aboutsummaryrefslogtreecommitdiffstats
path: root/lib
diff options
context:
space:
mode:
authorAnton Korobeynikov <asl@math.spbu.ru>2007-09-06 17:21:48 +0000
committerAnton Korobeynikov <asl@math.spbu.ru>2007-09-06 17:21:48 +0000
commit6d2c506cce46d4edcc314ca363b5e4ec4584cc38 (patch)
treead43808ab78f72dee7eafe3fea2f5e5e9247068a /lib
parenta1c1e78ab8e0bf30d31fd76e4088af2b8638fe90 (diff)
downloadexternal_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.cpp19
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";
}
}