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4585969e87
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9418 Commits

Author SHA1 Message Date
Andrew Lenharth
4585969e87 beter Select on FP 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20424 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 21:47:53 +00:00
Chris Lattner
6d9b69fd5f Print -X like this: 
double test(double l1_X) {
  return (-l1_X);
}

instead of like this:

double test(double l1_X) {
  return (-0x0p+0 - l1_X);
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20423 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 21:12:04 +00:00
Andrew Lenharth
f3f475efee LSR cleanup patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20422 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 19:03:21 +00:00
Chris Lattner
f7fe494c19 Do not lower malloc's to pass "sizeof" expressions like this: 
ltmp_0_7 = malloc(((unsigned )(&(((signed char (*)[784])/*NULL*/0)[1u]))));

Instead, just emit the literal constant, like this:

  ltmp_0_7 = malloc(784u);

This works around a bug in ICC 8.1 compiling the CBE generated code.  :-(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20415 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 01:04:50 +00:00
Chris Lattner
5f792c2c53 Add an optional argument to lower to a specific constant value instead of 
to a "sizeof" expression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20414 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 01:03:43 +00:00
Misha Brukman
0fbd914362 Fix the spelling of the word `the' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20412 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 23:17:31 +00:00
Chris Lattner
31ab1b3d74 Print the module ID as a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20411 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 23:12:40 +00:00
Chris Lattner
4318a3d0e9 cleanup the cfg after lsr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20410 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 21:56:00 +00:00
Andrew Lenharth
74d00d860e remove 32 sign extend after 32 sextload and handle small negative constant 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20408 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 17:23:03 +00:00
Andrew Lenharth
e4f161c909 Added LSR as a beta pass for alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20407 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 17:21:38 +00:00
Chris Lattner
0c7490617a Add a temporary option for llc-beta: -enable-lsr-for-ppc, which turns on 
Loop Strength Reduction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20399 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 06:19:22 +00:00
Reid Spencer
1af69a8131 Be slightly more accurate in an error message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20397 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 05:45:56 +00:00
Chris Lattner
ded3613fef Fix a nasty order of evaluation bug that Gabor Greif ran into. Here's an 
explanation from IRC:

	|sabre|	I think it's an order of evaluation thing
	|sabre|	for me, the RHS of the assignment is evaluated first
	|sabre|	getTypeDescription checks to see if ConcreteTypeDescription[Ty] contains anything
	|sabre|	since it doesn't, it computes and returns the value
	|sabre|	this gets put into the map.
	|sabre|	For you, the LHS is evaluated first.
	|sabre|	Map[Ty] (aka ConcreteTypeDescriptions[Ty]) inserts an empty string into the map, returning a reference
	|sabre|	getTypeDesc then sees the empty string in the map
	|sabre|	and returns it
	|sabre|	bork :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20394 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-02 03:54:43 +00:00
Jeff Cohen
0456e4a079 Fixed the following LSR bugs: 
* Loop invariant code does not dominate the loop header, but rather
    the end of the loop preheader.

  * The base for a reduced GEP isn't a constant unless all of its
    operands (preceding the induction variable) are constant.

  * Allow induction variable elimination for the simple case after all.

Also made changes recommended by Chris for properly deleting
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20383 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-01 03:46:11 +00:00
Alkis Evlogimenos
d0656fc94d Lower llvm.isunordered(a, b) into a != a | b != b. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20382 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-01 02:07:58 +00:00
Chris Lattner
ca76f357b9 Remove tabs from file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20380 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:36:15 +00:00
Chris Lattner
33e9d29b3b Add support to the C backend for llvm.prefetch. Patch contributed by 
Justin Wick!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20378 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:29:46 +00:00
Chris Lattner
edac2d1a80 recognize llvm.prefetch. Patch contributed by Justin Wick! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20377 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:28:00 +00:00
Chris Lattner
6f72282e02 Verify llvm.prefetch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20376 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:27:42 +00:00
Chris Lattner
0942b7caf1 Lower prefetch to a noop, patch contributed by Justin Wick! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20375 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 19:27:23 +00:00
Andrew Lenharth
e699e95571 fix integer division and stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20372 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 17:22:18 +00:00
Jeff Cohen
14dc638081 Fix crash in LSR due to attempt to remove original induction variable. However, 
for reasons explained in the comments, I also deactivated this code as it needs
more thought.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20367 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-28 00:08:56 +00:00
Jeff Cohen
5e1e5e13ff PHI nodes were incorrectly placed when more than one GEP is reduced in a loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20360 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 21:08:04 +00:00
Jeff Cohen
f465db6c6a First pass at improved Loop Strength Reduction. Still not yet ready for prime time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20358 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 19:37:07 +00:00
Chris Lattner
3e27952a8b Use const iterators where possible. Patch by Evan Jones! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20354 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 19:06:10 +00:00
Chris Lattner
35c81b0b12 Teach globalopt how memset/cpy/move affect memory, to allow better optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20352 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 18:58:52 +00:00
Chris Lattner
da895d6337 Fix spelling, patch contributed by Gabor Greif! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20343 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 06:18:25 +00:00
Chris Lattner
f8db8a0432 Fix spelling, patch contributed by Gabor Greif 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20342 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 06:15:51 +00:00
Chris Lattner
e56509c697 Remove some stuff I checked in accidentally 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20340 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-27 04:32:35 +00:00
Chris Lattner
7192e501eb DCE a dead function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20339 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-26 23:36:45 +00:00
Reid Spencer
eaa06bb979 Implement an isBytecodeArchive method to determine if an archive contains 
bytecode file members or not.
Patch Contributed By Adam Treat


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20338 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-26 22:00:32 +00:00
Chris Lattner
7ffc07dcf7 1 + 100 + 51 == 152, not 52. 
If we fold three constants together (c1+c2+c3), make sure to keep
LHSC updated, instead of reusing (in this case), the 1 instead of the
partial sum.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20337 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-26 18:50:19 +00:00
Chris Lattner
be54dcc8a9 remove extraneous cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20334 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-26 18:33:28 +00:00
Andrew Lenharth
2b6c4f554b make BB labels be exported for debuging, add fp negation optimization, further pecimise the FP instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20332 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-25 22:55:15 +00:00
Chris Lattner
6e84bd7d59 Handle null a bit more carefully. 
Actually teach dsa about select instructions.  This doesn't affect the
graph in any way other than not setting a spurious U marker on pointer
nodes that are selected.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20324 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-25 01:27:48 +00:00
Chris Lattner
753b113cdf This instruction: 
X = gep null, ...

Used to not create a scalar map entry for X, which caused clients to barf.
This is bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20316 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 19:55:31 +00:00
Chris Lattner
d7642c4f2d Fix a bug introduced by revision 1.187 of this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20308 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 18:48:07 +00:00
Andrew Lenharth
016947578f fix Allocas. Really. I mean it this time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20306 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 18:36:32 +00:00
Chris Lattner
aab1820816 Fix some problems where the verifier would crash on invalid input instead of 
reporting the problem and exiting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20302 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 16:58:29 +00:00
Chris Lattner
623369ac56 Implement Transforms/SimplifyCFG/switch_thread.ll 
This does a simple form of "jump threading", which eliminates CFG edges that
are provably dead.  This triggers 90 times in the external tests, and
eliminating CFG edges is always always a good thing! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20300 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 06:17:52 +00:00
Chris Lattner
d1a326006d switch instructions only allow constantints for their values, be more specific. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20298 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 05:32:09 +00:00
Chris Lattner
7e6182319d use more specific cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20297 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 05:26:04 +00:00
Chris Lattner
69331f5726 add more checking 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20296 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 05:25:17 +00:00
Chris Lattner
83beacddc9 Do not read free'd memory when printing an error message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20295 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 04:59:49 +00:00
Chris Lattner
ad993cbb77 add a new method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20293 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 02:37:26 +00:00
Tanya Lattner
00aaadf9f0 Only print out machine instructions before modulo scheduling if we are actually doing modulo scheduling! :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20292 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-24 02:14:44 +00:00
Andrew Lenharth
3a7118d7da Ah the problems you have to fix when you stray from the One True Way (TM) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20290 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-23 17:33:42 +00:00
Chris Lattner
1f21ef1511 make this more efficient. Scan up to 16 nodes, not the whole list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20289 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-23 16:53:04 +00:00
Chris Lattner
8daf056c90 new method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20288 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-23 16:51:11 +00:00
Chris Lattner
35f0aecdb0 Reduce the amount of searching this assertion does. On a testcase of mine, 
this reduces the time for -simplifycfg in a debug build from 106s to 14.82s


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20286 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-02-23 07:09:08 +00:00