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18705 Commits

Author SHA1 Message Date
Chris Lattner 257008beff If loopextract breaks the program provide output so that we can repro the 
problem.

llvm-svn: 21790
 2005-05-08 21:54:56 +00:00
Chris Lattner 2cbd1337ce add a testcase for a case we do not handle yet 
llvm-svn: 21789
 2005-05-08 21:47:42 +00:00
Chris Lattner df3332660f Implement Reassociate/mul-neg-add.ll 
llvm-svn: 21788
 2005-05-08 21:41:35 +00:00
Chris Lattner ce7d145b20 new testcase 
llvm-svn: 21787
 2005-05-08 21:41:18 +00:00
Chris Lattner c4f8e2b0ed Bail out earlier 
llvm-svn: 21786
 2005-05-08 21:33:47 +00:00
Chris Lattner 877b114037 Teach reassociate that 0-X === X*-1 
llvm-svn: 21785
 2005-05-08 21:28:52 +00:00
Chris Lattner 90723bacb9 new testcase 
llvm-svn: 21784
 2005-05-08 21:28:33 +00:00
Chris Lattner 9f284e0a3c Fix PR557 and basictest[34].ll. 
This makes reassociate realize that loads should be treated as unmovable, and
gives distinct ranks to distinct values defined in the same basic block, allowing
reassociate to do its thing.

llvm-svn: 21783
 2005-05-08 20:57:04 +00:00
Chris Lattner f9a33ede62 new testcases for PR557 
llvm-svn: 21782
 2005-05-08 20:56:02 +00:00
Chris Lattner 9187f3905e Add debugging information 
llvm-svn: 21781
 2005-05-08 20:09:57 +00:00
Chris Lattner 08582be283 eliminate gotos 
llvm-svn: 21780
 2005-05-08 19:48:43 +00:00
Chris Lattner 9acd314ba3 Wrap long lines. Fix "warning: conflicting types for built-in function 'memset'" 
warning from the CBE+GCC.

llvm-svn: 21779
 2005-05-08 19:46:29 +00:00
Chris Lattner 5847e5e10c Improve reassociation handling of inverses, implementing inverses.ll. 
llvm-svn: 21778
 2005-05-08 18:59:37 +00:00
Chris Lattner 2f1b13255d new testcase 
llvm-svn: 21777
 2005-05-08 18:54:40 +00:00
Chris Lattner 4922118dc4 clean up and modernize this pass. 
llvm-svn: 21776
 2005-05-08 18:45:26 +00:00
Chris Lattner b18dbbfff5 Strength reduce SAR into SHR if there is no way sign bits could be shifted 
in.  This tends to get cases like this:

  X = cast ubyte to int
  Y = shr int X, ...

Tested by: shift.ll:test24

llvm-svn: 21775
 2005-05-08 17:34:56 +00:00
Chris Lattner 5140c15f08 new testcase 
llvm-svn: 21774
 2005-05-08 17:31:24 +00:00
Jeff Cohen b127267a5a Update my info 
llvm-svn: 21773
 2005-05-08 01:07:48 +00:00
Chris Lattner e1850b86b6 Refactor some code 
llvm-svn: 21772
 2005-05-08 00:19:31 +00:00
Chris Lattner 6e2086d7e4 Handle some simple cases where we can see that values get annihilated. 
llvm-svn: 21771
 2005-05-08 00:08:33 +00:00
Chris Lattner 4294cec0f1 Fix a miscompilation of crafty by clobbering the "A" variable. 
llvm-svn: 21770
 2005-05-07 23:49:08 +00:00
Chris Lattner 041f8b59c1 Move licm after reassociate, add some cond-propagate passes 
llvm-svn: 21769
 2005-05-07 22:45:35 +00:00
Chris Lattner 1e5065052a Rewrite the guts of the reassociate pass to be more efficient and logical. Instead 
of trying to do local reassociation tweaks at each level, only process an expression
tree once (at its root).  This does not improve the reassociation pass in any real way.

llvm-svn: 21768
 2005-05-07 21:59:39 +00:00
Reid Spencer f2ff439c4b * Break tests into individual cases so its easier to see what's going on. 
* Add four new cases to handle the new optimizations for strlen, dealing
  with:
    strlen(x) != 0 -> *x != 0
    strlen(x) == 0 -> *x == 0
  for each of two cases: strlen(x) != 0 and strlen(x) == 0

llvm-svn: 21767
 2005-05-07 20:21:04 +00:00
Reid Spencer 170ae7ff70 * Add two strlen optimizations: 
strlen(x) != 0 -> *x != 0
    strlen(x) == 0 -> *x == 0
* Change nested statistics to use style of other LLVM statistics so that
  only the name of the optimization (simplify-libcalls) is used as the
  statistic name, and the description indicates which specific all is
  optimized. Cuts down on some redundancy and saves a few bytes of space.
* Make note of stpcpy optimization that could be done.

llvm-svn: 21766
 2005-05-07 20:15:59 +00:00
Reid Spencer 4f01a822b4 Don't increment the counter unless the debug flag is set. 
llvm-svn: 21762
 2005-05-07 04:59:45 +00:00
Chris Lattner cea579932d Convert shifts to muls to assist reassociation. This implements 
Reassociate/shifttest.ll

llvm-svn: 21761
 2005-05-07 04:24:13 +00:00
Chris Lattner 30555b0d14 test that reassociate can handle shifts 
llvm-svn: 21760
 2005-05-07 04:23:29 +00:00
Chris Lattner f43e974abd Simplify the code and rearrange it. No major functionality changes here. 
llvm-svn: 21759
 2005-05-07 04:08:02 +00:00
Jeff Cohen 6dc6672840 Silence VC++ warnings about unsafe mixing of ints and bools with the | operator. 
llvm-svn: 21758
 2005-05-07 02:44:04 +00:00
Chris Lattner b34b273386 add note about bit builtins newly supported 
llvm-svn: 21757
 2005-05-07 02:21:21 +00:00
Chris Lattner 6ea3be51f8 new testcase 
llvm-svn: 21756
 2005-05-07 02:16:08 +00:00
Chris Lattner 573f64ecb5 fix bugs in my previous commit clarify the return type of the bit ops 
llvm-svn: 21755
 2005-05-07 01:46:40 +00:00
Chris Lattner c792eb342c add a couple of notes 
llvm-svn: 21754
 2005-05-06 23:08:23 +00:00
Chris Lattner 0132affa89 document calling convention extensions 
llvm-svn: 21753
 2005-05-06 22:57:40 +00:00
Chris Lattner 9bbe58628b remove some dead (always dynamically false) flags 
llvm-svn: 21752
 2005-05-06 22:35:09 +00:00
Chris Lattner 129535c787 encode calling conventions for call/invoke instructions. 
llvm-svn: 21751
 2005-05-06 22:34:01 +00:00
Chris Lattner f71853e277 new testcase 
llvm-svn: 21750
 2005-05-06 22:33:44 +00:00
Chris Lattner f2e1c1969f encode function calling convs in the bytecode file. invoke and call are 
still to come.

llvm-svn: 21749
 2005-05-06 20:42:57 +00:00
Chris Lattner 53bdd31211 parse new calling conv specifiers 
llvm-svn: 21748
 2005-05-06 20:27:19 +00:00
Chris Lattner b25b6304b7 wrap a longline 
llvm-svn: 21747
 2005-05-06 20:27:03 +00:00
Chris Lattner f7b6d3191b add support for explicit calling conventions 
llvm-svn: 21746
 2005-05-06 20:26:43 +00:00
Chris Lattner 4147522d71 Add support for explicit calling conventions 
llvm-svn: 21745
 2005-05-06 20:26:26 +00:00
Chris Lattner e29e1ff1e8 New file 
llvm-svn: 21744
 2005-05-06 19:59:08 +00:00
Chris Lattner 6d817c5486 use splice instead of remove/insert for a minor speedup 
llvm-svn: 21743
 2005-05-06 19:58:35 +00:00
Chris Lattner 6409f3490a remove some ugly hacks that are no longer needed since andrew removed the 
varargs munging code

llvm-svn: 21742
 2005-05-06 19:49:51 +00:00
Chris Lattner 7effa0ed06 BAD typeo which caused many testsuite failures last night. Note to self, do 
not change code after testing it without retesting!

llvm-svn: 21741
 2005-05-06 17:13:16 +00:00
Chris Lattner 18335f8925 clean up the CBE output a bit 
llvm-svn: 21740
 2005-05-06 06:58:42 +00:00
Chris Lattner 561b7eb9e1 add tail marker as a comment 
llvm-svn: 21739
 2005-05-06 06:53:07 +00:00
Chris Lattner ec7773e9e8 Make the stub functions be tail calls 
llvm-svn: 21738
 2005-05-06 06:48:54 +00:00