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[InstCombine] add vector icmp tests with undefs; NFC 

llvm-svn: 335261
This commit is contained in:
Sanjay Patel 2018-06-21 17:37:14 +00:00
parent d68983e3d5
commit 5522e968ad
1 changed files with 23 additions and 0 deletions
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23
llvm/test/Transforms/InstCombine/vec_sext.ll
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@ -45,3 +45,26 @@ define <4 x i32> @test1(<4 x i32> %a, <4 x i32> %b) {
ret <4 x i32> %cond
}
define <2 x i32> @is_negative_undef_elt(<2 x i32> %a) {
; CHECK-LABEL: @is_negative_undef_elt(
; CHECK-NEXT: [[CMP:%.*]] = icmp slt <2 x i32> [[A:%.*]], <i32 0, i32 undef>
; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[CMP]] to <2 x i32>
; CHECK-NEXT: ret <2 x i32> [[SEXT]]
;
%cmp = icmp slt <2 x i32> %a, <i32 0, i32 undef>
%sext = sext <2 x i1> %cmp to <2 x i32>
ret <2 x i32> %sext
}
define <2 x i32> @is_positive_undef_elt(<2 x i32> %a) {
; CHECK-LABEL: @is_positive_undef_elt(
; CHECK-NEXT: [[CMP:%.*]] = icmp sgt <2 x i32> [[A:%.*]], <i32 undef, i32 -1>
; CHECK-NEXT: [[SEXT:%.*]] = sext <2 x i1> [[CMP]] to <2 x i32>
; CHECK-NEXT: ret <2 x i32> [[SEXT]]
;
%cmp = icmp sgt <2 x i32> %a, <i32 undef, i32 -1>
%sext = sext <2 x i1> %cmp to <2 x i32>
ret <2 x i32> %sext
}