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Author SHA1 Message Date
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
ba0f5e174f Disable on x86_64 until I figure out what's wrong. 
llvm-svn: 62660
 2009-01-21 02:08:30 +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
Devang Patel
fd1fff7178 Need compile unit to find location. 
llvm-svn: 62624
 2009-01-20 22:26:11 +00:00
Dale Johannesen
1c12d1b665 Calls to fmod, it turns out, are constant-folded by 
invoking the host fmod, not by lowering to frem and
constant-folding that.  Fix this so it tests what I
want to test.

llvm-svn: 62622
 2009-01-20 21:58:13 +00:00
Chris Lattner
4f4bbecafb Don't bother running the assembler, we don't know that it will be configured 
for whatever llc defaults to.  This fixes PR3363

llvm-svn: 62619
 2009-01-20 21:41:53 +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
Evan Cheng
0151af3a61 Add test case for PR3154. 
llvm-svn: 62604
 2009-01-20 19:29:54 +00:00
Devang Patel
2f92bb62a8 indentation... 
llvm-svn: 62603
 2009-01-20 19:23:29 +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
10237f3666 zap white spaces. 
llvm-svn: 62598
 2009-01-20 19:08:39 +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
816e00f6a0 eliminate use of uint32_t to improve compatibility with cygwin 
llvm-svn: 62591
 2009-01-20 18:23:14 +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
Duncan Sands
7af474d2da Check that the "don't barf on k8" fix is not 
accidentally reverted again.

llvm-svn: 62587
 2009-01-20 18:08:39 +00:00
Evan Cheng
38bf18b556 Spacing 
llvm-svn: 62584
 2009-01-20 17:30:40 +00:00
Bill Wendling
5bd5863cdb Temporarily XFAIL until this can be looked at. r62557 is what caused it to start failing. 
llvm-svn: 62578
 2009-01-20 10:28:39 +00:00
Duncan Sands
7d2ea3c6de If a vector is empty, you're not allowed to access any 
elements, even if it is only to take the address.  Test:
break-anti-dependencies.ll with ENABLE_EXPENSIVE_CHECKS.

llvm-svn: 62576
 2009-01-20 09:05:19 +00:00
Evan Cheng
58488a481f Refactor code. No functionality change. 
llvm-svn: 62573
 2009-01-20 06:44:16 +00:00
Bill Wendling
68171bde8e Testcase for limited precision stuff. 
llvm-svn: 62572
 2009-01-20 06:23:59 +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
cb83b52e4e Regenerate. 
BUILT WITH WRONG VERSION OF AUTOCONF! Somebody please regenerate with an
approved version. Thanks!

llvm-svn: 62554
 2009-01-20 00:52:24 +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
Dale Johannesen
5508ead868 Move & restructure test per review. 
llvm-svn: 62538
 2009-01-19 22:33:12 +00:00
Chris Lattner
7b4c55fb34 convert this to an unfoldable potentially trapping constant expr. 
llvm-svn: 62536
 2009-01-19 22:12:33 +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