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Author SHA1 Message Date
Chris Lattner
5c85946417 Even if there are not any induction variables in the loop, if we can compute 
the trip count for the loop, insert one so that we can canonicalize the exit
condition.

llvm-svn: 13015
 2004-04-17 18:08:33 +00:00
Chris Lattner
6d5decd7d4 Add support for evaluation of exp/log/log10/pow 
llvm-svn: 13011
 2004-04-16 22:35:33 +00:00
Chris Lattner
ed423cc09d Fix some really nasty dominance bugs that were exposed by my patch to 
make the verifier more strict.  This fixes building zlib

llvm-svn: 13002
 2004-04-16 18:08:07 +00:00
Misha Brukman
cb5de6bca6 Fix retriving parent Function. 
llvm-svn: 13001
 2004-04-16 17:37:12 +00:00
Misha Brukman
a2cc39ff28 Fit comment into 80 cols. 
llvm-svn: 12996
 2004-04-16 17:13:52 +00:00
Brian Gaeke
decd864ee4 Regenerated using autoconf-2.57. 
llvm-svn: 12995
 2004-04-16 17:13:44 +00:00
Brian Gaeke
66f747098a Refactor external benchmark checking stuff into one hairy 
macro-to-bind-them-all, called EXTERNAL_BENCHMARK().

llvm-svn: 12994
 2004-04-16 17:13:33 +00:00
Misha Brukman
52a9e3b31f Add idea about a disassembler. 
llvm-svn: 12993
 2004-04-16 16:55:30 +00:00
Brian Gaeke
76f386fd75 Switch to including <iostream> for compatibility with gcc-3.0.x (Debian). 
llvm-svn: 12990
 2004-04-16 16:28:33 +00:00
Misha Brukman
fdb346f70a * Fix capitalization of PICk 
* Wrap long lines to 80 cols

llvm-svn: 12988
 2004-04-16 16:20:07 +00:00
Brian Gaeke
4b9f67c638 Include <cmath> for compatibility with gcc 3.0.x (the system compiler on 
Debian.)

llvm-svn: 12986
 2004-04-16 15:57:32 +00:00
Brian Gaeke
2a087ad673 Include <string> for compatibility with gcc 3.0.x (the system compiler on 
Debian.)

llvm-svn: 12985
 2004-04-16 15:57:14 +00:00
Brian Gaeke
c465066a6c As a part of the bootstrapping process, the top-level tools-only target 
should not build projects.

llvm-svn: 12984
 2004-04-16 15:57:02 +00:00
Misha Brukman
aadcd46d25 Assert if deleting BasicBlock before removing it from Function. 
llvm-svn: 12983
 2004-04-16 15:47:21 +00:00
Misha Brukman
7c46021fe7 Assert if Instruction is being deleted before being removed from BasicBlock. 
llvm-svn: 12982
 2004-04-16 15:46:43 +00:00
Chris Lattner
a6f2680e2d Remove libraries that have no reason to be here, and keep breaking the nightly tester because their makefiles do not have the right dependencies!! 
llvm-svn: 12981
 2004-04-16 14:12:36 +00:00
Chris Lattner
bc458be5f9 Fix some of the strange CBE-only failures that happened last night. 
llvm-svn: 12980
 2004-04-16 06:03:17 +00:00
Chris Lattner
644ad23b21 Make sure to check for a very bad class of errors: an instruction 
that does not dominate all of its users, but is in the same basic block as
its users.  This class of error is what caused the mysterious CBE only
failures last night.

llvm-svn: 12979
 2004-04-16 05:51:47 +00:00
Chris Lattner
8f8bd7daac Bugpoint was not correctly capturing stderr! This caused it to "find" bugs 
that didn't exist, missing the ones that do :(

llvm-svn: 12978
 2004-04-16 05:35:58 +00:00
Chris Lattner
06eda01d1b Fix Inline/2004-04-15-InlineDeletesCall.ll 
Basically we were using SimplifyCFG as a huge sledgehammer for a simple
optimization.  Because simplifycfg does so many things, we can't use it
for this purpose.

llvm-svn: 12977
 2004-04-16 05:17:59 +00:00
Misha Brukman
df6d740b3e Add note about easier way to debug tests in the llvm tree. 
llvm-svn: 12972
 2004-04-15 21:01:21 +00:00
Misha Brukman
aa2862894c Add note about passing arguments to program being debugged. 
llvm-svn: 12970
 2004-04-15 20:49:32 +00:00
Chris Lattner
acf8b5189f New testcase that Brian provided which crashes the inliner 
llvm-svn: 12969
 2004-04-15 20:45:45 +00:00
Chris Lattner
ac2b465cb4 Fix a bug in the previous checkin: if the exit block is not the same as 
the back-edge block, we must check the preincremented value.

llvm-svn: 12968
 2004-04-15 20:26:22 +00:00
Brian Gaeke
e708b1d5ef Give SparcV9CodeEmitter a head-of-file comment and a PassName. 
llvm-svn: 12967
 2004-04-15 20:23:13 +00:00
Misha Brukman
97e81286e5 If we're going to use tabs, use them consistently. Maybe doxygen will find the 
@parameter line documentation that way, too.

llvm-svn: 12966
 2004-04-15 15:38:48 +00:00
Misha Brukman
978fd39ec7 Removed obsolete doxygen options (they were blank anyway). 
llvm-svn: 12965
 2004-04-15 15:33:49 +00:00
Misha Brukman
be6fcab94d The "best" of both worlds: readable C++ comments and valid HTML For doxygen. 
llvm-svn: 12964
 2004-04-15 15:30:15 +00:00
Misha Brukman
3fa1037635 Don't use invalid HTML in doxygen comments. 
llvm-svn: 12963
 2004-04-15 15:24:55 +00:00
Misha Brukman
ab36a84bda Don't use invalid HTML in a doxygen comment. 
llvm-svn: 12962
 2004-04-15 15:23:45 +00:00
Chris Lattner
dcf2ca93e6 Change the canonical induction variable that we insert. 
Instead of producing code like this:

Loop:
  X = phi 0, X2
  ...

  X2 = X + 1
  if (X != N-1) goto Loop

We now generate code that looks like this:

Loop:
  X = phi 0, X2
  ...

  X2 = X + 1
  if (X2 != N) goto Loop

This has two big advantages:
  1. The trip count of the loop is now explicit in the code, allowing
     the direct implementation of Loop::getTripCount()
  2. This reduces register pressure in the loop, and allows X and X2 to be
     put into the same register.

As a consequence of the second point, the code we generate for loops went
from:

.LBB2:  # no_exit.1
	...
        mov %EDI, %ESI
        inc %EDI
        cmp %ESI, 2
        mov %ESI, %EDI
        jne .LBB2 # PC rel: no_exit.1

To:

.LBB2:  # no_exit.1
	...
        inc %ESI
        cmp %ESI, 3
        jne .LBB2 # PC rel: no_exit.1

... which has two fewer moves, and uses one less register.

llvm-svn: 12961
 2004-04-15 15:21:43 +00:00
Chris Lattner
a86cf626b5 add some helpful methods. Rearrange #includes to proper order 
llvm-svn: 12960
 2004-04-15 15:16:02 +00:00
Chris Lattner
5c992ad183 Add some helpful methods 
llvm-svn: 12959
 2004-04-15 15:15:40 +00:00
Chris Lattner
e0156bd979 Factor a bunch of classes out into a public header 
llvm-svn: 12958
 2004-04-15 15:07:24 +00:00
Chris Lattner
0d220df227 Publically export all of these classes from the ScalarEvolutions.cpp file 
llvm-svn: 12957
 2004-04-15 15:06:59 +00:00
Chris Lattner
ff600e280d Unbreak the build 
llvm-svn: 12956
 2004-04-15 14:17:43 +00:00
Chris Lattner
276a6e102c Implement a FIXME: if we're going to insert a cast, we might as well only 
insert it once!

llvm-svn: 12955
 2004-04-14 22:01:22 +00:00
John Criswell
8a4525ae64 Remove code to adjust the iterator for llvm.readio and llvm.writeio. 
The iterator is pointing at the next instruction which should not disappear
when doing the load/store replacement.

llvm-svn: 12954
 2004-04-14 21:27:56 +00:00
Brian Gaeke
8e2fb33172 Fix typo. 
llvm-svn: 12953
 2004-04-14 21:21:56 +00:00
Chris Lattner
7f5e4b6d55 This is a trivial tweak to the addrec insertion code: insert the increment 
at the bottom of the loop instead of the top.  This reduces the number of
overlapping live ranges a lot, for example, eliminating a spill in an important
loop in 183.equake with linear scan.

I still need to make the exit comparison of the loop use the post-incremented
version of this variable, but this is an easy first step.

llvm-svn: 12952
 2004-04-14 21:11:25 +00:00
Brian Gaeke
2c02798e86 Add a TargetData to the PassManager regardless of the TargetMachine. 
This should unbreak the Sparc JIT again.

llvm-svn: 12949
 2004-04-14 17:45:52 +00:00
Brian Gaeke
cd21d1e40f Add a copy constructor for TargetData. 
llvm-svn: 12948
 2004-04-14 17:45:48 +00:00
Chris Lattner
6e00f5b3dc We are now on LLVM 1.3 
Make autoconf default to checking to look to see if our funny directory exists

llvm-svn: 12947
 2004-04-14 16:32:34 +00:00
Chris Lattner
36e43498f9 Regenerated 
llvm-svn: 12946
 2004-04-14 16:32:09 +00:00
John Criswell
bed6463449 Remove the return type check for llvm.readio. This check is done for all 
functions and is not needed here.
Simplify the pointer type check per Chris's suggestions.

llvm-svn: 12945
 2004-04-14 15:06:48 +00:00
John Criswell
e00ecd7e84 Added code to verify that llvm.readio's pointer argument returns something 
that matches its return type.

llvm-svn: 12944
 2004-04-14 14:49:36 +00:00
John Criswell
43d7449301 Test for memory mapped I/O intrinsics. 
llvm-svn: 12943
 2004-04-14 13:52:56 +00:00
John Criswell
11f7f60028 Finish adding the llvm.readio and llvm.writeio intrinsics. 
Sorry these didn't get in yesterday.

llvm-svn: 12942
 2004-04-14 13:46:52 +00:00
Chris Lattner
6fcf8c7402 ADd a trivial instcombine: load null -> null 
llvm-svn: 12940
 2004-04-14 03:28:36 +00:00
Chris Lattner
64431dbce7 This is the real fix for Codegen/X86/2004-04-13-FPCMOV-Crash.llx which works 
even when the "optimization" I added before is turned off.  It generates this
extremely pointless code:

test:
        fld QWORD PTR [%ESP + 4]
        mov %AL, 0
        test %AL, %AL
        fcmove %ST(0), %ST(0)
        ret

Good thing the optimizer will have removed this before code generation
anyway.  :)

llvm-svn: 12939
 2004-04-14 02:42:32 +00:00