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Don't drop alignment info on local common symbols.

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- On COFF the .lcomm directive has an alignment argument.
- On ELF we fall back to .local + .comm

Based on a patch by NAKAMURA Takumi.

Fixes PR9337, PR9483 and PR10128.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138976 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2011-09-01 23:04:27 +00:00
parent 7df496d2ad
commit 36a16015ac
19 changed files with 80 additions and 38 deletions
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4
lib/MC/MCNullStreamer.cpp
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@@ -59,8 +59,8 @@ namespace {
virtual void EmitELFSize(MCSymbol *Symbol, const MCExpr *Value) {}
virtual void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {}
virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size) {}
virtual void EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {}
virtual void EmitZerofill(const MCSection *Section, MCSymbol *Symbol = 0,
unsigned Size = 0, unsigned ByteAlignment = 0) {}
virtual void EmitTBSSSymbol(const MCSection *Section, MCSymbol *Symbol,