[cfe-commits] r145015 - in /cfe/trunk: lib/CodeGen/CGDecl.cpp test/CodeGen/asm-label.c
Benjamin Kramer
benny.kra at googlemail.com
Sun Nov 20 13:05:05 PST 2011
Author: d0k
Date: Sun Nov 20 15:05:04 2011
New Revision: 145015
URL: http://llvm.org/viewvc/llvm-project?rev=145015&view=rev
Log:
CodeGen: allow __asm renaming on static local variables.
Fixes PR4777.
Modified:
cfe/trunk/lib/CodeGen/CGDecl.cpp
cfe/trunk/test/CodeGen/asm-label.c
Modified: cfe/trunk/lib/CodeGen/CGDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGDecl.cpp?rev=145015&r1=145014&r2=145015&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGDecl.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGDecl.cpp Sun Nov 20 15:05:04 2011
@@ -11,6 +11,7 @@
//
//===----------------------------------------------------------------------===//
+#include "CGCXXABI.h"
#include "CGDebugInfo.h"
#include "CodeGenFunction.h"
#include "CodeGenModule.h"
@@ -177,7 +178,14 @@
QualType Ty = D.getType();
assert(Ty->isConstantSizeType() && "VLAs can't be static");
- std::string Name = GetStaticDeclName(*this, D, Separator);
+ // Use the label if the variable is renamed with the asm-label extension.
+ std::string Name;
+ if (D.hasAttr<AsmLabelAttr>()) {
+ llvm::raw_string_ostream Out(Name);
+ CGM.getCXXABI().getMangleContext().mangleName(&D, Out);
+ } else {
+ Name = GetStaticDeclName(*this, D, Separator);
+ }
llvm::Type *LTy = CGM.getTypes().ConvertTypeForMem(Ty);
llvm::GlobalVariable *GV =
Modified: cfe/trunk/test/CodeGen/asm-label.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/asm-label.c?rev=145015&r1=145014&r2=145015&view=diff
==============================================================================
--- cfe/trunk/test/CodeGen/asm-label.c (original)
+++ cfe/trunk/test/CodeGen/asm-label.c Sun Nov 20 15:05:04 2011
@@ -2,11 +2,18 @@
// RUN: %clang_cc1 -triple=i686-apple-darwin9 -emit-llvm %s -o - | FileCheck %s --check-prefix=DARWIN
char *strerror(int) asm("alias");
+int x __asm("foo");
-void test(void)
-{
- strerror(-1);
+int *test(void) {
+ static int y __asm("bar");
+ strerror(-1);
+ return &y;
}
+// LINUX: @bar = internal global i32 0
+// LINUX: @foo = common global i32 0
// LINUX: declare i8* @alias(i32)
+
+// DARWIN: @"\01bar" = internal global i32 0
+// DARWIN: @"\01foo" = common global i32 0
// DARWIN: declare i8* @"\01alias"(i32)
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