expression instead of
having SCZeroExtendExpr be equivalent to SCTruncate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31355 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1628cec4d7fce310d9cde0bcc73997e5a71692c4 |
|
26-Oct-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b83eb6447ba155342598f0fabe1f08f5baa9164a |
|
20-Oct-2006 |
Reid Spencer <rspencer@reidspencer.com> |
For PR950:
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b336409673c614843cc19b8f61db6afb9d8c5ac3 |
|
04-Oct-2006 |
Chris Lattner <sabre@nondot.org> |
Fix some more static dtor issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30724 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 003cbf35f4d9feebf0f1508c85b69b87645727cd |
|
29-Sep-2006 |
Chris Lattner <sabre@nondot.org> |
Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30666 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5d8925c7c506a54ebdfb0bc93437ec9f602eaaa0 |
|
28-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29921 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a4f0b3a084d120cfc5b5bb06f64b222f5cb72740 |
|
27-Aug-2006 |
Chris Lattner <sabre@nondot.org> |
s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 9525528a7dc5462b6374d38c81ba5c07b11741fe |
|
29-Jun-2006 |
Chris Lattner <sabre@nondot.org> |
Use hidden visibility to make symbols in an anonymous namespace get
dropped. This shrinks libllvmgcc.dylib another 67K
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28975 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 97156e7984887461a7d4b3d60fe9eaef856b5140 |
|
26-Apr-2006 |
Chris Lattner <sabre@nondot.org> |
Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't
recognize some simple affine IV's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27982 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 1f239300d341c0d5d94516f8d0c41cdd31fae54b |
|
04-Apr-2006 |
Chris Lattner <sabre@nondot.org> |
Signed shr by a constant is not the same as sdiv by 2^k
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27395 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 60a05cc118763c680834a61280f48530482a1f86 |
|
01-Apr-2006 |
Chris Lattner <sabre@nondot.org> |
Fix Transforms/IndVarsSimplify/2006-03-31-NegativeStride.ll and
PR726 by performing consistent signed division, not consistent unsigned
division when evaluating scev's. Do not touch udivs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27326 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7238210e1fe2f5a950087f78465e0f7af22ccd69 |
|
23-Jan-2006 |
Chris Lattner <sabre@nondot.org> |
Add explicit iostream #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25513 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a11564335749cd259d8a1391be34c1abbe302c42 |
|
27-Oct-2005 |
John Criswell <criswell@uiuc.edu> |
Move some constant folding code shared by Analysis and Transform passes
into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24036 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bed21de39b2f085a38bee2285d1600efba8150bd |
|
29-Sep-2005 |
Chris Lattner <sabre@nondot.org> |
wrap a long line
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23507 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ff2006aa7421eaf2ce0b6282783c30ed87a2115e |
|
16-Aug-2005 |
Chris Lattner <sabre@nondot.org> |
Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22797 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| db25de496c1bd9047acc9f6ab825a92a7b5dd497 |
|
16-Aug-2005 |
Chris Lattner <sabre@nondot.org> |
Teach LLVM to know how many times a loop executes when constructed with
a < expression, e.g.: for (i = m; i < n; ++i)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22793 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 05bd374b1f22b74baf1dc087c8c2d128c1e299aa |
|
10-Aug-2005 |
Chris Lattner <sabre@nondot.org> |
Fix an obvious oops
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22742 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| a0740fbcc735eb87d7fe5111d302e4b8245120b6 |
|
10-Aug-2005 |
Chris Lattner <sabre@nondot.org> |
implement two helper methods
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22736 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2b37d7cf28b1382420b5e4007042feeb66d21ac8 |
|
21-Apr-2005 |
Misha Brukman <brukman+llvm@gmail.com> |
Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21416 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6128690c629380291b7185f09cd82ed5244c8a41 |
|
06-Apr-2005 |
Chris Lattner <sabre@nondot.org> |
Don't make this require loopsimplify. It works BETTER with loop simplify
but should not require it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21123 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bac5b463965e0e07c7114c5466f35ede0d410e10 |
|
09-Mar-2005 |
Chris Lattner <sabre@nondot.org> |
Export two methods for getting -X and A-B.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20527 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7192e501eb85fae5d3502e919a76e51eef99ed70 |
|
27-Feb-2005 |
Chris Lattner <sabre@nondot.org> |
DCE a dead function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20339 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7ffc07dcf7a0afc5e70e799f26de75750a8008d5 |
|
26-Feb-2005 |
Chris Lattner <sabre@nondot.org> |
1 + 100 + 51 == 152, not 52.
If we fold three constants together (c1+c2+c3), make sure to keep
LHSC updated, instead of reusing (in this case), the 1 instead of the
partial sum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20337 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2352fec2054c89c9720f014936e9f7a685894ccb |
|
17-Feb-2005 |
Chris Lattner <sabre@nondot.org> |
Scary typo that fixes Regression/Transforms/IndVarsSimplify/2005-02-17-TruncateExprCrash.ll
and PR515.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20224 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4dc534c7fe93743f28c093dde9332cdb9d8edfa3 |
|
13-Feb-2005 |
Chris Lattner <sabre@nondot.org> |
Correct the recursive PHI node handling routines in a way that CANNOT induce
infinite loops (using the new replaceSymbolicValuesWithConcrete method).
This patch reverts this patch:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050131/023830.html
... which was an attempted fix for this problem. Unfortunately, that patch
caused test/Regression/Transforms/IndVarsSimplify/exit_value_tests.llx to fail
and slightly castrated the entire analysis. This patch fixes it right.
This patch is dedicated to jeffc, for making me deal with this. :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20146 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| caa7c19fb4ca60e21dc8fa9b10c736a05a9f9c22 |
|
01-Feb-2005 |
Chris Lattner <sabre@nondot.org> |
Fix a problem where we could infinitely recurse on phi nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19955 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ce9653ce449f1409815547e1bf60abcd1332d2c9 |
|
07-Dec-2004 |
Reid Spencer <rspencer@reidspencer.com> |
For PR387:\
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18589 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6a1a78a478fc1b0f6a1b236cb5cd0cb95e0f42d4 |
|
04-Dec-2004 |
Chris Lattner <sabre@nondot.org> |
This patch prevents an infinite recursion while compiling 103.su2cor.
All SPEC CFP 95 programs now work, though the JIT isn't loading -lf2c right
so they aren't testing correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18499 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 219c1418153d9b85035957b0e15af75e42f65854 |
|
25-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
Patch to support MSVC, contributed by Morten Ofstad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17214 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 673e02b0c37e7a7fa6ffc67bc5e4813a3ce2806d |
|
12-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
This nutty patch has been in my tree since before 1.3 went out, and it needs
to go in. This patch allows us to compute the trip count of loops controlled
by values loaded from constant arrays. The cannonnical example of this is
strlen when passed a constant argument:
for (int i = 0; "constantstring"[i]; ++i) ;
return i;
In this case, it will compute that the loop executes 14 times, which means
that the exit value of i is 14. Because of this, the loop gets DCE'd and
we are happy. This also applies to anything that does similar things, e.g.
loops like this:
const float Array[] = { 0.1, 2.1, 3.2, 23.21 };
for (int i = 0; Array[i] < 20; ++i)
and is actually fairly general.
The problem with this is that it almost never triggers. The reason is that
we run indvars and the loop optimizer only at compile time, which is before
things like strlen and strcpy have been inlined into the program from libc.
Because of this, it almost never is used (it triggers twice in specint2k).
I'm committing it because it DOES work, may be useful in the future, and
doesn't slow us down at all. If/when we start running the loop optimizer
at link-time (-O4?) this will be very nice indeed :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16926 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 4a2b23e189cacb3c7afbfe3c38690768a01390ef |
|
11-Oct-2004 |
Chris Lattner <sabre@nondot.org> |
Fix SingleSource/Benchmarks/McGill/chomp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16912 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 20aa474f8fbebde588edc101b90e834df28ce4ce |
|
03-Sep-2004 |
Alkis Evlogimenos <alkis@evlogimenos.com> |
Fixes to make LLVM compile with vc7.1.
Patch contributed by Paolo Invernizzi!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16152 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 551ccae044b0ff658fe629dd67edd5ffe75d10e8 |
|
02-Sep-2004 |
Reid Spencer <rspencer@reidspencer.com> |
Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16137 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e840434755e2165ac20ec55e9d5ff3d2defac2d2 |
|
18-Jul-2004 |
Reid Spencer <rspencer@reidspencer.com> |
bug 122:
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14942 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 5aa20212cc8dd1008d05915bf23dd02143fc5de9 |
|
24-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Remove distasteful method which is really part of the indvars pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14359 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 541ad5e19e3e91b843efa5406319c95be0b7287c |
|
20-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
REALLY fix PR378: crash in scalar evolution analysis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14275 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 2d58452f39662d87f441d8c760f3b6f8f9635e0c |
|
20-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Fix a bug in my change last night that caused a few test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14270 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 8d741b8befcd631384085612d873857157b44577 |
|
20-Jun-2004 |
Chris Lattner <sabre@nondot.org> |
Do not sort SCEV objects by address: instead sort by complexity and group
by address. This prevents the resultant SCEV objects from depending on
where in memory other scev objects happen to live.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14263 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 6ffe551f657c948d6a473a198ecbd1188bf9ce45 |
|
27-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Changes to fix up the inst_iterator to pass to boost iterator checks. This
patch was graciously contributed by Vladimir Prus.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13185 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| b06432c2761ecb84f4149544b56362ac00ef68be |
|
23-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Eliminate all of the SCEV Expansion code which is really part of the
IndVars pass, not part of SCEV *analysis*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13134 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 45a1cf87d4e473981d9761240a07d3ca383f845a |
|
19-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
It's not just a printer, it's actually an analysis too
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13064 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| f1ab4b4eac5603d19c20f4a508f93a118a52bdd5 |
|
19-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Change the ExitBlocks list from being explicitly contained in the Loop
structure to being dynamically computed on demand. This makes updating
loop information MUCH easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13045 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 3221ad0db784a8c8d6ce3029e2632216764b5533 |
|
18-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Add the ability to compute exit values for complex loop using unanalyzable
operations. This allows us to compile this testcase:
int main() {
int h = 1;
do h = 3 * h + 1; while (h <= 256);
printf("%d\n", h);
return 0;
}
into this:
int %main() {
entry:
call void %__main( )
%tmp.6 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %.str_1, long 0, long 0), int 364 ) ; <int> [#uses=0]
ret int 0
}
This testcase was taken directly from 256.bzip2, believe it or not.
This code is not as general as I would like. Next up is to refactor it
a bit to handle more cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13019 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 7980fb9007b7e13446053daa6a5110aeeb7016dd |
|
17-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Add the ability to compute trip counts that are only controlled by constants
even if the loop is using expressions that we can't compute as a closed-form.
This allows us to calculate that this function always returns 55:
int test() {
double X;
int Count = 0;
for (X = 100; X > 1; X = sqrt(X), ++Count)
/*empty*/;
return Count;
}
And allows us to compute trip counts for loops like:
int h = 1;
do h = 3 * h + 1; while (h <= 256);
(which occurs in bzip2), and for this function, which occurs after inlining
and other optimizations:
int popcount()
{
int x = 666;
int result = 0;
while (x != 0) {
result = result + (x & 0x1);
x = x >> 1;
}
return result;
}
We still cannot compute the exit values of result or h in the two loops above,
which means we cannot delete the loop, but we are getting closer. Being able to
compute a constant trip count for these two loops will allow us to unroll them
completely though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13017 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| c598517c24c2ee87acafd67643b9a19bda8514af |
|
16-Apr-2004 |
Brian Gaeke <gaeke@uiuc.edu> |
Include <cmath> for compatibility with gcc 3.0.x (the system compiler on
Debian.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12986 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0a7f98c80d5addb504a6f04ebab19f12b89cc448 |
|
15-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Factor a bunch of classes out into a public header
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12958 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 0aa84fdd043a7c790be512e10f4e38b43627da81 |
|
15-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Unbreak the build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12956 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e9fc96e7cc437d5f697e9205556099e875c4fc4e |
|
15-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Implement a FIXME: if we're going to insert a cast, we might as well only
insert it once!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12955 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 16011e6201a11ec16968c27a6f62ebf32537969f |
|
14-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
This is a trivial tweak to the addrec insertion code: insert the increment
at the bottom of the loop instead of the top. This reduces the number of
overlapping live ranges a lot, for example, eliminating a spill in an important
loop in 183.equake with linear scan.
I still need to make the exit comparison of the loop use the post-incremented
version of this variable, but this is an easy first step.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12952 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 627018b4b3ff566eb6eba487c93e76d9ae1f46ea |
|
07-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Fix a bug Brian found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12754 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ea9e005ce617d48d061a30c04956380952ec1a6d |
|
05-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Sparc don't got not "sqrtl", bum bum bum
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12670 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| bb2aff1e18d6f5abb934ab2d3ea1cfb89729239c |
|
05-Apr-2004 |
Misha Brukman <brukman+llvm@gmail.com> |
Kill warnings during an optimized compile where assert() disappears.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12669 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| ddd947f21a8ef355412a83dc34ce452afe7c3597 |
|
05-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Fix PR312 and IndVarsSimplify/2004-04-05-InvokeCastCrash.llx
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12668 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| e34c0b48a07ea4f03f81cd46986486c8fe065e7e |
|
03-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Add a break in the default case
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12639 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| d18d9dcd2866ef91ee42daf68e32b638e7825211 |
|
02-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Comment out debugging printouts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12623 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|
| 53e677abadadf71ef33f2f69533a32c1fa3d168f |
|
02-Apr-2004 |
Chris Lattner <sabre@nondot.org> |
Add a new analysis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12619 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Analysis/ScalarEvolution.cpp
|