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Commit Graph

18713 Commits

Author SHA1 Message Date
Chris Lattner
f535f6e808 Bail out earlier
llvm-svn: 21786
2005-05-08 21:33:47 +00:00
Chris Lattner
39f74def7f Teach reassociate that 0-X === X*-1
llvm-svn: 21785
2005-05-08 21:28:52 +00:00
Chris Lattner
0fb59cec82 new testcase
llvm-svn: 21784
2005-05-08 21:28:33 +00:00
Chris Lattner
319ac8f822 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
ab1fdcec7d new testcases for PR557
llvm-svn: 21782
2005-05-08 20:56:02 +00:00
Chris Lattner
b5de308c5f Add debugging information
llvm-svn: 21781
2005-05-08 20:09:57 +00:00
Chris Lattner
e74082156b eliminate gotos
llvm-svn: 21780
2005-05-08 19:48:43 +00:00
Chris Lattner
6d85b91b24 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
a9d5fdd4fd Improve reassociation handling of inverses, implementing inverses.ll.
llvm-svn: 21778
2005-05-08 18:59:37 +00:00
Chris Lattner
d7a835fcba new testcase
llvm-svn: 21777
2005-05-08 18:54:40 +00:00
Chris Lattner
afbdc0b969 clean up and modernize this pass.
llvm-svn: 21776
2005-05-08 18:45:26 +00:00
Chris Lattner
7b41539f32 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
5fe4e982b8 new testcase
llvm-svn: 21774
2005-05-08 17:31:24 +00:00
Jeff Cohen
913578a3e1 Update my info
llvm-svn: 21773
2005-05-08 01:07:48 +00:00
Chris Lattner
c2670a0da6 Refactor some code
llvm-svn: 21772
2005-05-08 00:19:31 +00:00
Chris Lattner
cd7caaa866 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
1e84d885b7 Fix a miscompilation of crafty by clobbering the "A" variable.
llvm-svn: 21770
2005-05-07 23:49:08 +00:00
Chris Lattner
ae62d64e6c Move licm after reassociate, add some cond-propagate passes
llvm-svn: 21769
2005-05-07 22:45:35 +00:00
Chris Lattner
5662127ed6 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
bd4efef3eb * 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
b4fdf14d34 * 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
65d553cd03 Don't increment the counter unless the debug flag is set.
llvm-svn: 21762
2005-05-07 04:59:45 +00:00
Chris Lattner
3edf09a5eb 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
e265bf6fe5 test that reassociate can handle shifts
llvm-svn: 21760
2005-05-07 04:23:29 +00:00
Chris Lattner
b1ea71fbcd Simplify the code and rearrange it. No major functionality changes here.
llvm-svn: 21759
2005-05-07 04:08:02 +00:00
Jeff Cohen
eafa15885e 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
fc887cc3da add note about bit builtins newly supported
llvm-svn: 21757
2005-05-07 02:21:21 +00:00
Chris Lattner
d6906dc6af new testcase
llvm-svn: 21756
2005-05-07 02:16:08 +00:00
Chris Lattner
b25579d09b 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
069d6762aa add a couple of notes
llvm-svn: 21754
2005-05-06 23:08:23 +00:00
Chris Lattner
5ba10fa79c document calling convention extensions
llvm-svn: 21753
2005-05-06 22:57:40 +00:00
Chris Lattner
f6775e16bf remove some dead (always dynamically false) flags
llvm-svn: 21752
2005-05-06 22:35:09 +00:00
Chris Lattner
1f6d3b2344 encode calling conventions for call/invoke instructions.
llvm-svn: 21751
2005-05-06 22:34:01 +00:00
Chris Lattner
d1e76535b2 new testcase
llvm-svn: 21750
2005-05-06 22:33:44 +00:00
Chris Lattner
494f3da7b3 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
562734e130 parse new calling conv specifiers
llvm-svn: 21748
2005-05-06 20:27:19 +00:00
Chris Lattner
de5b492521 wrap a longline
llvm-svn: 21747
2005-05-06 20:27:03 +00:00
Chris Lattner
26a44493ef add support for explicit calling conventions
llvm-svn: 21746
2005-05-06 20:26:43 +00:00
Chris Lattner
d2dfcb3c0e Add support for explicit calling conventions
llvm-svn: 21745
2005-05-06 20:26:26 +00:00
Chris Lattner
b1952fe785 New file
llvm-svn: 21744
2005-05-06 19:59:08 +00:00
Chris Lattner
0995b3da02 use splice instead of remove/insert for a minor speedup
llvm-svn: 21743
2005-05-06 19:58:35 +00:00
Chris Lattner
146014b748 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
c9be572154 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
1bc2753d69 clean up the CBE output a bit
llvm-svn: 21740
2005-05-06 06:58:42 +00:00
Chris Lattner
f70b2785b7 add tail marker as a comment
llvm-svn: 21739
2005-05-06 06:53:07 +00:00
Chris Lattner
4e9d804f1d Make the stub functions be tail calls
llvm-svn: 21738
2005-05-06 06:48:54 +00:00
Chris Lattner
146447f57a Preserve tail marker
llvm-svn: 21737
2005-05-06 06:48:21 +00:00
Chris Lattner
0187977904 Implement Transforms/Inline/inline-tail.ll
llvm-svn: 21736
2005-05-06 06:47:52 +00:00
Chris Lattner
170a0f7d6b Make sure to not accidentally get a bogus tail marker
llvm-svn: 21735
2005-05-06 06:47:37 +00:00
Chris Lattner
3d4098b1e0 preserve the tail marker
llvm-svn: 21734
2005-05-06 06:46:58 +00:00