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[InstCombine] add test for missing vector icmp fold 

llvm-svn: 278631
This commit is contained in:
Sanjay Patel 2016-08-14 21:05:08 +00:00
parent 66a3457a4c
commit bbb3dffd0a
1 changed files with 13 additions and 0 deletions
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13
llvm/test/Transforms/InstCombine/apint-shl-trunc.ll
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@ -25,3 +25,16 @@ define i1 @test1(i799 %X, i799 %A) {
ret i1 %D
}
; FIXME: Vectors should fold the same way.
define <2 x i1> @test0vec(<2 x i39> %X, <2 x i39> %A) {
; CHECK-LABEL: @test0vec(
; CHECK-NEXT: [[B:%.*]] = lshr <2 x i39> %X, %A
; CHECK-NEXT: [[TMP1:%.*]] = and <2 x i39> [[B]], <i39 1, i39 1>
; CHECK-NEXT: [[D:%.*]] = icmp ne <2 x i39> [[TMP1]], zeroinitializer
; CHECK-NEXT: ret <2 x i1> [[D]]
;
%B = lshr <2 x i39> %X, %A
%D = trunc <2 x i39> %B to <2 x i1>
ret <2 x i1> %D
}