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Author SHA1 Message Date
Chris Lattner
0bafa9818b Make linear scan the default 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15111 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 18:42:00 +00:00
Misha Brukman
2ed17cadb4 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15109 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:58:04 +00:00
Alkis Evlogimenos
77c4c4da24 Put variable name to a separate line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15108 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:30:33 +00:00
Misha Brukman
75fa4e4f99 Fix indentation and wrap code at 80 cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15107 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:26:23 +00:00
Alkis Evlogimenos
d3014edc51 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15106 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 15:18:10 +00:00
Alkis Evlogimenos
82c24fba8a Fit to 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15105 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 14:29:31 +00:00
Chris Lattner
b11a4637fe 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
:)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15104 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:34:33 +00:00
Alkis Evlogimenos
53eb37340c 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15103 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:14:44 +00:00
Chris Lattner
3ede6adf18 New prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15102 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:07:30 +00:00
Chris Lattner
0fb56afab1 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 :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15101 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 08:00:28 +00:00
Chris Lattner
5e299fc6cf Trivial testcase for dse 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15100 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 07:59:20 +00:00
Chris Lattner
b8a31ace2c Clean up reference counting to stop "leaking" alias sets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15099 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 07:58:18 +00:00
Chris Lattner
199edde707 Remove extraneous punctuation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15098 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:51:56 +00:00
Chris Lattner
93c9587fbb 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15097 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:51:13 +00:00
Chris Lattner
9545a1797b Updates to gc intrinsics, contributed by Tobias Nurmiranta 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15096 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:50:01 +00:00
Chris Lattner
728f03f2ad Update documentation for gc intrinsics change. Contributed by 
Tobias Nurmiranta


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15095 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:49:38 +00:00
Chris Lattner
de1618f1bb Update gc intrinsics to take pointer to object as well as pointer to field. 
Patch contributed by Tobias Nurmiranta


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15094 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 05:48:38 +00:00
Alkis Evlogimenos
10e169b038 Use reverse iterators when updating the vector, since scanning from 
the end will reduce erase() runtimes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15093 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 02:16:53 +00:00
Chris Lattner
6beef3e1a0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15092 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-22 00:04:14 +00:00
Chris Lattner
1e31363a9e Minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15091 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 23:17:57 +00:00
Chris Lattner
3dbb504081 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15090 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 21:28:26 +00:00
Brian Gaeke
7848e68c16 These files don't need to include <iostream> since they include "Support/Debug.h". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15089 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:50:33 +00:00
Brian Gaeke
7d02766247 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>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15088 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:50:22 +00:00
Misha Brukman
a31f1f7cb2 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15087 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:30:18 +00:00
Misha Brukman
17a9000ac8 * Speed up canUseAsImmediateForOpcode() by comparing Operand before 
dyn_cast<>ing and checking Constant's value
* Convert tabs to spaces


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15086 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:22:06 +00:00
Chris Lattner
f0cacc0ae7 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15085 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:14:10 +00:00
Misha Brukman
97a296f743 * Fix printing of signed immediate values (Nate Begeman) 
* Fix printing of `zeroinitializer'
* Fix printing of `linkonce' globals, complete with stubs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15084 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:11:11 +00:00
Misha Brukman
1013ef5228 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15083 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 20:09:08 +00:00
Chris Lattner
5eb919405c Make cast-cast code a bit more defensive 
"simplify" a bit of code for comparison/and folding


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15082 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 19:50:44 +00:00
Misha Brukman
e0380e0c42 Use addSImm() instead of addImm() for stack offsets, which may be negative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15081 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 19:36:57 +00:00
Misha Brukman
1721784a1b Reid doesn't need a definite article in front of his name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15080 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 18:04:27 +00:00
Misha Brukman
ebbbf25dc7 Delete extra space; add <p> tags around text within a <div> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15079 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 18:02:43 +00:00
Alkis Evlogimenos
d03451ef47 Fix analysis name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15078 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 17:23:44 +00:00
Misha Brukman
53d9a48855 Add SUBI instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15077 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 15:53:04 +00:00
Misha Brukman
1e635c3400 Fix spelling of `iterative scan' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15075 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 12:53:14 +00:00
Misha Brukman
712c0e256e * Uncomment rule for location of LLI (formerly commented out: typo?) 
* Add space between VAR and `='


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15074 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 12:47:40 +00:00
Alkis Evlogimenos
fc29e63afe Clear spilled list at once. Remove unused vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15073 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 12:00:10 +00:00
Alkis Evlogimenos
2d54705c4b Change std::list into a std::vector for IntervalSets. This reduces 
compile time for 176.gcc from 5.6 secs to 4.7 secs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15072 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 09:46:55 +00:00
Alkis Evlogimenos
7b32639362 Add greater_ptr functor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15070 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 08:38:06 +00:00
Alkis Evlogimenos
3b1af0b3fc Improve file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15069 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 08:28:39 +00:00
Alkis Evlogimenos
910d0d6066 Add Iterative scan register allocator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15068 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 08:24:35 +00:00
Alkis Evlogimenos
c8dec2c23e Linearscan is no longer experimental. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15067 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 08:18:50 +00:00
Chris Lattner
6d4b0d723d Add capability to remove aliasing aliassets from an AST 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15066 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 07:04:26 +00:00
Chris Lattner
877ad7d80b Add a bunch of new functionality, primarily to do with removing aliasing 
pointers from an AST.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15065 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 07:03:57 +00:00
Chris Lattner
12c1155403 Make the AST interface a bit richer by returning whether an insertion caused 
an insertion or not (because the pointer set already existed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15064 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 05:18:04 +00:00
Chris Lattner
e8a7e593e6 Remove special casing of pointers and treat them generically as integers of 
the appopriate size.  This gives us the ability to eliminate int -> ptr -> int


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15063 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 04:27:24 +00:00
Chris Lattner
bb8f43c8fc Do not ignore casts unless they are pointer-pointer casts. This caused us 
to miscompile the SingleSource/Regression/C++/pointer_member.cpp program.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15062 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 03:56:54 +00:00
Brian Gaeke
adfe28d136 Regenerated using autoconf-2.57. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15061 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 03:50:25 +00:00
Brian Gaeke
a4d718f03c Add AC_MSG_CHECKING and AC_MSG_RESULT statements which were missing 
from two of our custom checks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15060 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 03:50:01 +00:00
Brian Gaeke
d59a64797b Regenerated with autoconf/autoheader 2.57 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15059 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-07-21 03:33:58 +00:00