[llvm] [X86] Fix the type of X86ISD::UMUL (PR #117377)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-x86

Author: Sergei Barannikov (s-barannikov)

<details>
<summary>Changes</summary>

Same as SMUL, UMUL produces one result + flags, not two results + flags.


---
Full diff: https://github.com/llvm/llvm-project/pull/117377.diff


1 Files Affected:

- (modified) llvm/lib/Target/X86/X86InstrFragments.td (+2-7) 


``````````diff
diff --git a/llvm/lib/Target/X86/X86InstrFragments.td b/llvm/lib/Target/X86/X86InstrFragments.td
index 038100b8264de7..ba9779cdc335d6 100644
--- a/llvm/lib/Target/X86/X86InstrFragments.td
+++ b/llvm/lib/Target/X86/X86InstrFragments.td
@@ -45,12 +45,7 @@ def SDTBinaryArithWithFlagsInOut : SDTypeProfile<2, 3,
                                              SDTCisInt<0>,
                                              SDTCisVT<1, i32>,
                                              SDTCisVT<4, i32>]>;
-// RES1, RES2, FLAGS = op LHS, RHS
-def SDT2ResultBinaryArithWithFlags : SDTypeProfile<3, 2,
-                                            [SDTCisSameAs<0, 1>,
-                                             SDTCisSameAs<0, 2>,
-                                             SDTCisSameAs<0, 3>,
-                                             SDTCisInt<0>, SDTCisVT<1, i32>]>;
+
 def SDTX86BrCond  : SDTypeProfile<0, 3,
                                   [SDTCisVT<0, OtherVT>,
                                    SDTCisVT<1, i8>, SDTCisVT<2, i32>]>;
@@ -266,7 +261,7 @@ def X86add_flag  : SDNode<"X86ISD::ADD",  SDTBinaryArithWithFlags,
 def X86sub_flag  : SDNode<"X86ISD::SUB",  SDTBinaryArithWithFlags>;
 def X86smul_flag : SDNode<"X86ISD::SMUL", SDTBinaryArithWithFlags,
                           [SDNPCommutative]>;
-def X86umul_flag : SDNode<"X86ISD::UMUL", SDT2ResultBinaryArithWithFlags,
+def X86umul_flag : SDNode<"X86ISD::UMUL", SDTBinaryArithWithFlags,
                           [SDNPCommutative]>;
 def X86adc_flag  : SDNode<"X86ISD::ADC",  SDTBinaryArithWithFlagsInOut>;
 def X86sbb_flag  : SDNode<"X86ISD::SBB",  SDTBinaryArithWithFlagsInOut>;

``````````

</details>


https://github.com/llvm/llvm-project/pull/117377