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| author | Devang Patel <dpatel@apple.com> | 2011-03-17 22:18:16 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2011-03-17 22:18:16 +0000 |
| commit | 813c9a0f19c0d27085a3ea81eb44033747007741 (patch) | |
| tree | 62f672bd1b588cc0bbb49f142864ab808a221e24 /lib/Transforms/InstCombine | |
| parent | e68d8ec25296574109b586359d37318c725442ac (diff) | |
| download | external_llvm-813c9a0f19c0d27085a3ea81eb44033747007741.zip external_llvm-813c9a0f19c0d27085a3ea81eb44033747007741.tar.gz external_llvm-813c9a0f19c0d27085a3ea81eb44033747007741.tar.bz2 | |
Try to not lose variable's debug info during instcombine.
This is done by lowering dbg.declare intrinsic into dbg.value intrinsic.
Radar 9143931.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127834 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine')
| -rw-r--r-- | lib/Transforms/InstCombine/InstructionCombining.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/InstCombine/InstructionCombining.cpp b/lib/Transforms/InstCombine/InstructionCombining.cpp index 37123d0..d88162a 100644 --- a/lib/Transforms/InstCombine/InstructionCombining.cpp +++ b/lib/Transforms/InstCombine/InstructionCombining.cpp @@ -1648,6 +1648,10 @@ bool InstCombiner::runOnFunction(Function &F) { bool EverMadeChange = false; + // Lower dbg.declare intrinsics otherwise their value may be clobbered + // by instcombiner. + EverMadeChange = LowerDbgDeclare(F); + // Iterate while there is work to do. unsigned Iteration = 0; while (DoOneIteration(F, Iteration++)) |