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when linking globals, make sure to preserve the address space of the global.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52810 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-06-27 03:10:24 +00:00
parent 83b28890d8
commit a534b0f7bf
2 changed files with 17 additions and 4 deletions
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12
lib/Linker/LinkModules.cpp
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@ -575,7 +575,8 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
GlobalVariable *NewDGV =
new GlobalVariable(SGV->getType()->getElementType(),
SGV->isConstant(), SGV->getLinkage(), /*init*/0,
SGV->getName(), Dest);
SGV->getName(), Dest, false,
SGV->getType()->getAddressSpace());
// Propagate alignment, visibility and section info.
CopyGVAttributes(NewDGV, SGV);
@ -599,7 +600,8 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
GlobalVariable *NewDGV =
new GlobalVariable(SGV->getType()->getElementType(),
SGV->isConstant(), SGV->getLinkage(), /*init*/0,
"", Dest);
"", Dest, false,
SGV->getType()->getAddressSpace());
// Set alignment allowing CopyGVAttributes merge it with alignment of SGV.
NewDGV->setAlignment(DGV->getAlignment());
@ -634,7 +636,8 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
GlobalVariable *NewDGV =
new GlobalVariable(SGV->getType()->getElementType(),
DGVar->isConstant(), DGVar->getLinkage(),
/*init*/0, DGVar->getName(), Dest);
/*init*/0, DGVar->getName(), Dest, false,
SGV->getType()->getAddressSpace());
CopyGVAttributes(NewDGV, DGVar);
DGV->replaceAllUsesWith(ConstantExpr::getBitCast(NewDGV,
DGVar->getType()));
@ -1166,7 +1169,8 @@ static bool LinkAppendingVars(Module *M,
// Create the new global variable...
GlobalVariable *NG =
new GlobalVariable(NewType, G1->isConstant(), G1->getLinkage(),
/*init*/0, First->first, M, G1->isThreadLocal());
/*init*/0, First->first, M, G1->isThreadLocal(),
G1->getType()->getAddressSpace());
// Propagate alignment, visibility and section info.
CopyGVAttributes(NG, G1);

9
test/Linker/2008-06-26-AddressSpace.ll Normal file
View File

@ -0,0 +1,9 @@
; Test linking two functions with different prototypes and two globals
; in different modules.
; RUN: llvm-as %s -o %t.foo1.bc -f
; RUN: echo | llvm-as -o %t.foo2.bc -f
; RUN: llvm-link %t.foo2.bc %t.foo1.bc | llvm-dis | grep {addrspace(2)}
; RUN: llvm-link %t.foo1.bc %t.foo2.bc | llvm-dis | grep {addrspace(2)}
; rdar://6038021
@G = global i32 256 addrspace(2)