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preemptively add the rest of the non-n fpstack instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115168 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-09-30 17:11:29 +00:00
parent 5660904a2c
commit 905f2e0669
2 changed files with 10 additions and 3 deletions
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9
lib/Target/X86/AsmParser/X86AsmParser.cpp
View File

@@ -1120,7 +1120,8 @@ MatchAndEmitInstruction(SMLoc IDLoc,
// First, handle aliases that expand to multiple instructions. // First, handle aliases that expand to multiple instructions.
// FIXME: This should be replaced with a real .td file alias mechanism. // FIXME: This should be replaced with a real .td file alias mechanism.
if (Op->getToken() == "fstsw" || Op->getToken() == "fstcw" || if (Op->getToken() == "fstsw" || Op->getToken() == "fstcw" ||
Op->getToken() == "finit") { Op->getToken() == "finit" || Op->getToken() == "fsave" ||
Op->getToken() == "fstenv") {
MCInst Inst; MCInst Inst;
Inst.setOpcode(X86::WAIT); Inst.setOpcode(X86::WAIT);
Out.EmitInstruction(Inst); Out.EmitInstruction(Inst);
@@ -1128,9 +1129,11 @@ MatchAndEmitInstruction(SMLoc IDLoc,
delete Operands[0]; delete Operands[0];
const char *Repl = const char *Repl =
StringSwitch<const char*>(Op->getToken()) StringSwitch<const char*>(Op->getToken())
.Case("fstsw", "fnstsw")
.Case("fstcw", "fnstcw")
.Case("finit", "fninit") .Case("finit", "fninit")
.Case("fsave", "fnsave")
.Case("fstcw", "fnstcw")
.Case("fstenv", "fnstenv")
.Case("fstsw", "fnstsw")
.Default(0); .Default(0);
assert(Repl && "Unknown wait-prefixed instruction"); assert(Repl && "Unknown wait-prefixed instruction");
Operands[0] = X86Operand::CreateToken(Repl, IDLoc); Operands[0] = X86Operand::CreateToken(Repl, IDLoc);

4
test/MC/AsmParser/X86/x86_instructions.s
View File

@@ -431,6 +431,10 @@ finit
// CHECK: wait // CHECK: wait
// CHECK: fninit // CHECK: fninit
fsave 32493
// CHECK: wait
// CHECK: fnsave 32493
// rdar://8456382 - cvtsd2si support. // rdar://8456382 - cvtsd2si support.
cvtsd2si %xmm1, %rax cvtsd2si %xmm1, %rax