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Commit Graph

152 Commits

Author SHA1 Message Date
Chris Lattner
e8b2f94ce2 introduce specialized mergable const sectionkinds for elements of size 4/8/16 to
simplify targets.

llvm-svn: 77132
2009-07-26 06:11:33 +00:00
Chris Lattner
b3d6d59c10 Rearrange all the SectionKinds and structure them into a hierarchical
group instead of a bunch of random unrelated ideas.  Provide predicates
to categorize a SectionKind into a group, and use them instead of 
getKind() throughout the code.

This also renames a ton of SectionKinds to be more consistent and
evocative, and adds a huge number of comments on the enums so that
I will hopefully be able to remember how this stuff works long from
now.

llvm-svn: 77129
2009-07-26 05:44:20 +00:00
Chris Lattner
809a525ffa fix isReadOnly predicate to not include data that has to be
writable because of teh dynamic linker.

llvm-svn: 77122
2009-07-26 04:18:10 +00:00
Chris Lattner
f67024bb1c remove a dead enum case.
llvm-svn: 77121
2009-07-26 04:09:02 +00:00
Chris Lattner
5547fd80ad put normal data into .data instead of .data.rel on elf systems.
llvm-svn: 77116
2009-07-26 03:06:11 +00:00
Chris Lattner
9cd489c7f1 finish simplifying DarwinTargetAsmInfo::SelectSectionForGlobal
for now.  Make the section switching directives more consistent
by not including \n and including \t for them all.

llvm-svn: 77107
2009-07-26 01:24:18 +00:00
Chris Lattner
259c4e4a55 simplify some predicates, add isMergableString()
llvm-svn: 77103
2009-07-26 00:50:43 +00:00
Chris Lattner
fda0ca90c1 make SectionKind be a first-class pod struct instead of just
an enum.

llvm-svn: 77096
2009-07-25 23:21:55 +00:00
Chris Lattner
15b3d2039f this is (unfortunately) several changes mixed together:
1. Spell SectionFlags::Writeable as "Writable".
2. Add predicates for deriving SectionFlags from SectionKinds.
3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into
   ELFTargetAsmInfo.
4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the
   BSS bit set (the real fix for PR4619).
5. Fix isSuitableForBSS to not put globals with explicit sections
   set in BSS (which was the reason #4 wasn't fixed earlier).
6. Remove my previous hack for PR4619.

llvm-svn: 77085
2009-07-25 18:57:34 +00:00
Chris Lattner
edbf2e64cb document some invariants.
llvm-svn: 77084
2009-07-25 18:11:58 +00:00
Chris Lattner
50d9b68935 fix some predicates
llvm-svn: 76999
2009-07-24 20:27:11 +00:00
Chris Lattner
89b6f54999 change SectionKindForGlobal from being a public (and
previously virtual) function to being a static function
in the .cpp file.

llvm-svn: 76997
2009-07-24 20:14:10 +00:00
Chris Lattner
3d63455016 make SectionKindForGlobal target independent, and therefore non-virtual.
It's classifications now include elf-specific discriminators.  Targets
that don't have these features (like darwin and pecoff) simply treat
data.rel like data, etc.

llvm-svn: 76993
2009-07-24 19:15:47 +00:00
Chris Lattner
5af94066ee we already know the sectionkind when invoking SelectSectionForGlobal,
pass it in instead of recomputing it.

llvm-svn: 76990
2009-07-24 18:42:53 +00:00
Chris Lattner
cc951ce3cb make SectionForGlobal non-virtual, add a hook for pic16 to do its "address=" hack.
llvm-svn: 76989
2009-07-24 18:34:27 +00:00
Chris Lattner
37abb9f4ba move ELF-specific code into ELFTargetAsmInfo.
llvm-svn: 76976
2009-07-24 17:02:17 +00:00
Chris Lattner
6e4d35f825 make SectionFlagsForGlobal a private static function instead of a public
virtual one.

llvm-svn: 76973
2009-07-24 16:46:50 +00:00
Chris Lattner
4bb9a9a7d3 Replace UniqueSectionForGlobal with getSectionPrefixForUniqueGlobal.
The later doesn't depend on any crazy LLVM IR stuff, and this
pulls the concatenation of prefix with GV name (the root problem behind
PR4584) out one level.

llvm-svn: 76948
2009-07-24 04:49:34 +00:00
Chris Lattner
a82421ce2f document SectionFlags::Named better and make it more easily greppable by
eliminating isNamed.

llvm-svn: 76946
2009-07-24 04:26:19 +00:00
Chris Lattner
13611a24d8 use section flags more correctly.
llvm-svn: 76944
2009-07-24 04:08:17 +00:00
Chris Lattner
b7fcec2e8c remove more bits of small section support.
llvm-svn: 76937
2009-07-24 03:16:53 +00:00
Chris Lattner
09511ed243 Remove SectionKind::Small*. This was only used on mips, and is apparently
a sad mistake that is regretted. :)

llvm-svn: 76935
2009-07-24 03:11:51 +00:00
Dan Gohman
62c8b40b66 Remove the IA-64 backend.
llvm-svn: 76920
2009-07-24 00:30:09 +00:00
Chris Lattner
a3b58f4ecd remove SectionFlags::Small: it is only used on Xcore, and we'll find
a better solution for it in the future.

llvm-svn: 76818
2009-07-22 23:27:22 +00:00
Chris Lattner
e2bd5bc939 remove the SelectSectionForMachineConst hook, replacing it with
a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705
2009-07-22 00:28:43 +00:00
Chris Lattner
b9332126cc Now that RelocBehaviour() is never overloaded, it doesn't need to be
virtual.  Just inline it into its two current call sites in preparation
for simplifying the code.

llvm-svn: 76686
2009-07-21 23:47:11 +00:00
Chris Lattner
8e84f6e70e improve comments.
llvm-svn: 76660
2009-07-21 22:30:25 +00:00
Chris Lattner
0f65fbf095 Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the
LLVM IR concept.

llvm-svn: 76590
2009-07-21 17:30:51 +00:00
David Greene
1ac6d4ac0e Re-apply 75490, 75806 and 76177 with fixes and tests. Efficiency comes
next.

llvm-svn: 76486
2009-07-20 22:02:59 +00:00
Chris Lattner
1f82d9a94c remove TargetAsmInfo::ExpandInlineAsm
llvm-svn: 76445
2009-07-20 17:59:32 +00:00
Chris Lattner
eebe4b24c3 add some fixme's and cleanups. TargetAsmInfo shouldn't depend on VMCore eventually.
llvm-svn: 76439
2009-07-20 17:47:48 +00:00
Chris Lattner
19134c0748 rename TargetAsmInfo::getASDirective -> getDataASDirective
llvm-svn: 76431
2009-07-20 17:12:46 +00:00
Evan Cheng
fe529a2c29 Revert 76177 for now. It's messing up ARM asm printing. Also this significant debate about its efficiency.
llvm-svn: 76279
2009-07-18 01:43:53 +00:00
Chris Lattner
ffe0c407be Untangle a snarl that I discovered when updating the mangler,
starting in getCurrentFunctionEHName.  Among other problems,
we would try to privative a "foo.eh" label, but end up emitting
the label as _Lfoo.eh instead of L_foo.eh on darwin.  This is really
bad, and the linker has always tolerated these labels existing.
For now, just emit them as _foo.eh.

This patch also fixes problems with ".eh" labels on unnamed
functions and eliminates two strangely defined TargetAsmInfo
hooks.

llvm-svn: 76231
2009-07-17 20:46:40 +00:00
David Greene
70e8a51127 Add logic to align instruction operands to columns for pretty-printing.
No target uses this currently.  This patch only adds the mechanism so
that local installations can choose to enable this.

llvm-svn: 76177
2009-07-17 14:24:46 +00:00
Duncan Sands
765b981647 Remove StringConstantPrefix now that the only user
(llvm-gcc) has gone.

llvm-svn: 75781
2009-07-15 12:39:48 +00:00
Dan Gohman
19222a6572 Delete a spurious const.
llvm-svn: 75493
2009-07-13 20:46:11 +00:00
David Greene
814f6a648f Add infrastructure to allow post instruction printing action triggers.
We'll eventually use this to print comments in asm files and do other
fun things.

This adds interfaces to the AsmPrinter and changes TableGen to invoke
the postInstructionAction when appropriate.  It also add parameters to
TargetAsmInfo to control comment layout.

llvm-svn: 75490
2009-07-13 20:25:48 +00:00
Chris Lattner
c2b0fd0304 merge the common darwin settings from the X86/PPC/ARM targets
into DarwinTargetAsmInfo.cpp.  The remaining differences should
be evaluated.  It seems strange that x86/arm has .zerofill but ppc
doesn't, etc.

llvm-svn: 73742
2009-06-19 00:08:39 +00:00
Chris Lattner
6cd267dcc5 move mangler quote handling from asm printers to TargetAsmInfo.
llvm-svn: 73738
2009-06-18 23:41:35 +00:00
Chris Lattner
ea0ea2f4bc simplify macro debug info directive handling.
llvm-svn: 73736
2009-06-18 23:31:37 +00:00
Sanjiv Gupta
20d1683822 Add directive to declare external globals.
llvm-svn: 70379
2009-04-29 08:23:18 +00:00
Devang Patel
ad7f61c279 Reapply 68847.
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.

llvm-svn: 68964
2009-04-13 17:02:03 +00:00
Dan Gohman
ac11c8d30f Revert r68847. It breaks the build on non-Darwin targets, with this message
from the assembler:

Error: unknown pseudo-op: `.debug_inlined'
llvm-svn: 68863
2009-04-11 15:57:04 +00:00
Devang Patel
6f907173e0 Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.

llvm-svn: 68847
2009-04-11 00:16:47 +00:00
Anton Korobeynikov
2ea565a37b Add data.rel stuff
llvm-svn: 68031
2009-03-30 15:27:03 +00:00
Anton Korobeynikov
ec131d94ff Honour relocation behaviour stuff for ro objects
llvm-svn: 68005
2009-03-29 17:13:49 +00:00
Chris Lattner
2291a8be5e add a friend needed by a stringmap change.
llvm-svn: 63706
2009-02-04 01:51:53 +00:00
Sanjiv Gupta
c47a19b23e Made the common case of default address space directive as non-virtual for performance reasons. Provide a single virtual interface for directives of all sizes in non-default address spaces.
llvm-svn: 63521
2009-02-02 16:53:06 +00:00
Sanjiv Gupta
e442452ade Enable emitting of constant values in non-default address space as well. The APIs emitting constants now take an additional parameter signifying the address space in which to emit. The APIs like getData8BitsDirective() etc are made virtual enabling targets to be able to define appropirate directivers for various sizes and address spaces.
llvm-svn: 63377
2009-01-30 04:25:10 +00:00