diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/Analysis/BasicAA/2014-03-18-Maxlookup-reached.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/test/Analysis/BasicAA/2014-03-18-Maxlookup-reached.ll b/test/Analysis/BasicAA/2014-03-18-Maxlookup-reached.ll new file mode 100644 index 00000000000..bc2512eca0c --- /dev/null +++ b/test/Analysis/BasicAA/2014-03-18-Maxlookup-reached.ll @@ -0,0 +1,36 @@ +; RUN: opt < %s -basicaa -gvn -S | FileCheck %s + +; PR15967 +; BasicAA claims no alias when there is (due to a problem when the MaxLookup +; limit was reached). + +target datalayout = "e" + +%struct.foo = type { i32, i32 } + +define i32 @main() { + %t = alloca %struct.foo, align 4 + %1 = getelementptr inbounds %struct.foo* %t, i32 0, i32 0 + store i32 1, i32* %1, align 4 + %2 = getelementptr inbounds %struct.foo* %t, i64 1 + %3 = bitcast %struct.foo* %2 to i8* + %4 = getelementptr inbounds i8* %3, i32 -1 + store i8 0, i8* %4 + %5 = getelementptr inbounds i8* %4, i32 -1 + store i8 0, i8* %5 + %6 = getelementptr inbounds i8* %5, i32 -1 + store i8 0, i8* %6 + %7 = getelementptr inbounds i8* %6, i32 -1 + store i8 0, i8* %7 + %8 = getelementptr inbounds i8* %7, i32 -1 + store i8 0, i8* %8 + %9 = getelementptr inbounds i8* %8, i32 -1 + store i8 0, i8* %9 + %10 = getelementptr inbounds i8* %9, i32 -1 + store i8 0, i8* %10 + %11 = getelementptr inbounds i8* %10, i32 -1 + store i8 0, i8* %11 + %12 = load i32* %1, align 4 + ret i32 %12 +; CHECK: ret i32 %12 +} |