implement support for finit, PR8258
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115156 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index e028d41..dc86484 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -1119,7 +1119,8 @@
// First, handle aliases that expand to multiple instructions.
// 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") {
MCInst Inst;
Inst.setOpcode(X86::WAIT);
Out.EmitInstruction(Inst);
@@ -1129,6 +1130,7 @@
StringSwitch<const char*>(Op->getToken())
.Case("fstsw", "fnstsw")
.Case("fstcw", "fnstcw")
+ .Case("finit", "fninit")
.Default(0);
assert(Repl && "Unknown wait-prefixed instruction");
Operands[0] = X86Operand::CreateToken(Repl, IDLoc);
diff --git a/test/MC/AsmParser/X86/x86_instructions.s b/test/MC/AsmParser/X86/x86_instructions.s
index b2ac5ad..4731a08 100644
--- a/test/MC/AsmParser/X86/x86_instructions.s
+++ b/test/MC/AsmParser/X86/x86_instructions.s
@@ -421,6 +421,16 @@
// CHECK: wait
// CHECK: fnstcw (%rsp)
+// PR8259
+fstcw (%rsp)
+// CHECK: wait
+// CHECK: fnstcw (%rsp)
+
+// PR8258
+finit
+// CHECK: wait
+// CHECK: fninit
+
// rdar://8456382 - cvtsd2si support.
cvtsd2si %xmm1, %rax