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Author SHA1 Message Date
Misha Brukman
29445f8a8b * Add a BoolAlignment field to TargetData, default is 1 byte 
* Fix spacing

llvm-svn: 15119
 2004-07-23 01:08:13 +00:00
Chris Lattner
9c326b6cc8 costmetic changes 
llvm-svn: 15118
 2004-07-22 23:05:12 +00:00
Misha Brukman
670b1f6a75 Let's not get carried away here, please. 
llvm-svn: 15117
 2004-07-22 22:43:21 +00:00
John Criswell
9c8cbfff53 Give some credit to Oscar. Should help to address Bug#13. 
llvm-svn: 15116
 2004-07-22 22:11:16 +00:00
Chris Lattner
54f8932b3b Fix broken -debug printing 
llvm-svn: 15115
 2004-07-22 21:54:22 +00:00
Chris Lattner
0fbe7e1e60 The default has not been 'simple' for AGES! 
llvm-svn: 15114
 2004-07-22 21:46:02 +00:00
Chris Lattner
1e21b8c96f Remove some abandoned code that was never finished. If needed in the future 
it can be ressurected from CVS.

llvm-svn: 15113
 2004-07-22 21:32:38 +00:00
Chris Lattner
093d84c480 Remove some (LARGE) abandoned code for the release. If this is ever needed 
again in the future, it can be resurrected out of CVS

llvm-svn: 15112
 2004-07-22 21:30:35 +00:00
Chris Lattner
767638fe6d Make linear scan the default 
llvm-svn: 15111
 2004-07-22 18:42:00 +00:00
Misha Brukman
1109566c8d * Change bool from cInt to cByte (for now) 
* Don't allow negative immediates to users of unsigned immediates
* Fix long compares
* Support <const int>, op as a potential immediate candidate
* Fix sign extension of short and byte loads
* Fix and improve integer casts
* Fix passing of doubles as vararg functions

Patch contributed by Nate Begeman.

llvm-svn: 15109
 2004-07-22 15:58:04 +00:00
Alkis Evlogimenos
4b4712b58d Put variable name to a separate line. 
llvm-svn: 15108
 2004-07-22 15:30:33 +00:00
Misha Brukman
752cdcc2a5 Fix indentation and wrap code at 80 cols 
llvm-svn: 15107
 2004-07-22 15:26:23 +00:00
Alkis Evlogimenos
ba7fdf3568 Sorting is now handled by both linearscan and iterative scan so live 
intervals need not be sorted anymore. Removing this redundant step
improves LiveIntervals running time by 5% on 176.gcc.

llvm-svn: 15106
 2004-07-22 15:18:10 +00:00
Alkis Evlogimenos
717d6cd988 Fit to 80 columns. 
llvm-svn: 15105
 2004-07-22 14:29:31 +00:00
Chris Lattner
abe9575868 Remove redundant SCCP pass 
Add new DSE pass.  Add a temporary option to disable it in case we need it
This is going in after the July 22 nightly tester run, so we'll wait until the 23rd to see it
:)

llvm-svn: 15104
 2004-07-22 08:34:33 +00:00
Alkis Evlogimenos
0292045897 Some compile time improvements resulting in a 1sec speedup in the 5sec 
compilation of gcc:

* Use vectors instead of lists for the intervals sets
* Use a heap for the unhandled set to keep intervals always sorted and
  makes insertions back to the heap very fast (compared to scanning a
  list)

llvm-svn: 15103
 2004-07-22 08:14:44 +00:00
Chris Lattner
d1cfccd01e New prototype 
llvm-svn: 15102
 2004-07-22 08:07:30 +00:00
Chris Lattner
7e9731bc4f This is a trivial dead store elimination pass. It very very simple and 
can be improved in many ways.  But: stop laughing, even with -basicaa it
deletes 15% of the stores in 252.eon :)

llvm-svn: 15101
 2004-07-22 08:00:28 +00:00
Chris Lattner
00c80f345f Trivial testcase for dse 
llvm-svn: 15100
 2004-07-22 07:59:20 +00:00
Chris Lattner
e3adc34ea7 Clean up reference counting to stop "leaking" alias sets 
llvm-svn: 15099
 2004-07-22 07:58:18 +00:00
Chris Lattner
21c0ddacf2 Remove extraneous punctuation 
llvm-svn: 15098
 2004-07-22 05:51:56 +00:00
Chris Lattner
7b301dfa9d Update GC intrinsics to take a pointer to the object as well as a pointer 
to the field being updated.  Patch contributed by Tobias Nurmiranta

llvm-svn: 15097
 2004-07-22 05:51:13 +00:00
Chris Lattner
59c0771263 Updates to gc intrinsics, contributed by Tobias Nurmiranta 
llvm-svn: 15096
 2004-07-22 05:50:01 +00:00
Chris Lattner
b6c0676755 Update documentation for gc intrinsics change. Contributed by 
Tobias Nurmiranta

llvm-svn: 15095
 2004-07-22 05:49:38 +00:00
Chris Lattner
d88c0923db Update gc intrinsics to take pointer to object as well as pointer to field. 
Patch contributed by Tobias Nurmiranta

llvm-svn: 15094
 2004-07-22 05:48:38 +00:00
Alkis Evlogimenos
1cae25921d Use reverse iterators when updating the vector, since scanning from 
the end will reduce erase() runtimes.

llvm-svn: 15093
 2004-07-22 02:16:53 +00:00
Chris Lattner
25dd6b0a24 That funny 2-address lowering pass can also cause multiple definitions, 
fortunately, they are easy to handle if we know about them.  This patch fixes
some serious pessimization of code produced by the linscan register allocator.

llvm-svn: 15092
 2004-07-22 00:04:14 +00:00
Chris Lattner
eb21652fba Minor cleanups 
llvm-svn: 15091
 2004-07-21 23:17:57 +00:00
Chris Lattner
e3d3cd3e71 Fix cases where we generated horrible code like this: 
mov %EDI, 12
        add %EDI, %ECX
        mov %ECX, 12
        add %ECX, %EDX
        mov %EDX, 12
        add %EDX, %ESI

instead (really!) generate this:

        add %ECX, 12
        add %EDX, 12
        add %ESI, 12

llvm-svn: 15090
 2004-07-21 21:28:26 +00:00
Brian Gaeke
f18cdca667 These files don't need to include <iostream> since they include "Support/Debug.h". 
llvm-svn: 15089
 2004-07-21 20:50:33 +00:00
Brian Gaeke
18a3ff1140 Include <iostream> here, because most people using DEBUG() want to use std::cerr too. 
This means that users of this file do not also need to include <iostream>.

llvm-svn: 15088
 2004-07-21 20:50:22 +00:00
Misha Brukman
28e92a3fde * Add the lost fix to define the second reg of a 2-reg representation of longs 
* Fix opcode RLWNM -> RLWINM since it uses an immediate const shift value

llvm-svn: 15087
 2004-07-21 20:30:18 +00:00
Misha Brukman
9543849102 * Speed up canUseAsImmediateForOpcode() by comparing Operand before 
dyn_cast<>ing and checking Constant's value
* Convert tabs to spaces

llvm-svn: 15086
 2004-07-21 20:22:06 +00:00
Chris Lattner
b77bda4432 * Further cleanup. 
* Test for whether bits are shifted out during the optzn.

If so, the fold is illegal, though it can be handled explicitly for setne/seteq

This fixes the miscompilation of 254.gap last night, which was a latent bug
exposed by other optimizer improvements.

llvm-svn: 15085
 2004-07-21 20:14:10 +00:00
Misha Brukman
7507403c2b * Fix printing of signed immediate values (Nate Begeman) 
* Fix printing of `zeroinitializer'
* Fix printing of `linkonce' globals, complete with stubs

llvm-svn: 15084
 2004-07-21 20:11:11 +00:00
Misha Brukman
64f203922d * Fix printing of signed immediate values 
* Generation of opcodes that take 16 bit immediates
* Rewrote multiply to be correct for 64 bit values
* Rewrote all the long handling to be correct for PowerPC
* Fix visitSelectInst() to define the upper register of the pair of regs
  representing a long value

Patch contributed by Nate Begeman.

llvm-svn: 15083
 2004-07-21 20:09:08 +00:00
Chris Lattner
a3c10c2012 Make cast-cast code a bit more defensive 
"simplify" a bit of code for comparison/and folding

llvm-svn: 15082
 2004-07-21 19:50:44 +00:00
Misha Brukman
752584b520 Use addSImm() instead of addImm() for stack offsets, which may be negative. 
llvm-svn: 15081
 2004-07-21 19:36:57 +00:00
Misha Brukman
77e3529f65 Reid doesn't need a definite article in front of his name. 
llvm-svn: 15080
 2004-07-21 18:04:27 +00:00
Misha Brukman
f420620da9 Delete extra space; add <p> tags around text within a <div> 
llvm-svn: 15079
 2004-07-21 18:02:43 +00:00
Alkis Evlogimenos
40d8d044fe Fix analysis name. 
llvm-svn: 15078
 2004-07-21 17:23:44 +00:00
Misha Brukman
3d395cbda3 Add SUBI instruction 
llvm-svn: 15077
 2004-07-21 15:53:04 +00:00
Misha Brukman
f432931d8c Fix spelling of `iterative scan' 
llvm-svn: 15075
 2004-07-21 12:53:14 +00:00
Misha Brukman
bfa2cebdc6 * Uncomment rule for location of LLI (formerly commented out: typo?) 
* Add space between VAR and `='

llvm-svn: 15074
 2004-07-21 12:47:40 +00:00
Alkis Evlogimenos
183f8af791 Clear spilled list at once. Remove unused vector. 
llvm-svn: 15073
 2004-07-21 12:00:10 +00:00
Alkis Evlogimenos
c767432a26 Change std::list into a std::vector for IntervalSets. This reduces 
compile time for 176.gcc from 5.6 secs to 4.7 secs.

llvm-svn: 15072
 2004-07-21 09:46:55 +00:00
Alkis Evlogimenos
441f3a155d Add greater_ptr functor. 
llvm-svn: 15070
 2004-07-21 08:38:06 +00:00
Alkis Evlogimenos
8a162136e1 Improve file comment. 
llvm-svn: 15069
 2004-07-21 08:28:39 +00:00
Alkis Evlogimenos
b5f60641f4 Add Iterative scan register allocator. 
llvm-svn: 15068
 2004-07-21 08:24:35 +00:00
Alkis Evlogimenos
75dbcf6d06 Linearscan is no longer experimental. 
llvm-svn: 15067
 2004-07-21 08:18:50 +00:00