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[InstCombine] add tests for fold with no coverage and missing vector fold 

llvm-svn: 278867
This commit is contained in:
Sanjay Patel 2016-08-16 23:18:42 +00:00
parent 07d61425e3
commit 7ad324b396
1 changed files with 21 additions and 0 deletions
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21
llvm/test/Transforms/InstCombine/2008-01-29-AddICmp.ll
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@ -67,3 +67,24 @@ define <2 x i1> @test3vec(<2 x i32> %a) {
ret <2 x i1> %c
}
define i1 @test4(i32 %a) {
; CHECK-LABEL: @test4(
; CHECK-NEXT: [[C:%.*]] = icmp slt i32 %a, -4
; CHECK-NEXT: ret i1 [[C]]
;
%b = add i32 %a, 2147483652
%c = icmp sge i32 %b, 4
ret i1 %c
}
define <2 x i1> @test4vec(<2 x i32> %a) {
; CHECK-LABEL: @test4vec(
; CHECK-NEXT: [[B:%.*]] = add <2 x i32> %a, <i32 -2147483644, i32 -2147483644>
; CHECK-NEXT: [[C:%.*]] = icmp sgt <2 x i32> [[B]], <i32 3, i32 3>
; CHECK-NEXT: ret <2 x i1> [[C]]
;
%b = add <2 x i32> %a, <i32 2147483652, i32 2147483652>
%c = icmp sge <2 x i32> %b, <i32 4, i32 4>
ret <2 x i1> %c
}