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Author SHA1 Message Date
Evan Cheng
d3babfe458 Support for ADD_PARTS, SUB_PARTS, SHL_PARTS, SHR_PARTS, and SRA_PARTS. 
llvm-svn: 25158
 2006-01-09 18:33:28 +00:00
Evan Cheng
a8064e0723 * Allow custom lowering of ADD_PARTS, SUB_PARTS, SHL_PARTS, SRA_PARTS, 
and SRL_PARTS.
* Fix a bug that caused *_PARTS to be custom lowered twice.

llvm-svn: 25157
 2006-01-09 18:31:59 +00:00
Evan Cheng
7a32c047d9 New getNode() variants. 
llvm-svn: 25156
 2006-01-09 18:29:18 +00:00
Evan Cheng
e720cfd690 New DAG node properties SNDPInFlag, SNDPOutFlag, and SNDPOptInFlag to replace 
hasInFlag, hasOutFlag.

llvm-svn: 25155
 2006-01-09 18:28:21 +00:00
Evan Cheng
7b8f8c317e * Remove instruction fields hasInFlag / hasOutFlag and added SNDPInFlag and 
SNDPOutFlag to DAG nodes. These properties do not belong to target specific
instructions.
* Added DAG node property SNDPOptInFlag. It's same as SNDPInFlag except it's
optional. Used by ret / call, etc.

llvm-svn: 25154
 2006-01-09 18:27:06 +00:00
Chris Lattner
05816ecb7f Teach loopsimplify to update et-forest. Patch contributed by Daniel Berlin! 
llvm-svn: 25153
 2006-01-09 08:03:08 +00:00
Chris Lattner
06a5b2acff Bugfix for etforest updating. Contributed by Daniel Berlin. 
llvm-svn: 25152
 2006-01-09 07:58:01 +00:00
Reid Spencer
1c717326d9 Saem Ghani's PassManager Patch #8: 
This fixes a "gccass" regression. The -debug-pass=Structure option now
prints all the appropriate output

llvm-svn: 25151
 2006-01-08 22:57:07 +00:00
Reid Spencer
fb5ba86d31 Add some documentation. 
llvm-svn: 25150
 2006-01-08 22:41:22 +00:00
Reid Spencer
ae8ad0d55a Fix line length of a comment. 
llvm-svn: 25149
 2006-01-08 22:40:10 +00:00
Jeff Cohen
a19fcf4b2c Visual Studio hates being left out. 
llvm-svn: 25148
 2006-01-08 18:29:44 +00:00
Chris Lattner
60499c68b3 Fix the build on platforms where <cassert> doesn't define NULL 
llvm-svn: 25147
 2006-01-08 09:10:46 +00:00
Chris Lattner
4266c0b9cb Fix a problem exposed by the et-forest work. Load-vn needs these passes live 
whenever it is live, not just when load-vn is computed initially

llvm-svn: 25146
 2006-01-08 09:10:04 +00:00
Chris Lattner
6dc27e7cef Add an entry 
llvm-svn: 25145
 2006-01-08 08:25:38 +00:00
Chris Lattner
84a9d11b28 Initial implementation of the ET-Forest data structure for dominators and 
post-dominators.  This code was written/adapted by Daniel Berlin!

llvm-svn: 25144
 2006-01-08 08:22:18 +00:00
Chris Lattner
31d0e66ff2 Fix out of date comments, patch by Marco Matthies. 
llvm-svn: 25143
 2006-01-08 02:32:52 +00:00
Chris Lattner
8d84170fb5 Patch #7 from Saem: 
"added the asserts and casts, fixed the comments and started the break
down of the larger methods.  A few more patches and the breakdown
should be complete."

llvm-svn: 25142
 2006-01-07 23:16:58 +00:00
Chris Lattner
00d77e22d4 Fix the PPC JIT failures last night, which were due to mishandling of linkonce globals 
llvm-svn: 25141
 2006-01-07 06:22:16 +00:00
Chris Lattner
446a1e7a68 Wrap long lines. 
llvm-svn: 25140
 2006-01-07 06:20:51 +00:00
Chris Lattner
05a3f338cd wrap long line 
llvm-svn: 25139
 2006-01-07 06:12:07 +00:00
Chris Lattner
9d4d1b1220 Modify this test to not depend on the host math.h implementation 
llvm-svn: 25138
 2006-01-07 01:37:25 +00:00
Chris Lattner
9453593f40 fix some 176.gcc miscompilation from my previous patch. 
llvm-svn: 25137
 2006-01-07 01:32:28 +00:00
Evan Cheng
6a9c735e21 * Added integer div / rem. 
* Fixed a load folding bug.

llvm-svn: 25136
 2006-01-06 23:19:29 +00:00
Robert Bocchino
d424e0904c Fixed Makefile so it does, indeed, build a dynamic library. 
llvm-svn: 25135
 2006-01-06 22:51:19 +00:00
Robert Bocchino
e399fb1bbd Fixed a typo; "= 1" was missing. 
llvm-svn: 25134
 2006-01-06 22:49:23 +00:00
Evan Cheng
353958d60c Pattern complexity calculation fix. 
llvm-svn: 25133
 2006-01-06 22:19:44 +00:00
Evan Cheng
060b19c708 ISEL code for MULHU, MULHS, and UNDEF. 
llvm-svn: 25132
 2006-01-06 20:36:21 +00:00
Andrew Lenharth
193ef655ed make 0 codegen much better 
llvm-svn: 25131
 2006-01-06 19:41:51 +00:00
Chris Lattner
6c99d09404 silence some bogus gcc warnings on fenris 
llvm-svn: 25130
 2006-01-06 17:59:59 +00:00
Chris Lattner
88239024ca silence a bogus gcc warning 
llvm-svn: 25129
 2006-01-06 17:56:38 +00:00
Chris Lattner
6c01df15ac Enhance the shift-shift folding code to allow a no-op cast to occur in between 
the shifts.

This allows us to fold this (which is the 'integer add a constant' sequence
from cozmic's scheme compmiler):

int %x(uint %anf-temporary776) {
        %anf-temporary777 = shr uint %anf-temporary776, ubyte 1
        %anf-temporary800 = cast uint %anf-temporary777 to int
        %anf-temporary804 = shl int %anf-temporary800, ubyte 1
        %anf-temporary805 = add int %anf-temporary804, -2
        %anf-temporary806 = or int %anf-temporary805, 1
        ret int %anf-temporary806
}

into this:

int %x(uint %anf-temporary776) {
        %anf-temporary776 = cast uint %anf-temporary776 to int
        %anf-temporary776.mask1 = add int %anf-temporary776, -2
        %anf-temporary805 = or int %anf-temporary776.mask1, 1
        ret int %anf-temporary805
}

note that instcombine already knew how to eliminate the AND that the two
shifts fold into.  This is tested by InstCombine/shift.ll:test26

-Chris

llvm-svn: 25128
 2006-01-06 07:52:12 +00:00
Chris Lattner
e585f4fa9d A case that instcombine is not catching. 
llvm-svn: 25127
 2006-01-06 07:48:28 +00:00
Chris Lattner
410db54bbf Simplify the code a bit more 
llvm-svn: 25126
 2006-01-06 07:22:22 +00:00
Chris Lattner
83fc19a4a9 Extract a bunch of code out of visitShiftInst into FoldShiftByConstant. No 
functionality changes.

llvm-svn: 25125
 2006-01-06 07:12:35 +00:00
Chris Lattner
ae1bace70a Unbreak the build :( 
llvm-svn: 25124
 2006-01-06 05:47:48 +00:00
Evan Cheng
66355df170 Addd (shl x, 1) ==> (shl x, x) peepholes. 
llvm-svn: 25123
 2006-01-06 02:31:59 +00:00
Evan Cheng
1d376c6eb2 Tweak pattern complexity calc. 
llvm-svn: 25122
 2006-01-06 02:30:23 +00:00
Evan Cheng
105a0cc17e Revert the previous check-in. Leave shl x, 1 along for target to deal with. 
llvm-svn: 25121
 2006-01-06 01:56:02 +00:00
Evan Cheng
efe621adce fold (shl x, 1) -> (add x, x) 
llvm-svn: 25120
 2006-01-06 01:06:31 +00:00
Chris Lattner
d583872b9e linkonce symbols have an extra indirection, just like weak ones do. This fixes 
Prolangs-C++/family and Prolangs-C++/primes.

llvm-svn: 25119
 2006-01-06 01:04:03 +00:00
Evan Cheng
1e0d7b98f3 * Fast call support. 
* FP cmp, setcc, etc.

llvm-svn: 25117
 2006-01-06 00:43:03 +00:00
Evan Cheng
133170cb5c Support for custom lowering of ISD::RET. 
llvm-svn: 25116
 2006-01-06 00:41:43 +00:00
Evan Cheng
c6ad7a02a8 Bug fix wrt chain operand. 
llvm-svn: 25115
 2006-01-06 00:41:12 +00:00
Chris Lattner
5488b43338 Fix a compile crash building MultiSource/Applications/d with the new front-end. 
The PPC backend was generating random shift counts in this case, due to an
uninitialized variable.

llvm-svn: 25114
 2006-01-05 18:32:49 +00:00
Robert Bocchino
61bbc59306 Added the spec for the new "extractelement" instruction. 
llvm-svn: 25113
 2006-01-05 17:37:02 +00:00
Chris Lattner
ee327e57d2 Implement a few symbolic constant folding things. X ? Y : Y is Y. 
Fold:
seteq ({ short }* cast (int 1 to { short }*), { short }* null)
setlt ({ short }* cast (int 1 to { short }*), { short }* cast (int 2 to { short }*))

to false/true.  These last two commonly occur in the output of compilers that
tag integers, like cozmic's scheme compiler.

Tested by Regression/Assembler/ConstantExprFold.llx

llvm-svn: 25112
 2006-01-05 07:49:30 +00:00
Chris Lattner
b11a652b2a new tests, derived from cosmics scheme output 
llvm-svn: 25111
 2006-01-05 07:46:46 +00:00
Chris Lattner
253796d43f fix some formatting problems 
llvm-svn: 25110
 2006-01-05 07:19:51 +00:00
Chris Lattner
0bbcba6cff unbreak the build, these are now in TargetSelectionDAG.td 
llvm-svn: 25109
 2006-01-05 04:48:15 +00:00
Evan Cheng
6c86cf3a5f Added ConstantFP patterns. 
llvm-svn: 25108
 2006-01-05 02:08:37 +00:00