diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86FrameLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86FrameLowering.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/llvm/lib/Target/X86/X86FrameLowering.cpp b/llvm/lib/Target/X86/X86FrameLowering.cpp index edc41145a7d..c9715f1ae84 100644 --- a/llvm/lib/Target/X86/X86FrameLowering.cpp +++ b/llvm/lib/Target/X86/X86FrameLowering.cpp @@ -1935,6 +1935,9 @@ void X86FrameLowering::adjustForHiPEPrologue( bool X86FrameLowering::adjustStackWithPops(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI, DebugLoc DL, int Offset) const { + if (Offset <= 0) + return false; + if (Offset % SlotSize) return false; @@ -1955,9 +1958,11 @@ bool X86FrameLowering::adjustStackWithPops(MachineBasicBlock &MBB, unsigned FoundRegs = 0; auto RegMask = Prev->getOperand(1); - - // Try to find up to NumPops free registers. - for (auto Candidate : X86::GR32_NOREX_NOSPRegClass) { + + auto &RegClass = + Is64Bit ? X86::GR64_NOREX_NOSPRegClass : X86::GR32_NOREX_NOSPRegClass; + // Try to find up to NumPops free registers. + for (auto Candidate : RegClass) { // Poor man's liveness: // Since we're immediately after a call, any register that is clobbered |
