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Set normal LLVM function attributes on global initializer functions 

Otherwise -fno-omit-frame-pointer and other flags like it aren't
applied.

Basic idea taken from Gao's patch, thanks!

Differential Revision: http://reviews.llvm.org/D9203

llvm-svn: 235537
This commit is contained in:
Reid Kleckner 2015-04-22 19:37:32 +00:00
parent 61ad9d84df
commit 787dc438c9
3 changed files with 12 additions and 3 deletions
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2
clang/lib/CodeGen/CGDeclCXX.cpp
View File

@ -259,6 +259,8 @@ llvm::Function *CodeGenModule::CreateGlobalInitOrDestructFunction(
Fn->setSection(Section);
}
SetLLVMFunctionAttributes(nullptr, getTypes().arrangeNullaryFunction(), Fn);
Fn->setCallingConv(getRuntimeCC());
if (!getLangOpts().Exceptions)

2
clang/test/CodeGenCXX/global-dtor-no-atexit.cpp
View File

@ -43,4 +43,4 @@ void func() {
static A a1, a2;
}
// CHECK: attributes [[NUW]] = { nounwind }
// CHECK: attributes [[NUW]] = { nounwind{{.*}} }

11
clang/test/CodeGenCXX/global-init.cpp
View File

@ -1,5 +1,8 @@
// RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm -fexceptions %s -o - |FileCheck %s
// RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm %s -o - |FileCheck -check-prefix CHECK-NOEXC %s
// RUN: %clang_cc1 -triple=x86_64-apple-darwin10 -emit-llvm \
// RUN: -momit-leaf-frame-pointer -mdisable-fp-elim %s -o - \
// RUN: | FileCheck -check-prefix CHECK-FP %s
struct A {
A();
@ -195,11 +198,15 @@ namespace test7 {
// CHECK-NEXT: sub
// CHECK-NEXT: store i32 {{.*}}, i32* @_ZN5test1L1yE
// CHECK: define internal void @_GLOBAL__sub_I_global_init.cpp() section "__TEXT,__StaticInit,regular,pure_instructions" {
// CHECK: define internal void @_GLOBAL__sub_I_global_init.cpp() #{{[0-9]+}} section "__TEXT,__StaticInit,regular,pure_instructions" {
// CHECK: call void [[TEST1_Y_INIT]]
// CHECK: call void [[TEST1_Z_INIT]]
// rdar://problem/8090834: this should be nounwind
// CHECK-NOEXC: define internal void @_GLOBAL__sub_I_global_init.cpp() [[NUW:#[0-9]+]] section "__TEXT,__StaticInit,regular,pure_instructions" {
// CHECK-NOEXC: attributes [[NUW]] = { nounwind }
// CHECK-NOEXC: attributes [[NUW]] = { nounwind{{.*}} }
// PR21811: attach the appropriate attribute to the global init function
// CHECK-FP: define internal void @_GLOBAL__sub_I_global_init.cpp() [[NUX:#[0-9]+]] section "__TEXT,__StaticInit,regular,pure_instructions" {
// CHECK-FP: attributes [[NUX]] = { nounwind {{.*}}"no-frame-pointer-elim-non-leaf"{{.*}} }