Add X86 MULX instruction for disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142738 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrArithmetic.td b/lib/Target/X86/X86InstrArithmetic.td
index 6c49b9e..c99c52d 100644
--- a/lib/Target/X86/X86InstrArithmetic.td
+++ b/lib/Target/X86/X86InstrArithmetic.td
@@ -1171,3 +1171,27 @@
defm ANDN32 : bmi_andn<"andn{l}", GR32, i32mem, loadi32>, T8, VEX_4V;
defm ANDN64 : bmi_andn<"andn{q}", GR64, i64mem, loadi64>, T8, VEX_4V, VEX_W;
}
+
+//===----------------------------------------------------------------------===//
+// MULX Instruction
+//
+multiclass bmi_mulx<string mnemonic, RegisterClass RC, X86MemOperand x86memop> {
+let neverHasSideEffects = 1 in {
+ let isCommutable = 1 in
+ def rr : I<0xF6, MRMSrcReg, (outs RC:$dst1, RC:$dst2), (ins RC:$src),
+ !strconcat(mnemonic, "\t{$src, $dst2, $dst1|$dst1, $dst2, $src}"),
+ []>, T8XD, VEX_4V;
+
+ let mayLoad = 1 in
+ def rm : I<0xF6, MRMSrcMem, (outs RC:$dst1, RC:$dst2), (ins x86memop:$src),
+ !strconcat(mnemonic, "\t{$src, $dst2, $dst1|$dst1, $dst2, $src}"),
+ []>, T8XD, VEX_4V;
+}
+}
+
+let Predicates = [HasBMI2] in {
+ let Uses = [EDX] in
+ defm MULX32 : bmi_mulx<"mulx{l}", GR32, i32mem>;
+ let Uses = [RDX] in
+ defm MULX64 : bmi_mulx<"mulx{q}", GR64, i64mem>, VEX_W;
+}