[llvm] AMDGPU: Don't canonicalize fminnum/fmaxnum if targets support IEEE fminimum(maximum)_num (PR #127711)

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git-clang-format --diff 0afe2bd21b06bed4d48eb88a99d13a768426359c 8a2a4c7d3d6dd3068c9790b8648211b6b79b5cfc --extensions cpp,h -- llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h llvm/include/llvm/CodeGen/TargetLowering.h llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp llvm/lib/Target/AMDGPU/GCNSubtarget.h llvm/lib/Target/AMDGPU/SIISelLowering.cpp
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diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 5804a42172..4c475960d8 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -8487,8 +8487,7 @@ TargetLowering::createSelectForFMINNUM_FMAXNUM(SDNode *Node,
   return SDValue();
 }
 
-SDValue TargetLowering::expandFMINNUM_FMAXNUM(SDNode *Node,
-                                              SelectionDAG &DAG,
+SDValue TargetLowering::expandFMINNUM_FMAXNUM(SDNode *Node, SelectionDAG &DAG,
                                               bool ShouldCanonicalize) const {
   if (SDValue Expanded = expandVectorNaryOpBySplitting(Node, DAG))
     return Expanded;
diff --git a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
index 4ce8ffb395..37ecb08e7e 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
@@ -2711,7 +2711,7 @@ bool AMDGPULegalizerInfo::legalizeMinNumMaxNum(LegalizerHelper &Helper,
     return true;
 
   return Helper.lowerFMinNumMaxNum(MI, !ST.hasIEEEMinNumMaxNum()) ==
-      LegalizerHelper::Legalized;
+         LegalizerHelper::Legalized;
 }
 
 bool AMDGPULegalizerInfo::legalizeExtractVectorElt(

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https://github.com/llvm/llvm-project/pull/127711