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Provide a precise builtin declaration for objc_msgSend 

to avoid a bogus warning. Fixes //rdar: //8632525

llvm-svn: 118451
This commit is contained in:
Fariborz Jahanian 2010-11-08 22:53:18 +00:00
parent 99adaf4cc1
commit 94ad274c24
4 changed files with 13 additions and 5 deletions
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7
clang/include/clang/Basic/Builtins.def
View File

@ -29,6 +29,8 @@
// d -> double // d -> double
// z -> size_t // z -> size_t
// F -> constant CFString // F -> constant CFString
// G -> id
// H -> SEL
// a -> __builtin_va_list // a -> __builtin_va_list
// A -> "reference" to __builtin_va_list // A -> "reference" to __builtin_va_list
// V -> Vector, following num elements and a base type. // V -> Vector, following num elements and a base type.
@ -559,11 +561,8 @@ LIBBUILTIN(_exit, "vi", "fr", "unistd.h")
// POSIX setjmp.h // POSIX setjmp.h
LIBBUILTIN(_longjmp, "vJi", "fr", "setjmp.h") LIBBUILTIN(_longjmp, "vJi", "fr", "setjmp.h")
LIBBUILTIN(siglongjmp, "vSJi", "fr", "setjmp.h") LIBBUILTIN(siglongjmp, "vSJi", "fr", "setjmp.h")
// FIXME: This type isn't very correct, it should be
// id objc_msgSend(id, SEL) // id objc_msgSend(id, SEL)
// but we need new type letters for that. LIBBUILTIN(objc_msgSend, "GGH.", "f", "objc/message.h")
LIBBUILTIN(objc_msgSend, "v*.", "f", "objc/message.h")
BUILTIN(__builtin_objc_memmove_collectable, "v*v*vC*z", "nF") BUILTIN(__builtin_objc_memmove_collectable, "v*v*vC*z", "nF")
// Builtin math library functions // Builtin math library functions

6
clang/lib/AST/ASTContext.cpp
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@ -5384,6 +5384,12 @@ static QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context,
case 'F': case 'F':
Type = Context.getCFConstantStringType(); Type = Context.getCFConstantStringType();
break; break;
case 'G':
Type = Context.getObjCIdType();
break;
case 'H':
Type = Context.getObjCSelType();
break;
case 'a': case 'a':
Type = Context.getBuiltinVaListType(); Type = Context.getBuiltinVaListType();
assert(!Type.isNull() && "builtin va list type not initialized!"); assert(!Type.isNull() && "builtin va list type not initialized!");

2
clang/test/CodeGenObjC/implicit-objc_msgSend.m
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@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -emit-llvm -o %t %s // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -emit-llvm -o %t %s
// RUN: grep -F 'declare i8* @objc_msgSend(...)' %t // RUN: grep -F 'declare i8* @objc_msgSend(i8*, i8*, ...)' %t
typedef struct objc_selector *SEL; typedef struct objc_selector *SEL;
id f0(id x, SEL s) { id f0(id x, SEL s) {

3
clang/test/SemaObjC/builtin_objc_msgSend.m Normal file
View File

@ -0,0 +1,3 @@
// RUN: %clang_cc1 %s -fsyntax-only -verify
// rdar: // 8632525
extern id objc_msgSend(id self, SEL op, ...);