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[InstSimplify] add vector select tests with undef elts in condition; NFC

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llvm-svn: 325419
This commit is contained in:
Sanjay Patel 2018-02-17 01:18:53 +00:00
parent 06d4b71ddb
commit 4720891604
1 changed files with 20 additions and 0 deletions
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20
test/Transforms/InstSimplify/select.ll
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@ -25,6 +25,26 @@ define <2 x i8> @vsel_mixedvec() {
ret <2 x i8> %s
}
; FIXME: Allow for undef elements in a constant vector condition.
define <3 x i8> @vsel_undef_true_op(<3 x i8> %x, <3 x i8> %y) {
; CHECK-LABEL: @vsel_undef_true_op(
; CHECK-NEXT: [[S:%.*]] = select <3 x i1> <i1 true, i1 undef, i1 true>, <3 x i8> [[X:%.*]], <3 x i8> [[Y:%.*]]
; CHECK-NEXT: ret <3 x i8> [[S]]
;
%s = select <3 x i1><i1 1, i1 undef, i1 1>, <3 x i8> %x, <3 x i8> %y
ret <3 x i8> %s
}
define <3 x i4> @vsel_undef_false_op(<3 x i4> %x, <3 x i4> %y) {
; CHECK-LABEL: @vsel_undef_false_op(
; CHECK-NEXT: [[S:%.*]] = select <3 x i1> <i1 false, i1 undef, i1 undef>, <3 x i4> [[X:%.*]], <3 x i4> [[Y:%.*]]
; CHECK-NEXT: ret <3 x i4> [[S]]
;
%s = select <3 x i1><i1 0, i1 undef, i1 undef>, <3 x i4> %x, <3 x i4> %y
ret <3 x i4> %s
}
define i32 @test1(i32 %x) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: ret i32 %x