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];
faddp %st, %st(1)
fmulp %st, %st(2)
+// rdar://8468087 - Encode these accurately, they are not synonyms.
+// CHECK: fmul %st(0), %st(1)
+// CHECK: encoding: [0xdc,0xc9]
+// CHECK: fmul %st(1)
+// CHECK: encoding: [0xd8,0xc9]
+fmul %st, %st(1)
+fmul %st(1), %st
+
+// CHECK: fadd %st(0), %st(1)
+// CHECK: encoding: [0xdc,0xc1]
+// CHECK: fadd %st(1)
+// CHECK: encoding: [0xd8,0xc1]
+fadd %st, %st(1)
+fadd %st(1), %st
+
+
// rdar://8416805
// CHECK: xorb %al, %al
// CHECK: encoding: [0x30,0xc0]