diff options
| -rw-r--r-- | lib/Target/X86/X86FastISel.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86FastISel.cpp b/lib/Target/X86/X86FastISel.cpp index 954a3a0640..e04e91a7ac 100644 --- a/lib/Target/X86/X86FastISel.cpp +++ b/lib/Target/X86/X86FastISel.cpp @@ -549,6 +549,10 @@ bool X86FastISel::X86FastEmitCompare(Value *Op0, Value *Op1, MVT VT) { unsigned Op0Reg = getRegForValue(Op0); if (Op0Reg == 0) return false; + // Handle 'null' like i32/i64 0. + if (isa<ConstantPointerNull>(Op1)) + Op1 = Constant::getNullValue(TD.getIntPtrType()); + // We have two options: compare with register or immediate. If the RHS of // the compare is an immediate that we can fold into this compare, use // CMPri, otherwise use CMPrr. |