an instruction that requires a WHOLE NEW wonderful kind of alias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115015
91177308-0d34-0410-b5e6-
96231b3b80d8
/// explaining the match failure.
virtual bool
MatchAndEmitInstruction(SMLoc IDLoc,
/// explaining the match failure.
virtual bool
MatchAndEmitInstruction(SMLoc IDLoc,
- const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
bool ParseDirectiveSyntax(SMLoc L);
bool MatchAndEmitInstruction(SMLoc IDLoc,
bool ParseDirectiveSyntax(SMLoc L);
bool MatchAndEmitInstruction(SMLoc IDLoc,
- const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
- MCStreamer &Out) {
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ MCStreamer &Out) {
MCInst Inst;
unsigned ErrorInfo;
if (MatchInstructionImpl(Operands, Inst, ErrorInfo) == Match_Success) {
MCInst Inst;
unsigned ErrorInfo;
if (MatchInstructionImpl(Operands, Inst, ErrorInfo) == Match_Success) {
bool ParseDirectiveWord(unsigned Size, SMLoc L);
bool MatchAndEmitInstruction(SMLoc IDLoc,
bool ParseDirectiveWord(unsigned Size, SMLoc L);
bool MatchAndEmitInstruction(SMLoc IDLoc,
- const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
MCStreamer &Out);
/// @name Auto-generated Matcher Functions
MCStreamer &Out);
/// @name Auto-generated Matcher Functions
bool X86ATTAsmParser::
MatchAndEmitInstruction(SMLoc IDLoc,
bool X86ATTAsmParser::
MatchAndEmitInstruction(SMLoc IDLoc,
- const SmallVectorImpl<MCParsedAsmOperand*> &Operands,
+ SmallVectorImpl<MCParsedAsmOperand*> &Operands,
MCStreamer &Out) {
assert(!Operands.empty() && "Unexpect empty operand list!");
MCStreamer &Out) {
assert(!Operands.empty() && "Unexpect empty operand list!");
+ X86Operand *Op = static_cast<X86Operand*>(Operands[0]);
+ assert(Op->isToken() && "Leading operand should always be a mnemonic!");
+
+ // First, handle aliases that expand to multiple instructions.
+ // FIXME: This should be replaced with a real .td file alias mechanism.
+ if (Op->getToken() == "fstsw") {
+ MCInst Inst;
+ Inst.setOpcode(X86::WAIT);
+ Out.EmitInstruction(Inst);
+ delete Operands[0];
+ Operands[0] = X86Operand::CreateToken("fnstsw", IDLoc);
+ }
+
+
bool WasOriginallyInvalidOperand = false;
unsigned OrigErrorInfo;
MCInst Inst;
bool WasOriginallyInvalidOperand = false;
unsigned OrigErrorInfo;
MCInst Inst;
// valid prefixes, and we could just infer the right unambiguous
// type. However, that requires substantially more matcher support than the
// following hack.
// valid prefixes, and we could just infer the right unambiguous
// type. However, that requires substantially more matcher support than the
// following hack.
-
- X86Operand *Op = static_cast<X86Operand*>(Operands[0]);
- assert(Op->isToken() && "Leading operand should always be a mnemonic!");
// Change the operand to point to a temporary token.
StringRef Base = Op->getToken();
// Change the operand to point to a temporary token.
StringRef Base = Op->getToken();
cbw // CHECK: cbtw
cwd // CHECK: cwtd
cdq // CHECK: cltd
cbw // CHECK: cbtw
cwd // CHECK: cwtd
cdq // CHECK: cltd
+
+// rdar://8456378 and PR7557 - fstsw
+fstsw %ax
+// CHECK: wait
+// CHECK: fnstsw %ax
+fstsw (%rax)
+// CHECK: wait
+// CHECK: fnstsw (%rax)