| a6ff92a975f2d6ef6a0db7aeaee3ee9fd046307a |
|
09-May-2013 |
Benjamin Kramer <benny.kra@googlemail.com> |
InstCombine: Don't just copy known bits from the first operand of an srem.
That's obviously wrong. Conservatively restrict it to the sign bit, which
matches the original intention of this analysis. Fixes PR15940.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181518 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 0b8c9a80f20772c3793201ab5b251d3520b9cea3 |
|
02-Jan-2013 |
Chandler Carruth <chandlerc@gmail.com> |
Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.
There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.
The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.
I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).
I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 8a8413d75cb1b6dbbb77a775052568548382cbb4 |
|
22-Dec-2012 |
Craig Topper <craig.topper@gmail.com> |
Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170990 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 5f70c2e934c8cf7814fc047f4824ac89b35dd72d |
|
12-Dec-2012 |
Shuxin Yang <shuxin.llvm@gmail.com> |
- Fix a problematic way in creating all-the-1 APInt.
- Propagate "exact" bit of [l|a]shr instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169942 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a09e18fcfab0e998526724357f8fc5ef7f4c3e7a |
|
04-Dec-2012 |
Shuxin Yang <shuxin.llvm@gmail.com> |
For rdar://12329730, last piece.
This change attempts to simplify (X^Y) -> X or Y in the user's context if we know that
only bits from X or Y are demanded.
A minimized case is provided bellow. This change will simplify "t>>16" into "var1 >>16".
=============================================================
unsigned foo (unsigned val1, unsigned val2) {
unsigned t = val1 ^ 1234;
return (t >> 16) | t; // NOTE: t is used more than once.
}
=============================================================
Note that if the "t" were used only once, the expression would be finally optimized as well.
However, with with this change, the optimization will take place earlier.
Reviewed by Nadav, Thanks a lot!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169317 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| bba3eb054a4e0e052cdeff22e678c52c4e59f07e |
|
04-Dec-2012 |
Shuxin Yang <shuxin.llvm@gmail.com> |
rdar://12329730 (2nd part, revised)
The type of shirt-right (logical or arithemetic) should remain unchanged
when transforming "X << C1 >> C2" into "X << (C1-C2)"
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169209 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| c811976b0400257511f2a255ec70538c3614f85e |
|
04-Dec-2012 |
Shuxin Yang <shuxin.llvm@gmail.com> |
rdar://12329730 (2nd part)
This change tries to simmplify E1 = " X >> C1 << C2" into :
- E2 = "X << (C2 - C1)" if C2 > C1, or
- E2 = "X >> (C1 - C2)" if C1 > C2, or
- E2 = X if C1 == C2.
Reviewed by Nadav. Thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169182 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 3574eca1b02600bac4e625297f4ecf745f4c4f32 |
|
08-Oct-2012 |
Micah Villmow <villmow@gmail.com> |
Move TargetData to DataLayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165402 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 94c22716d60ff5edf6a98a3c67e0faa001be1142 |
|
27-Sep-2012 |
Sylvestre Ledru <sylvestre@debian.org> |
Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 7e2c793a2b5c746344652b6579e958ee42fafdcc |
|
27-Sep-2012 |
Sylvestre Ledru <sylvestre@debian.org> |
Fix a typo 'iff' => 'if'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 7971de4178d3be9b31ac03c20e2b50c3e7f4641c |
|
27-Jul-2012 |
Pete Cooper <peter_cooper@apple.com> |
Simplify demanded bits of select sources where the condition is a constant vector
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160835 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 1121c786fc24a4a8ce6c778cb9b5acdfa9006ffb |
|
27-Jul-2012 |
Pete Cooper <peter_cooper@apple.com> |
Teach SimplifyDemandedBits how to look through fpext and fptrunc to simplify their operand
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160823 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a9e13ba3c8230073dd1157e4a17ef52906ac6cb8 |
|
17-Jul-2012 |
Evan Cheng <evan.cheng@apple.com> |
Back out r160101 and instead implement a dag combine to recover from instcombine transformation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160387 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 79590b8edffd403d93c764887a4f0ad4f2612914 |
|
12-Jul-2012 |
Evan Cheng <evan.cheng@apple.com> |
Instcombine was transforming:
%shr = lshr i64 %key, 3
%0 = load i64* %val, align 8
%sub = add i64 %0, -1
%and = and i64 %sub, %shr
ret i64 %and
to:
%shr = lshr i64 %key, 3
%0 = load i64* %val, align 8
%sub = add i64 %0, 2305843009213693951
%and = and i64 %sub, %shr
ret i64 %and
The demanded bit optimization is actually a pessimization because add -1 would
be codegen'ed as a sub 1. Teach the demanded constant shrinking optimization
to check for negated constant to make sure it is actually reducing the width
of the constant.
rdar://11793464
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160101 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a78fa8cc2dd6d2ffe5e4fe605f38aae7b3d2fb7a |
|
27-Jan-2012 |
Chris Lattner <sabre@nondot.org> |
continue making the world safe for ConstantDataVector. At this point,
we should (theoretically optimize and codegen ConstantDataVector as well
as ConstantVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149116 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a1f00f4d488eb5daff52faaf99c62ee652fd3b85 |
|
25-Jan-2012 |
Chris Lattner <sabre@nondot.org> |
use Constant::getAggregateElement to simplify a bunch of code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148934 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 4ca829e89567f002fc74eb0e3e532a7c7662e031 |
|
25-Jan-2012 |
Chris Lattner <sabre@nondot.org> |
use ConstantVector::getSplat in a few places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148929 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| bec2d03c4d774e67ebc586b3a00792d996f26140 |
|
24-Jan-2012 |
Chris Lattner <sabre@nondot.org> |
basic instcombine support for CDS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148806 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 148fd55ef3b47e224539eac7342c936bbf138ed5 |
|
04-Jan-2012 |
Nick Lewycky <nicholas@mxc.ca> |
Teach instcombine all sorts of great stuff about shifts that have exact, nuw or
nsw bits on them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147528 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 1fdfae05b0a4356d1ed0633bf3d6cdc6eba2e173 |
|
24-Dec-2011 |
Benjamin Kramer <benny.kra@googlemail.com> |
InstCombine: Canonicalize (2^n)-1 - x into (2^n)-1 ^ x iff x is known to be smaller than 2^n.
This has the obvious advantage of being commutable and is always a win on x86 because
const - x wastes a register there. On less weird architectures this may lead to
a regression because other arithmetic doesn't fuse with it anymore. I'll address that
problem in a followup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147254 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a9390a4d5f5d568059a80970d22194b165d097a7 |
|
27-Sep-2011 |
Benjamin Kramer <benny.kra@googlemail.com> |
Stop emitting instructions with the name "tmp" they eat up memory and have to be uniqued, without any benefit.
If someone prefers %tmp42 to %42, run instnamer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140634 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| c82751dd6761e3db62668b6b1cfddd4f659855b6 |
|
15-Sep-2011 |
Eli Friedman <eli.friedman@gmail.com> |
Make demanded-elt simplification for shufflevector slightly stronger. Spotted by inspection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139768 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 62660310d9e5f9ecf329fd3cacb67c344a12ddbc |
|
27-May-2011 |
Chad Rosier <mcrosier@apple.com> |
Renamed llvm.x86.sse42.crc32 intrinsics; crc64 doesn't exist.
crc32.[8|16|32] have been renamed to .crc32.32.[8|16|32] and
crc64.[8|16|32] have been renamed to .crc32.64.[8|64].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132163 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 2e6496026f41d2c05ff038d14df9972f8a27fb94 |
|
20-May-2011 |
Evan Cheng <evan.cheng@apple.com> |
Revert r131664 and fix it in instcombine instead. rdar://9467055
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131708 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 6fd5a6000bb6d23d6e41f6a8b8d07ad3cca3ea76 |
|
19-May-2011 |
Eli Friedman <eli.friedman@gmail.com> |
Make the demanded bits/elements optimizations preserve debug line information.
I'm not sure this is quite ideal, but I can't really think of any better way to do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131616 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| ca1ef485854d668f794bf389154aa371aa2ed535 |
|
18-May-2011 |
Stuart Hastings <stuart@apple.com> |
X86 pmovsx/pmovzx ignore the upper half of their inputs.
rdar://problem/6945110
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131493 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| c6b018b7379f4e1bcc4166a07b17d08180ed776d |
|
09-Mar-2011 |
Eli Friedman <eli.friedman@gmail.com> |
PR9346: Prevent SimplifyDemandedBits from incorrectly introducing
INT_MIN % -1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127306 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| c14bc77315ac4867f16c1585181b41919339eb3c |
|
07-Mar-2011 |
Nick Lewycky <nicholas@mxc.ca> |
Add more analysis of the sign bit of an srem instruction. If the LHS is negative
then the result could go either way. If it's provably positive then so is the
srem. Fixes PR9343 #7!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127146 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| a81556fb52e39e3f6cde0c11c1acd2bdf8a560a2 |
|
10-Feb-2011 |
Chris Lattner <sabre@nondot.org> |
teach SimplifyDemandedBits that exact shifts demand the bits they
are shifting out since they do require them to be zeros. Similarly
for NUW/NSW bits of shl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125263 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 30d2577f644a947d51bb81cf1b6e863d8147cccf |
|
28-Jun-2010 |
Gabor Greif <ggreif@gmail.com> |
use ArgOperand API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107016 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 3e84e2e90f560aa75e08957e1509b9e6d9d502bb |
|
24-Jun-2010 |
Gabor Greif <ggreif@gmail.com> |
use ArgOperand API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106737 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 551754c4958086cc6910da7c950f2875e212f5cf |
|
17-Apr-2010 |
Eric Christopher <echristo@apple.com> |
Revert 101465, it broke internal OpenGL testing.
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101579 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 4ec2258ffb495d7ce00177e447740ef1123a27db |
|
16-Apr-2010 |
Gabor Greif <ggreif@gmail.com> |
reapply r101434
with a fix for self-hosting
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101465 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 607a7ab3da72a2eb53553a520507cbb8068dd1d8 |
|
16-Apr-2010 |
Gabor Greif <ggreif@gmail.com> |
back out r101423 and r101397, they break llvm-gcc self-host on darwin10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 2ff961f66816daab8bbc58a19025161d969821c2 |
|
15-Apr-2010 |
Gabor Greif <ggreif@gmail.com> |
reapply r101364, which has been backed out in r101368
with a fix
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 9ee17208115482441953127615231c59a2f4d052 |
|
15-Apr-2010 |
Gabor Greif <ggreif@gmail.com> |
back out r101364, as it trips the linux nightlybot on some clang C++ tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101368 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 165dac08d1bb8428b32a5f39cdd3dbee2888987f |
|
15-Apr-2010 |
Gabor Greif <ggreif@gmail.com> |
rotate CallInst operands, i.e. move callee to the back
of the operand array
the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.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/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
|
| 8609fda0f7e4446de85f882755601ffcbd540324 |
|
09-Feb-2010 |
Chris Lattner <sabre@nondot.org> |
fix some problems handling large vectors reported in PR6230
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95616 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
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| ac512171ff12829c5961ca2614dfaf4b37bf8c2e |
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29-Jan-2010 |
Duncan Sands <baldrick@free.fr> |
Having RHSKnownZero and RHSKnownOne be alternative names for KnownZero and KnownOne
(via APInt &RHSKnownZero = KnownZero, etc) seems dangerous and confusing to me: it
is easy not to notice this, and then wonder why KnownZero/RHSKnownZero changed
underneath you when you modified RHSKnownZero/KnownZero etc. So get rid of this.
No intended functionality change (tested with "make check" + llvm-gcc bootstrap).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94802 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
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| 2c47368a7d843486a59e12a08595297003e3cb2d |
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28-Jan-2010 |
Duncan Sands <baldrick@free.fr> |
Fix PR6165. The bug was that LHSKnownZero was being and'd with DemandedMask
when it should have been and'd with LowBits. Fix that and while there beef
up the logic in the case of a negative LHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94745 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
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| e0b4b721aa82796c6ee5cf501ecd85f4974732ee |
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04-Jan-2010 |
Chris Lattner <sabre@nondot.org> |
move the 'SimplifyDemandedFoo' methods out to their own file, cutting 1K lines out of instcombine.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92465 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
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