diff options
Diffstat (limited to 'test/Analysis')
| -rw-r--r-- | test/Analysis/TypeBasedAliasAnalysis/licm.ll | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/Analysis/TypeBasedAliasAnalysis/licm.ll b/test/Analysis/TypeBasedAliasAnalysis/licm.ll index eedc1e8..aa0ebdb 100644 --- a/test/Analysis/TypeBasedAliasAnalysis/licm.ll +++ b/test/Analysis/TypeBasedAliasAnalysis/licm.ll @@ -3,6 +3,7 @@ ; LICM should be able to hoist the address load out of the loop ; by using TBAA information. +; CHECK: @foo ; CHECK: entry: ; CHECK-NEXT: %tmp3 = load double** @P, !tbaa !0 ; CHECK-NEXT: br label %for.body @@ -31,3 +32,30 @@ for.end: ; preds = %for.body, %entry !0 = metadata !{metadata !"root", null} !1 = metadata !{metadata !"pointer", metadata !0} !2 = metadata !{metadata !"double", metadata !0} + +; LICM shouldn't hoist anything here. + +; CHECK: @bar +; CHECK: loop: +; CHECK: load +; CHECK: store +; CHECK: load +; CHECK: store +; CHECK: br label %loop + +define void @bar(i8** %p) nounwind { +entry: + %q = bitcast i8** %p to i8* + br label %loop + +loop: + %tmp51 = load i8** %p, !tbaa !4 + store i8* %tmp51, i8** %p + %tmp40 = load i8* %q, !tbaa !5 + store i8 %tmp40, i8* %q + br label %loop +} + +!3 = metadata !{metadata !"pointer", metadata !4} +!4 = metadata !{metadata !"char", metadata !5} +!5 = metadata !{metadata !"root", null} |