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20814 Commits

Author SHA1 Message Date
Duncan Sands
38ef3a8ec7 Rather than having special rules like "intrinsics cannot 
throw exceptions", just mark intrinsics with the nounwind
attribute.  Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).

llvm-svn: 44544
 2007-12-03 20:06:50 +00:00
Chris Lattner
19970e62e7 update file comment. 
llvm-svn: 44543
 2007-12-03 19:43:18 +00:00
Anton Korobeynikov
c09b265410 Regenerate 
llvm-svn: 44541
 2007-12-03 19:17:47 +00:00
Devang Patel
bd75910fa7 If ExitValue operand is also defined in Loop header then 
insert new ExitValue after this operand definition.

This fixes PR1828.

llvm-svn: 44539
 2007-12-03 19:17:21 +00:00
Anton Korobeynikov
d62b10dc93 More sanity checks for function types. 
Thanks goes to PyPy folks for generating broken stuff :)

llvm-svn: 44538
 2007-12-03 19:16:54 +00:00
Gordon Henriksen
4814cd2271 Applying Anton's binmode fix to the other ofstream too. 
llvm-svn: 44535
 2007-12-03 14:50:37 +00:00
Anton Korobeynikov
bf96d99383 Sorry, typo :) 
llvm-svn: 44534
 2007-12-03 14:35:57 +00:00
Anton Korobeynikov
7c5442b0e3 Open output file correctly. This is extremely important for 
windows-based hosts, where files are opened in text mode by default.

llvm-svn: 44533
 2007-12-03 14:28:26 +00:00
Evan Cheng
196faa9dc5 Typo 
llvm-svn: 44532
 2007-12-03 10:00:00 +00:00
Evan Cheng
85ef9834a6 Update kill info for uses of split intervals. 
llvm-svn: 44531
 2007-12-03 09:58:48 +00:00
Anton Korobeynikov
9050bd1f68 Provide hook for _alloca to make JITing on Cygwin slightly happier :) 
llvm-svn: 44528
 2007-12-03 05:30:41 +00:00
Evan Cheng
f45a1d623c Remove redundant foldMemoryOperand variants and other code clean up. 
llvm-svn: 44517
 2007-12-02 08:30:39 +00:00
Duncan Sands
68b6f50938 Integrate the readonly/readnone logic more deeply 
into alias analysis.  This meant updating the API
which now has versions of the getModRefBehavior,
doesNotAccessMemory and onlyReadsMemory methods
which take a callsite parameter.  These should be
used unless the callsite is not known, since in
general they can do a better job than the versions
that take a function.  Also, users should no longer
call the version of getModRefBehavior that takes
both a function and a callsite.  To reduce the
chance of misuse it is now protected.

llvm-svn: 44487
 2007-12-01 07:51:45 +00:00
Evan Cheng
388f6f51a0 Fix a bug where splitting cause some unnecessary spilling. 
llvm-svn: 44482
 2007-12-01 04:42:39 +00:00
Evan Cheng
69fda0a716 Allow some reloads to be folded in multi-use cases. Specifically testl r, r -> cmpl [mem], 0. 
llvm-svn: 44479
 2007-12-01 02:07:52 +00:00
Ted Kremenek
8ded669b04 Fixed subtle bug in Deserializer::JumpTo when jumping when the block-nesting 
information matching did not exactly match the underlying stream's scoping
information.

llvm-svn: 44470
 2007-11-30 22:45:05 +00:00
Evan Cheng
b10dc27b20 Do not fold reload into an instruction with multiple uses. It issues one extra load. 
llvm-svn: 44467
 2007-11-30 21:23:43 +00:00
Chris Lattner
907703cecd chain update requests properly. 
llvm-svn: 44460
 2007-11-30 18:52:58 +00:00
Duncan Sands
d4d7f9d69e Small optimization of parameter attribute lookup. 
llvm-svn: 44458
 2007-11-30 18:20:58 +00:00
Duncan Sands
b41f872013 Add a convenience method for modifying parameter 
attributes.  While there, I noticed that not all
attribute methods returned a pointer-to-constant,
so I fixed that.

llvm-svn: 44457
 2007-11-30 18:19:18 +00:00
Duncan Sands
4e8c071612 Check that there are not more attributes than 
function parameters.

llvm-svn: 44452
 2007-11-30 15:52:20 +00:00
Devang Patel
cc45c338d1 Provide a way to update DescGlobals cache directly. 
llvm-svn: 44446
 2007-11-30 00:51:33 +00:00
Evan Cheng
d35b5acae4 Do not lose rematerialization info when spilling already split live intervals. 
llvm-svn: 44443
 2007-11-29 23:02:50 +00:00
Owen Anderson
ffa55112e0 Fix a miscompilation in spiff on PPC. 
llvm-svn: 44437
 2007-11-29 18:02:22 +00:00
Evan Cheng
8494ee175c Fix a major performance issue with splitting. If there is a def (not def/use) 
in the middle of a split basic block, create a new live interval starting at
the def. This avoid artifically extending the live interval over a number of
cycles where it is dead. e.g.

bb1:
       = vr1204   (use / kill) <= new interval starts and ends here.
...
...
vr1204 =          (new def)   <= start a new interval here.
       = vr1204   (use)

llvm-svn: 44436
 2007-11-29 10:12:14 +00:00
Evan Cheng
f85c063ec0 Replace the odd kill# hack with something less fragile. 
llvm-svn: 44434
 2007-11-29 09:49:23 +00:00
Duncan Sands
8dfcd5975e Small parameter attributes cleanup. 
llvm-svn: 44433
 2007-11-29 08:30:15 +00:00
Evan Cheng
be255b0650 Fixed various live interval splitting bugs / compile time issues. 
llvm-svn: 44428
 2007-11-29 01:06:25 +00:00
Evan Cheng
147f7799c5 Kill info update bug. 
llvm-svn: 44427
 2007-11-29 01:05:47 +00:00
Chris Lattner
246b7b2dbf Work around a GCC bug, producing this code: 
unsigned char *llvm_cbe_X;
...
  llvm_cbe_X = 0; *((void**)&llvm_cbe_X) = __builtin_stack_save();

instead of:

  llvm_cbe_X = __builtin_stack_save();

See PR1809 for details.

llvm-svn: 44415
 2007-11-28 21:26:17 +00:00
Chris Lattner
57ee7c6630 Implement ExpandOperationResult for ppc i64 fp->int, which fixes 
CodeGen/Generic/fp_to_int.ll among others.  Its unclear why this 
just started failing...

llvm-svn: 44407
 2007-11-28 18:44:47 +00:00
Chris Lattner
749478a61b for consistency, allow a fallthrough if the final check returns null. 
llvm-svn: 44406
 2007-11-28 18:30:18 +00:00
Duncan Sands
5208d1ab4a Add some convenience methods for querying attributes, and 
use them.

llvm-svn: 44403
 2007-11-28 17:07:01 +00:00
Duncan Sands
ff306287ff My compiler complains that "x always evaluates to true" 
in this call:

	Result.IntVal = APInt(80, 2, x);

What is x?

	uint16_t x[8];

I deduce that the APInt constructor being used is this one:

  APInt(uint32_t numBits, uint64_t val, bool isSigned = false);

rather than this one:

  APInt(uint32_t numBits, uint32_t numWords, const uint64_t bigVal[]);

That doesn't seem right!  This fix compiles but is otherwise completely
untested.

llvm-svn: 44400
 2007-11-28 10:36:19 +00:00
Duncan Sands
45a0c3265f Add missing newlines at EOF. 
llvm-svn: 44399
 2007-11-28 10:13:38 +00:00
Evan Cheng
c1648b6a0d Recover compile time regression. 
llvm-svn: 44386
 2007-11-28 01:28:46 +00:00
Owen Anderson
30767b15e9 Add MachineLoopInfo. This is not yet tested. 
llvm-svn: 44384
 2007-11-27 22:47:08 +00:00
Chris Lattner
57662f3882 several entries got significantly better, though they still aren't done. 
llvm-svn: 44382
 2007-11-27 22:41:52 +00:00
Chris Lattner
f3f4ad9dd6 implement a trivial readme entry. 
llvm-svn: 44380
 2007-11-27 22:36:16 +00:00
Chris Lattner
79ae9895f6 Fix a crash on invalid code due to memcpy lowering. 
llvm-svn: 44378
 2007-11-27 22:14:42 +00:00
Chris Lattner
be5f3cb6f1 Make this actually work on systems that support ppc long double. 
llvm-svn: 44374
 2007-11-27 20:45:25 +00:00
Chris Lattner
fffd0ae2f1 Unbreak all of the darwin/ppc32 JIT failures having to do 
with not being able to find printf.

llvm-svn: 44373
 2007-11-27 20:41:32 +00:00
Nate Begeman
6f026a654c Support returning non-power-of-2 vectors to unblock some work 
llvm-svn: 44371
 2007-11-27 19:28:48 +00:00
Andrew Lenharth
b960acebde something wrong with this opt 
llvm-svn: 44370
 2007-11-27 18:31:30 +00:00
Chris Lattner
1dfc48d4f6 Unbreak backwards compatibility with bytecode format. Regression 
introduced by this patch:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20071126/055824.html

llvm-svn: 44364
 2007-11-27 17:48:06 +00:00
Duncan Sands
ad0ea2d430 Fix PR1146: parameter attributes are longer part of 
the function type, instead they belong to functions
and function calls.  This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll).  Hopefully
a bitcode guru (who might that be? :) ) will fix it.

llvm-svn: 44359
 2007-11-27 13:23:08 +00:00
Chris Lattner
698b1cb28d err, no really. 
llvm-svn: 44352
 2007-11-27 06:14:32 +00:00
Chris Lattner
28caf2717a don't depend on ADL. 
llvm-svn: 44351
 2007-11-27 06:14:12 +00:00
Owen Anderson
b0dd27ee91 Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change. 
llvm-svn: 44348
 2007-11-27 03:43:35 +00:00
Dan Gohman
9a69341725 Don't lower srem/urem X%C to X-X/C*C unless the division is actually 
optimized. This avoids creating illegal divisions when the combiner is
running after legalize; this fixes PR1815. Also, it produces better
code in the included testcase by avoiding the subtract and multiply
when the division isn't optimized.

llvm-svn: 44341
 2007-11-26 23:46:11 +00:00