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Fix a use of an undefined value (the linkage).

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217445 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2014-09-09 14:52:27 +00:00
parent ec8b573e54
commit c787184012
3 changed files with 8 additions and 1 deletions
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3
lib/Linker/LinkModules.cpp
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@ -705,6 +705,9 @@ bool ModuleLinker::getLinkageResult(GlobalValue *Dest, const GlobalValue *Src,
if (DestIsDeclaration) {
LinkFromSrc = true;
LT = Src->getLinkage();
} else {
LinkFromSrc = false;
LT = Dest->getLinkage();
}
} else if (Dest->hasExternalWeakLinkage()) {
// If the Dest is weak, use the source linkage.

2
test/Linker/Inputs/linkage2.ll
View File

@ -1 +1,3 @@
@test1_a = weak global i8 1
@test2_a = external dllimport global i8

4
test/Linker/linkage2.ll
View File

@ -2,5 +2,7 @@
; RUN: llvm-link %p/Inputs/linkage2.ll %s -S | FileCheck %s
@test1_a = common global i8 0
; CHECK: @test1_a = common global i8 0
@test2_a = global i8 0
; CHECK: @test2_a = global i8 0