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[NVPTX] Emit .weak linkage for link_once, weak, available_externally, and common linkage 

llvm-svn: 211941
This commit is contained in:
Justin Holewinski 2014-06-27 18:35:56 +00:00
parent 73cb5de546
commit d73767a80a
2 changed files with 13 additions and 0 deletions
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4
llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp
View File

@ -1367,6 +1367,10 @@ void NVPTXAsmPrinter::printModuleLevelGV(const GlobalVariable *GVar,
O << ".visible "; O << ".visible ";
else else
O << ".extern "; O << ".extern ";
} else if (GVar->hasLinkOnceLinkage() || GVar->hasWeakLinkage() ||
GVar->hasAvailableExternallyLinkage() ||
GVar->hasCommonLinkage()) {
O << ".weak ";
} }
if (llvm::isTexture(*GVar)) { if (llvm::isTexture(*GVar)) {

9
llvm/test/CodeGen/NVPTX/weak-global.ll Normal file
View File

@ -0,0 +1,9 @@
; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s
; CHECK: .weak .global .align 4 .u32 g
@g = common addrspace(1) global i32 zeroinitializer
define i32 @func0() {
%val = load i32 addrspace(1)* @g
ret i32 %val
}