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3099 Commits

Author SHA1 Message Date
Chris Lattner
bb9a041100 remove reoptimizer-specific passes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-20 05:31:49 +00:00
Chris Lattner
ec1f752ae4 eliminate use of deprecated apis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34417 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-19 07:34:47 +00:00
Chris Lattner
4a6f363491 fix comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34395 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-18 22:10:58 +00:00
Chris Lattner
eb47391994 simplify pass, delete dead gvar protos as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34394 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-18 22:10:34 +00:00
Chris Lattner
535014f8ec convert more vectors to smallvectors, 2.8% speedup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34333 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 22:52:10 +00:00
Chris Lattner
72588fc3f4 change some vectors to smallvectors. This speeds up instcombine on 447.dealII 
by 5%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34332 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 22:48:32 +00:00
Chris Lattner
1f87a58ab2 switch an std::set to a SmallPtr set, this speeds up instcombine by 9.5% 
on 447.dealII


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34323 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 19:41:52 +00:00
Reid Spencer
ac9dcb94dd For PR1195: 
Change use of "packed" term to "vector" in comments, strings, variable
names, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34300 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 03:39:18 +00:00
Reid Spencer
d29b8b85ce Change an assert that mentions Packed Type -> Vector Type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34298 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 03:11:20 +00:00
Reid Spencer
9d6565a5b1 For PR1195: 
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-15 02:26:10 +00:00
Chris Lattner
d2b7cec527 Generalize TargetData strings, to support more interesting forms of data. 
Patch by Scott Michel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34266 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-14 05:52:17 +00:00
Chris Lattner
c18470cb00 eliminate a bunch of vector-related heap traffic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34222 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 05:58:53 +00:00
Chris Lattner
93e985f1b1 Eliminate use of ctors that take vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34219 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-13 02:10:56 +00:00
Chris Lattner
1ccd185cb4 stop using methods that take vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34205 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-12 22:56:41 +00:00
Chris Lattner
dec628eead Switch ValueSymbolTable to use StringMap<Value*> instead of std::map<std::string, Value*> 
as its main datastructure.  There are many improvements yet to be made, but
this speeds up opt --std-compile-opts on 447.dealII by 7.3%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-12 05:18:08 +00:00
Chris Lattner
86cc423555 simplify code by using Value::takeName 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 01:37:51 +00:00
Chris Lattner
6934a04a8c Simplify code by using value::takename 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34176 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 01:23:03 +00:00
Chris Lattner
046800a712 simplify name juggling through the use of Value::takeName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34175 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-11 01:08:35 +00:00
Chris Lattner
b1919e2f08 Privatize StructLayout::MemberOffsets, adding an accessor 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34156 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-10 19:55:17 +00:00
Chris Lattner
3cfc1d22b2 Fix Transforms/DeadArgElim/2007-02-07-FuncRename.ll, fallout from PR411. 
This happened because deadargelim now causes VMCore to auto-rename every
function that it hacks arguments out of.  Because it hacks arguments out of
functions in a non-deterministic order, this caused the resultant numbering
to be nondet.  The fix is to just be careful to not rename functions!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34005 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 19:31:33 +00:00
Chris Lattner
7f1444bc0a shrink vmcore by moving symbol table stripping support out of VMCore into 
the one IPO pass that uses it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33990 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 06:22:45 +00:00
Chris Lattner
dfb22c3521 redesign the primary datastructure used by mem2reg to eliminate an 
std::map of std::vector's (ouch!).  This speeds up mem2reg by 10% on 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33974 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-07 01:15:04 +00:00
Chris Lattner
d3874049a5 With the last change, we no longer need both directions of mapping from 
BBNumbers.  Instead of using a bi-directional mapping, just use a single
densemap.  This speeds up mem2reg on 176.gcc by 8%, from  1.3489 to
1.2485s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33940 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 23:37:20 +00:00
Reid Spencer
9133fe2895 Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in 
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33939 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 23:32:05 +00:00
Chris Lattner
a0d1548d0d Simplify use of DFBlocks, this makes no noticable performance difference, 
but paves the way to eliminate BBNumbers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33938 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 23:31:26 +00:00
Reid Spencer
59d043bc8c This file should have been removed when -raise was removed. It isn't 
used any more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33937 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 23:27:02 +00:00
Chris Lattner
6a1a28dedd Switch InsertedPHINodes back to SmallPtrSet now that the SmallPtrSet::erase 
bug is fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33932 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 23:11:37 +00:00
Chris Lattner
fc7d13d898 switch a SmallPtrSet back to an std::set for now, this caused problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33930 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 22:28:52 +00:00
Chris Lattner
c670f3da72 switch an std::set over to a SmallPtrSet, speeding up mem2reg 6% on 176.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 22:15:21 +00:00
Chris Lattner
c837615cf0 switch an std::set over to SmallPtrSet, speeding up mem2reg 3.4% on 176.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33928 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 22:13:11 +00:00
Chris Lattner
40b6555561 eliminate some malloc traffic, this speeds up mem2reg by 3.4%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33927 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 21:58:48 +00:00
Reid Spencer
7ea07659a1 Add missing and needed #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33926 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 21:47:39 +00:00
Reid Spencer
9153a6729f Make the class VISIBILITY_HIDDEN. 
Reduce lexical size of the anonymous namespace.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33925 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 21:45:12 +00:00
Reid Spencer
688b0490e2 For PR411: 
Adjust to changes in Module interface:
getMainFunction() -> getFunction("main")
getNamedFunction(X) -> getFunction(X)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33922 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 21:19:13 +00:00
Reid Spencer
ef9b9a7939 For PR411: 
This patch replaces the SymbolTable class with ValueSymbolTable which does
not support types planes. This means that all symbol names in LLVM must now
be unique. The patch addresses the necessary changes to deal with this and
removes code no longer needed as a result. This completes the bulk of the
changes for this PR. Some cleanup patches will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33918 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 20:47:22 +00:00
Reid Spencer
15468bfc22 For PR411: 
This pass is no longer needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33917 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 20:41:05 +00:00
Reid Spencer
c19fbd6ec8 Create a pass to strip dead function declarations (prototypes). This is 
for use by llvm-extract and bugpoint.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33916 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 20:24:25 +00:00
Chris Lattner
b0b991a2c8 Fix miscompilations of consumer-typeset, telecomm-gsm, and 176.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33902 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 05:57:49 +00:00
Reid Spencer
0974ea0911 For PR1177: 
Revert last patch which caused iteration invalidation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33901 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 05:23:32 +00:00
Chris Lattner
4f3ebab172 fix a miscompilation of 176.gcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33900 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 04:09:35 +00:00
Owen Anderson
93235181d6 Use DenseMap for pointer->pointer maps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33897 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 02:39:47 +00:00
Chris Lattner
b87056f111 rewrite shift/shift folding, now that types are not signed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33892 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-05 00:57:54 +00:00
Nick Lewycky
4535175328 Fix indenting, remove tabs. 
Learn from sext and zext. The destination value falls within the range of the
source type.

Generalize properties regarding constant ints.

Get smarter about marking blocks as unreachable. If 1 >= 2 in order for this
block to execute, then it isn't reachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33889 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-04 23:43:05 +00:00
Reid Spencer
6734b57d1b For PR1163: 
Make the Module's dependent library use a std::vector instead of SetVector
adjust #includes in .cpp files because SetVector.h is no longer included.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33855 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-04 00:40:42 +00:00
Chris Lattner
7f3da2dd13 remove some dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33845 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 23:28:07 +00:00
Reid Spencer
7ba98a9000 For PR1072: 
Removing -raise has neglible positive or negative side effects so we are
opting to remove it. See the PR for comparison details.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33844 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 23:15:56 +00:00
Chris Lattner
5e665f5594 Switch inliner over to use DenseMap instead of std::map for ValueMap. This 
speeds up the inliner 16%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33801 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-03 00:08:31 +00:00
Chris Lattner
c1ec780d1e Switch this back to using an std::map. DenseMap entries are getting invalidated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33799 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 22:36:16 +00:00
Chris Lattner
1c1f112f74 Remove more malloc thrashing, this speeds up IPSCCP on kimwitu another 6.7%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 21:15:06 +00:00
Chris Lattner
cc56aad06d Convert an std::set to SmallSet, this speeds up IPSCCP 17% on kimwitu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33794 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:57:39 +00:00
Chris Lattner
e777ff21b0 eliminate a malloc/free for (almost) every GEP processed. This speeds up 
IPSCCP 3.3% on kimwitu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33793 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:51:48 +00:00
Chris Lattner
b59673e650 switch hash_map's over to DenseMap in SCCP. This speeds up SCCP by 30% in 
a release-assert build on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:38:30 +00:00
Reid Spencer
a07cb7def5 Remove dead code and fix indentation per Chris' review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33785 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 14:41:37 +00:00
Reid Spencer
cc46cdb47c Use short form of binary operator create functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33783 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 14:08:20 +00:00
Chris Lattner
0737c24053 bugfix for reid's shift patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33779 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 05:29:55 +00:00
Reid Spencer
832254e1c2 Changes to support making the shift instructions be true BinaryOperators. 
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 02:16:23 +00:00
Chris Lattner
fd905caa77 Fix Transforms/InstCombine/2007-02-01-LoadSinkAlloca.ll, a serious code 
pessimization where instcombine can sink a load (good for code size) that
prevents an alloca from being promoted by mem2reg (bad for everything).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33771 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 22:30:07 +00:00
Reid Spencer
8282e3f92b Ensure that ConvertOperandToType generates a result conversion by 
initializing the Res variable to 0 and asserting it is not zero after the
result should have been created.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 19:14:51 +00:00
Chris Lattner
8e8eda78cc Fix bugs in the inliner having to do with single-entry phi nodes and valuemap 
updating.  These were exposed by Devang's recent passmgr changes (with
non-default passorderings) because now the inliner can be interleved with
the LCSSA pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 18:48:38 +00:00
Chris Lattner
fbbe92f5fd remove temporary vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33715 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 20:08:52 +00:00
Chris Lattner
20066f936c eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 20:07:32 +00:00
Chris Lattner
699d144a4b eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:59:55 +00:00
Chris Lattner
a88d6ca6f9 Revert another incorrectly applied chunk, which fixes InstCombine/vec_insert_to_shuffle.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33705 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:09:17 +00:00
Chris Lattner
55eb1c47de eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33693 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:40:53 +00:00
Chris Lattner
a4f4659865 Move symbolic constant folding code to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:53:10 +00:00
Chris Lattner
79066fa6ac Adjust #includes to match movement of constant folding code from transformutils to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33680 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:46:24 +00:00
Chris Lattner
5520732b24 move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into 
libanalysis/ConstantFolding.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33679 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:45:45 +00:00
Chris Lattner
4973190b07 remove now-dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33678 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:29:47 +00:00
Chris Lattner
ff2dad3128 the inliner pass now passes targetdata down through the inliner api's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33677 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:28:39 +00:00
Chris Lattner
1dfdf8255e The inliner/cloner can now optionally take TargetData info, which can be 
used by constant folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:22:39 +00:00
Chris Lattner
0a19ffaf58 pass TD to constant folding apis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33674 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:16:15 +00:00
Chris Lattner
cd2492e6ff use smallvector instead of vector to make constant folding a bit more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:15:19 +00:00
Chris Lattner
6c1f56574c adjust to api change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33671 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:14:52 +00:00
Chris Lattner
9fa038dc21 Change constant folding APIs to take an optional TargetData, and change 
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.

In some cases, switch to using a SmallVector instead of a vector.
This allows us to get rid of some special case gross code that was there
to avoid the cost of constructing a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33670 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:13:49 +00:00
Chris Lattner
db43c63389 remove some bits that are not yet meant to land. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33666 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:50:32 +00:00
Chris Lattner
c5eff4488b Symbolically evaluate constant expressions like &A[123] - &A[4].f. 
This occurs in C++ code like:

#include <iostream>
#include <iterator>
int a[] = { 1, 2, 3, 4, 5 };
int main() {
  using namespace std;
  copy(a, a + sizeof(a)/sizeof(a[0]), ostream_iterator<int>(cout, "\n"));
  return 0;
}

Before we would decide the loop trip count is:
sdiv (i32 sub (i32 ptrtoint (i32* getelementptr ([5 x i32]* @a, i32 0, i32 5) to i32), i32 ptrtoint ([5 x i32]* @a to i32)), i32 4)

Now we decide it is "5".  Amazing.

This code will need to be refactored, but I'm doing that as a separate
commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:32:46 +00:00
Reid Spencer
5cbf985dcb For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:08:39 +00:00
Nick Lewycky
6a08f918b6 Simplify names of lattice values. SGTUNE becomes SGT, for example. 
Fix initializeConstant, now initializeInt. Fixes major performance
bottleneck.

X == Y || X->DominatedBy(Y) is redundant. Remove the X == Y part.

Fix crasher in makeEqual where getOrInsertNode would add a new constant,
producing an NE relationship between the two members we're trying to make
equal. This now allows us to mark more BBs as unreachable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33612 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-29 02:56:54 +00:00
Anton Korobeynikov
b10308e440 Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-28 13:31:35 +00:00
Chris Lattner
424db0209c Fix test/Transforms/InstCombine/2007-01-27-AndICmp.ll, a miscompilation of 
Mozilla that Anton tracked down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33591 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-27 23:08:34 +00:00
Jim Laskey
44c3b9fdd4 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33550 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-26 21:22:28 +00:00
Reid Spencer
26f238589f For PR761: 
The Module::setEndianness and Module::setPointerSize methods have been
removed. Instead you can get/set the DataLayout. Adjust thise accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33530 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-26 08:11:39 +00:00
Devang Patel
c71ca3cdd2 Inherit CallGraphSCCPass directly from Pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33514 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-26 00:47:38 +00:00
Devang Patel
4d447f5121 Inherit BasicBlockPass directly from Pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-25 23:23:25 +00:00
Chris Lattner
338305b0b6 Make llvm-extract preserve the callingconv of prototypes in the extracted 
code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-25 17:38:26 +00:00
Reid Spencer
4223016d02 Cleanup checks in the load and store of casted pointer transforms. Two 
changes: (1) don't special case for i1 any more, (2) use the new
TargetData::getTypeSizeInBits method to ensure source and dest are the
same bit width.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33427 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-22 05:51:25 +00:00
Reid Spencer
24d6da5fed For PR970: 
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33415 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-21 00:29:26 +00:00
Reid Spencer
67f827ce5b Revise the store V, (cast P) -> store (cast V) -> P transform. 
We only want to do this if the src and destination types have the same
bit width. This patch uses TargetData::getTypeSizeInBits() instead of
making a special case for integer types and avoiding the transform if
they don't match.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33414 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-20 23:35:48 +00:00
Chris Lattner
58092e35a3 Teach TargetData to handle 'preferred' alignment for each target, and use 
these alignment amounts to align scalars when we can.  Patch by Scott Michel!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33409 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-20 22:35:55 +00:00
Owen Anderson
f4d5de4080 Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33397 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-20 10:07:23 +00:00
Reid Spencer
55af2b59bb For this transform: store V, (cast P) -> store (cast V), P 
don't allow the transform if V and the pointer's element type are different
width integer types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33371 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-19 21:20:31 +00:00
Reid Spencer
c10305743c For PR1043: 
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33370 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-19 21:13:56 +00:00
Chris Lattner
696ee0ab15 Fix InstCombine/2007-01-18-VectorInfLoop.ll, a case where instcombine 
infinitely loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33343 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-18 22:16:33 +00:00
Reid Spencer
7515396096 Clean up some code around the store V, (cast P) -> store (cast V), P 
transform. Change some variable names so it is clear what is source and
what is dest of the cast. Also, add an assert to ensure that the integer
to integer case is asserting if the bitwidths are different. This prevents
illegal casts from being formed and catches bitwidth bugs sooner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33337 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-18 18:54:33 +00:00
Reid Spencer
7af9a13f3a For PR1094: 
Adjust the use of SetVector for changes in SetVector's interface.
Patch by Gordon Henriksen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-17 02:23:37 +00:00
Chris Lattner
0d880c38ce Fix a regression in my isIntegral patch that broke 471.omnetpp. This is 
because TargetData::getTypeSize() returns the same for i1 and i8.  This fix
is not right for the full generality of bitwise types, but it fixes the
regression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33237 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 17:55:20 +00:00
Nick Lewycky
dd402588b5 Don't print address of ETNode. Print the DFSNumIn which uniquely identifies 
the basic block and is stable across runs in gdb or valgrind.

Make Node::update handle edges which dominate and are tighter than
existing edges.

Replace makeEqual's "squeeze theorem" code. Fixes miscompilation.

Gate the calls to defToOps and opsToDef. Before this, we were getting IG
edges about values which weren't even defined in the dominated area. This
reduces the size of the IG by about half.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33236 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 14:30:07 +00:00
Chris Lattner
ff9f13a4b2 Implement InstCombine/phi.ll:test7, deletion of trivial value loops for 
induction variables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 07:30:06 +00:00
Chris Lattner
76b7a06a75 simplify some code now that types are signless 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33232 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 07:02:54 +00:00
Chris Lattner
836692dd8a delete stores to allocas with one use. This is a trivial form of DSE which 
often kicks in for ?: expressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33231 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 06:51:56 +00:00
Chris Lattner
42a7551725 rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger. 
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33225 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 02:27:26 +00:00
Chris Lattner
4d5f508318 Eliminate calls to isInteger, generalizing code and tightening checks as needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33218 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 01:55:30 +00:00
Chris Lattner
caed0e3d71 Fix Analysis/Dominators/2006-10-02-BreakCritEdges.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-15 00:15:09 +00:00
Chris Lattner
58e9746ef3 instcombine has always been miscompiling fcmp x, x, disregarding possible 
NANs.  This fixes PR1111 and Transforms/InstCombine/2007-01-14-FcmpSelf.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-14 19:42:17 +00:00
Chris Lattner
9fa58b5f66 Fix PR1110 and Analysis/Dominators/2007-01-14-BreakCritEdges.ll by being 
more careful about unreachable code when updating dominator info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33204 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-14 18:33:35 +00:00
Chris Lattner
a5c5e7715c Fix Transforms/InstCombine/2007-01-13-ExtCompareMiscompile.ll, which is part 
of PR1107


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-13 23:11:38 +00:00
Reid Spencer
ac3e76ca8f Fix indentation to prior level for easier diffs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33184 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-13 05:10:53 +00:00
Nick Lewycky
0be7f47735 "Default context" blocks can occur after a non-default one. This meant 
that properties were being applied where they didn't belong. Fixes crash
in new MiBench testcase.

Also mark debugging code as such in #ifdef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-13 02:05:28 +00:00
Chris Lattner
54a525d7ae Fix a minor bug handling constant exprs, introduced by a recent patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33175 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-13 00:42:58 +00:00
Chris Lattner
c08b56f6a0 fix a bug in a recent patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33164 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-13 00:02:49 +00:00
Chris Lattner
ef60b2c4ed simplify some code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33150 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 22:51:20 +00:00
Chris Lattner
720922fe27 Remove over-general comparisons 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33147 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 22:49:11 +00:00
Chris Lattner
e9d4fa7a92 eliminate redundant check 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33132 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 18:35:11 +00:00
Chris Lattner
97d1fad3d2 Branch conditions must be i1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33129 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 18:30:11 +00:00
Reid Spencer
a54b7cbd45 For PR1064: 
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33113 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 07:05:14 +00:00
Reid Spencer
579dca12c2 Implement review feedback for the ConstantBool->ConstantInt merge. Chris 
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33110 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 04:24:46 +00:00
Nick Lewycky
28c5b1544a If we know that it's a constant being casted, propagate through the cast 
instruction. Doesn't work the other way though (can't recover bits that
have been truncated).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33104 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 01:23:53 +00:00
Nick Lewycky
c2a7d097f9 Clean up logic after ConstantBool removal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33096 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-12 00:02:12 +00:00
Reid Spencer
4fe16d607d Rename BoolTy as Int1Ty. Patch by Sheng Zhou. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33076 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 18:21:29 +00:00
Zhou Sheng
34dceb4757 Remove unnecessary boolean type check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33075 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 14:38:17 +00:00
Zhou Sheng
6b6b6ef167 For PR1043: 
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 12:24:14 +00:00
Zhou Sheng
057809ac1c Fixed indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33072 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 10:33:26 +00:00
Nick Lewycky
bc00fec835 Quiet compiler warning. The only reason the function is marked virtual 
is so that it can be called from inside a debugger.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33067 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 02:38:21 +00:00
Nick Lewycky
419c6f5ac8 New predicate simplifier! 
Please do not enable, there is still some known miscompile problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33066 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-11 02:32:38 +00:00
Chris Lattner
39ff1e2afc Fix a bug in heap-sra that caused compilation failure of office-ispell. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33043 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-09 23:29:37 +00:00
Jeff Cohen
dfc12993b9 Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33021 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-08 20:17:17 +00:00
Reid Spencer
abaa8ca433 Comparison of primitive type sizes should now be done in bits, not bytes. 
This patch converts getPrimitiveSize to getPrimitiveSizeInBits where it is
appropriate to do so (comparison of integer primitive types).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33012 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-08 16:32:00 +00:00
Reid Spencer
ac8cdf79e7 For PR1097: 
Enable complex addressing modes on 64-bit platforms involving two induction
variables by keeping a size and scale in 64-bits not 32.
Patch by Dan Gohman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33011 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-08 16:17:51 +00:00
Reid Spencer
3c628627ea Types should be const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33001 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 21:45:41 +00:00
Chris Lattner
ba8b327f67 this pass is unused 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32998 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 18:12:43 +00:00
Chris Lattner
b76efb71d4 Change the interface to Module::getOrInsertFunction to be easier to use,to resolve PR1088, and to help PR411. 
This simplifies many clients also


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32989 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 08:12:01 +00:00
Chris Lattner
a121fddf3c prepare for adjustment to getOrInsertFunction method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32985 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 07:54:34 +00:00
Chris Lattner
febe5f1b3c relax some types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32982 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 07:22:20 +00:00
Chris Lattner
35057c2625 relax types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32981 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 06:59:47 +00:00
Chris Lattner
92141968cb relax some types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32980 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 06:58:05 +00:00
Chris Lattner
ee4f13a904 add -debug output for -indvars. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32971 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-07 01:14:12 +00:00
Chris Lattner
46013f4044 Fix regressions in InstCombine/call-cast-target.ll and InstCombine/2003-11-13-ConstExprCastCall.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32959 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 19:53:32 +00:00
Reid Spencer
78d033e086 For PR411: 
Take an incremental step towards type plane elimination. This change
separates types from values in the symbol tables by finally making use
of the TypeSymbolTable class. This yields more natural interfaces for
dealing with types and unclutters the SymbolTable class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32956 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 07:24:44 +00:00
Chris Lattner
80c6c3bbff this final call to canLosslesslyBitCastTo is dead, because ValueRequiresCast 
is only called on integers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32949 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 02:11:56 +00:00
Chris Lattner
ec47992f5c simplify some more code now that there are not multiple different integer 
types of the same size


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32948 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 02:09:32 +00:00
Chris Lattner
57d8637468 eliminate some uses of canLosslesslyBitCastTo, this actually makes the code stronger, by nuking 
relational pointer comparisons with casts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32947 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 01:45:59 +00:00
Chris Lattner
d5dc0fb011 no need to worry about int vs uint any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32946 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-06 01:37:35 +00:00
Chris Lattner
e4929dd0cc Implement InstCombine/vec_shuffle.ll:%test7, simplifying shuffles with 
undef operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32899 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-05 07:36:08 +00:00
Chris Lattner
4f0e33d145 fold things like a^b != c^a -> b != c. This implements InstCombine/xor.ll:test27 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32893 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-05 03:04:57 +00:00
Chris Lattner
e617c9ed5d Compile X + ~X to -1. This implements Instcombine/add.ll:test34 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32890 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-05 02:17:46 +00:00
Reid Spencer
8c5a53a603 Death to useless bitcast instructions! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32866 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-04 05:23:51 +00:00
Chris Lattner
7ce2f8b265 Enable a couple xforms for packed vectors (undef | v) -> -1 for packed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32858 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-04 02:12:40 +00:00
Jim Laskey
52ab904ee5 Vectors are not supported by ConstantInt::getAllOnesValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32827 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-03 00:11:03 +00:00
Reid Spencer
ee5d25e5cc Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-31 22:26:06 +00:00
Reid Spencer
c5b206b6be For PR950: 
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32785 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-31 05:48:39 +00:00
Reid Spencer
0f9d82c5c4 For PR1066: 
Fix this by ensuring that a bitcast is inserted to do sign switching. This
is only temporarily needed as the merging of signed and unsigned is next
on the SignlessTypes plate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32757 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-24 00:40:59 +00:00
Reid Spencer
b3307b232a Shut up some compilers that can't accurately analyze variable usage 
correctly and emit "may be used uninitialized" warnings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32756 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-23 19:17:57 +00:00
Reid Spencer
1b0d847874 For PR1065: 
Don't allow CmpInst instances to be processed in FoldSelectOpOp because
you can't easily swap their operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32753 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-23 18:58:04 +00:00
Reid Spencer
e4d87aa2de For PR950: 
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-23 06:05:41 +00:00
Chris Lattner
add2bd7f59 add a simple fast-path for dead allocas 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32750 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-22 23:14:42 +00:00
Reid Spencer
06e3f4ee7e Remove isSigned calls via foreknowledge of main's argument types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32730 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-21 07:49:49 +00:00
Reid Spencer
a2913eea9d Get rid of a useless if statement whose then and else blocks were identical. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32729 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-21 07:15:54 +00:00
Chris Lattner
3bad2533bb handle undef values much more carefully: generalize the resolveundefbranches 
code to handle instructions as well, so that we properly fold things like
X & undef -> 0.
This fixes Transforms/SCCP/2006-12-19-UndefBug.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32715 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-20 06:21:33 +00:00
Chris Lattner
1c560adfd1 switch statistics over to not use static ctors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32709 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 23:16:47 +00:00
Chris Lattner
cbfdd1f840 eliminate static ctor from example. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32696 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 22:24:09 +00:00
Chris Lattner
61bc8f8ca4 remove dead statistic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32695 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 22:23:21 +00:00
Chris Lattner
d216e8ba60 switch more statistics over to STATISTIC, eliminating static ctors. Also, 
delete some dead ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32694 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 22:17:40 +00:00
Chris Lattner
86453c52ba Eliminate static ctors due to Statistic objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32693 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 22:09:18 +00:00
Chris Lattner
438e08e357 Convert more Statistic's over to STATISTIC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32692 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 21:49:03 +00:00
Chris Lattner
0e5f499638 Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic 
converted, we lose a static initializer.  This also allows GCC to emit warnings
about unused statistics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32690 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-19 21:40:18 +00:00
Reid Spencer
8a903db499 Convert the last uses of CastInst::createInferredCast to a normal cast 
creation. These changes are still temporary but at least this pushes
knowledge of signedness out closer to where it can be determined properly
and allows signedness to be removed from VMCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32654 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-18 08:47:13 +00:00
Reid Spencer
dc26a9b840 Convert the last use of two-argument ConstantExpr::getCast into another 
form so we can remove that method from ConstantExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32652 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-18 08:16:27 +00:00
Bill Wendling
5c7e326585 Added an automatic cast to "std::ostream*" etc. from OStream. We then can 
rework the hacks that had us passing OStream in. We pass in std::ostream*
instead, check for null, and then dispatch to the correct print() method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32636 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-17 05:15:13 +00:00
Chris Lattner
95ca3a453a when inserting a dummy argument to work-around the CBE not supporting 
zero arg vararg functions, pass undef instead of 'int 0', which is cheaper.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32634 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-16 21:21:53 +00:00
Chris Lattner
d22dbdf606 re-enable a temporarily-reverted patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32595 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-15 07:32:38 +00:00
Reid Spencer
c55b243bcd Fix a bug in EvaluateInDifferentType. The type of operand should not be 
used to determine whether a ZExt or SExt cast is performed. Instead, pass
an "isSigned" bool to the function and determine its value from the opcode
of the cast involved.
Also, clean up some cruft from previous patches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32548 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 18:21:21 +00:00
Reid Spencer
7eb7638276 Implement review feedback. Most of this has to do with removing unnecessary 
cast instructions. A few are bug fixes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32544 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 17:19:09 +00:00
Reid Spencer
21a55c9f08 For mul transforms, when checking for a cast from bool as either operand, 
make sure to also check that it is a zext from bool, not any other cast
operation type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32539 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 08:33:33 +00:00
Reid Spencer
5ae9cebef5 Fix and/or/xor (cast A), (cast B) --> cast (and/or/xor A, B) 
The cast patch introduced the possibility that the wrong cast opcode
could be used and that this transform could trigger on different kinds
of cast operations. This patch rectifies that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32538 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 08:27:15 +00:00
Reid Spencer
3ba68b9eef Change the interface to SCEVExpander::InsertCastOfTo to take a cast opcode 
so the decision of which opcode to use is pushed upward to the caller.
Adjust the callers to pass the expected opcode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32535 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 08:06:42 +00:00
Reid Spencer
dccd9fe161 Fix some casts. isdigit(c) returns 0 or 1, not 0 or -1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32534 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 08:04:32 +00:00
Chris Lattner
21c362d324 revert my recent int<->fp and vector union promotion changes, they expose 
obscure bugs affecting the X86 code generator.  I will reenable this
when fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32524 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 02:26:45 +00:00
Reid Spencer
7b06bd532d Replace CastInst::createInferredCast calls with more accurate cast 
creation calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32521 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-13 00:50:17 +00:00
Reid Spencer
d977d8651a Replace inferred getCast(V,Ty) calls with more strict variants. 
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32514 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 23:36:14 +00:00
Chris Lattner
bb4e7b2fa4 this can be trunc or bitcast, per line 3092. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32487 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 19:11:20 +00:00
Chris Lattner
078b631ff3 Fix regression on 400.perlbench last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32486 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 18:41:03 +00:00
Reid Spencer
17212df0ee Fix numerous inferred casts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32479 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 09:18:51 +00:00
Reid Spencer
daa8e3c263 Fix the casting for the computation of the Malloc size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32477 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 09:17:08 +00:00
Reid Spencer
4da49122f3 Change inferred getCast into specific getCast. Passes all tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32469 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 05:05:00 +00:00
Chris Lattner
a30fc5ed04 Patch for PR1045 and Transforms/ScalarRepl/2006-12-11-SROA-Crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32468 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-12 04:24:41 +00:00
Chris Lattner
509f85140c trunc to integer, not to FP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32426 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-11 01:17:00 +00:00
Chris Lattner
1dbea1598c implement promotion of unions containing two packed types of the same width. 
This implements Transforms/ScalarRepl/union-packed.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32422 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-11 00:35:08 +00:00
Chris Lattner
ae6a305094 * Eliminate calls to CastInst::createInferredCast. 
* Add support for promoting unions with fp values in them.  This produces
   our new int<->fp bitcast instructions, implementing
   Transforms/ScalarRepl/union-fp-int.ll

As an example, this allows us to compile this:

union intfloat { int i; float f; };
float invsqrt(const float arg_x) {
    union intfloat x = { .f = arg_x };
    const float xhalf = arg_x * 0.5f;
    x.i = 0x5f3759df - (x.i >> 1);
    return x.f * (1.5f - xhalf * x.f * x.f);
}

into:

_invsqrt:
        movss 4(%esp), %xmm0
        movd %xmm0, %eax
        sarl %eax
        movl $1597463007, %ecx
        subl %eax, %ecx
        movd %ecx, %xmm1
        mulss LCPI1_0, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        mulss %xmm1, %xmm0
        subss %xmm0, %xmm2
        movl 8(%esp), %eax
        mulss %xmm2, %xmm1
        movss %xmm1, (%eax)
        ret

instead of:

_invsqrt:
        subl $4, %esp
        movss 8(%esp), %xmm0
        movss %xmm0, (%esp)
        movl (%esp), %eax
        movl $1597463007, %ecx
        sarl %eax
        subl %eax, %ecx
        movl %ecx, (%esp)
        mulss LCPI1_0, %xmm0
        movss (%esp), %xmm1
        mulss %xmm1, %xmm0
        mulss %xmm1, %xmm0
        movss LCPI1_1, %xmm2
        subss %xmm0, %xmm2
        mulss %xmm2, %xmm1
        movl 12(%esp), %eax
        movss %xmm1, (%eax)
        addl $4, %esp
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32418 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-10 23:56:50 +00:00
Reid Spencer
f7761e5c39 Incorporate any changes in the successor blocks into the result of 
MarkAliveBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32375 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-08 21:52:01 +00:00
Bill Wendling
f5da13367f What should be the last unnecessary <iostream>s in the library. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32333 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 22:21:48 +00:00
Bill Wendling
832171cb97 Removing even more <iostream> includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32320 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 20:04:42 +00:00
Bill Wendling
e81561909d Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are 
now cerr, cout, and NullStream resp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32298 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-07 01:30:32 +00:00
Reid Spencer
62700f250f Update ConstantIntegral Max/Min tests for new interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32288 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 20:39:57 +00:00
Chris Lattner
02fc40ebd3 add missing #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32280 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 18:14:47 +00:00
Chris Lattner
ac0b6ae358 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32279 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 17:46:33 +00:00
Chris Lattner
3749c9cae4 Remove the 'printname' argument to WriteAsOperand. It is always true, and 
passing false would make the asmprinter fail anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32264 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 06:16:21 +00:00
Chris Lattner
698b51e870 counter should be unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32252 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-06 01:50:04 +00:00
Chris Lattner
e13ab2a9a1 add an instcombine xform. This speeds up 462.libquantum from 9.78s to 
7.48s.  This regression is due to unforseen consequences of the cast patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32209 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-05 01:26:29 +00:00
Devang Patel
67a821d9a3 SCCP does not handle Packed Type properly. Disable Packed Type handling 
for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32208 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-04 23:54:59 +00:00
Reid Spencer
3b3844288b Update call to CastInst::getCastOpcode for its new signature. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32166 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-04 02:48:01 +00:00
Jeff Cohen
97af751deb Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-02 02:22:01 +00:00
Chris Lattner
9919e3df17 disable transformations that are invalid for fp vectors. This fixes 
Transforms/InstCombine/2006-12-01-BadFPVectorXform.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32112 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-02 00:13:08 +00:00
Reid Spencer
44c030a7ee Remove 4 FIXMEs to hack around cast-to-bool problems which no longer exist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32051 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-30 23:13:36 +00:00
Chris Lattner
d0a6a7a030 make it clear that this is always a zext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32044 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-30 17:35:08 +00:00
Chris Lattner
6e8fbad675 One more bugfix, 3 cases of making casts explicit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32043 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-30 17:32:29 +00:00
Chris Lattner
9a989f0f97 Fix a bug in globalopt due to the recent cast patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32042 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-30 17:26:08 +00:00
Chris Lattner
46b96055cf implement cast.ll:test35. With this, we recognize: 
unsigned short swp(unsigned short a) {
       return ((a & 0xff00) >> 8 | (a & 0x00ff) << 8);
}

as an idiom for bswap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32011 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-29 07:18:39 +00:00
Chris Lattner
6aa5eb19d5 Teach instcombine to turn trunc(srl x, c) -> srl (trunc(x), c) when safe. 
This implements InstCombine/cast.ll:test34.  It fires hundreds of times on
176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32009 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-29 07:04:07 +00:00
Chris Lattner
458cf462ef Implement Regression/Transforms/InstCombine/bswap-fold.ll, 
folding   seteq (bswap(x)), c -> seteq(x,bswap(c))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32006 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-29 05:02:16 +00:00
Reid Spencer
de33124aa3 Join a split line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31996 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-29 01:11:01 +00:00
Reid Spencer
d4d9ab80b7 Undo the last patch until 253.perlbmk passes with these changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31977 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-28 20:23:51 +00:00
Reid Spencer
5d4dbd1f60 Remove 4 FIXME's from the CAST patch now that the back end is correctly 
producing code for "trunc to bool". This passes all tests on Linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31963 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-28 07:23:01 +00:00
Chris Lattner
f2f1643037 Fix PR1014 and InstCombine/2006-11-27-XorBug.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31941 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-27 19:55:07 +00:00
Reid Spencer
3da59db637 For PR950: 
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-27 01:05:10 +00:00
Bill Wendling
0d45a096cf Remove #include <iostream> and use llvm_* streams instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31925 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-26 10:17:54 +00:00
Bill Wendling
0a81aac4b4 Replace #include <iostream> with llvm_* streams. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31924 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-26 10:02:32 +00:00
Bill Wendling
b742703137 Removed #include <iostream> and replaced with llvm_* streams. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31923 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-26 09:46:52 +00:00
Bill Wendling
62c804a3ea Removed #include <iostream> and used the llvm_cerr/DOUT streams instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31922 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-26 09:17:06 +00:00
Nick Lewycky
565706b93e Update to new predicate simplifier VRP design. Fixes PR966 and PR967. 
Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31895 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-22 23:49:16 +00:00
Chris Lattner
13c654a42a This xform is handled by FoldOpIntoPhi in visitCastInst in a more elegant way. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31889 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-21 17:05:13 +00:00
Chris Lattner
822a879983 Do not convert massive blocks on phi nodes into select statements. Instead 
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31853 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-18 19:19:36 +00:00
Chris Lattner
020f714a93 If an indvar with a variable stride is used by the exit condition, go ahead 
and handle it like constant stride vars.  This fixes some bad codegen in
variable stride cases.  For example, it compiles this:

void foo(int k, int i) {
  for (k=i+i; k <= 8192; k+=i)
    flags2[k] = 0;
}

to:

LBB1_1: #bb.preheader
        movl %eax, %ecx
        addl %ecx, %ecx
        movl L_flags2$non_lazy_ptr, %edx
LBB1_2: #bb
        movb $0, (%edx,%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB1_2      #bb
LBB1_5: #return
        ret

or (if the array is local and we are in dynamic-nonpic or static mode):

LBB3_2: #bb
        movb $0, _flags2(%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB3_2      #bb

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        slwi r3, r4, 1
LBB1_2: ;bb
        li r5, 0
        add r6, r4, r3
        stbx r5, r2, r3
        cmpwi cr0, r6, 8192
        bgt cr0, LBB1_5 ;return

instead of:

        leal (%eax,%eax,2), %ecx
        movl %eax, %edx
        addl %edx, %edx
        addl L_flags2$non_lazy_ptr, %edx
        xorl %esi, %esi
LBB1_2: #bb
        movb $0, (%edx,%esi)
        movl %eax, %edi
        addl %esi, %edi
        addl %ecx, %esi
        cmpl $8192, %esi
        jg LBB1_5       #return

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        mulli r3, r4, 3
        slwi r5, r4, 1
        li r6, 0
        add r2, r2, r5
LBB1_2: ;bb
        li r5, 0
        add r7, r3, r6
        stbx r5, r2, r6
        add r6, r4, r6
        cmpwi cr0, r7, 8192
        ble cr0, LBB1_2 ;bb

This speeds up Benchmarks/Shootout/sieve from 8.533s to 6.464s and
implements LoopStrengthReduce/var_stride_used_by_compare.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31809 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-17 06:17:33 +00:00
Chris Lattner
d23b5baf8a Fix a gcc 4.2 warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-15 04:53:24 +00:00
Chris Lattner
e511b74f4a implement InstCombine/shift-simplify.ll by transforming: 
(X >> Z) op (Y >> Z)  -> (X op Y) >> Z

for all shifts and all ops={and/or/xor}.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31729 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-14 07:46:50 +00:00
Chris Lattner
9c2328e5a9 implement InstCombine/and-compare.ll:test1. This compiles: 
typedef struct { unsigned prefix : 4; unsigned code : 4; unsigned unsigned_p : 4; } tree_common;
int foo(tree_common *a, tree_common *b) { return a->code == b->code; }

into:

_foo:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl (%eax), %eax
        xorl (%ecx), %eax
        # TRUNCATE movb %al, %al
        shrb $4, %al
        testb %al, %al
        sete %al
        movzbl %al, %eax
        ret

instead of:

_foo:
        movl 8(%esp), %eax
        movb (%eax), %al
        shrb $4, %al
        movl 4(%esp), %ecx
        movb (%ecx), %cl
        shrb $4, %cl
        cmpb %al, %cl
        sete %al
        movzbl %al, %eax
        ret

saving one cycle by eliminating a shift.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31727 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-14 06:06:06 +00:00
Chris Lattner
de2b6605ba Fix InstCombine/2006-11-10-ashr-miscompile.ll a miscompilation introduced 
by the shr -> [al]shr patch.  This was reduced from 176.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31653 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-10 23:38:52 +00:00
Chris Lattner
08ff1480ff second patch to fix PR992/993. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31610 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-09 23:36:08 +00:00
Chris Lattner
a9d709d51a Minimal patch to fix PR992/PR993 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31608 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-09 23:17:45 +00:00
Chris Lattner
b4a2f059ad Teach ShrinkDemandedConstant how to handle X+C. This implements: 
add.ll:test33, add.ll:test34, shift-sra.ll:test2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31586 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-09 05:12:27 +00:00
Chris Lattner
53738a4dbf reenable factoring of GEP expressions, being more precise about the 
case that it bad to do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31563 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 19:42:28 +00:00
Chris Lattner
f6fd94d3fa make this code more efficient by not creating a phi node we are just going to 
delete in the first place.  This also makes it simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31562 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 19:29:23 +00:00
Jim Laskey
d6c3422e31 Remove redundant <cmath>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31561 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 19:16:44 +00:00
Chris Lattner
f0cd7085c1 disable this factoring optzn for GEPs for now, this severely pessimizes some 
loops.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 18:49:31 +00:00
Reid Spencer
3822ff5c71 For PR950: 
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31542 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-08 06:47:33 +00:00
Chris Lattner
d92515034f scalarrepl should not split the two elements of the vsiidx array: 
int func(vFloat v0, vFloat v1) {
        int ii;
        vSInt32 vsiidx[2];
        vsiidx[0] = _mm_cvttps_epi32(v0);
        vsiidx[1] = _mm_cvttps_epi32(v1);
        ii = ((int *) vsiidx)[4];
        return ii;
}

This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31524 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-07 22:42:47 +00:00
Jeff Cohen
d41b30def3 Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31464 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-05 19:31:28 +00:00
Nick Lewycky
8b2989ae91 Remove commented line from earlier debugging. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31460 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-05 14:19:40 +00:00
Andrew Lenharth
8ed4c47d70 The wrong parameter was being tested to deturmine i32 vs i64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31431 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-03 22:45:50 +00:00
Chris Lattner
ffa0a9b7ea remove dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31398 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-03 01:34:58 +00:00
Reid Spencer
3ed469ccd7 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 20:25:50 +00:00
Reid Spencer
0a783f783c For PR950: 
Replace the REM instruction with UREM, SREM and FREM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-02 01:53:59 +00:00
Devang Patel
e0805a2d36 There can be more than one PHINode at the start of the block. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31362 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 23:04:45 +00:00
Devang Patel
2c0565f8e0 Handle PHINode with only one incoming value. 
This fixes http://llvm.org/bugs/show_bug.cgi?id=979


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31358 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 22:26:43 +00:00
Chris Lattner
25de4e5c21 Fix GlobalOpt/2006-11-01-ShrinkGlobalPhiCrash.ll and McGill/chomp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31352 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 18:03:33 +00:00
Chris Lattner
9c08050ac7 Factor gep instructions through phi nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31346 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 07:43:41 +00:00
Chris Lattner
76c7314650 Turn a phi of many loads into a phi of the address and a single load of the 
result.  This can significantly shrink code and exposes identities more
aggressively.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31344 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 07:13:54 +00:00
Chris Lattner
a90a24c623 Fix a bug in the previous patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31342 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 04:55:47 +00:00
Chris Lattner
7da52b295b Fold things like "phi [add (a,b), add(c,d)]" into two phi's and one add. 
This triggers thousands of times on multisource.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31341 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-11-01 04:51:18 +00:00
Chris Lattner
cbea67f55b generalize the fix for PR977 to also fix 
Transforms/LCSSA/2006-10-31-UnreachableBlock-2.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31317 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 18:56:48 +00:00
Chris Lattner
1753faee81 Fix PR977 and Transforms/LCSSA/2006-10-31-UnreachableBlock.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31315 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-31 17:52:18 +00:00
Chris Lattner
120bc21576 Fix SimplifyCFG/2006-10-29-InvokeCrash.ll, a crash compiling QT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31284 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-29 21:21:20 +00:00
Chris Lattner
b57de3328d add option to isCriticalEdge 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31258 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:58:17 +00:00
Chris Lattner
0997fadc37 break edges more intelligently 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31257 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:45:33 +00:00
Chris Lattner
27e1f90d85 Expose a smarter way to break critical edges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31256 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:44:56 +00:00
Chris Lattner
f6de8ad1a2 SplitCriticalEdge checks to see if an edge is critical, don't check twice 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31255 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 06:38:14 +00:00
Chris Lattner
1b9c8e73b5 prepare for a change I'm about to make 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31248 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-28 00:59:20 +00:00
Reid Spencer
811b0cbd6e Simplify code a bit by changing instances of: 
InsertNewInstBefore(new CastInst(Val, ValTy, Val->GetName()), I)
into:
   InsertCastBefore(Val, ValTy, I)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31204 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 19:19:06 +00:00
Reid Spencer
1628cec4d7 For PR950: 
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 06:15:43 +00:00
Nick Lewycky
7043d00750 Fix 2006-10-25-AddSetCC. A relational operator (like setlt) can never 
produce an EQ property.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31193 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-26 02:35:18 +00:00
Nick Lewycky
e63bf95a32 Resurrect r1.25. 
Fix and comment the "or", "and" and "xor" transformations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31189 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-25 23:48:24 +00:00
Chris Lattner
b67e8f2263 hide symbols properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31184 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-25 21:14:31 +00:00
Chris Lattner
ae5d51c9c9 Fix Transforms/ScalarRepl/2006-10-23-PointerUnionCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31151 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-24 06:26:32 +00:00
Chris Lattner
ef2aa193d6 Revert back to r1.21, which was the last revision of predsimplify that 
passes llvm-gcc bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31146 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-24 00:36:21 +00:00
Chris Lattner
ddaaa37487 Handle fallout from the recent branch-on-undef changes. This fixes 
Prolangs-C/agrep and SCCP/2006-10-23-IPSCCP-Crash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31132 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 18:57:02 +00:00
Nick Lewycky
c17229d591 Remove the Backwards operation. Resolving now works at the time when a 
property is added by running through the list of uses of the value and
adding resolved properties to the property set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-23 01:56:02 +00:00
Nick Lewycky
7e189d095e Fix similar missing optimization opportunity in XOR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31123 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 22:22:58 +00:00
Nick Lewycky
92a8b71dc1 Whoops! Add missing NULL check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31121 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:38:24 +00:00
Nick Lewycky
5062250f36 Handle "if ((x|y) != 0)" for ints like we do for bools. Fixes missed 
optimization opportunity pointed out by Chris Lattner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31118 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 21:36:41 +00:00
Nick Lewycky
802fe27d3e AllocaInst can't return a null pointer. Fixes missed optimization 
opportunity pointed out by Andrew Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 19:53:27 +00:00
Chris Lattner
32b1e87f11 Add a workaround for PR962, disabling the more aggressive form of this 
transformation.  This speeds up a C++ app 2.25x.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31113 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 18:42:26 +00:00
Chris Lattner
d2d86703f0 3 Changes: 
1. Better document what is going on here.
2. Only hack on one branch per iteration, making the results less conservative.
3. Handle the problematic case by marking edges executable instead of by
   playing with value lattice states.  This is far less pessimistic, and fixes
   SCCP/ipsccp-gvar.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31106 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-22 05:59:17 +00:00
Chris Lattner
9dcbf0dedc llvm-extract should remove module-level asm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31086 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 21:35:41 +00:00
Chris Lattner
6734bffe24 Fix an ugly problem in SCCP. This fixes Benchmarks/Misc-C++/mandel-text.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31073 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 20:19:08 +00:00
Chris Lattner
87d8429506 Fix miscompilation of MallocBench/espresso which code review pointed out 
but apparently didn't make it into the final patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31070 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 18:20:21 +00:00
Reid Spencer
b83eb6447b For PR950: 
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 07:07:24 +00:00
Devang Patel
6e7dd9db6b While creating mask, use 1ULL instead of 1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31062 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 01:16:56 +00:00
Chris Lattner
b74b181630 Fix SimplifyCFG/2006-10-19-UncondDiv.ll by disabling a bad xform. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31061 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-20 00:42:07 +00:00
Devang Patel
002e499650 It is OK to remove extra cast if operation is EQ/NE even though source 
and destination sign may not match but other conditions are met.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31056 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 20:59:13 +00:00
Devang Patel
df308fa7ab Typo Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31055 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 19:21:36 +00:00
Devang Patel
85415ed270 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31054 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 19:05:38 +00:00
Devang Patel
6ce890b6ec Fix bug in PR454 resolution. Added new test case. 
This fixes llvmAsmParser.cpp miscompile by llvm on PowerPC Darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31053 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-19 18:54:08 +00:00
Reid Spencer
ac5209e5fe Undo Chris' last patch, it caused a regression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30991 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-16 23:08:08 +00:00
Chris Lattner
02c0e3659f fix a buggy check that accidentally disabled this xform 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30967 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-15 22:42:15 +00:00
Nick Lewycky
078ff41220 Replace custom dispatch code with two uses of InstVisitor. Improves 
compile-time performance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30896 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-12 02:02:44 +00:00
Chris Lattner
c836333c3b Implement SROA of unions with mixed pointers/integers in them. This implements 
PR892 and Transforms/ScalarRepl/union-pointer.ll:test2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30825 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-08 23:53:04 +00:00
Chris Lattner
5b121cc688 Implement Transforms/ScalarRepl/union-pointer.ll:test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30823 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-08 23:28:04 +00:00
Chris Lattner
867b99f845 add a new SimplifyDemandedVectorElts method, which works similarly to 
SimplifyDemandedBits.  The idea is that some operations can be simplified if
not all of the computed elements are needed.  Some targets (like x86) have a
large number of intrinsics that operate on a single element, but pass other
elts through unmodified.  If those other elements are not needed, the
intrinsics can be simplified to scalar operations, and insertelement ops can
be removed.

This turns (f.e.):

ushort %Convert_sse(float %f) {
        %tmp = insertelement <4 x float> undef, float %f, uint 0                ; <<4 x float>> [#uses=1]
        %tmp10 = insertelement <4 x float> %tmp, float 0.000000e+00, uint 1             ; <<4 x float>> [#uses=1]
        %tmp11 = insertelement <4 x float> %tmp10, float 0.000000e+00, uint 2           ; <<4 x float>> [#uses=1]
        %tmp12 = insertelement <4 x float> %tmp11, float 0.000000e+00, uint 3           ; <<4 x float>> [#uses=1]
        %tmp28 = tail call <4 x float> %llvm.x86.sse.sub.ss( <4 x float> %tmp12, <4 x float> < float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp37 = tail call <4 x float> %llvm.x86.sse.mul.ss( <4 x float> %tmp28, <4 x float> < float 5.000000e-01, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp37, <4 x float> < float 6.553500e+04, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> zeroinitializer )          ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

into:

ushort %Convert_sse(float %f) {
entry:
        %tmp28 = sub float %f, 1.000000e+00             ; <float> [#uses=1]
        %tmp37 = mul float %tmp28, 5.000000e-01         ; <float> [#uses=1]
        %tmp375 = insertelement <4 x float> undef, float %tmp37, uint 0         ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp375, <4 x float> < float 6.553500e+04, float undef, float undef, float undef > )           ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> < float 0.000000e+00, float undef, float undef, float undef > )            ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

which improves codegen from:

_Convert_sse:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret

to:

_Convert_sse:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        movss LCPI1_2, %xmm1
        minss %xmm1, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret


This is just a first step, it can be extended in many ways.  Testcase here:
Transforms/InstCombine/vec_demanded_elts.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30752 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 06:55:50 +00:00
Chris Lattner
3a15503c82 This case isn't implemented yet. It seems unlikely to be needed, but if it 
ever is, we want to get an assert instead of silent bad codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30716 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 04:58:58 +00:00
Nick Lewycky
f938099aa1 Simplify logic further. 
Ensure that we copy KnownProperties before calling visitBasicBlock, else
we may leak properties into blocks where they don't belong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30705 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 17:36:01 +00:00
Nick Lewycky
a73a654bb4 Simplify, now that predsimplify depends on break-crit-edges. 
Fix SwitchInst where dest-block is the same as one of the cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30700 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 15:19:11 +00:00
Nick Lewycky
5c8c5d9ace Move break-crit-edges before the predicate simplifier. Allows us to 
optimize in more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30699 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 14:52:23 +00:00
Evan Cheng
99435d32b3 Revert previous patch. Still breaking things. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30698 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:26:07 +00:00
Chris Lattner
86f7b2100c Fix PR932 and Analysis/Dominators/2006-10-02-BreakCritEdges.ll: 
The critical edge block dominates the dest block if the destblock dominates
all edges other than the one incoming from the critical edge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30696 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:02:02 +00:00
Chris Lattner
e831b9a48b Fix a bug from r1.391 of this file, where we checked the size instead of 
the alignment when promoting allocations.  This implements
InstCombine/cast.ll:test32


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30682 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-01 19:40:58 +00:00
Chris Lattner
596721f0d7 Fix debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30680 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 23:32:50 +00:00
Chris Lattner
8639503abe Implement SRA of heap allocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30679 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 23:32:09 +00:00
Chris Lattner
cff1673182 Add some ifdef'd out debug info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30676 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 19:40:30 +00:00
Chris Lattner
47811b76ca Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30665 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:35:22 +00:00
Owen Anderson
3295471846 Another attempt at making ArgPromotion smarter. This patch no longer breaks Burg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30657 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:02:22 +00:00
Chris Lattner
40d31ecb29 simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30656 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 22:58:25 +00:00