Change CodeGenModule to rely on the Module's symbol table instead of
shadowing it in the GlobalDeclMap. Eliminates the string-uniquing
requirement for mangled names, which should help C++ codegen times a little.
Forces us to do string lookups instead of pointer lookups, which might hurt
codegen times a little across the board. We'll see how it plays out.
Removing the string-uniquing requirement implicitly fixes any bugs like
PR6635 which arose from the fact that we had multiple uniquing tables for
different kinds of identifiers.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99012 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenCXX/attr.cpp b/test/CodeGenCXX/attr.cpp
index 4c781c6..d689a4f 100644
--- a/test/CodeGenCXX/attr.cpp
+++ b/test/CodeGenCXX/attr.cpp
@@ -1,5 +1,7 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
+// CHECK: @test2 = alias i32 ()* @_Z5test1v
+
// CHECK: define i32 @_Z3foov() nounwind align 1024
int foo() __attribute__((aligned(1024)));
int foo() { }
@@ -18,3 +20,9 @@
// CHECK: define void @_ZN1C4bar3Ev(%class.C* %this) nounwind align 1024
void C::bar3() { }
+
+// PR6635
+// CHECK: define i32 @_Z5test1v()
+int test1() { return 10; }
+// CHECK at top of file
+extern "C" int test2() __attribute__((alias("_Z5test1v")));