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add tests for icmp vector folds

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llvm-svn: 276475
This commit is contained in:
Sanjay Patel 2016-07-22 21:13:08 +00:00
parent c8566f811b
commit 262eed8e23
1 changed files with 24 additions and 0 deletions
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24
test/Transforms/InstCombine/icmp.ll
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@ -635,6 +635,18 @@ define i1 @test55(i32 %a) {
ret i1 %cmp
}
; FIXME: Vectors should fold the same way.
define <2 x i1> @test55vec(<2 x i32> %a) {
; CHECK-LABEL: @test55vec(
; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i32> zeroinitializer, %a
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i32> [[SUB]], <i32 123, i32 123>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%sub = sub <2 x i32> zeroinitializer, %a
%cmp = icmp eq <2 x i32> %sub, <i32 123, i32 123>
ret <2 x i1> %cmp
}
define i1 @test56(i32 %a) {
; CHECK-LABEL: @test56(
; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %a, -113
@ -645,6 +657,18 @@ define i1 @test56(i32 %a) {
ret i1 %cmp
}
; FIXME: Vectors should fold the same way.
define <2 x i1> @test56vec(<2 x i32> %a) {
; CHECK-LABEL: @test56vec(
; CHECK-NEXT: [[SUB:%.*]] = sub <2 x i32> <i32 10, i32 10>, %a
; CHECK-NEXT: [[CMP:%.*]] = icmp eq <2 x i32> [[SUB]], <i32 123, i32 123>
; CHECK-NEXT: ret <2 x i1> [[CMP]]
;
%sub = sub <2 x i32> <i32 10, i32 10>, %a
%cmp = icmp eq <2 x i32> %sub, <i32 123, i32 123>
ret <2 x i1> %cmp
}
; PR10267 Don't make icmps more expensive when no other inst is subsumed.
declare void @foo(i32)
define i1 @test57(i32 %a) {