c69cbd0a7431b047dbc4a9758e81bf122926ba0a |
|
25-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Make the peephole optimizer clear kill flags on a vreg if it's about to add new uses of the vreg, since the old kills may no longer be valid. This was causing -verify-machineinstrs to complain about uses after kills, and could potentially have been causing subtle register allocation issues, but I haven't come across a test case yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151425 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
3b26eb62946a64409f81c8089a362eb582114342 |
|
25-Feb-2012 |
Lang Hames <lhames@gmail.com> |
Fixed typo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@151417 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
1dd8c8560d45d36a8e507cd014352f1d313f9f9e |
|
08-Feb-2012 |
Andrew Trick <atrick@apple.com> |
Codegen pass definition cleanup. No functionality. Moving toward a uniform style of pass definition to allow easier target configuration. Globally declare Pass ID. Globally declare pass initializer. Use INITIALIZE_PASS consistently. Add a call to the initializer from CodeGen.cpp. Remove redundant "createPass" functions and "getPassName" methods. While cleaning up declarations, cleaned up comments (sorry for large diff). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150100 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
1df91b0e54bc62f8fc7a06a4f75220e40aa2dfe0 |
|
08-Feb-2012 |
Andrew Trick <atrick@apple.com> |
whitespace git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150094 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd |
|
07-Dec-2011 |
Evan Cheng <evan.cheng@apple.com> |
Add bundle aware API for querying instruction properties and switch the code generator to it. For non-bundle instructions, these behave exactly the same as the MC layer API. For properties like mayLoad / mayStore, look into the bundle and if any of the bundled instructions has the property it would return true. For properties like isPredicable, only return true if *all* of the bundled instructions have the property. For properties like canFoldAsLoad, isCompare, conservatively return false for bundles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
dec1b10161a3bc1b49ab8d35e1bd6488486dfd4a |
|
13-Oct-2011 |
Nick Lewycky <nicholas@mxc.ca> |
If MI is deleted then remove it from the set. If a new MI is created, it could have the same address as the one we deleted, and we don't want that in the set yet. Noticed by inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141849 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
7becbc41ab2875153868c21a84153eca442cc28f |
|
26-Jul-2011 |
Duncan Sands <baldrick@free.fr> |
SrcDef is only written and never read. Remove it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136080 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
e837dead3c8dc3445ef6a0e2322179c57e264a13 |
|
28-Jun-2011 |
Evan Cheng <evan.cheng@apple.com> |
- Rename TargetInstrDesc, TargetOperandInfo to MCInstrDesc and MCOperandInfo and sink them into MC layer. - Added MCInstrInfo, which captures the tablegen generated static data. Chang TargetInstrInfo so it's based off MCInstrInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134021 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
d158fba3e45547f013bbab4c0ac640f31b5e341f |
|
15-Mar-2011 |
Evan Cheng <evan.cheng@apple.com> |
Add a peephole optimization to optimize pairs of bitcasts. e.g. v2 = bitcast v1 ... v3 = bitcast v2 ... = v3 => v2 = bitcast v1 ... = v1 if v1 and v3 are of in the same register class. bitcast between i32 and fp (and others) are often not nops since they are in different register classes. These bitcast instructions are often left because they are in different basic blocks and cannot be eliminated by dag combine. rdar://9104514 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127668 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
326d976eb2b03d1f2b7537d7b90dff264fd84378 |
|
15-Feb-2011 |
Evan Cheng <evan.cheng@apple.com> |
Fix thinko. Cmp can be the first instruction in a MBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125552 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
cf75ab597514effb6f8e915f05d74f45debb89ec |
|
14-Feb-2011 |
Evan Cheng <evan.cheng@apple.com> |
Fix PR8854. Track inserted copies to avoid read before write. Sorry, it's hard to reduce a sensible small test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125523 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
c9df025e33ac435adb3b3318d237c36ca7cec659 |
|
10-Jan-2011 |
Jakob Stoklund Olesen <stoklund@2pi.dk> |
Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic. These functions not longer assert when passed 0, but simply return false instead. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
c36b7069b42bece963b7e6adf020353ce990ef76 |
|
08-Jan-2011 |
Evan Cheng <evan.cheng@apple.com> |
Do not model all INLINEASM instructions as having unmodelled side effects. Instead encode llvm IR level property "HasSideEffects" in an operand (shared with IsAlignStack). Added MachineInstrs::hasUnmodeledSideEffects() to check the operand when the instruction is an INLINEASM. This allows memory instructions to be moved around INLINEASM instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123044 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
30a343aeedf777f9b8b6be9823da750afbf765b1 |
|
07-Jan-2011 |
Evan Cheng <evan.cheng@apple.com> |
DBG_VALUE does not have any side effects; it also makes no sense to mark it cheap as a copy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123031 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
c4af4638dfdab0dc3b6257276cfad2ee45053060 |
|
17-Nov-2010 |
Evan Cheng <evan.cheng@apple.com> |
Remove ARM isel hacks that fold large immediates into a pair of add, sub, and, and xor. The 32-bit move immediates can be hoisted out of loops by machine LICM but the isel hacks were preventing them. Instead, let peephole optimization pass recognize registers that are defined by immediates and the ARM target hook will fold the immediates in. Other changes include 1) do not fold and / xor into cmp to isel TST / TEQ instructions if there are multiple uses. This happens when the 'and' is live out, machine sink would have sinked the computation and that ends up pessimizing code. The peephole pass would recognize situations where the 'and' can be toggled to define CPSR and eliminate the comparison anyway. 2) Move peephole pass to after machine LICM, sink, and CSE to avoid blocking important optimizations. rdar://8663787, rdar://8241368 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119548 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
eb96a2f6c03c0ec97c56a3493ac38024afacc774 |
|
15-Nov-2010 |
Evan Cheng <evan.cheng@apple.com> |
Code clean up. The peephole pass should be the one updating the instruction iterator, not TII->OptimizeCompareInstr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119186 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
40a5eb18b031fa1a5e9697e21e251e613d441cc5 |
|
01-Nov-2010 |
Bill Wendling <isanbard@gmail.com> |
When we look at instructions to convert to setting the 's' flag, we need to look at more than those which define CPSR. You can have this situation: (1) subs ... (2) sub r6, r5, r4 (3) movge ... (4) cmp r6, 0 (5) movge ... We cannot convert (2) to "subs" because (3) is using the CPSR set by (1). There's an analogous situation here: (1) sub r1, r2, r3 (2) sub r4, r5, r6 (3) cmp r4, ... (5) movge ... (6) cmp r1, ... (7) movge ... We cannot convert (1) to "subs" because of the intervening use of CPSR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117950 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
9e7cb3d2434e252cc0b81d88169d3d8989fcd78f |
|
01-Nov-2010 |
Bill Wendling <isanbard@gmail.com> |
The testcase is now XFAILed. Sorry about the breakage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117904 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
b698a56dd4739fb1a407b2b286bf2aa7bdf86fde |
|
31-Oct-2010 |
Eric Christopher <echristo@apple.com> |
Revert r117876 for now, it's causing more testsuite failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117879 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
b3747706fc0ccece33516b257f6601508c3a2a45 |
|
31-Oct-2010 |
Bill Wendling <isanbard@gmail.com> |
Disable the peephole optimizer until 186.crafty on armv6 is fixed. This is what looks like is happening: Without the peephole optimizer: (1) sub r6, r6, #32 orr r12, r12, lr, lsl r9 orr r2, r2, r3, lsl r10 (x) cmp r6, #0 ldr r9, LCPI2_10 ldr r10, LCPI2_11 (2) sub r8, r8, #32 (a) movge r12, lr, lsr r6 (y) cmp r8, #0 LPC2_10: ldr lr, [pc, r10] (b) movge r2, r3, lsr r8 With the peephole optimizer: ldr r9, LCPI2_10 ldr r10, LCPI2_11 (1*) subs r6, r6, #32 (2*) subs r8, r8, #32 (a*) movge r12, lr, lsr r6 (b*) movge r2, r3, lsr r8 (1) is used by (x) for the conditional move at (a). (2) is used by (y) for the conditional move at (b). After the peephole optimizer, these the flags resulting from (1*) are ignored and only the flags from (2*) are considered for both conditional moves. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117876 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.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/CodeGen/PeepholeOptimizer.cpp
|
b41ee96d76ccf1eec2fd898def4cfd7c16868708 |
|
18-Oct-2010 |
Bill Wendling <isanbard@gmail.com> |
Don't recompute MachineRegisterInfo in the Optimize* method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116750 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.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/CodeGen/PeepholeOptimizer.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/CodeGen/PeepholeOptimizer.cpp
|
04ac81d5db058a3a9492e1aff1f398a8643bfda9 |
|
21-Sep-2010 |
Gabor Greif <ggreif@gmail.com> |
Move the search for the appropriate AND instruction into OptimizeCompareInstr. This necessitates the passing of CmpValue around, so widen the virtual functions to accomodate. No functionality changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114428 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
4f7d107d1d2b2392ce8eb1647e2daa04a81f6c99 |
|
14-Sep-2010 |
Gabor Greif <ggreif@gmail.com> |
must not peephole away side effects git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113848 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
a65568676d0d9d53dd4aae8f1c58271bb4cfff10 |
|
11-Sep-2010 |
Bill Wendling <isanbard@gmail.com> |
Rename ConvertToSetZeroFlag to something more general. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113670 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
3665661a5708c8adc2727be38b56d1d87ddeb661 |
|
11-Sep-2010 |
Bill Wendling <isanbard@gmail.com> |
No need to recompute the SrcReg and CmpValue. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113666 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
92ad57f066e9f256e4e3d72febf152e68caa80c7 |
|
11-Sep-2010 |
Bill Wendling <isanbard@gmail.com> |
Move some of the decision logic for converting an instruction into one that sets the 'zero' bit down into the back-end. There are other cases where this logic isn't sufficient, so they should be handled separately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113665 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
220e240bdf3235252c2a1fc8fcc5d4b8e8117918 |
|
10-Sep-2010 |
Bill Wendling <isanbard@gmail.com> |
Modify the comparison optimizations in the peephole optimizer to update the iterator when an optimization took place. This allows us to do more insane things with the code than just remove an instruction or two. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113640 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
69c5eb59f592087af89b971bea072f070f2a5cfa |
|
27-Aug-2010 |
Bill Wendling <isanbard@gmail.com> |
Remove now unneeded command line flag that enables 'optimize compares.' git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112287 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
75486dbf4e9611f2070bf13b874f78a5587ed7ff |
|
10-Aug-2010 |
Bill Wendling <isanbard@gmail.com> |
Turn optimize compares back on with fix. We needed to test that a machine op was a register before checking if it was defined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110733 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
a8c58a6f59880a5bb2ef8fc86ebdeb15e96ed110 |
|
10-Aug-2010 |
Dan Gohman <gohman@apple.com> |
Revert r110718; it broke clang-i386-darwin9. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110726 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
a54e3cddce8e9f5e84e1124466b9134f90961c84 |
|
10-Aug-2010 |
Bill Wendling <isanbard@gmail.com> |
Turn optimize cmps on by default so that we can get some testing by the nightly ARM testers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110718 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|
6cdb1abe4e4f6364649e7ef656589441754e82ae |
|
10-Aug-2010 |
Bill Wendling <isanbard@gmail.com> |
Merge the OptimizeExts and OptimizeCmps passes into one PeepholeOptimizer pass. This pass should expand with all of the small, fine-grained optimization passes to reduce compile time and increase happiment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110627 91177308-0d34-0410-b5e6-96231b3b80d8
/external/llvm/lib/CodeGen/PeepholeOptimizer.cpp
|