diff options
| author | Logan Chien <tzuhsiang.chien@gmail.com> | 2013-02-20 12:21:33 +0000 |
|---|---|---|
| committer | Logan Chien <tzuhsiang.chien@gmail.com> | 2013-02-20 12:21:33 +0000 |
| commit | af3a5420aeb421e83694745c53141683caa123cb (patch) | |
| tree | a72b33556721b579361b512fc73e22c77e0e1dff /test/CodeGen/Thumb | |
| parent | d9c28d76af4c23e3a131ddd4ca28b64d929828a5 (diff) | |
| download | llvm-af3a5420aeb421e83694745c53141683caa123cb.tar.gz llvm-af3a5420aeb421e83694745c53141683caa123cb.tar.bz2 llvm-af3a5420aeb421e83694745c53141683caa123cb.tar.xz | |
Fix thumbv5e frame lowering assertion failure.
It is possible that frame pointer is not found in the
callee saved info, thus FramePtrSpillFI may be incorrect
if we don't check the result of hasFP(MF).
Besides, if we enable the stack coloring algorithm, there
will be an assertion to ensure the slot is live. But in
the test case, %var1 is not live in the prologue of the
function, and we will get the assertion failure.
Note: There is similar code in ARMFrameLowering.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175616 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Thumb')
| -rw-r--r-- | test/CodeGen/Thumb/stack-coloring-without-frame-ptr.ll | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGen/Thumb/stack-coloring-without-frame-ptr.ll b/test/CodeGen/Thumb/stack-coloring-without-frame-ptr.ll new file mode 100644 index 0000000000..3f6407a0a3 --- /dev/null +++ b/test/CodeGen/Thumb/stack-coloring-without-frame-ptr.ll @@ -0,0 +1,29 @@ +; RUN: llc < %s -march=thumb -mcpu=arm1022e + +%iterator = type { i8**, i8**, i8**, i8*** } +%insert_iterator = type { %deque*, %iterator } +%deque = type { %iterator, %iterator, i8***, i32 } + +define i32 @test_thumbv5e_fp_elim() nounwind optsize { +entry: + %var1 = alloca %iterator, align 4 + %var2 = alloca %insert_iterator, align 4 + %var3 = alloca %deque, align 4 + + %0 = bitcast %deque* %var3 to i8* + %1 = bitcast %iterator* %var1 to i8* + call void @llvm.lifetime.start(i64 16, i8* %1) nounwind + call void @llvm.memcpy.p0i8.p0i8.i32(i8* %1, i8* %0, i32 16, i32 4, i1 false) + call void @llvm.lifetime.end(i64 16, i8* %1) nounwind + + %2 = bitcast %insert_iterator* %var2 to i8* + call void @llvm.lifetime.start(i64 20, i8* %2) nounwind + + ret i32 0 +} + +declare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind + +declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind + +declare void @llvm.lifetime.end(i64, i8* nocapture) nounwind |