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make this test less trivial. 

llvm-svn: 131845
This commit is contained in:
Chris Lattner 2011-05-22 06:59:33 +00:00
parent 2e83c4c4c3
commit cc87723178
1 changed files with 6 additions and 4 deletions
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10
llvm/test/Transforms/GVN/preserve-tbaa.ll
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@ -5,9 +5,9 @@ target datalayout = "e-p:64:64:64"
; GVN should preserve the TBAA tag on loads when doing PRE.
; CHECK: @test
; CHECK: %tmp33.pre = load i16* undef, align 2, !tbaa !0
; CHECK: %tmp33.pre = load i16* %P, align 2, !tbaa !0
; CHECK: br label %for.body
define void @test() nounwind {
define void @test(i16 *%P, i16* %Q) nounwind {
entry:
br i1 undef, label %bb.nph, label %for.end
@ -15,8 +15,10 @@ bb.nph: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body, %bb.nph
%tmp33 = load i16* undef, align 2, !tbaa !0
store i16 undef, i16* undef, align 2, !tbaa !0
%tmp33 = load i16* %P, align 2, !tbaa !0
store i16 %tmp33, i16* %Q
store i16 0, i16* %P, align 2, !tbaa !0
br i1 false, label %for.end, label %for.body
for.end: ; preds = %for.body, %entry