[clang] [flang] [libc] [libcxx] [lld] [lldb] [llvm] [mlir] [LV] Vectorize maxnum/minnum w/o fast-math flags. (PR #148239)

[Florian Hahn via cfe-commits]

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@@ -652,3 +652,146 @@ void VPlanTransforms::attachCheckBlock(VPlan &Plan, Value *Cond,
     Term->addMetadata(LLVMContext::MD_prof, BranchWeights);
   }
 }
+
+bool VPlanTransforms::handleMaxMinNumReductionsWithoutFastMath(VPlan &Plan) {
+  VPRegionBlock *LoopRegion = Plan.getVectorLoopRegion();
+  VPReductionPHIRecipe *RedPhiR = nullptr;
+  bool HasUnsupportedPhi = false;
+
+  auto GetMinMaxCompareValue = [](VPReductionPHIRecipe *RedPhiR) -> VPValue * {
+    auto *MinMaxR = dyn_cast<VPRecipeWithIRFlags>(
+        RedPhiR->getBackedgeValue()->getDefiningRecipe());
+    if (!MinMaxR)
+      return nullptr;
+
+    auto *RepR = dyn_cast<VPReplicateRecipe>(MinMaxR);
+    if (!isa<VPWidenIntrinsicRecipe>(MinMaxR) &&
+        !(RepR && (isa<IntrinsicInst>(RepR->getUnderlyingInstr()))))
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fhahn wrote:

Removed, thanks

https://github.com/llvm/llvm-project/pull/148239