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42522 Commits

Author SHA1 Message Date
Nick Lewycky
f7dddd658f For statistics that are only used in functions declared in !NDEBUG, wrap the 
declarations in !NDEBUG to avoid -Wunused-variable warnings. Patch by
Matt Beaumont-Gay!

llvm-svn: 117345
 2010-10-26 00:51:57 +00:00
Jakob Stoklund Olesen
b0c10ed95a InlineSpiller can also update LiveStacks. 
llvm-svn: 117338
 2010-10-26 00:11:35 +00:00
Jakob Stoklund Olesen
3988c3fb55 Make the spiller responsible for updating the LiveStacks analysis. 
llvm-svn: 117337
 2010-10-26 00:11:33 +00:00
Bob Wilson
309484bb46 When the "true" and "false" blocks of a diamond if-conversion are the same, 
do not double-count the duplicate instructions by counting once from the
beginning and again from the end.  Keep track of where the duplicates from
the beginning ended and don't go past that point when counting duplicates
at the end.  Radar 8589805.

This change causes one of the MC/ARM/simple-fp-encoding tests to produce
different (better!) code without the vmovne instruction being tested.
I changed the test to produce vmovne and vmoveq instructions but moving
between register files in the opposite direction.  That's not quite the same
but predicated versions of those instructions weren't being tested before,
so at least the test coverage is not any worse, just different.

llvm-svn: 117333
 2010-10-26 00:02:24 +00:00
Bob Wilson
685e143630 Change if-conversion to keep track of the extra cost due to microcoded 
instructions separately from the count of non-predicated instructions.  The
instruction count is used in places to determine how many instructions to
copy, predicate, etc. and things get confused if that count includes the
extra cost for microcoded ops.

llvm-svn: 117332
 2010-10-26 00:02:21 +00:00
Bob Wilson
abe62128b5 Tidy up redundant check. 
llvm-svn: 117331
 2010-10-26 00:02:19 +00:00
Evan Cheng
2439e51388 Neuter r117193 as it causes significant post-ra scheduler compile time regression. 
llvm-svn: 117329
 2010-10-25 23:56:21 +00:00
Rafael Espindola
5fecad6a27 Produce the headers directly in the Finish method. This allows us to use 
the existing streamer methods that are endian safe.

llvm-svn: 117323
 2010-10-25 22:26:55 +00:00
Dale Johannesen
2566d39d07 An stdcall function calling a non-stdcall function 
cannot use tailcall.  PR 8461.

llvm-svn: 117322
 2010-10-25 22:17:05 +00:00
Dan Gohman
ef977ab6b6 Support TBAA attachments on calls. This is somewhat experimental. 
llvm-svn: 117317
 2010-10-25 21:38:20 +00:00
Devang Patel
fa145a94d1 Simplify. 
Do not count use of sdisel for single call instruction.

llvm-svn: 117316
 2010-10-25 21:31:46 +00:00
Owen Anderson
e5e0dcd665 Add correct encodings for NEON vabal. 
llvm-svn: 117315
 2010-10-25 21:29:04 +00:00
Dan Gohman
20a3dd4ee1 Fix chaining in TBAA's pointsToConstantMemory. 
llvm-svn: 117314
 2010-10-25 21:24:55 +00:00
Devang Patel
3779ad5d59 Add counters to count basic blocks and machine basic blocks with out of order line number info. 
Add counters to count how many basic blocks are entirely selected by fastisel.

llvm-svn: 117310
 2010-10-25 20:55:43 +00:00
Owen Anderson
3eff0b86a5 Add correct NEON encodings for vaba. 
llvm-svn: 117309
 2010-10-25 20:52:57 +00:00
Devang Patel
24a6b791b6 Add simple counter to count no. of basic blocks without any line number information. At -O0, these basic block coule cause less than optimial debugging experience. 
llvm-svn: 117307
 2010-10-25 20:45:32 +00:00
Dan Gohman
cdc30324f1 Only read one bit for testing for a readonly type, leaving the other 
bits open for future uses.

llvm-svn: 117301
 2010-10-25 20:22:29 +00:00
Daniel Dunbar
5cbb066ea3 MC/AsmParser: Fix relative precedence of {+,-} and comparison ops. 
llvm-svn: 117299
 2010-10-25 20:18:56 +00:00
Daniel Dunbar
97fa30f53b MC/AsmLexer: Fix bug in source location for Slash token. 
llvm-svn: 117298
 2010-10-25 20:18:53 +00:00
Owen Anderson
61f5b3f2dc Attempt to provide correct encodings for NEON vbit and vbif, even though we can't test them at the moment. 
llvm-svn: 117294
 2010-10-25 20:17:22 +00:00
Owen Anderson
072692331e Provide correct NEON encodings for vbsl. 
llvm-svn: 117293
 2010-10-25 20:13:13 +00:00
Jim Grosbach
1a13b873e7 imm12 operands aren't Thumb2 only, so rename the printer helper function. 
llvm-svn: 117291
 2010-10-25 20:00:01 +00:00
Dan Gohman
3bce49a02a Add a comment. 
llvm-svn: 117288
 2010-10-25 19:47:25 +00:00
Owen Anderson
59e85cbd66 Add correct instruction encodings for vbic, vorn, and vmvn. 
llvm-svn: 117282
 2010-10-25 18:43:52 +00:00
Rafael Espindola
7f67e5ad77 Add a virtual destructor. 
llvm-svn: 117280
 2010-10-25 18:38:32 +00:00
Owen Anderson
2824342fac Provide correct NEON encodings for vand, veor, and vorr. 
llvm-svn: 117279
 2010-10-25 18:28:30 +00:00
Owen Anderson
ba261b092c Add NEON encoding tests for vcgt and vacgt. 
llvm-svn: 117276
 2010-10-25 18:03:59 +00:00
Rafael Espindola
5748458e7d Add support for emitting ARM file attributes. 
llvm-svn: 117275
 2010-10-25 17:50:35 +00:00
Owen Anderson
3a5f798790 Add tests for NEON encodings of vcge and vacge. 
llvm-svn: 117274
 2010-10-25 17:49:32 +00:00
Owen Anderson
757022131f Add a warning about our inability to test the encoding of vceq with immediate zero. 
llvm-svn: 117273
 2010-10-25 17:33:02 +00:00
Jakob Stoklund Olesen
7aeb8acd65 In which I learn how to forward declare template classes. 
llvm-svn: 117272
 2010-10-25 17:27:30 +00:00
Dan Gohman
9d63075905 Update comments; BasicAA is no longer necessarily the end of the chain. 
llvm-svn: 117268
 2010-10-25 16:29:52 +00:00
Dan Gohman
67e229bec7 Reintroduce these asserts, now that BasicAA is a normal AliasAnalysis pass. 
llvm-svn: 117266
 2010-10-25 16:28:57 +00:00
Dan Gohman
96e34e87ca Fix a case where instcombine was stripping metadata (and alignment) 
from stores when folding in bitcasts.

llvm-svn: 117265
 2010-10-25 16:16:27 +00:00
Charles Davis
42270b5d54 Add a new 'hotpatch' attribute. This attribute will insert a two-byte no-op 
instruction at the beginning of each function that has the attribute, allowing
the function to be easily hooked and/or patched.

llvm-svn: 117264
 2010-10-25 15:37:09 +00:00
Duncan Sands
8119017726 ATTRIBUTE_UNUSED has been renamed to LLVM_ATTRIBUTE_UNUSED. 
Rather than rename this instance, use the cast-to-void idiom
instead.  This will hopefully fix the windows buildbots.

llvm-svn: 117262
 2010-10-25 13:10:03 +00:00
Rafael Espindola
c6e7790c4b Add X86::reloc_global_offset_table and use it to have a single place where 
we check for _GLOBAL_OFFSET_TABLE_.

llvm-svn: 117241
 2010-10-24 17:35:42 +00:00
Duncan Sands
5b25503aab Fix PR8445: a block with no predecessors may be the entry block, in which case 
it isn't unreachable and should not be zapped.  The check for the entry block
was missing in one case: a block containing a unwind instruction.  While there,
do some small cleanups: "M" is not a great name for a Function* (it would be
more appropriate for a Module*), change it to "Fn"; use Fn in more places.

llvm-svn: 117224
 2010-10-24 12:23:30 +00:00
Benjamin Kramer
86b0370b66 SmallVectorize. 
llvm-svn: 117213
 2010-10-23 17:10:24 +00:00
Eric Christopher
0dab5810aa Move rejection of NEON parameters earlier in fast isel call processing, 
note that we can actually handle some f64 arguments.

llvm-svn: 117209
 2010-10-23 09:37:17 +00:00
Benjamin Kramer
ed68a7877c Make the disassembler tables const so they end up in read-only memory. 
llvm-svn: 117206
 2010-10-23 09:10:44 +00:00
Michael J. Spencer
87c8212d41 X86: Emit _fltused instead of __fltused on Windows x64. 
llvm-svn: 117205
 2010-10-23 09:06:59 +00:00
Chandler Carruth
7dd652736f Move the remaining attribute macros to systematic names based on the attribute 
name and prefixed with 'LLVM_'.

llvm-svn: 117203
 2010-10-23 08:40:19 +00:00
Chandler Carruth
ea67aaa252 Remove a define which is never referenced. 
llvm-svn: 117202
 2010-10-23 08:25:16 +00:00
Chandler Carruth
7799a873bb Switch attribute macros to use 'LLVM_' as a prefix. We retain the old names 
until other LLVM projects using these are cleaned up.

llvm-svn: 117200
 2010-10-23 08:10:43 +00:00
Chandler Carruth
25324e76ae Fix a likely bug in an assertion by adding parentheses around '||'. This bug 
was found by a GCC warning. ;]

llvm-svn: 117199
 2010-10-23 07:46:14 +00:00
Evan Cheng
71b2f935db Enable ARM fastcc. 
llvm-svn: 117194
 2010-10-23 02:19:37 +00:00
Evan Cheng
030f55c496 Properly model the latency of register defs which are 1) function returns or 
2) live-outs.

Previously the post-RA schedulers completely ignore these dependencies since
returns, branches, etc. are all scheduling barriers. This patch model the
latencies between instructions being scheduled and the barriers. It also
handle calls by marking their register uses.

llvm-svn: 117193
 2010-10-23 02:10:46 +00:00
Evan Cheng
132906a2d3 Latency between CPSR def and branch is zero. 
llvm-svn: 117192
 2010-10-23 02:04:38 +00:00
Jakob Stoklund Olesen
964f6a6be6 Verify LiveIntervals against the CFG, ensuring that live-in values are live-out 
of all predecessors.

llvm-svn: 117191
 2010-10-23 00:49:09 +00:00