llvm-6502/elf-comdat.ll at af3ec2cfd49fcde2a8ba44e2bd1557bc8d2adab8 - llvm-6502 - Applefritter: Git

6502/llvm-6502

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Rafael Espindola f907a26bc2 Change the .ll syntax for comdats and add a syntactic sugar.

In order to make comdats always explicit in the IR, we decided to make
the syntax a bit more compact for the case of a GlobalObject in a
comdat with the same name.

Just dropping the $name causes problems for

@foo = globabl i32 0, comdat
$bar = comdat ...

and

declare void @foo() comdat
$bar = comdat ...

So the syntax is changed to

@g1 = globabl i32 0, comdat($c1)
@g2 = globabl i32 0, comdat

and

declare void @foo() comdat($c1)
declare void @foo() comdat

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225302 91177308-0d34-0410-b5e6-96231b3b80d8

2015-01-06 22:55:16 +00:00

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 ; RUN: llc -mtriple x86_64-pc-linux-gnu < %s | FileCheck %s
 $f = comdat any
 @v = global i32 0, comdat($f)
 define void @f() comdat($f) {
   ret void
 }
 ; CHECK: .section        .text.f,"axG",@progbits,f,comdat
 ; CHECK: .globl  f
 ; CHECK: .section        .bss.v,"aGw",@nobits,f,comdat
 ; CHECK: .globl  v