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XCore target: add section information. 

Xcore target ABI requires const data that is externally visible
to be handled differently if it has C-language linkage rather than
C++ language linkage.

llvm-svn: 201142
This commit is contained in:
Robert Lytton 2014-02-11 10:34:51 +00:00
parent 8e95d4e075
commit 15abd1881f
2 changed files with 11 additions and 0 deletions
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6
clang/lib/CodeGen/CodeGenModule.cpp
View File

@ -1578,6 +1578,12 @@ CodeGenModule::GetOrCreateLLVMGlobal(StringRef MangledName,
if (AddrSpace != Ty->getAddressSpace()) if (AddrSpace != Ty->getAddressSpace())
return llvm::ConstantExpr::getAddrSpaceCast(GV, Ty); return llvm::ConstantExpr::getAddrSpaceCast(GV, Ty);
if (getTarget().getTriple().getArch() == llvm::Triple::xcore &&
D->getLanguageLinkage() == CLanguageLinkage &&
D->getType().isConstant(Context) &&
isExternallyVisible(D->getLinkageAndVisibility().getLinkage()))
GV->setSection(".cp.rodata");
return GV; return GV;
} }

5
clang/test/CodeGen/xcore-abi.c
View File

@ -10,8 +10,13 @@ _Static_assert(_Alignof(double) == 4, "alignof double is wrong");
// CHECK: target triple = "xcore-unknown-unknown" // CHECK: target triple = "xcore-unknown-unknown"
// CHECK: @cgx = external constant i32, section ".cp.rodata"
extern const int cgx;
int fcgx() { return cgx;}
// CHECK: @g1 = global i32 0, align 4 // CHECK: @g1 = global i32 0, align 4
int g1; int g1;
// CHECK: @cg1 = constant i32 0, section ".cp.rodata", align 4
const int cg1;
#include <stdarg.h> #include <stdarg.h>
struct x { int a[5]; }; struct x { int a[5]; };