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26727 Commits

Author SHA1 Message Date
Chris Lattner
92f592ad8b fix a typo 
llvm-svn: 62761
 2009-01-22 07:21:55 +00:00
Chris Lattner
fcf56e7fbe add a note 
llvm-svn: 62760
 2009-01-22 07:16:03 +00:00
Chris Lattner
ddc8e78d54 Fix PR3358, a really nasty bug where recursive phi translated 
analyses could be run without the caches properly sorted.  This
can fix all sorts of weirdness.  Many thanks to Bill for coming
up with the 'issorted' verification idea.

llvm-svn: 62757
 2009-01-22 07:04:01 +00:00
Dan Gohman
29b575c6cd Recognize inline asm for bswap on x86-64 GLIBC. This allows it 
to be supported in the JIT.

llvm-svn: 62730
 2009-01-21 23:40:54 +00:00
Dale Johannesen
a5699a1e8b Do not use host floating point types when emitting 
ASCII IR; loading and storing these can change the
bits of NaNs on some hosts.  Remove or add warnings
at a few other places using host floating point;
this is a bad thing to do in general.

llvm-svn: 62712
 2009-01-21 20:32:55 +00:00
Evan Cheng
43d680b0d8 Also favors NOT64r. 
llvm-svn: 62710
 2009-01-21 19:45:31 +00:00
Chris Lattner
2b6b947b4f fix warning in release-asserts mode and spelling of assert. 
llvm-svn: 62699
 2009-01-21 18:38:18 +00:00
Chris Lattner
b4ffb1f824 add getPointerToGlobal to the C bindings, patch by Lennart Augustsson! 
PR3364

llvm-svn: 62697
 2009-01-21 18:11:10 +00:00
Chris Lattner
ca83aa289a Remove uses of uint32_t in favor of 'unsigned' for better 
compatibility with cygwin.  Patch by Jay Foad!

llvm-svn: 62695
 2009-01-21 18:09:24 +00:00
Dan Gohman
d021a20409 Simplify ReduceLoadWidth's logic: it doesn't need several different 
special cases after producing the new reduced-width load, because the
new load already has the needed adjustments built into it. This fixes
several bugs due to the special cases, including PR3317.

llvm-svn: 62692
 2009-01-21 15:17:51 +00:00
Dan Gohman
704f0d5879 Fix a recent regression. ClrOpcode is not set for i8; for i8, if 
we want to clear %ah to zero before a division, just use a
zero-extending mov to %al. This fixes PR3366.

llvm-svn: 62691
 2009-01-21 14:50:16 +00:00
Mikhail Glushenkov
898af4fdfa Mimic gcc behaviour with regard to response files. 
llvm-svn: 62688
 2009-01-21 13:14:02 +00:00
Sanjiv Gupta
ebef67f13c Fixed build warnings. Restoring changes done in 62600, they were lost in 62655. 
llvm-svn: 62681
 2009-01-21 09:02:46 +00:00
Duncan Sands
392dc77fc6 Cleanup whitespace and comments, and tweak some 
prototypes, in operand type legalization.  No
functionality change.

llvm-svn: 62680
 2009-01-21 09:00:29 +00:00
Owen Anderson
d1a2413f88 I accidentally removed this check in an earlier commit, which cause breakage in the pre alloc splitter. 
llvm-svn: 62678
 2009-01-21 08:18:03 +00:00
Sanjiv Gupta
37fdb5ca11 Implement LowerOperationWrapper for legalizer. 
Also a few signed comparison fixes.

llvm-svn: 62665
 2009-01-21 05:44:05 +00:00
Scott Michel
c80e71ac35 CellSPU: 
- Ensure that (operation) legalization emits proper FDIV libcall when needed.
- Fix various bugs encountered during llvm-spu-gcc build, along with various
  cleanups.
- Start supporting double precision comparisons for remaining libgcc2 build.
  Discovered interesting DAGCombiner feature, which is currently solved via
  custom lowering (64-bit constants are not legal on CellSPU, but DAGCombiner
  insists on inserting one anyway.)
- Update README.

llvm-svn: 62664
 2009-01-21 04:58:48 +00:00
Sanjiv Gupta
074553c4fb Allow targets to legalize operations (with illegal operands) that produces multiple values. For example, a load with an illegal operand (a load produces two values, a value and chain). 
llvm-svn: 62663
 2009-01-21 04:48:39 +00:00
Evan Cheng
0ed6a9d7e0 Favors generating "not" over "xor -1". For example. 
unsigned test(unsigned a) {
  return ~a;
}
llvm used to generate:
movl    $4294967295, %eax
xorl    4(%esp), %eax

Now it generates:
movl      4(%esp), %eax
notl      %eax

It's 3 bytes shorter.

llvm-svn: 62661
 2009-01-21 02:09:05 +00:00
Dale Johannesen
6854f86296 Make special cases (0 inf nan) work for frem. 
Besides APFloat, this involved removing code
from two places that thought they knew the
result of frem(0., x) but were wrong.

llvm-svn: 62645
 2009-01-21 00:35:19 +00:00
Owen Anderson
10ad717dc8 Be more aggressive about renumbering vregs after splitting them. 
llvm-svn: 62639
 2009-01-21 00:13:28 +00:00
Devang Patel
c129e798c7 Encode member accessibility. 
llvm-svn: 62638
 2009-01-21 00:08:04 +00:00
Devang Patel
bb4362571a Appropriately mark fowrad decls. 
llvm-svn: 62625
 2009-01-20 22:27:02 +00:00
Evan Cheng
5bea79c062 Fix PR3243: a LiveVariables bug. When HandlePhysRegKill is checking whether the last reference is also the last def (i.e. dead def), it should also check if last reference is the current machine instruction being processed. This can happen when it is processing a physical register use and setting the current machine instruction as sub-register's last ref. 
llvm-svn: 62617
 2009-01-20 21:25:12 +00:00
Duncan Sands
eb7ffc9654 Fix typo. Patch by Alexei Svitkine. 
llvm-svn: 62616
 2009-01-20 21:20:23 +00:00
Bill Wendling
cf901346da Use "SINT_TO_FP" instead of "UINT_TO_FP" when getting the exponent. This was 
causing the limited precision stuff to produce the wrong result for values in
the range [0, 1).

llvm-svn: 62615
 2009-01-20 21:17:57 +00:00
Devang Patel
4c79c8be26 Fix struct member's debug info. 
llvm-svn: 62610
 2009-01-20 21:02:02 +00:00
Devang Patel
ccc3162f69 Need only one set of debug info versions enum. 
llvm-svn: 62602
 2009-01-20 19:22:03 +00:00
Evan Cheng
b3c82db63d Change TargetInstrInfo::isMoveInstr to return source and destination sub-register indices as well. 
llvm-svn: 62600
 2009-01-20 19:12:24 +00:00
Devang Patel
10f2f03c68 Fix global variable's address in a DIE. 
llvm-svn: 62596
 2009-01-20 18:55:39 +00:00
Devang Patel
7f6ef3bdd6 Enable debug info for enums. 
llvm-svn: 62594
 2009-01-20 18:35:14 +00:00
Dale Johannesen
c9e6e85a38 Add an IEEE remainder function, which is not 
fully implemented yet and not used.  This is
mainly to clarify that APFloat::mod implements
C fmod, not remainder.

llvm-svn: 62593
 2009-01-20 18:35:05 +00:00
Chris Lattner
8ab719c566 improve compatibility with various versions of graphviz, patch by 
Patrick Boettcher!

llvm-svn: 62592
 2009-01-20 18:25:03 +00:00
Chris Lattner
391f04d56e Eliminate use of uint32_t to improve compatibility with cygwin 
llvm-svn: 62590
 2009-01-20 18:22:57 +00:00
Devang Patel
6bd9ebdef8 Enable debug info for composite types. 
llvm-svn: 62589
 2009-01-20 18:13:03 +00:00
Evan Cheng
58488a481f Refactor code. No functionality change. 
llvm-svn: 62573
 2009-01-20 06:44:16 +00:00
Bill Wendling
5685c90e04 Shift types need to match. 
llvm-svn: 62571
 2009-01-20 06:10:42 +00:00
Chris Lattner
6ade48fcaa another fix for PR3354 
llvm-svn: 62561
 2009-01-20 01:15:41 +00:00
Dan Gohman
7663e08915 Add a README entry noticed while investigating PR3216. 
llvm-svn: 62558
 2009-01-20 01:07:33 +00:00
Dan Gohman
ff4c4ab39f Fix a dagcombine to not generate loads of non-round integer types, 
as its comment says, even in the case where it will be generating
extending loads. This fixes PR3216.

llvm-svn: 62557
 2009-01-20 01:06:45 +00:00
Devang Patel
6a88f8849b Do not use DenseMap because the iterator is invalidated while constructing types. After all there was a reason why std::map was used initially! 
llvm-svn: 62555
 2009-01-20 00:58:55 +00:00
Nick Lewycky
6ef90b1a25 Make the Interpreter use libffi if it's available. Patch from Alexei Svitkine! 
This requires a rebuild of 'configure' itself. I will be committing that next, but
built with the wrong version of autoconf. Somebody who has the right one, please update
it.

As a side-note, because of the way autoconf works, all built tools will link against
libffi, not just lli. If you know how to fix this, please let me know ...

llvm-svn: 62553
 2009-01-20 00:51:40 +00:00
Evan Cheng
5ee5ba12be Make linear scan's trivial coalescer slightly more aggressive. 
llvm-svn: 62547
 2009-01-20 00:16:18 +00:00
Bill Wendling
5281f4fb64 Doxygen-ify comments. 
llvm-svn: 62546
 2009-01-19 23:43:56 +00:00
Devang Patel
7c2157602d Verify debug info. 
llvm-svn: 62545
 2009-01-19 23:21:49 +00:00
Chris Lattner
e8fa6f2468 Fix a problem exposed by PR3354: simplifycfg was making a potentially 
trapping instruction be executed unconditionally.

llvm-svn: 62541
 2009-01-19 23:03:13 +00:00
Dan Gohman
02b5657666 Remove SDNode's virtual destructor. This makes it impossible for 
SDNode subclasses to keep state that requires non-trivial
destructors, however it was already effectively impossible,
since the destructor isn't actually ever called. There currently
aren't any SDNode subclasses affected by this, and in general
it's desireable to keep SDNode objects light-weight.

This eliminates the last virtual member function in the SDNode
class, so it eliminates the need for a vtable pointer, making
SDNode smaller.

llvm-svn: 62539
 2009-01-19 22:39:36 +00:00
Chris Lattner
45a7b5ce57 improve compatibility with cygwin, patch by Jay Foad! 
llvm-svn: 62535
 2009-01-19 22:00:18 +00:00
Chris Lattner
8c8234435a div/rem by zero and div/rem overflow are both undefined according to 
langref.  Constant fold them to undef instead of trying to preserve
the trap.  This fixes PR3354.

llvm-svn: 62534
 2009-01-19 21:55:26 +00:00
Dan Gohman
af4e583c93 Fix SelectionDAG::ReplaceAllUsesWith to behave correctly when 
uses are added to the From node while it is processing From's
use list, because of automatic local CSE. The fix is to avoid
visiting any new uses.

Fix a few places in the DAGCombiner that assumed that after
a RAUW call, the From node has no users and may be deleted.

This fixes PR3018.

llvm-svn: 62533
 2009-01-19 21:44:21 +00:00