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Propagate calling convention for aliases and weakrefs. 

llvm-svn: 165343
This commit is contained in:
Alex Rosenberg 2012-10-05 23:12:53 +00:00
parent eba9c5c259
commit ba036126cf
2 changed files with 26 additions and 9 deletions
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5
clang/lib/CodeGen/CodeGenModule.cpp
View File

@ -843,7 +843,8 @@ llvm::Constant *CodeGenModule::GetWeakRefReference(const ValueDecl *VD) {
llvm::Constant *Aliasee;
if (isa<llvm::FunctionType>(DeclTy))
Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy, GlobalDecl(),
Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy,
GlobalDecl(cast<FunctionDecl>(VD)),
/*ForVTable=*/false);
else
Aliasee = GetOrCreateLLVMGlobal(AA->getAliasee(),
@ -1929,7 +1930,7 @@ void CodeGenModule::EmitAliasDefinition(GlobalDecl GD) {
// if a deferred decl.
llvm::Constant *Aliasee;
if (isa<llvm::FunctionType>(DeclTy))
Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy, GlobalDecl(),
Aliasee = GetOrCreateLLVMFunction(AA->getAliasee(), DeclTy, GD,
/*ForVTable=*/false);
else
Aliasee = GetOrCreateLLVMGlobal(AA->getAliasee(),

30
clang/test/CodeGen/alias.c
View File

@ -1,24 +1,25 @@
// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple i386-pc-linux-gnu -emit-llvm -o - %s | FileCheck -check-prefix=CHECKBASIC %s
// RUN: %clang_cc1 -triple armv7a-eabi -mfloat-abi hard -emit-llvm -o - %s | FileCheck -check-prefix=CHECKCC %s
int g0;
// CHECK: @g0 = common global i32 0
// CHECKBASIC: @g0 = common global i32 0
static int bar1 = 42;
// CHECK: @bar1 = internal global i32 42
// CHECKBASIC: @bar1 = internal global i32 42
extern int g1;
extern int g1 __attribute((alias("g0")));
// CHECK: @g1 = alias i32* @g0
// CHECKBASIC: @g1 = alias i32* @g0
void f0(void) { }
extern void f1(void);
extern void f1(void) __attribute((alias("f0")));
// CHECK: @f1 = alias void ()* @f0
// CHECK: define void @f0() nounwind {
// CHECKBASIC: @f1 = alias void ()* @f0
// CHECKBASIC: define void @f0() nounwind {
// Make sure that aliases cause referenced values to be emitted.
// PR3200
static inline int foo1() { return 0; }
// CHECK: define internal i32 @foo1()
// CHECKBASIC: define internal i32 @foo1()
int foo() __attribute__((alias("foo1")));
int bar() __attribute__((alias("bar1")));
@ -28,3 +29,18 @@ void test7() { test6(); } // test6 is emitted as extern.
// test6 changes to alias.
int test6() __attribute__((alias("test7")));
static int inner(int a) { return 0; }
static int inner_weak(int a) { return 0; }
extern __typeof(inner) inner_a __attribute__((alias("inner")));
static __typeof(inner_weak) inner_weak_a __attribute__((weakref, alias("inner_weak")));
// CHECKCC: @inner_a = alias i32 (i32)* @inner
// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner(i32 %a) nounwind {
int outer(int a) { return inner(a); }
// CHECKCC: define arm_aapcs_vfpcc i32 @outer(i32 %a) nounwind {
// CHECKCC: %call = call arm_aapcs_vfpcc i32 @inner(i32 %0)
int outer_weak(int a) { return inner_weak_a(a); }
// CHECKCC: define arm_aapcs_vfpcc i32 @outer_weak(i32 %a) nounwind {
// CHECKCC: %call = call arm_aapcs_vfpcc i32 @inner_weak(i32 %0)
// CHECKCC: define internal arm_aapcs_vfpcc i32 @inner_weak(i32 %a) nounwind {