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| author | Pete Cooper <peter_cooper@apple.com> | 2019-01-02 21:00:02 +0000 |
|---|---|---|
| committer | Pete Cooper <peter_cooper@apple.com> | 2019-01-02 21:00:02 +0000 |
| commit | 8d5804802498efe95bb3b81d2fdab607e7d1e02b (patch) | |
| tree | e52de6dd4b7579445ea0c6bb8f1a0b4c4b71a20e /llvm/test/Transforms | |
| parent | 88590e99f2757ffc1d3816f7508bef8310a520e6 (diff) | |
| download | bcm5719-llvm-8d5804802498efe95bb3b81d2fdab607e7d1e02b.tar.gz bcm5719-llvm-8d5804802498efe95bb3b81d2fdab607e7d1e02b.zip | |
Fix assert in ObjCARC optimizer when deleting retainBlock of null or undef.
The caller to EraseInstruction had this conditional:
// ARC calls with null are no-ops. Delete them.
if (IsNullOrUndef(Arg))
but the assert inside EraseInstruction only allowed ConstantPointerNull and not
undef or bitcasts.
This adds support for both of these cases.
rdar://problem/47003805
llvm-svn: 350261
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/ObjCARC/rv.ll | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/test/Transforms/ObjCARC/rv.ll b/llvm/test/Transforms/ObjCARC/rv.ll index 604ef59f119..ca3d7e2f848 100644 --- a/llvm/test/Transforms/ObjCARC/rv.ll +++ b/llvm/test/Transforms/ObjCARC/rv.ll @@ -61,6 +61,11 @@ define void @test2() { call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* null) call i8* @llvm.objc.autoreleaseReturnValue(i8* null) ; call i8* @llvm.objc.retainAutoreleaseReturnValue(i8* null) ; TODO + %bitcast = bitcast i32* null to i8* + %rb = call i8* @llvm.objc.retainBlock(i8* %bitcast) + call void @use_pointer(i8* %rb) + %rb2 = call i8* @llvm.objc.retainBlock(i8* undef) + call void @use_pointer(i8* %rb2) ret void } |
