diff options
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 369c4c6..85756a1 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -2811,7 +2811,8 @@ static unsigned getMemModRMByteSize(const MachineInstr &MI, unsigned Op, unsigned BaseReg = Base.getReg(); // Is a SIB byte needed? - if ((!Is64BitMode || DispForReloc) && IndexReg.getReg() == 0 && + if ((!Is64BitMode || DispForReloc || BaseReg != 0) && + IndexReg.getReg() == 0 && (BaseReg == 0 || X86RegisterInfo::getX86RegNum(BaseReg) != N86::ESP)) { if (BaseReg == 0) { // Just a displacement? // Emit special case [disp32] encoding |