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Support multiple COFF sections with the same name but different COMDAT.

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This is the first step to fix pr17918.

It extends the .section directive a bit, inspired by what the ELF one looks
like. The problem with using linkonce is that given

.section foo
.linkonce....

.section foo
.linkonce

we would already have switched sections when getting to .linkonce. The cleanest
solution seems to be to add the comdat information in the .section itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195148 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-11-19 19:52:52 +00:00
parent 0d63cf0812
commit 72935dd909
8 changed files with 355 additions and 49 deletions
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3
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
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@ -733,6 +733,7 @@ getExplicitSectionGlobal(const GlobalValue *GV, SectionKind Kind,
return getContext().getCOFFSection(Name,
Characteristics,
Kind,
"",
Selection);
}
@ -768,7 +769,7 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
Characteristics |= COFF::IMAGE_SCN_LNK_COMDAT;
return getContext().getCOFFSection(Name.str(), Characteristics,
Kind, COFF::IMAGE_COMDAT_SELECT_ANY);
Kind, "", COFF::IMAGE_COMDAT_SELECT_ANY);
}
if (Kind.isText())