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c8a1169c93
This new IR facility allows us to represent the object-file semantic of a COMDAT group. COMDATs allow us to tie together sections and make the inclusion of one dependent on another. This is required to implement features like MS ABI VFTables and optimizing away certain kinds of initialization in C++. This functionality is only representable in COFF and ELF, Mach-O has no similar mechanism. Differential Revision: http://reviews.llvm.org/D4178 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211920 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
414 B
LLVM
21 lines
414 B
LLVM
target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32"
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target triple = "i686-pc-windows-msvc"
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$foo = comdat largest
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@foo = global i64 43, comdat $foo
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define i32 @bar() comdat $foo {
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ret i32 43
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}
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$qux = comdat largest
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@qux = global i32 13, comdat $qux
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@in_unselected_group = global i32 13, comdat $qux
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define i32 @baz() comdat $qux {
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ret i32 13
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}
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$any = comdat any
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@any = global i64 7, comdat $any
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