[Legalizer] Check full condition for UMIN and UMAX just like the code below does for SMIN and SMAX

[AZero13]

No description provided.

[llvmbot]

@llvm/pr-subscribers-llvm-globalisel

Author: AtariDreams (AtariDreams)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/87932.diff

1 Files Affected:

• (modified) llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp (+1-1)

diff --git a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
index 95c6a359e52ec6..83d8d2944c2b10 100644
--- a/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
+++ b/llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
@@ -3943,7 +3943,7 @@ LegalizerHelper::lower(MachineInstr &MI, unsigned TypeIdx, LLT LowerHintTy) {
     // target can override this with custom lowering and calling the
     // implementation functions.
     LLT Ty = MRI.getType(MI.getOperand(0).getReg());
-    if (LI.isLegalOrCustom({G_UMIN, Ty}))
+    if (LI.isLegalOrCustom({G_UMIN, Ty}) && LI.isLegalOrCustom({G_UMAX, Ty}))
       return lowerAddSubSatToMinMax(MI);
     return lowerAddSubSatToAddoSubo(MI);
   }