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[InstCombine] add test for missing vector icmp fold

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@278639 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sanjay Patel 2016-08-14 22:56:46 +00:00
parent 93591d18ed
commit b3d14d2afd
1 changed files with 22 additions and 6 deletions
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28
test/Transforms/InstCombine/apint-shift.ll
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@ -157,13 +157,29 @@ define i53 @test15a(i1 %X) {
ret i53 %V
}
; CHECK-LABEL: @test16(
; CHECK-NOT: sh
define i1 @test16(i84 %X) {
%tmp.3 = ashr i84 %X, 4 ; <i84> [#uses=1]
%tmp.6 = and i84 %tmp.3, 1 ; <i84> [#uses=1]
%tmp.7 = icmp ne i84 %tmp.6, 0 ; <i1> [#uses=1]
ret i1 %tmp.7
; CHECK-LABEL: @test16(
; CHECK-NEXT: [[AND:%.*]] = and i84 %X, 16
; CHECK-NEXT: [[CMP:%.*]] = icmp ne i84 [[AND]], 0
; CHECK-NEXT: ret i1 [[CMP]]
;
%shr = ashr i84 %X, 4
%and = and i84 %shr, 1
%cmp = icmp ne i84 %and, 0
ret i1 %cmp
}
define <2 x i1> @test16vec(<2 x i84> %X) {
; CHECK-LABEL: @test16vec(
; CHECK-NEXT: [[SHR1:%.*]] = lshr <2 x i84> %X, <i84 4, i84 4>
; CHECK-NEXT: [[AND:%.*]] = and <2 x i84> [[SHR1]], <i84 1, i84 1>
; CHECK-NEXT: [[CMP:%.*]] = icmp ne <2 x i84> [[AND]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%shr = ashr <2 x i84> %X, <i84 4, i84 4>
%and = and <2 x i84> %shr, <i84 1, i84 1>
%cmp = icmp ne <2 x i84> %and, zeroinitializer
ret <2 x i1> %cmp
}
; CHECK-LABEL: @test17(