[llvm] [DAG] isSplatValue - node is a splat if all demanded elts have the same whole constant value (PR #74443)

[Phoebe Wang via llvm-commits]

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@@ -54,7 +54,10 @@ define void @program_1(ptr %dest, ptr %t0, <4 x float> %p0, <4 x float> %p1, <4
 ; X32-NEXT:    xorps %xmm0, %xmm0
 ; X32-NEXT:    movaps %xmm0, {{[-0-9]+}}(%e{{[sb]}}p) ## 16-byte Spill
 ; X32-NEXT:    movaps {{[-0-9]+}}(%e{{[sb]}}p), %xmm0 ## 16-byte Reload
-; X32-NEXT:    mulps %xmm0, %xmm0
+; X32-NEXT:    mulss {{\.?LCPI[0-9]+_[0-9]+}}, %xmm0
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phoebewang wrote:

The prefix should be `X86`.

https://github.com/llvm/llvm-project/pull/74443