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objective-c IRGen: fixes a crash when method type is being mangled 

when an argument type size is 0. // rdar://11777609, PR13229

llvm-svn: 159472
This commit is contained in:
Fariborz Jahanian 2012-06-29 22:54:56 +00:00
parent 7b12b87096
commit 271b8d43ce
2 changed files with 23 additions and 4 deletions
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8
clang/lib/AST/ASTContext.cpp
View File

@ -4190,8 +4190,8 @@ bool ASTContext::getObjCEncodingForFunctionDecl(const FunctionDecl *Decl,
QualType PType = (*PI)->getType();
CharUnits sz = getObjCEncodingTypeSize(PType);
if (sz.isZero())
return true;
continue;
assert (sz.isPositive() &&
"getObjCEncodingForFunctionDecl - Incomplete param type");
ParmOffset += sz;
@ -4259,8 +4259,8 @@ bool ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl,
QualType PType = (*PI)->getType();
CharUnits sz = getObjCEncodingTypeSize(PType);
if (sz.isZero())
return true;
continue;
assert (sz.isPositive() &&
"getObjCEncodingForMethodDecl - Incomplete param type");
ParmOffset += sz;

19
clang/test/CodeGenObjC/encode-test-6.m Normal file
View File

@ -0,0 +1,19 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o %t %s
// RUN: FileCheck < %t %s
// rdar://11777609
typedef struct {} Z;
@interface A
-(void)bar:(Z)a;
-(void)foo:(Z)a : (char*)b : (Z)c : (double) d;
@end
@implementation A
-(void)bar:(Z)a {}
-(void)foo:(Z)a: (char*)b : (Z)c : (double) d {}
@end
// CHECK: internal global [14 x i8] c"v16@0:8{?=}16
// CHECK: internal global [26 x i8] c"v32@0:8{?=}16*16{?=}24d24