diff options
| -rw-r--r-- | lib/Target/X86/AsmParser/X86AsmParser.cpp | 8 | ||||
| -rw-r--r-- | test/MC/AsmParser/X86/x86_instructions.s | 6 |
2 files changed, 14 insertions, 0 deletions
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp index 4c51ed674e..d8650e0604 100644 --- a/lib/Target/X86/AsmParser/X86AsmParser.cpp +++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp @@ -1015,6 +1015,14 @@ ParseInstruction(StringRef Name, SMLoc NameLoc, Operands[0] = X86Operand::CreateToken("movsl", NameLoc); } + // fstp <mem> -> fstps <mem>. Without this, we'll default to fstpl due to + // suffix searching. + if (Name == "fstp" && Operands.size() == 2 && + static_cast<X86Operand*>(Operands[1])->isMem()) { + delete Operands[0]; + Operands[0] = X86Operand::CreateToken("fstps", NameLoc); + } + return false; } diff --git a/test/MC/AsmParser/X86/x86_instructions.s b/test/MC/AsmParser/X86/x86_instructions.s index 7f8a401c07..207de850e7 100644 --- a/test/MC/AsmParser/X86/x86_instructions.s +++ b/test/MC/AsmParser/X86/x86_instructions.s @@ -310,3 +310,9 @@ enter $0x7ace,$0 enter $0x7ace,$1 enter $0x7ace,$0x7f + +// rdar://8456389 +// CHECK: fstps (%eax) +// CHECK: encoding: [0xd9,0x18] +fstp (%eax) + |