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Author SHA1 Message Date
Chris Lattner
3db729e661 don't set value to its default. 
llvm-svn: 94411
 2010-01-25 07:23:14 +00:00
Chris Lattner
0b42d3ef45 coff targets support alignment on .comm 
llvm-svn: 94410
 2010-01-25 07:20:44 +00:00
Jim Grosbach
4f713bf0fb ARM does accept the .comm directive alignment. 
llvm-svn: 94408
 2010-01-25 04:59:07 +00:00
Eric Christopher
0f43b92584 Fix autoconf llvm srcdir location for generic projects. 
Patch by Torvald Riegel!

llvm-svn: 94405
 2010-01-25 04:10:28 +00:00
Rafael Espindola
82a8b3efd4 Fix PR6134. 
We are not emitting alignments on Darwin for "bar". Not sure what is the
correct way to do it.

llvm-svn: 94400
 2010-01-25 02:27:39 +00:00
Daniel Dunbar
c1df55e99c Attempt to unbreak test on Linux. Chris, please check. 
llvm-svn: 94399
 2010-01-25 00:54:13 +00:00
Daniel Dunbar
003c6aca1c This example requires RTTI. 
llvm-svn: 94398
 2010-01-25 00:45:01 +00:00
Chris Lattner
e04db98cdd linux/ppc does use alignment in bytes, not pow-2. This fixes PR6129. 
It looks like linux/arm and linux/mips have the same setting, which 
are probably wrong.  Someone who cares about ARM and MIPS should 
investigate with the testcase in PR6129.

llvm-svn: 94381
 2010-01-24 20:54:45 +00:00
Chris Lattner
bf8495a08e don't reset the default. 
llvm-svn: 94380
 2010-01-24 20:53:12 +00:00
Chris Lattner
5a57121631 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
llvm-svn: 94378
 2010-01-24 20:43:08 +00:00
Chris Lattner
397d34f06b mark some libraries that currently require RTTI. 
llvm-svn: 94377
 2010-01-24 20:22:08 +00:00
Chris Lattner
e753847267 libs that need EH need RTTI. 
llvm-svn: 94376
 2010-01-24 20:21:50 +00:00
Chris Lattner
c0335bacb4 ENABLE_EXPENSIVE_CHECKS shouldn't know how rtti is enabled, let REQUIRES_RTTI handle it. 
llvm-svn: 94375
 2010-01-24 20:20:40 +00:00
Chris Lattner
82318209c4 reassociate should do this. 
llvm-svn: 94374
 2010-01-24 20:17:09 +00:00
Chris Lattner
e328ab9a00 add a note. 
llvm-svn: 94373
 2010-01-24 20:01:41 +00:00
Chris Lattner
6fdaf12267 just remove this test, it is not reduced, is not clear what its testing for and 
it is dying due to fragility in the asmprinter .s comments.

llvm-svn: 94372
 2010-01-24 19:23:09 +00:00
Chris Lattner
9cb699ec58 this test has been failing or a long time, just disable it for now to get 
back to green.

llvm-svn: 94371
 2010-01-24 19:13:39 +00:00
Chris Lattner
0dde21dba4 fix some issues where we weren't emitting enough newlines. 
llvm-svn: 94370
 2010-01-24 19:01:06 +00:00
Chris Lattner
c0ac5c1d3b when emitting DIEs, emit the comment on the same line as the directive. 
This fixes FrontendObjC/2009-11-30-Objc-ID.m

llvm-svn: 94369
 2010-01-24 18:54:17 +00:00
Chris Lattner
d9f55b7c3d move PR5945 here. 
llvm-svn: 94350
 2010-01-24 02:27:03 +00:00
Chris Lattner
5d31547fec fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.

llvm-svn: 94345
 2010-01-24 01:07:33 +00:00
Chris Lattner
1e19ffa26d This corrects an error in the type of the Llvm.dispose_context function. 
Patch by James Woodyatt!

llvm-svn: 94343
 2010-01-24 00:25:09 +00:00
Mon P Wang
d4d1cbb72b It seems better to scalarize vectors of size 1 instead of widening them. 
Add support to widen SETCC.

llvm-svn: 94342
 2010-01-24 00:24:43 +00:00
Chris Lattner
91fafbd4e8 change the canonical form of "cond ? -1 : 0" to be 
"sext cond" instead of a select.  This simplifies some instcombine
code, matches the policy for zext (cond ? 1 : 0 -> zext), and allows
us to generate better code for a testcase on ppc.

llvm-svn: 94339
 2010-01-24 00:09:49 +00:00
Mon P Wang
871ea08e40 Improved widening loads by adding support for wider loads if 
the alignment allows.  Fixed a bug where we didn't use a
vector load/store for PR5626.

llvm-svn: 94338
 2010-01-24 00:05:03 +00:00
Chris Lattner
b9e618553f fix a potential overflow issue Eli pointed out. 
llvm-svn: 94336
 2010-01-23 23:31:46 +00:00
Nick Lewycky
f9a681fb61 Speculatively revert r94322 to see if it fixes darwin selfhost buildbot. 
llvm-svn: 94331
 2010-01-23 20:32:12 +00:00
Chris Lattner
b444bc0234 third bug from PR6119: the xor dupe extension allows 
for arbitrary terminators in predecessors, don't assume
it is a conditional or uncond branch.  The testcase shows
an example where they can happen with switches.

llvm-svn: 94323
 2010-01-23 19:21:31 +00:00
Nick Lewycky
8bbb754c7c Teach DAE that even though it can't modify the function signature of an 
externally visible function, it can still find all callers of it and replace
the parameters to a dead argument with undef.

llvm-svn: 94322
 2010-01-23 19:19:34 +00:00
Chris Lattner
7130788ea2 add an early out to ProcessBranchOnXOR to speed it up, 
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199

llvm-svn: 94321
 2010-01-23 19:16:25 +00:00
Chris Lattner
e4391a1adb fix a crash in jump threading, PR6119 
llvm-svn: 94319
 2010-01-23 18:56:07 +00:00
Chris Lattner
8909d5aca5 implement a simple instcombine xform that has been in the 
readme forever.

llvm-svn: 94318
 2010-01-23 18:49:30 +00:00
Chris Lattner
744a23610a add a note 
llvm-svn: 94317
 2010-01-23 18:42:37 +00:00
Chris Lattner
fdc6162f82 add some notes, making posix-memalign be nocapture would be an easy improvement. 
llvm-svn: 94312
 2010-01-23 17:59:23 +00:00
Bill Wendling
7449bb010b Remove the '-disable-scheduling' flag and replace it with the 'source' option of 
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.

llvm-svn: 94308
 2010-01-23 10:26:57 +00:00
Benjamin Kramer
252f9b6a26 Respect operator precedence (and silence a gcc 4.3 warning). 
llvm-svn: 94304
 2010-01-23 09:54:23 +00:00
Chris Lattner
617e6fb889 mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
llvm-svn: 94299
 2010-01-23 07:47:02 +00:00
Chris Lattner
7e1fa376cc resolve a fixme: the "nonexecutable stack directive" is actually 
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298
 2010-01-23 07:21:06 +00:00
Chris Lattner
7fe6265555 remove a dead call. 
llvm-svn: 94297
 2010-01-23 07:17:54 +00:00
Chris Lattner
4db62b81c3 use helpers. 
llvm-svn: 94296
 2010-01-23 07:00:21 +00:00
Chris Lattner
56c318f344 mcize visibility directives. 
llvm-svn: 94295
 2010-01-23 06:53:23 +00:00
Chris Lattner
60edc92e39 move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.

llvm-svn: 94294
 2010-01-23 06:39:22 +00:00
Chris Lattner
1b7c00a4f2 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293
 2010-01-23 06:17:14 +00:00
Eric Christopher
e6d6bfcc32 Don't lower splat vector load to relative to the esp if the 
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!

llvm-svn: 94291
 2010-01-23 06:02:43 +00:00
Chris Lattner
62d08f5577 mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
llvm-svn: 94290
 2010-01-23 05:51:36 +00:00
Chris Lattner
e5e7b41090 stop testing for invalid output. 
llvm-svn: 94288
 2010-01-23 05:45:28 +00:00
Eric Christopher
bc8f2b1a56 Reapply 94059 while fixing the calling convention setup 
for strcpy.

llvm-svn: 94287
 2010-01-23 05:29:06 +00:00
Chris Lattner
d9cedc9675 remove unneeded directive set. 
llvm-svn: 94286
 2010-01-23 05:28:25 +00:00
Chris Lattner
e41f630fa0 use some helpers instead of duplicating logic. 
llvm-svn: 94285
 2010-01-23 05:26:25 +00:00
Chris Lattner
2ee0376c42 mcize jump table and constant pool entry labels, .local on elf, 
and some .weak directives.

llvm-svn: 94284
 2010-01-23 05:19:23 +00:00