llvm-6502/test/MC/COFF/bss_section.ll

; RUN: llc -mtriple i386-pc-win32 < %s | FileCheck %s

%struct.foo = type { i32, i32 }

@"\01?thingy@@3Ufoo@@B" = global %struct.foo zeroinitializer, align 4
; CHECK: .bss

@thingy_linkonce = linkonce_odr global %struct.foo zeroinitializer, align 4
; CHECK: .section .bss,"bw",discard,_thingy_linkonce
[-cxx-abi microsoft] Stick zero initialized symbols into the .bss section for COFF Summary: We need to do two things: - Initialize BSSSection in MCObjectFileInfo::InitCOFFMCObjectFileInfo - Teach TargetLoweringObjectFileCOFF::SelectSectionForGlobal what to do with it This fixes PR16861. Reviewers: rnk Reviewed By: rnk CC: llvm-commits Differential Revision: http://llvm-reviews.chandlerc.com/D1361 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188244 91177308-0d34-0410-b5e6-96231b3b80d8 2013-08-13 01:23:53 +00:00			`; RUN: llc -mtriple i386-pc-win32 < %s \| FileCheck %s`

			`%struct.foo = type { i32, i32 }`

			`@"\01?thingy@@3Ufoo@@B" = global %struct.foo zeroinitializer, align 4`
			`; CHECK: .bss`
MC COFF: Emit the 'b' section flag for .bss sections in GNU assembly Without this, assembling clang's disassembly would produce an object file with the IMAGE_SCN_CNT_INITIALIZED_DATA section characteristic rather than the uninitialized one. link.exe would warn when merging comdats with different flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197529 91177308-0d34-0410-b5e6-96231b3b80d8 2013-12-17 22:12:40 +00:00
			`@thingy_linkonce = linkonce_odr global %struct.foo zeroinitializer, align 4`
			`; CHECK: .section .bss,"bw",discard,_thingy_linkonce`