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llvm-project/clang/test/CodeGen/attr-weak-import.c

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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 =
Recommit #2 "[Driver] Default to -fno-common for all targets" After a first attempt to fix the test-suite failures, my first recommit caused the same failures again. I had updated CMakeList.txt files of tests that needed -fcommon, but it turns out that there are also Makefiles which are used by some bots, so I've updated these Makefiles now too. See the original commit message for more details on this change: 0a9fc9233e172601e26381810d093e02ef410f65
2020-03-10 03:25:24 +08:00
// CHECK: @C = 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