diff options
| author | Daniel Dunbar <daniel@zuster.org> | 2009-04-20 07:11:47 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2009-04-20 07:11:47 +0000 |
| commit | c7c6dc0c7ad547f03778502a63a18c3277dd93b5 (patch) | |
| tree | 73c92ef3c2091fa53b5c21289c019cc5c0cb3cc6 | |
| parent | 9378ba44b3f46d697653003c784be87746e138d2 (diff) | |
Set a bit in IMAGE_INFO to indicate that we don't contain any
@synthesized ivars for superclasses.
- <rdar://problem/6806371> [clang] Mark code without miscompiled
@synthesized properties
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69581 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/CGObjCMac.cpp | 15 | ||||
| -rw-r--r-- | test/CodeGenObjC/image-info.m | 2 |
2 files changed, 14 insertions, 3 deletions
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp index 0c7b6f6160..b95e67e707 100644 --- a/lib/CodeGen/CGObjCMac.cpp +++ b/lib/CodeGen/CGObjCMac.cpp @@ -2426,9 +2426,15 @@ llvm::Value *CGObjCMac::EmitIvarOffset(CodeGen::CodeGenFunction &CGF, /// unsigned flags; /// }; enum ImageInfoFlags { - eImageInfo_FixAndContinue = (1 << 0), // FIXME: Not sure what this implies - eImageInfo_GarbageCollected = (1 << 1), - eImageInfo_GCOnly = (1 << 2) + eImageInfo_FixAndContinue = (1 << 0), // FIXME: Not sure what + // this implies. + eImageInfo_GarbageCollected = (1 << 1), + eImageInfo_GCOnly = (1 << 2), + eImageInfo_OptimizedByDyld = (1 << 3), // FIXME: When is this set. + + // A flag indicating that the module has no instances of an + // @synthesize of a superclass variable. <rdar://problem/6803242> + eImageInfo_CorrectedSynthesize = (1 << 4) }; void CGObjCMac::EmitImageInfo() { @@ -2440,6 +2446,9 @@ void CGObjCMac::EmitImageInfo() { flags |= eImageInfo_GarbageCollected; if (CGM.getLangOptions().getGCMode() == LangOptions::GCOnly) flags |= eImageInfo_GCOnly; + + // We never allow @synthesize of a superclass property. + flags |= eImageInfo_CorrectedSynthesize; // Emitted as int[2]; llvm::Constant *values[2] = { diff --git a/test/CodeGenObjC/image-info.m b/test/CodeGenObjC/image-info.m new file mode 100644 index 0000000000..e8650129e3 --- /dev/null +++ b/test/CodeGenObjC/image-info.m @@ -0,0 +1,2 @@ +// RUN: clang-cc -triple x86_64-apple-darwin-10 -emit-llvm -o %t %s && +// RUN: grep -F '@"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__OBJC, __image_info,regular"' %t |