Files
clang-p2996/clang/test/CodeGenCXX/pragma-weak.cpp
Hans Wennborg c9bd88e681 Remove the -cxx-abi command-line flag.
This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples,
Itanium otherwise. It's no longer possible to do weird combinations.

To be able to run a test with a specific ABI without constraining it to a
specific triple, new substitutions are added to lit: %itanium_abi_triple and
%ms_abi_triple can be used to get the current target triple adjusted to the
desired ABI. For example, if the test suite is running with the i686-pc-win32
target, %itanium_abi_triple will expand to i686-pc-mingw32.

Differential Revision: http://llvm-reviews.chandlerc.com/D2545

llvm-svn: 199250
2014-01-14 19:35:09 +00:00

32 lines
871 B
C++

// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
#pragma weak zex
int zex;
// GCC produces a weak symbol for this because it matches mangled names.
// Different c++ ABIs may or may not mangle this, so we produce a strong
// symbol.
// CHECK: @zex = global i32
#pragma weak foo
struct S { void foo(); };
void S::foo() {}
// CHECK-LABEL: define {{.*}}void @_ZN1S3fooEv(
#pragma weak zed
namespace bar { void zed() {} }
// CHECK-LABEL: define void @_ZN3bar3zedEv(
#pragma weak bah
void bah() {}
// CHECK-LABEL: define void @_Z3bahv(
#pragma weak baz
extern "C" void baz() {}
// CHECK-LABEL: define weak void @baz(
#pragma weak _Z3baxv
void bax() {}
// GCC produces a weak symbol for this one, but it doesn't look like a good
// idea to expose the mangling to the pragma unless we really have to.
// CHECK-LABEL: define void @_Z3baxv(