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9523 Commits

Author SHA1 Message Date
Andrew Lenharth
f69a98cea3 fix up stack pointer adjustments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20442 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-04 21:40:02 +00:00
Chris Lattner
f57cc3b7e2 Trivial cleanup patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20436 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-04 20:27:46 +00:00
Andrew Lenharth
3381913322 fix FCMOVxx typo, set rem and div to hardcode target reg to be the same as the one the assembler uese, update ISel to put values in regs used by assembler for rem and div 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20434 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-04 20:09:23 +00:00
Jeff Cohen
2f3c9b7562 Add support for not strength reducing GEPs where the element size is a small 
power of two.  This emphatically includes the zeroeth power of two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20429 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-04 04:04:26 +00:00
Andrew Lenharth
8d46a268c5 turn on IEEE for compares 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20425 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-03 22:12:11 +00:00
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