maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/clang/test/CodeGen/attr-weak-import.c

27 lines
579 B
C
Raw Normal View History

llvm-gcc treats a tentative definition with a previous (or follow up) extern declaration with weak_import as an actual definition. make clang follows this behavior. // rdar://9538608 llvm-gcc treats an extern declaration with weak_import llvm-svn: 133450
2011-06-21 01:50:03 +08:00
// RUN: %clang_cc1 -triple x86_64-darwin-apple -emit-llvm -o - %s | FileCheck %s
// rdar://9538608
extern int A __attribute__((weak_import));
int A;
extern int B __attribute__((weak_import));
extern int B;
int C;
extern int C __attribute__((weak_import));
extern int D __attribute__((weak_import));
extern int D __attribute__((weak_import));
int D;
extern int E __attribute__((weak_import));
int E;
extern int E __attribute__((weak_import));
// CHECK: @A = global i32
// CHECK-NOT: @B =
Issue warning if weak_import attribute is added to an already declared variable and ignore it. // rdar://9538608 llvm-svn: 133654
2011-06-23 06:08:50 +08:00
// CHECK: @C = common global i32
llvm-gcc treats a tentative definition with a previous (or follow up) extern declaration with weak_import as an actual definition. make clang follows this behavior. // rdar://9538608 llvm-gcc treats an extern declaration with weak_import llvm-svn: 133450
2011-06-21 01:50:03 +08:00
// CHECK: @D = global i32
// CHECK: @E = global i32