Fix rdar://8468087 - llvm-mc commutes fmul (and friend) operands.

My previous fix for rdar://8456371 should only apply to fmulp/faddp,
not to fmul/fadd.  Instruction set orthogonality is overrated or 
something.

llvm-svn: 114818

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 18fb173e1c1..698e282f265 100644
--- a/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/llvm/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -910,11 +910,10 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
     delete Operands[2];
     Operands.erase(Operands.begin() + 2);
   }
-
-  // FIXME: Hack to handle "f{mul*,add*} st(0), $op" the same as
-  // "f{mul*,add*} $op", since they commute.
-  if ((Name.startswith("fmul") || Name.startswith("fadd")) &&
-      Operands.size() == 3 &&
+  
+  // FIXME: Hack to handle "f{mulp,addp} st(0), $op" the same as
+  // "f{mulp,addp} $op", since they commute.
+  if ((Name == "fmulp" || Name == "faddp") && Operands.size() == 3 &&
       static_cast<X86Operand*>(Operands[1])->isReg() &&
       static_cast<X86Operand*>(Operands[1])->getReg() == X86::ST0) {
     delete Operands[1];