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| author | Matt Jacobson <mhjacobson@me.com> | 2022-08-06 01:01:35 -0400 |
|---|---|---|
| committer | Matt Jacobson <mhjacobson@me.com> | 2022-11-10 02:10:30 -0500 |
| commit | dd9f7963e434a53e8d70f607392ee9abf76f1d99 (patch) | |
| tree | 227aa315ef6427466185d5b5ac37eb7acc67fd74 /clang/lib/CodeGen/CodeGenFunction.h | |
| parent | 18df04c944593e53705f64fd2befa804408ab521 (diff) | |
| download | llvm-dd9f7963e434a53e8d70f607392ee9abf76f1d99.zip llvm-dd9f7963e434a53e8d70f607392ee9abf76f1d99.tar.gz llvm-dd9f7963e434a53e8d70f607392ee9abf76f1d99.tar.bz2 | |
[ObjC] avoid crashing when emitting synthesized getter/setter and ptrdiff_t is smaller than long
On targets where ptrdiff_t is smaller than long, clang crashes when emitting
synthesized getters/setters that call objc_[gs]etProperty. Explicitly emit a
zext/trunc of the ivar offset value (which is defined to long) to ptrdiff_t,
which objc_[gs]etProperty takes.
Add a test using the AVR target, where ptrdiff_t is smaller than long. Test
failed previously and passes now.
Differential Revision: https://reviews.llvm.org/D112049
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.h')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h index 05e5bad..7ef22eb 100644 --- a/clang/lib/CodeGen/CodeGenFunction.h +++ b/clang/lib/CodeGen/CodeGenFunction.h @@ -3974,6 +3974,8 @@ public: llvm::Value *EmitIvarOffset(const ObjCInterfaceDecl *Interface, const ObjCIvarDecl *Ivar); + llvm::Value *EmitIvarOffsetAsPointerDiff(const ObjCInterfaceDecl *Interface, + const ObjCIvarDecl *Ivar); LValue EmitLValueForField(LValue Base, const FieldDecl* Field); LValue EmitLValueForLambdaField(const FieldDecl *Field); |