diff options
Diffstat (limited to 'test/Transforms/SROA/basictest.ll')
| -rw-r--r-- | test/Transforms/SROA/basictest.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/test/Transforms/SROA/basictest.ll b/test/Transforms/SROA/basictest.ll index ca52dceb8f..9e5a26104d 100644 --- a/test/Transforms/SROA/basictest.ll +++ b/test/Transforms/SROA/basictest.ll @@ -1317,3 +1317,23 @@ define void @PR15805(i1 %a, i1 %b) { %cond = load i64* %cond.in, align 8 ret void } + +define void @PR16651(i8* %a) { +; This test case caused a crash due to the volatile memcpy in combination with +; lowering to integer loads and stores of a width other than that of the original +; memcpy. +; +; CHECK-LABEL: @PR16651( +; CHECK: alloca i16 +; CHECK: alloca i8 +; CHECK: alloca i8 +; CHECK: unreachable + +entry: + %b = alloca i32, align 4 + %b.cast = bitcast i32* %b to i8* + call void @llvm.memcpy.p0i8.p0i8.i32(i8* %b.cast, i8* %a, i32 4, i32 4, i1 true) + %b.gep = getelementptr inbounds i8* %b.cast, i32 2 + load i8* %b.gep, align 2 + unreachable +} |