diff options
Diffstat (limited to 'llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/malloc-and-free.ll')
| -rw-r--r-- | llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/malloc-and-free.ll | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/malloc-and-free.ll b/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/malloc-and-free.ll new file mode 100644 index 00000000000..76c97db8038 --- /dev/null +++ b/llvm/test/Analysis/CFLAliasAnalysis/Steensgaard/malloc-and-free.ll @@ -0,0 +1,30 @@ +; This testcase ensures that CFL AA handles malloc and free in a sound and precise manner + +; RUN: opt < %s -disable-basicaa -cfl-steens-aa -aa-eval -print-no-aliases -disable-output 2>&1 | FileCheck %s +; RUN: opt < %s -aa-pipeline=cfl-steens-aa -passes=aa-eval -print-no-aliases -disable-output 2>&1 | FileCheck %s + +declare noalias i8* @malloc(i64) +declare noalias i8* @calloc(i64, i64) +declare void @free(i8* nocapture) + +; CHECK: Function: test_malloc +; CHECK: NoAlias: i8* %p, i8* %q +define void @test_malloc(i8* %p) { + %q = call i8* @malloc(i64 4) + ret void +} + +; CHECK: Function: test_calloc +; CHECK: NoAlias: i8* %p, i8* %q +define void @test_calloc(i8* %p) { + %q = call i8* @calloc(i64 2, i64 4) + ret void +} + +; CHECK: Function: test_free +; CHECK: NoAlias: i8* %p, i8* %q +define void @test_free(i8* %p) { + %q = alloca i8, align 4 + call void @free(i8* %q) + ret void +} |
