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| author | Eli Friedman <eli.friedman@gmail.com> | 2013-07-26 00:53:29 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2013-07-26 00:53:29 +0000 |
| commit | 11311eaf6093a5374f94047df354d4c62d68c611 (patch) | |
| tree | 06a0a59bb6ef84d12db8f5c1a39a60723825524b /test/CodeGenObjC/stret_lookup.m | |
| parent | 34f3bcf7f2907f618f7a10d919bda47e53db60dd (diff) | |
| download | clang-11311eaf6093a5374f94047df354d4c62d68c611.tar.gz | |
Fix GNU ObjC ABI for a message returning a struct.
This allows the ObjFW runtime to correctly implement message forwarding
for messages which return a struct.
Patch by Jonathan Schleifer.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@187174 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenObjC/stret_lookup.m')
| -rw-r--r-- | test/CodeGenObjC/stret_lookup.m | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/CodeGenObjC/stret_lookup.m b/test/CodeGenObjC/stret_lookup.m new file mode 100644 index 0000000000..c9ac7131eb --- /dev/null +++ b/test/CodeGenObjC/stret_lookup.m @@ -0,0 +1,29 @@ +// RUN: %clang_cc1 -DSTRET -triple x86_64-pc-linux-gnu -fobjc-runtime=objfw -emit-llvm -o - %s | FileCheck -check-prefix=HASSTRET %s +// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fobjc-runtime=gcc -emit-llvm -o - %s | FileCheck -check-prefix=NOSTRET %s + +// Test stret lookup + +struct test { + char test[1024]; +}; +@interface Test0 ++ (struct test)test; +@end +void test0(void) { + struct test t; +#if (defined(STRET) && __has_feature(objc_msg_lookup_stret)) || \ + (!defined(STRET) && !__has_feature(objc_msg_lookup_stret)) + t = [Test0 test]; +#endif + (void)t; +} + +// HASSTRET: define void @test0() +// HASSTRET: [[T0:%.*]] = call i8* (i8*, i8*, ...)* (i8*, i8*)* @objc_msg_lookup_stret(i8* bitcast (i64* @_OBJC_CLASS_Test0 to i8*), +// HASSTRET-NEXT: [[T1:%.*]] = bitcast i8* (i8*, i8*, ...)* [[T0]] to void (%struct.test*, i8*, i8*)* +// HASSTRET-NEXT: call void [[T1]](%struct.test* sret %tmp, i8* bitcast (i64* @_OBJC_CLASS_Test0 to i8*), + +// NOSTRET: define void @test0() +// NOSTRET: [[T0:%.*]] = call i8* (i8*, i8*, ...)* (i8*, i8*)* @objc_msg_lookup(i8* %0, +// NOSTRET-NEXT: [[T1:%.*]] = bitcast i8* (i8*, i8*, ...)* [[T0]] to void (%struct.test*, i8*, i8*)* +// NOSTRET-NEXT: call void [[T1]](%struct.test* sret %tmp, i8* %0, i8* bitcast ([2 x { i8*, i8* }]* |