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Revert "[X86][DAGISel] Don't widen shuffle element with AVX512"
This reverts commit 5fb4134. This patch is causing crashes when building llvm-test-suite when optimizing for CPUs with AVX512. Reproducer crashing with llc: target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx" define i32 @test(<32 x i32> %0) #0 { entry: %1 = mul <32 x i32> %0, <i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1, i32 1> %2 = tail call i32 @llvm.vector.reduce.add.v32i32(<32 x i32> %1) ret i32 %2 } ; Function Attrs: nocallback nofree nosync nounwind readnone willreturn declare i32 @llvm.vector.reduce.add.v32i32(<32 x i32>) #1 attributes #0 = { "min-legal-vector-width"="0" "target-cpu"="skylake-avx512" } attributes #1 = { nocallback nofree nosync nounwind readnone willreturn }
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