Fixed version of 118639 with an extra assert to catch similar problems
earlier. Implicit bool -> int conversions are evil!

llvm-svn: 118651

COFF: Add IMAGE_SCN_MEM_READ to text sections.

There are currently 100 references to COFF::IMAGE_SCN in 6 files
and 11 different functions. Section to attribute mapping really
needs to happen in one

COFF: Add IMAGE_SCN_MEM_READ to text sections.

There are currently 100 references to COFF::IMAGE_SCN in 6 files
and 11 different functions. Section to attribute mapping really
needs to happen in one place to avoid problems like this.

llvm-svn: 117473

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Fix whitespace.

llvm-svn: 117472

lib/CodeGen/TargetLoweringObjectFileImpl.cpp: Tweak to emit ".{section}${name}" instead of ".{section}$linkonce_{name}" for linkonce sections.

It seems GNU ld/PECOFF relies on section names, linking

lib/CodeGen/TargetLoweringObjectFileImpl.cpp: Tweak to emit ".{section}${name}" instead of ".{section}$linkonce_{name}" for linkonce sections.

It seems GNU ld/PECOFF relies on section names, linking with g++'s libstdc++.a would fail.

llvm-svn: 116791

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Do not check that the bodies of two defs of same linkonce global are the same.
Such a check does not make any sense in presense of inlining and other compiler-dependent stuff.
This should fix bunch o

Do not check that the bodies of two defs of same linkonce global are the same.
Such a check does not make any sense in presense of inlining and other compiler-dependent stuff.
This should fix bunch of warnings on mingw32.

llvm-svn: 116113

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Revert r114997. It was causing a failure on darwin10-selfhost.

llvm-svn: 115002

Fix a FIXME. _foo.eh symbols are currently always exported so that the linker
knows about them. This is not necessary on 10.6 and later.

llvm-svn: 114997

the latest assembler that runs on powerpc 10.4 machines doesn't
support aligned comm. Detect when compiling for 10.4 and don't
emit an alignment for comm. THis will hopefully fix PR8198.

llvm-svn:

the latest assembler that runs on powerpc 10.4 machines doesn't
support aligned comm. Detect when compiling for 10.4 and don't
emit an alignment for comm. THis will hopefully fix PR8198.

llvm-svn: 114817

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two changes:
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_

two changes:
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.

llvm-svn: 112496

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fix the definitions of ConstTextCoalSection/ConstDataCoalSection
to keep "Text" in sync with the "pure instructions" section attribute.
Lack of this attribute was preventing the assembler from emitti

fix the definitions of ConstTextCoalSection/ConstDataCoalSection
to keep "Text" in sync with the "pure instructions" section attribute.
Lack of this attribute was preventing the assembler from emitting
multibyte noops instructions for templates (and inlines, and other
coalesced stuff) and was causing the assembler to mismatch .o files.

This fixes rdar://8018335

llvm-svn: 108461

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Fix a major regression on COFF targets introduced by r103267: 'discardable' section means that it is used only during the program load and can be discarded afterwards.
This way *only* debug sections

Fix a major regression on COFF targets introduced by r103267: 'discardable' section means that it is used only during the program load and can be discarded afterwards.
This way *only* debug sections can be discarded, but not the opposite. Seems like the copy-and-pasto from ELF code, since there it contains the reverse flag ('alloc').

llvm-svn: 107658

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MC: Move COFF enumeration constants to llvm/Support/COFF.h, patch by Michael
Spencer!

llvm-svn: 107418

Revert r107205 and r107207.

llvm-svn: 107215

Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "o

Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
l_objc_msgSend_fixup_alloc:
.quad _objc_msgSend_fixup
.quad L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

llvm-svn: 107205

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Add support for initialized global data for darwin tls. Update comments
and testcases accordingly.

llvm-svn: 104635

Add full bss data support for darwin tls variables.

llvm-svn: 104414

More data/parsing support for tls directives. Add a few more testcases
and cleanup comments as well.

llvm-svn: 103985

Add some section and constant support for darwin TLS.

llvm-svn: 103974

add COFF support for COMDAT sections, patch by Nathan Jeffords!

llvm-svn: 103304

switch MCSectionCOFF from a syntactic to semantic representation,
patch by Peter Housel!

llvm-svn: 103267

add llvm codegen support for -ffunction-sections and -fdata-sections,
patch by Sylvere Teissier!

llvm-svn: 101106

delete a forwarding function.

llvm-svn: 100815

move elf section uniquing to MCContext. Along the way
merge XCore's section into MCSectionELF

llvm-svn: 100812

remove the TargetLoweringObjectFileMachO::getMachoSection
api and update clients to use MCContext instead.

llvm-svn: 100808

move macho section uniquing from MCParser and TLOF to MCContext where
the compiler and asmparser now unique to the same sections. This fixes
rdar://7835021.

llvm-svn: 100807