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two changes:

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1) nuke ConstDataCoalSection, which is dead.
2) revise my previous patch for rdar://8018335,
  which was completely wrong.  Specifically, it doesn't 
  make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS,
  because it is for readonly data.  templates (it turns out)
  go to const_coal_nt.  The real fix for rdar://8018335 was
  to give ConstTextCoalSection a section kind of ReadOnly 
  instead of Text.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112496 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-08-30 18:12:35 +00:00
parent 7e701979ad
commit 1875ce4ad9
2 changed files with 2 additions and 7 deletions
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5
lib/CodeGen/TargetLoweringObjectFileImpl.cpp
View File

@@ -518,11 +518,6 @@ void TargetLoweringObjectFileMachO::Initialize(MCContext &Ctx,
SectionKind::getText()); SectionKind::getText());
ConstTextCoalSection ConstTextCoalSection
= getContext().getMachOSection("__TEXT", "__const_coal", = getContext().getMachOSection("__TEXT", "__const_coal",
MCSectionMachO::S_COALESCED |
MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS,
SectionKind::getText());
ConstDataCoalSection
= getContext().getMachOSection("__DATA","__const_coal",
MCSectionMachO::S_COALESCED, MCSectionMachO::S_COALESCED,
SectionKind::getReadOnly()); SectionKind::getReadOnly());
ConstDataSection // .const_data ConstDataSection // .const_data

4
test/CodeGen/X86/global-sections.ll
View File

@@ -20,7 +20,7 @@
; TODO: linux drops this into .rodata, we drop it into ".gnu.linkonce.r.G2" ; TODO: linux drops this into .rodata, we drop it into ".gnu.linkonce.r.G2"
; DARWIN: .section __TEXT,__const_coal,coalesced,pure_instructions ; DARWIN: .section __TEXT,__const_coal,coalesced
; DARWIN: _G2: ; DARWIN: _G2:
; DARWIN: .long 42 ; DARWIN: .long 42
@@ -85,7 +85,7 @@
; LINUX: .byte 1 ; LINUX: .byte 1
; LINUX: .size G6, 1 ; LINUX: .size G6, 1
; DARWIN: .section __TEXT,__const_coal,coalesced,pure_instructions ; DARWIN: .section __TEXT,__const_coal,coalesced
; DARWIN: .globl _G6 ; DARWIN: .globl _G6
; DARWIN: .weak_definition _G6 ; DARWIN: .weak_definition _G6
; DARWIN:_G6: ; DARWIN:_G6: