Commit Graph

327 Commits

Author SHA1 Message Date
Chris Lattner
290c2f56ce eliminate CurrentSection, rename CurrentSection_ -> CurrentSection, make it private,
eliminate IsInTextSection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78017 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 23:20:21 +00:00
Chris Lattner
c6fdced3db Kill off SwitchToDataSection and SwitchToTextSection, woo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78015 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 23:10:34 +00:00
Chris Lattner
38c398808c make getObjFileLowering() return a non-const reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77984 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 19:12:26 +00:00
Chris Lattner
d54a6b8c58 make SwitchToSection accept null sections for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77976 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-03 18:04:42 +00:00
Chris Lattner
18a4c16726 move dwarf debug info section selection stuff from TAI to
TLOF, unifying all the dwarf targets at the same time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77889 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 07:24:22 +00:00
Chris Lattner
35039ac241 convert EHFrameSection to be managed by TLOF instead of TAI.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 06:52:36 +00:00
Chris Lattner
ad88bc4076 Fix some fixme's in #if 0'd code by making it dependent on the structural
behavior of the LSDA section instead of on some random target hook that
needs to be kept in synch with other points of truth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77855 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 03:59:56 +00:00
Chris Lattner
d5bbb07ec8 move getDwarfExceptionSection from TAI to TLOF and rename it to
getLSDASection() to be more specific.  This makes it pretty obvious
that the ELF LSDA section is being specified wrong in PIC mode.  We're
probably getting a lot of startup-time relocations to a readonly page,
which is expensive and bad.

Someone who cares about ELF C++ should investigate this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 01:34:32 +00:00
Chris Lattner
80ec2792b2 convert ctors/dtors section to be in TLOF instead of
TAI.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77842 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-02 00:34:36 +00:00
Chris Lattner
2798119ab4 (re)introduce new simpler apis for creation sectionkinds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01 23:57:16 +00:00
Chris Lattner
83d77faf6e Remove "JumpTableDataSection" from TAI, instead, have AsmPrinter
compute it based on what it knows.  As part of this, rename getSectionForMergeableConstant
to getSectionForConstant because it works for non-mergable constants also.

The only functionality change from this is that Xcore will start dropping
its jump tables into readonly section instead of data section in -static mode.
This should be fine as the linker resolves the relocations.  If this is a
problem, let me know and we'll come up with another solution.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77833 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01 23:46:12 +00:00
Chris Lattner
2f03f65205 loweringinfo is always non-null.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01 22:48:40 +00:00
Chris Lattner
c19ee610f6 fix a problem Eli noticed where we would compile the attached ptrtoint
to:

.quad X

even on a 32-bit system, where X is not 64-bits.  There isn't much that
we can do here, so we just print:

.quad	((X) & 4294967295)

instead.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77818 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01 22:25:12 +00:00
Chris Lattner
968ff11967 Change SectionKind to be a property that is true of a *section*, it
should have no state that is specific to particular globals in the
section.  In this case, it means the removal of the "isWeak" and
"ExplicitSection" bits.  MCSection uses the new form of SectionKind.

To handle isWeak, I introduced a new SectionInfo class, which is
SectionKind + isWeak, and it is used by the part of the code generator
that does classification of a specific global.

The ExplicitSection disappears.  It is moved onto MCSection as a new
"IsDirective" bit.  Since the Name of a section is either a section
or directive, it makes sense to keep this bit in MCSection.  Ultimately
the creator of MCSection should canonicalize (e.g.) .text to whatever
the actual section is.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-01 21:11:14 +00:00
Dan Gohman
845012e6d3 Use setPreservesAll and setPreservesCFG in CodeGen passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77754 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 23:37:33 +00:00
Chris Lattner
46b754c76b add some comments on how this is *supposed* to work. We don't
need the PreferredEHDataFormat hook, but I have yet-more refactoring to
do before I can zap it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77742 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 22:18:14 +00:00
Chris Lattner
81c9a06937 rearrange a conditional. Even if this weren't #if 0'd out, this would
have no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 22:03:47 +00:00
David Greene
bef8768bd0 Simplify operand padding by keying off tabs in the asm stream. If
padding is disabled, tabs get replaced by spaces except in the case of
the first operand, where the tab is output to line up the operands after
the mnemonics.

Add some better comments and eliminate redundant code.

Fix some testcases to not assume tabs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77740 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 21:57:10 +00:00
Chris Lattner
7a01e95915 PreferredEHDataFormat is always call with data and global, but this whole
thing is #if0'd out anyway.  Just simplify the code by reducing the interface.
Not deleting this is essential for Bill's continuing happiness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 21:39:55 +00:00
Chris Lattner
26630c1180 move emitUsedDirectiveFor to TargetLoweringObjectFile and rename it to
indicate that it is a predicate, not an emitter.  This eliminates TAI
dependencies on Mangler and GlobalValue.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77726 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 20:52:39 +00:00
Chris Lattner
a87dea4f8c switch off of 'Section' onto MCSection. We're not properly using
MCSection subclasses yet, but this is a step in the right direction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77708 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 18:48:30 +00:00
Chris Lattner
f26e03bc7e refactor section construction in TLOF to be through an explicit
initialize method, which can be called when an MCContext is available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-31 17:42:42 +00:00
Devang Patel
78ab9e2c49 Start using DebugInfoFinder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77621 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-30 18:56:46 +00:00
Bill Wendling
409914b773 Forgot to output the base offset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77505 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 21:19:44 +00:00
Chris Lattner
e53a600f06 pass the mangler down into the various SectionForGlobal methods.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77432 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 05:09:30 +00:00
Bill Wendling
0dafca9076 Move comment to above method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77412 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 00:50:05 +00:00
Bill Wendling
ade025c65c - Temporarily unbreak the build by forcing the TType "absptr", which isn't
correct. But what are you going to do? I'll fix this in the future.
- Move another large loop into its own method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29 00:31:35 +00:00
Bill Wendling
5cff487665 Cleanup code to use iterators instead of ".size()".
Does any one else hate the name "const_reverse_iterator" as much as I do?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 23:44:43 +00:00
Bill Wendling
d4609622ad Doxygenify comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77394 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 23:23:00 +00:00
Bill Wendling
5e953ddfa3 Split out large loop into it's very own method. No intended functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77393 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 23:22:13 +00:00
Bill Wendling
b0d9c3e7fd Output the EH TType format and base offset only if there are types that we're
going to emit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 22:23:45 +00:00
Bill Wendling
c5800a809f Use the preferred EH data format for the preferred EH data format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 21:54:03 +00:00
Chris Lattner
f0144127b9 Rip all of the global variable lowering logic out of TargetAsmInfo. Since
it is highly specific to the object file that will be generated in the end,
this introduces a new TargetLoweringObjectFile interface that is implemented
for each of ELF/MachO/COFF/Alpha/PIC16 and XCore.

Though still is still a brutal and ugly refactoring, this is a major step
towards goodness.

This patch also:
1. fixes a bunch of dangling pointer problems in the PIC16 backend.
2. disables the TargetLowering copy ctor which PIC16 was accidentally using.
3. gets us closer to xcore having its own crazy target section flags and
   pic16 not having to shadow sections with its own objects.
4. fixes wierdness where ELF targets would set CStringSection but not
   CStringSection_.  Factor the code better.
5. fixes some bugs in string lowering on ELF targets.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77294 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-28 03:13:23 +00:00
Chris Lattner
2b2954f00b hoist MCContext/MCStreamer up to AsmPrinter since we're going to start creating
MCSections soon instead of Section for all targets, and we need something to
own them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 21:28:04 +00:00
Chris Lattner
5fe575ff4f Eliminate SectionFlags, just embed a SectionKind into Section
instead and drive things based off of that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-27 05:32:16 +00:00
Daniel Dunbar
460f656475 Remove Value::getName{Start,End}, the last of the old Name APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77152 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 09:48:23 +00:00
Chris Lattner
f40761d522 remove a densemap from TargetAsmInfo that was uniquing the targetflags strings,
just use a smallstring instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77144 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 07:33:58 +00:00
Chris Lattner
4c50922f6b make SectionKind know whether a symbol is weak or not in addition
to its classification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77140 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 07:00:12 +00:00
Chris Lattner
2ceb60a677 rename Mergable -> Mergeable and Writable -> Writeable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 06:48:26 +00:00
Chris Lattner
94809c3b10 two files I missed in the last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77137 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 06:36:20 +00:00
Chris Lattner
5c2f789952 simplify getSectionForMergableConstant to take a SectionKind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-26 06:26:55 +00:00
Daniel Dunbar
03d7651c36 Remove Value::{isName, getNameRef}.
Also, change MDString to use a StringRef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77098 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25 23:55:21 +00:00
Chris Lattner
d0418ce890 remove a use of SectionFlagsForGlobal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76970 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 16:40:09 +00:00
Chris Lattner
837f332372 document SectionFlags::Named better and make it more easily greppable by
eliminating isNamed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76946 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-24 04:26:19 +00:00
David Greene
67e59834fc Put comment printing under asm-verbose.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76780 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 20:33:26 +00:00
Chris Lattner
298414ec18 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22 00:28:43 +00:00
Chris Lattner
40bbebde9d make AsmPrinter::doFinalization iterate over the global variables
and call PrintGlobalVariable, allowing elimination and simplification
of various targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76604 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 18:38:57 +00:00
Chris Lattner
90f8b7073d Rename LessPrivateGlobalPrefix -> LinkerPrivateGlobalPrefix to match the
LLVM IR concept.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76590 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-21 17:30:51 +00:00
Bill Wendling
4cef584860 Pass in the unfortunately named "LessPrivatePrefix" for the
"LinkerPrivatePrefix". It seems to have been used in only one place before I
started this "linker_private" business. I'm thinking that a rename is in
order...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20 21:30:28 +00:00
Chris Lattner
401e10c4fb implement a new magic global "llvm.compiler.used" which is like llvm.used, but
doesn't cause ".no_dead_strip" to be emitted on darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20 06:14:25 +00:00