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32756 Commits

Author SHA1 Message Date
Dale Johannesen d750b46f8b tail merging shrinks this code a bit. Could do more in future. 
llvm-svn: 37316
 2007-05-23 21:09:26 +00:00
Dale Johannesen f4a77d2481 Two tail merging improvements: 
When considering blocks with more than 2 predecessors, merge the block with
the largest number of matching insns, rather than the first block found.
Considering that 1 matching insn is enough to show a win for candidates that
already end with a branch.

llvm-svn: 37315
 2007-05-23 21:07:20 +00:00
Devang Patel d50859e87b Add dump() routines for debugging assistance. 
llvm-svn: 37314
 2007-05-23 19:55:36 +00:00
Anton Korobeynikov 3b327826db Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 
llvm-svn: 37311
 2007-05-23 11:08:31 +00:00
Chris Lattner 6509c0673f prevent exponential recursion in isNegatibleForFree 
llvm-svn: 37310
 2007-05-23 07:35:22 +00:00
Evan Cheng d0e669199b Preliminary iterative if-conversion support. 
llvm-svn: 37309
 2007-05-23 07:23:16 +00:00
Evan Cheng 1d764eca98 Hooks for predication support. 
llvm-svn: 37308
 2007-05-23 07:22:05 +00:00
Evan Cheng c972de8c8b Rename a parameter. 
llvm-svn: 37307
 2007-05-23 07:21:11 +00:00
Evan Cheng 1e25f56508 Add a couple of target hooks for predication. 
llvm-svn: 37306
 2007-05-23 07:19:12 +00:00
Chris Lattner 688b2807df when merging two alias sets together, be sure to propagate the volatility of 
the inner set.  This fixes PR1435 and Transforms/LICM/2007-05-22-VolatileSink.ll

llvm-svn: 37305
 2007-05-23 06:36:35 +00:00
Chris Lattner e44b6a6aaf new testcase for PR1435 
llvm-svn: 37304
 2007-05-23 06:35:52 +00:00
Chris Lattner c7e60517ed make these accessors private. 
llvm-svn: 37302
 2007-05-23 05:46:04 +00:00
Devang Patel 4d01a7b1b5 If user wants to run instcombine twice, do not block it. 
llvm-svn: 37301
 2007-05-23 05:08:52 +00:00
Chris Lattner bee7b32ef8 final updates 
llvm-svn: 37299
 2007-05-23 04:39:32 +00:00
Chris Lattner f79577d314 fix a miscompilation when passing a float through varargs 
llvm-svn: 37297
 2007-05-23 01:17:04 +00:00
Reid Spencer c23c9fce34 The Intrinsic::getDeclaration function's Tys parameter only contains the 
types of the iAny types involved in the overloaded intrinsic. Thus, we
can't use the argument number as the index but have to count them separately
in order to index Tys correctly. This patch rectifies this situation.

llvm-svn: 37296
 2007-05-22 19:30:31 +00:00
Reid Spencer bdf03b4174 Reinstate the patch for escaping non-printing characters and allow for 
\\ to escape \. All these cases are now handled by the AsmParser.

llvm-svn: 37295
 2007-05-22 19:27:35 +00:00
Reid Spencer c5cec2a4e8 Regenerate. 
llvm-svn: 37294
 2007-05-22 19:08:16 +00:00
Reid Spencer 0f656c39e1 Don't allow the UnEscape code to read or write beyond the end of yytext. 
Make sure we convert \\ into \.

llvm-svn: 37293
 2007-05-22 19:07:45 +00:00
Reid Spencer acfe667eab Regenerate. 
llvm-svn: 37292
 2007-05-22 18:52:55 +00:00
Reid Spencer 3b208cca84 Implement full unescaping of escaped hex characters in all quoted identifiers 
and strings.

llvm-svn: 37291
 2007-05-22 18:52:21 +00:00
Dale Johannesen 10c5ccc68f Document boolOrDefault and its parser. 
llvm-svn: 37290
 2007-05-22 18:32:34 +00:00
Dale Johannesen f9cbdc676c name change requested by review of previous patch 
llvm-svn: 37289
 2007-05-22 18:31:04 +00:00
Owen Anderson 0ae7eb5e7c Silence a warning. 
llvm-svn: 37288
 2007-05-22 18:13:40 +00:00
Dale Johannesen a7120dde08 new testcases for -enable-tail-merge default handling 
llvm-svn: 37287
 2007-05-22 17:19:23 +00:00
Dale Johannesen 80fae16a06 Test assumes tail merging is off; this must now be explicit. 
llvm-svn: 37286
 2007-05-22 17:18:05 +00:00
Dale Johannesen 82810c8a13 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.

llvm-svn: 37285
 2007-05-22 17:14:46 +00:00
Chris Lattner 83d7dd419a temporarily revert reid's asmwriter patch, it is missing the asmparser piece 
that decodes the escape sequences, thus breaking all cases that use them.

This fixes test/Assembler/2007-05-21-Escape.ll

llvm-svn: 37284
 2007-05-22 07:00:50 +00:00
Chris Lattner 9a0ff5961b new testcase for a recent regression 
llvm-svn: 37283
 2007-05-22 07:00:38 +00:00
Chris Lattner 77119f43af update comment 
llvm-svn: 37282
 2007-05-22 06:56:32 +00:00
Chris Lattner 31ab0ed37f regenerate 
llvm-svn: 37281
 2007-05-22 06:47:55 +00:00
Chris Lattner 9111cd6b8a simplify code 
llvm-svn: 37280
 2007-05-22 06:47:11 +00:00
Tanya Lattner 3e85207fef NightlyTest.pl does not exist. 
llvm-svn: 37278
 2007-05-22 06:12:51 +00:00
Tanya Lattner e94a09e357 Adding 2.0 release 
llvm-svn: 37277
 2007-05-22 06:06:22 +00:00
Bill Wendling 3fb7fdfded We only need to specify the most-implied feature for an architecture. 
llvm-svn: 37275
 2007-05-22 05:15:37 +00:00
Evan Cheng 1933bbc735 Consistency. 
llvm-svn: 37274
 2007-05-22 01:21:58 +00:00
Evan Cheng 204af78b96 Add test for PR1259. 
llvm-svn: 37273
 2007-05-21 23:30:33 +00:00
Evan Cheng 8c8afb27d7 Fix some -march=thumb regressions. tBR_JTr is not predicable. 
llvm-svn: 37272
 2007-05-21 23:17:32 +00:00
Dale Johannesen d1de276c16 Use AXI3 not AXI2 for appropriate PIC PC-relative loads and stores. Cosmetic. 
llvm-svn: 37271
 2007-05-21 22:42:04 +00:00
Evan Cheng e26c0916a3 If-convert early exit blocks (returns, etc.); bug fixes, etc. 
llvm-svn: 37270
 2007-05-21 22:22:58 +00:00
Dale Johannesen 7d55f3733e Add some patterns for PIC PC-relative loads and stores. 
llvm-svn: 37269
 2007-05-21 22:14:33 +00:00
Evan Cheng 147b334b6a BlockHasNoFallThrough() now returns true if block ends with a return instruction; AnalyzeBranch() should ignore predicated instructionsd. 
llvm-svn: 37268
 2007-05-21 18:56:31 +00:00
Duncan Sands 34e82a4508 Only emit one entry in the exception action table for each action, even if 
it occurs for multiple landing pads.

llvm-svn: 37267
 2007-05-21 18:50:28 +00:00
Evan Cheng fc94eb66d2 BlockHasNoFallThrough() now returns true if block ends with a return instruction. 
llvm-svn: 37266
 2007-05-21 18:44:17 +00:00
Bill Wendling ee854630e4 Update 
llvm-svn: 37265
 2007-05-20 19:56:24 +00:00
Reid Spencer e44b45e757 Get the order of the hext digits right! 
llvm-svn: 37261
 2007-05-19 14:44:42 +00:00
Reid Spencer 6473fb7916 Adjust how LLVM names are produced: 
1. Always use % for local and @ for global.
2. Replace NameNeedsQuotes with QuoteNameIfNeeded so that any adjustments
   to the name can be done in one pass.
3. Implement generation of hex escapes so we don't get "wonky" characters
   in the output.

llvm-svn: 37260
 2007-05-19 07:25:21 +00:00
Reid Spencer be9b3fce8a Make sure we can round-trip an escaped value in a name. 
llvm-svn: 37259
 2007-05-19 07:22:24 +00:00
Reid Spencer 21526d6b56 Regenerate 
llvm-svn: 37258
 2007-05-19 07:22:10 +00:00
Reid Spencer aba0cc7173 Make the %"..." syntax legal for local name. This just makes it symmetric 
with global names which can already be @"..."

llvm-svn: 37257
 2007-05-19 07:21:26 +00:00