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[InstCombine] Pre-commit test for D124015

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Reviewed By: spatel

Differential Revision: https://reviews.llvm.org/D124016
This commit is contained in:
Craig Topper 2022-04-20 09:05:28 -07:00
parent 1fae4b492d
commit 11db0bb64d
1 changed files with 14 additions and 0 deletions
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14
llvm/test/Transforms/InstCombine/bitcast.ll
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@ -431,6 +431,20 @@ define <2 x float> @test6(float %A){
ret <2 x float> %tmp35
}
; FIXME: This test should not be optimized by OptimizeIntegerToVectorInsertions.
; The bitcast from vector is confusing it.
define <2 x i64> @int2vec_insertion_bitcast_from_vec(i64 %x) {
; CHECK-LABEL: @int2vec_insertion_bitcast_from_vec(
; CHECK-NEXT: [[TMP1:%.*]] = insertelement <2 x i64> <i64 poison, i64 0>, i64 [[X:%.*]], i64 0
; CHECK-NEXT: ret <2 x i64> [[TMP1]]
;
%a = bitcast i64 %x to <8 x i8>
%b = zext <8 x i8> %a to <8 x i16>
%c = bitcast <8 x i16> %b to i128
%d = bitcast i128 %c to <2 x i64>
ret <2 x i64> %d
}
define i64 @ISPC0(i64 %in) {
; CHECK-LABEL: @ISPC0(
; CHECK-NEXT: ret i64 0