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Don't create new comdats in CodeGen.

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This patch stops the implicit creation of comdats during codegen.

Clang now sets the comdat explicitly when it is required. With this patch clang and gcc
now produce the same result in pr19848.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@226038 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-01-14 20:55:48 +00:00
parent f7db2526ad
commit 33f5127540
15 changed files with 63 additions and 137 deletions
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10
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -480,13 +480,13 @@ static unsigned getEncodedLinkage(const GlobalValue &GV) {
case GlobalValue::ExternalLinkage:
return 0;
case GlobalValue::WeakAnyLinkage:
return 1;
return 16;
case GlobalValue::AppendingLinkage:
return 2;
case GlobalValue::InternalLinkage:
return 3;
case GlobalValue::LinkOnceAnyLinkage:
return 4;
return 18;
case GlobalValue::ExternalWeakLinkage:
return 7;
case GlobalValue::CommonLinkage:
@ -494,9 +494,9 @@ static unsigned getEncodedLinkage(const GlobalValue &GV) {
case GlobalValue::PrivateLinkage:
return 9;
case GlobalValue::WeakODRLinkage:
return 10;
return 17;
case GlobalValue::LinkOnceODRLinkage:
return 11;
return 19;
case GlobalValue::AvailableExternallyLinkage:
return 12;
}
@ -629,7 +629,7 @@ static void WriteModuleInfo(const Module *M, const ValueEnumerator &VE,
Log2_32_Ceil(MaxGlobalType+1)));
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 1)); // Constant.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::VBR, 6)); // Initializer.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 4)); // Linkage.
Abbv->Add(BitCodeAbbrevOp(BitCodeAbbrevOp::Fixed, 5)); // Linkage.
if (MaxAlignment == 0) // Alignment.
Abbv->Add(BitCodeAbbrevOp(0));
else {