[llvm] [InstCombine] Fix Failure to convert vector fp comparisons that can be represented as integers #82241 (PR #83274)

[Simon Pilgrim via llvm-commits]

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@@ -7286,6 +7286,10 @@ Instruction *InstCombinerImpl::visitICmpInst(ICmpInst &I) {
 Instruction *InstCombinerImpl::foldFCmpIntToFPConst(FCmpInst &I,
                                                     Instruction *LHSI,
                                                     Constant *RHSC) {
+  if (RHSC->getType()->isVectorTy()) {
+    if (Constant *CV = RHSC->getSplatValue(false))
+      RHSC = CV;
+  }
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RKSimon wrote:

@dtcxzyw m_APFloat proposal is better

https://github.com/llvm/llvm-project/pull/83274