diff options
Diffstat (limited to 'lib/Target/X86/X86FixupLEAs.cpp')
-rw-r--r-- | lib/Target/X86/X86FixupLEAs.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/X86/X86FixupLEAs.cpp b/lib/Target/X86/X86FixupLEAs.cpp index d21cb8a..38a8351 100644 --- a/lib/Target/X86/X86FixupLEAs.cpp +++ b/lib/Target/X86/X86FixupLEAs.cpp @@ -125,6 +125,15 @@ FixupLEAPass::postRAConvertToLEA(MachineFunction::iterator &MFI, // which requires isImm() to be true return 0; } + break; + case X86::ADD16rr: + case X86::ADD16rr_DB: + if (MI->getOperand(1).getReg() != MI->getOperand(2).getReg()) { + // if src1 != src2, then convertToThreeAddress will + // need to create a Virtual register, which we cannot do + // after register allocation. + return 0; + } } return TII->convertToThreeAddress(MFI, MBBI, 0); } |