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Author SHA1 Message Date
Evan Cheng
a8b9a7b924 Temporarily set SROA threshold to 512. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39950 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-17 01:52:05 +00:00
Owen Anderson
ce17b1c1f8 Take advantage of undefined behavior if the source program tries to GEP 
beyond the end of an alloca to make FastDSE faster and more aggressive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39945 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 23:34:39 +00:00
Reid Spencer
162c518286 Normally, we don't want to install and we only need to build tools. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39944 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 23:25:52 +00:00
Reid Spencer
3b52308476 No, we're not looking for a directory named /config.status. 
Sigh .. fix copy & paste error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39939 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 22:54:42 +00:00
Reid Spencer
8c88b6de62 In ModuleInfo.txt, make sure that the script being executed can be 
found by prepending a .
In build-for-llvm-top.sh, dereference variables for exansion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39936 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 22:25:13 +00:00
Reid Spencer
e68da83d49 Prepare for the future when llvm doesn't depend on llvm-gcc-4-0. 
This also avoids a fork bomb from the llvm-top/build script which
doesn't know how to handle cycles in the dependence graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39933 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 22:11:02 +00:00
Reid Spencer
63d6d7385f Remove insignificant test no longer needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39931 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 22:03:36 +00:00
Owen Anderson
faac518ce0 Add support for walking up memory def chains, which enables finding many more 
dead stores on 400.perlbench.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:52:50 +00:00
Owen Anderson
1629a1fa87 Use realloc() to (potentially) resize the contents of SmallPtrSet in place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39926 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:27:44 +00:00
Reid Spencer
bde6869ef4 Return Undef if the block has no dominator. This was required to allow 
llvm-gcc build to succeed. Without this change it fails in libstdc++
compilation. This causes no regressions in dejagnu tests. However, 
someone who knows this code better might want to review it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39924 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 21:03:44 +00:00
Dan Gohman
384152444d Use ConstantFoldFP for folding all unary floating-point operations which may 
have an error, and refector out the code for binary operators into
ConstantFoldBinaryFP and use it for all binary floating-point operations
which may have an error. These functions still rely exclusively on errno
to detect errors though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39923 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 15:26:22 +00:00
Dan Gohman
d6257fe581 Fix the documentation for llvm.sqrt so that sqrt(0) has defined behavior, 
which appears to be the intent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39922 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:37:41 +00:00
Dan Gohman
07a96765da Fix comments about vectors to use the current wording. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 14:29:03 +00:00
Dan Gohman
318f0dee83 Remove the trailing semicolon from function declarations in LLVM, 
where it's interpreted as a comment, not part of the syntax.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39920 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 13:37:30 +00:00
Bill Wendling
18bf0d01b6 Fix validation errors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39917 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 08:52:56 +00:00
Bill Wendling
22e37c3f7f Clean up some formatting 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39916 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 08:46:40 +00:00
Bill Wendling
77f7469981 Clean up some formatting. Add some doc_code div tags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39915 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 08:44:39 +00:00
Reid Spencer
09d0594d0b Prepare for building from llvm-top. Unfortunately, this doesn't work because 
of the cyclic depndency between llvm and llvm-gcc-4-0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39910 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 08:05:18 +00:00
Chris Lattner
cb7122bb7d Repair a regression in Transforms/InstCombine/mul.ll that Reid noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39896 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 04:15:34 +00:00
Chris Lattner
e2ece3f479 rename function to avoid llvm-upgrade warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39895 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 04:09:00 +00:00
Nick Lewycky
5380e941ef Start adding and cleaning up comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39894 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 02:58:37 +00:00
Nick Lewycky
eefdebe002 Handle decrementing loops properly. Fixes PR1533. 
Always pass the constant as the second parameter to HowManyLessThans.

Remove obsolete "isSigned" parameter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-16 02:08:00 +00:00
Chris Lattner
f7b71c64cf add a helper method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39885 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 23:32:03 +00:00
Chris Lattner
04d519e160 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39882 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 22:30:34 +00:00
Chris Lattner
4241e4da85 Implement shift-simplify.ll:test[45]. 
First teach instcombine that sign bit checks only demand the 
sign bit, this allows simplify demanded bits to hack on 
expressions better.

Second, teach instcombine that ashr is useless if only the
sign bit is demanded.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39880 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 20:54:51 +00:00
Chris Lattner
a0141b90a3 Implement shift-simplify.ll:test3, turning: 
(X << 31) <s 0  --> (X&1) != 0

This happens dozens of times in the CFE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39879 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-15 20:42:37 +00:00
Nick Lewycky
28753f8df2 Clarify the language. Pointed out by Duncan Sands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39857 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 17:41:03 +00:00
Nick Lewycky
6d4b711e7f Fix the build. Patch from Holger Schurig. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39856 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 15:11:14 +00:00
Anton Korobeynikov
2365f51ed0 Long live the exception handling! 
This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 14:06:15 +00:00
Nick Lewycky
a73d11efd4 Use maximal intersection algorithm exclusively. Fixes miscompile bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39852 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 04:28:04 +00:00
Nick Lewycky
377b1190cb Add alternate ConstantRange intersection algorithm. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39851 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-14 02:51:34 +00:00
Evan Cheng
7722ceb7de Added test case from PR1540. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39845 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:57:33 +00:00
Devang Patel
b4559a2179 Make LCSSA a loop pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:57:11 +00:00
Evan Cheng
03494d7c8f Fix for PR1540: Specify F0, F1 are sub-registers of D0, etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39843 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 23:55:50 +00:00
Owen Anderson
a08971559d Handle GEPs with all-zero indices in the same way we handle pointer-pointer bitcasts. Also, fix a potentia infinite loop. 
This brings FastDSE to parity with old DSE on 175.vpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39839 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 22:50:48 +00:00
Devang Patel
fba36b8cba Disable claims to preserve analysis until open issues are resolved. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39834 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 21:53:42 +00:00
Dan Gohman
3bf6e183d5 Eliminate an unused parameter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39828 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:16:50 +00:00
Dan Gohman
a346615d11 Fix the comment for LegalizeOp to more accurately reflect what it does. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:14:11 +00:00
Chris Lattner
744ff41e0e remove obsolete note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39825 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:08:19 +00:00
Dan Gohman
05d92fe7c4 Don't call SimplifyVBinOp for non-vector operations, following earlier review 
feedback. This theoretically makes the common (scalar) case more efficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:03:40 +00:00
Chris Lattner
3e63a9d52c fix some bugs in the manual 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 20:01:46 +00:00
Owen Anderson
3e8d001799 Be more aggressive in removing dead stores, and in removing instructions trivially dead after DSE. 
This drastically improves the effect of FastDSE on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 18:26:26 +00:00
Dale Johannesen
72f1596403 Modify previous patch per review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39817 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:31:29 +00:00
Dale Johannesen
e7e7d0d7e3 Skeleton of post-RA scheduler; doesn't do anything yet. 
Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 17:13:54 +00:00
Chris Lattner
8dc4b59b85 Fix CodeGen/Generic/print-arith-fp.ll on sparc (PR1551) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39813 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 16:24:10 +00:00
Gabor Greif
7f6d4e8b6b these tests do not need a triple on Solaris. Thanks sabre! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39803 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 10:08:18 +00:00
Reid Spencer
96cf58777b Regenerate to pick up Gabor's changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39802 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 10:05:30 +00:00
Reid Spencer
28522b3bfd Set the mime-type of this file to text/plain because (silly) SVN 
doesn't know that application/x-sh is text.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 10:02:45 +00:00
Gabor Greif
f70414f3d0 * llvm.spec.in: update blurb 
* autoconf/AutoRegen.sh: use variables for autofoo versions
* autoconf/configure.ac: test for some more functions
                         that are not guaranteed on solaris

Note: the svn:mime-type of autoconf/AutoRegen.sh
      should be set to something that allows for
			text compares using svn diff


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39800 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-13 09:48:29 +00:00
Owen Anderson
43b2676cc2 Reimplement removing stores to allocas at the end of a function. This should be safe now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39790 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-07-12 21:41:30 +00:00