diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86CallFrameOptimization.cpp')
-rw-r--r-- | llvm/lib/Target/X86/X86CallFrameOptimization.cpp | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp index a7d157b..765af67d 100644 --- a/llvm/lib/Target/X86/X86CallFrameOptimization.cpp +++ b/llvm/lib/Target/X86/X86CallFrameOptimization.cpp @@ -234,12 +234,6 @@ bool X86CallFrameOptimization::runOnMachineFunction(MachineFunction &MF) { assert(isPowerOf2_32(SlotSize) && "Expect power of 2 stack slot size"); Log2SlotSize = Log2_32(SlotSize); - // Set initial incoming and outgoing cfa offset and register values for basic - // blocks. This is done here because this pass runs before PEI and can insert - // CFI instructions. - // TODO: Find a better solution to this problem. - TFL->initializeCFIInfo(MF); - if (skipFunction(*MF.getFunction()) || !isLegal(MF)) return false; @@ -542,13 +536,11 @@ void X86CallFrameOptimization::adjustCallSequence(MachineFunction &MF, // For debugging, when using SP-based CFA, we need to adjust the CFA // offset after each push. // TODO: This is needed only if we require precise CFA. - if (!TFL->hasFP(MF)) { - TFL->BuildCFI(MBB, std::next(Push), DL, - MCCFIInstruction::createAdjustCfaOffset(nullptr, SlotSize)); - // Update the CFI information for MBB and it's successors. - MBB.updateCFIInfo(std::next(Push)); - MBB.updateCFIInfoSucc(); - } + if (!TFL->hasFP(MF)) + TFL->BuildCFI( + MBB, std::next(Push), DL, + MCCFIInstruction::createAdjustCfaOffset(nullptr, SlotSize)); + MBB.erase(MOV); } |