diff options
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/ShrinkWrap.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/ShrinkWrap.cpp b/llvm/lib/CodeGen/ShrinkWrap.cpp index ed01a90969d..2d9012978fd 100644 --- a/llvm/lib/CodeGen/ShrinkWrap.cpp +++ b/llvm/lib/CodeGen/ShrinkWrap.cpp @@ -240,6 +240,10 @@ INITIALIZE_PASS_END(ShrinkWrap, DEBUG_TYPE, "Shrink Wrap Pass", false, false) bool ShrinkWrap::useOrDefCSROrFI(const MachineInstr &MI, RegScavenger *RS) const { + // Ignore DBG_VALUE and other meta instructions that must not affect codegen. + if (MI.isMetaInstruction()) + return false; + if (MI.getOpcode() == FrameSetupOpcode || MI.getOpcode() == FrameDestroyOpcode) { DEBUG(dbgs() << "Frame instruction: " << MI << '\n'); |
