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author | Anton Korobeynikov <asl@math.spbu.ru> | 2007-09-06 17:21:48 +0000 |
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committer | Anton Korobeynikov <asl@math.spbu.ru> | 2007-09-06 17:21:48 +0000 |
commit | 6d2c506cce46d4edcc314ca363b5e4ec4584cc38 (patch) | |
tree | ad43808ab78f72dee7eafe3fea2f5e5e9247068a /lib | |
parent | a1c1e78ab8e0bf30d31fd76e4088af2b8638fe90 (diff) | |
download | external_llvm-6d2c506cce46d4edcc314ca363b5e4ec4584cc38.zip external_llvm-6d2c506cce46d4edcc314ca363b5e4ec4584cc38.tar.gz external_llvm-6d2c506cce46d4edcc314ca363b5e4ec4584cc38.tar.bz2 |
Proper handle case, when aliasee is external weak symbol referenced only by alias itself.
Also, fix a case, when target doesn't have weak symbols supported.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41746 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/CodeGen/AsmPrinter.cpp | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp index 9387847..fa6f569 100644 --- a/lib/CodeGen/AsmPrinter.cpp +++ b/lib/CodeGen/AsmPrinter.cpp @@ -132,13 +132,11 @@ bool AsmPrinter::doFinalization(Module &M) { I!=E; ++I) { std::string Name = Mang->getValueName(I); std::string Target; + + const GlobalValue *GV = cast<GlobalValue>(I->getAliasedGlobal()); + Target = Mang->getValueName(GV); - if (const GlobalValue *GV = I->getAliasedGlobal()) - Target = Mang->getValueName(GV); - else - assert(0 && "Unsupported aliasee"); - - if (I->hasExternalLinkage()) + if (I->hasExternalLinkage() || !TAI->getWeakRefDirective()) O << "\t.globl\t" << Name << "\n"; else if (I->hasWeakLinkage()) O << TAI->getWeakRefDirective() << Name << "\n"; @@ -146,6 +144,15 @@ bool AsmPrinter::doFinalization(Module &M) { assert(0 && "Invalid alias linkage"); O << TAI->getSetDirective() << Name << ", " << Target << "\n"; + + // If the aliasee has external weak linkage it can be referenced only by + // alias itself. In this case it can be not in ExtWeakSymbols list. Emit + // weak reference in such case. + if (GV->hasExternalWeakLinkage()) + if (TAI->getWeakRefDirective()) + O << TAI->getWeakRefDirective() << Target << "\n"; + else + O << "\t.globl\t" << Target << "\n"; } } |