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19234 Commits

Author SHA1 Message Date
Owen Anderson
139fe848a2 Perform PRE of comparison operators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37536 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 18:35:31 +00:00
Chris Lattner
fdbe720416 fix x86-64 mmx calling convention for real, which passes in integer gprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37534 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 05:08:10 +00:00
Chris Lattner
6b7c21cc30 fix mmx handling bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37533 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 05:01:50 +00:00
Nick Lewycky
ae5eb7accf Fix edge case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37532 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 04:20:33 +00:00
Evan Cheng
1c9f91d7b2 Don't change CFG during analysis stage. Do so during ifcvt and invalidate predecessors accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37531 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-09 01:03:43 +00:00
Owen Anderson
b8b873cb7d Collect statistics from GVN-PRE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37530 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 22:02:36 +00:00
Evan Cheng
7e75ba802e Carefully remove extraneous CFG edges after each ifcvt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37529 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 22:01:07 +00:00
Evan Cheng
bfd2ec4a8e Add a utility routine to check for unpredicated terminator instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 21:59:56 +00:00
Lauro Ramos Venancio
61718a6285 Define AsmTransCBE for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37527 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 21:06:23 +00:00
Owen Anderson
a7f916cf89 Fix typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37526 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 20:57:08 +00:00
Owen Anderson
8338ff5ff1 Fix a bug that was causing the elimination phase not to replace values when it should be. 
With this patch, GVN-PRE now correctly optimizes the example from the thesis.

Many thanks to Daniel Berlin for helping me find errors in this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37525 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 20:44:02 +00:00
Evan Cheng
2acdbcccd8 Correct transfer predicate information. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37524 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 19:17:12 +00:00
Evan Cheng
edf4896a14 Hidden options to help debugging ifcvt issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37523 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 19:10:51 +00:00
David Greene
2513330de8 Factor live variable analysis so it does not do register coalescing 
simultaneously.  Move that pass to SimpleRegisterCoalescing.

This makes it easier to implement alternative register allocation and
coalescing strategies while maintaining reuse of the existing live
interval analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 17:18:56 +00:00
Evan Cheng
ac5f142b9f Allow more cmp / bcc to be predicated; clean up triangle ifcvt checking code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37518 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 09:36:04 +00:00
Evan Cheng
1fc7cb695c Fix ARM condition code subsumission check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37517 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 09:14:47 +00:00
Evan Cheng
f81dea45b5 tBcc is not a barrier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37516 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 09:13:23 +00:00
Duncan Sands
6cc7608213 Use more realistically sized vectors. Reserve capacity if we know in advance 
how much will be used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37515 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 08:59:11 +00:00
Owen Anderson
900997ba3b Small bugfix, and const-ify some methods (Thanks, Bill). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37513 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 01:52:45 +00:00
Devang Patel
dba2413b2e Update LoopSimplify to require and preserve DominatorTree only. 
Now LoopSimplify does not require nor preserve ETForest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 01:50:32 +00:00
Dale Johannesen
1a90a5aebe Make throttle a hidden parameter, per review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 01:08:52 +00:00
Owen Anderson
397d405731 Add partial redundancy elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37510 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 01:03:01 +00:00
Dale Johannesen
53af4c01a8 Throttle tail merging; handling blocks with large numbers of predecessors 
is too slow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37509 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:34:27 +00:00
Devang Patel
53c279b194 Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:17:13 +00:00
Devang Patel
f86a73cbef Do not preserve ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37506 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 00:02:08 +00:00
Devang Patel
6ea7ac6a1e Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37505 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 23:53:38 +00:00
Devang Patel
e029b2c369 Add instruction level dominates(A,B) interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 23:52:40 +00:00
Evan Cheng
27af5c414b Only remove the edge from entry to false if false block is merged. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 22:31:28 +00:00
Devang Patel
468502e41a Do not require ETForest. Now it is unused by LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37502 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 22:21:15 +00:00
Devang Patel
4b90e3a276 Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37501 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 22:17:16 +00:00
Devang Patel
326821ef12 Use DominatorTree instead of ETForest. 
This allows faster immediate domiantor walk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37500 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:57:03 +00:00
Devang Patel
b7d9dfc7ba Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37499 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:42:15 +00:00
Devang Patel
fa51f9ae12 Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37498 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:35:27 +00:00
Dale Johannesen
62000eee7d Do not change the size of function arguments. PR 1489. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37496 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 21:07:15 +00:00
Devang Patel
a97e040e05 Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37495 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 18:45:06 +00:00
Devang Patel
387b8cbc2d Use DominatorTree instead of ETForest. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37494 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 18:40:55 +00:00
Devang Patel
9a51157db5 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37492 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 17:47:21 +00:00
Tanya Lattner
b62fa8ab6b Formating fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37491 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 17:12:16 +00:00
Evan Cheng
f476961ae6 ifcvt a triangle: don't merge ifcvt block with rejoin block if it can fall through to it. If merged, the resulting block is not a candidate for iterative ifcvting since it contains both predicated and non-predicated code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37487 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 08:13:00 +00:00
Zhou Sheng
5cbf316686 Add assert to check if the attributes ZExt/SExt, NoAlias are apply to the 
correct type of parameters.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37486 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 06:12:03 +00:00
Evan Cheng
d4de6d91b2 Lots of bug fixes. Now finally in a reasonable state. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37485 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 02:12:15 +00:00
Evan Cheng
9328c1ac66 Stupid cut-n-paste bug caused me soooo much grief. Why wasn't there a compilation warning? I blame it on the FE folks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37484 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-07 01:37:54 +00:00
Lauro Ramos Venancio
9613e871d2 Propagate alignment, section name and visibility when linking "appending 
global values".
Fix noinline linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37482 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 22:01:12 +00:00
Tanya Lattner
682f683669 Instruct the inliner to obey the noinline attribute. Add test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37481 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 21:59:26 +00:00
Chris Lattner
4e2288b9de simplify this code and fix PR1493, now that llvm-gcc3 is dead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 20:51:41 +00:00
Devang Patel
7d832fe6c1 Add new dominator tree node into dominator tree node map. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37475 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 20:08:11 +00:00
Lauro Ramos Venancio
d0499af703 Fix PR1499. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37472 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 17:08:48 +00:00
Owen Anderson
96dd9a8b1b Quick patch to fix the build, based on what it appears Evan meant to write. 
Evan, please check that this is in fact correct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37471 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 16:22:00 +00:00
Duncan Sands
b32edb4b22 Fold the exception actions table harder: if two typeid lists start the 
same, only output one copy of the common part.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37470 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 15:37:31 +00:00
Nick Lewycky
51e844b601 Optimize this test. Firstly, only Instructions may use other Instructions. 
Secondly, checking whether removal succeeded tells you whether it was in
the map to begin with.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37469 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 11:26:20 +00:00
Evan Cheng
2c614c5c69 Mark these instructions clobbersPred. They modify the condition code register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37468 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 10:17:05 +00:00
Evan Cheng
7a655479ae Lots of bug fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37467 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 10:16:17 +00:00
Evan Cheng
c1d7384cb0 Added clobbersPred. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37466 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 10:15:28 +00:00
Duncan Sands
9fac0b5ff2 Additional fix for PR1422: make sure the landing pad label is placed in the 
correct machine basic block - do not rely on the eh.exception intrinsic
being in the landing pad: the loop optimizers can move it out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37463 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 10:05:18 +00:00
Bruno Cardoso Lopes
972f5896e4 Initial Mips support, here we go! =) 
- Modifications from the last patch included
  (issues pointed by Evan Cheng are now fixed).
- Added more MipsI instructions.
- Added more patterns to match branch instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37461 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 07:42:06 +00:00
Nick Lewycky
9d0332f7b4 Fix PR1487 and Transforms/IndVar/2007-06-06-DeleteDanglesPtr.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37459 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 04:12:20 +00:00
Nick Lewycky
5adcefb04d Inform ScalarEvolutions that we're deleting Values. 
This is the obviously correct part of the fix for PR1487.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37457 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 03:51:56 +00:00
Evan Cheng
3d6f60ec19 If a unconditional branch is added to branch to the false path during ifcvt, the predicated block cannot be iteratively ifcvted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37456 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 02:08:52 +00:00
Owen Anderson
12112af5e8 Add simple full redundancy elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37455 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 01:27:49 +00:00
Chris Lattner
b47f6124f4 Fix PR1495 and CodeGen/X86/2007-06-05-LSR-Dominator.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37454 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 01:23:55 +00:00
Evan Cheng
cb78d67a1a Minor statistics counting bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37451 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 01:12:44 +00:00
Evan Cheng
e705213b67 Fix a couple of typos and be smarter about order of blocks when ifcvt a diamond. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37449 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:57:55 +00:00
Devang Patel
743f7e8839 Avoid non-trivial loop unswitching while optimizing for size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37446 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-06 00:21:03 +00:00
Chris Lattner
1405d008d8 Fix a user-reported error building with GCC 3.4.4 on Cygwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37445 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 23:49:06 +00:00
Evan Cheng
993fc9594e Fix diamond shape ifcvt bugs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37444 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 23:46:14 +00:00
Owen Anderson
1d4eb6ab0d Fix a misunderstanding of the algorithm. Really, we should be tracking values 
and expression separately.  We can get around this, however, by only keeping
opaque values in TMP_GEN.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37443 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 23:46:12 +00:00
Owen Anderson
8f862c80bc Don't leak memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37442 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 22:11:49 +00:00
Evan Cheng
a1a9f408da ReplaceUsesOfBlockWith() can modify the predecessors list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37441 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 22:03:53 +00:00
Evan Cheng
e004317c66 Do not ifcvt if either true / false path is a backedge. Not profitable in almost all cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37440 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 20:38:42 +00:00
Devang Patel
a301a16841 Fix PR 1497 
Use separate pass id for CFGOnlyPrinter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37439 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 20:24:36 +00:00
Evan Cheng
5e148a37d3 Print predicate of the second instruction of the two-piece constant MI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37437 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 18:55:18 +00:00
Owen Anderson
359208032b Fix a small bug, some 80 cols violations, and add some more debugging output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37436 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 17:31:23 +00:00
Dan Gohman
d8af90c1da Allow insertelement, extractelement, and shufflevector to be hoisted/sunk 
by LICM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37435 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 16:05:55 +00:00
Evan Cheng
341dcccb4e PIC label asm printing cosmetic changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 07:36:38 +00:00
Evan Cheng
c53ef58a35 I had a senior moment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37433 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 07:05:25 +00:00
Zhou Sheng
febca3499e Commit first round work of PR1373. "noalias" is now fully supported in 
VMCore, BitCode, and Assembly. Documentation and test case paramattrs.ll
updated also.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37432 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 05:28:26 +00:00
Evan Cheng
8ed680cce3 If the predicated block requires an early exit, end the block there and add a unconditional branch to false block. AnalyzeBranch() does not understand early exits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37430 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 01:31:40 +00:00
Evan Cheng
f5305f9cc7 Fix some subtle bugs: bug during succeessor copying; incorrectly updating states of ifcvted blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37429 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-05 00:07:37 +00:00
Bill Wendling
851879c4cf Patches by Chuck Rose to unbreak V Studio builds. 
Thanks Chuck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37428 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:52:59 +00:00
Dale Johannesen
fe7e397100 Tail merging wasn't working for predecessors of landing pads. PR 1496. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37427 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:52:54 +00:00
Devang Patel
170f2b9bef s/ETNode::getChildren/ETNode::getETNodeChildren/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37426 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:45:02 +00:00
Owen Anderson
dbc705b73f Don't use std::set_difference when the two sets are sorted differently. Compute 
the difference manually instead.

This allows GVNPRE to produce correct analysis for the example in the GVNPRE
paper.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37425 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:34:56 +00:00
Owen Anderson
082fe7185e Fix a bunch of small bugs, and improve the debugging output significantly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37424 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 23:28:33 +00:00
Chris Lattner
f0a9aaba4c When rebuilding constant structs, make sure to honor the isPacked bit. 
This fixes PR1491 and GlobalOpt/2007-06-04-PackedStruct.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37423 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 22:23:42 +00:00
Evan Cheng
916d07cdfa Global ctors / dtors alignment shouldn't be hard-coded at 4. e.g. It could be 8 for 64-bit targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37421 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 20:39:18 +00:00
Evan Cheng
3ec425470f Forgot to check for if iterator reached the end. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37420 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 20:33:36 +00:00
Evan Cheng
111354ff99 Misuse of hasExternalLinkage(), should be checking isDeclaration(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37419 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 18:54:57 +00:00
Owen Anderson
5ea069fdda Make phi_translate correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37418 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 18:05:26 +00:00
Devang Patel
055756bf52 Add FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37417 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 17:38:00 +00:00
Devang Patel
83beaee227 s/DominatorTree::createNewNode/DominatorTree::addNewBlock/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37415 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:43:25 +00:00
Devang Patel
26a6908768 Add basic block level interface to change immediate dominator 
and create new node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37414 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:22:33 +00:00
Dan Gohman
3983358555 Pass the DAG to SDNode::dump to let it do more detailed dumps in some cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37413 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 16:17:33 +00:00
Dan Gohman
575e2f4ea8 Resolve implicit alignment before computing the FoldingSet information so 
that the CSE map always contains explicit alignment information. This allows
more loads to be CSE'd when there is a mix of explicit-alignment loads and
implicit-alignment loads.

Also, in SelectionDAG::FindModifiedNodeSlot, add the operands to the
FoldingSetNodeID before the load/store information instead of after, so
that it matches what is done elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37411 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 15:49:41 +00:00
Devang Patel
69bdf68fe6 Fix LLVM build on NetBSD. Patch by Neil Booth. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37410 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 15:28:57 +00:00
Evan Cheng
b6665f62c5 Let IfConverter loose. Allow more aggressive subsumptions; reorder basic blocks to expose more ifcvt opportunities; code clean up and fixes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37409 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 06:47:22 +00:00
Evan Cheng
0370fad74b Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37408 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 06:44:01 +00:00
Devang Patel
26042420d6 s/llvm::DominatorTreeBase::DomTreeNode/llvm::DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37407 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 00:32:22 +00:00
Owen Anderson
0fa6b37c6f Don't use the custom comparator where it's not necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37406 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 22:02:14 +00:00
Anton Korobeynikov
fb45086027 Add comments to fallsthrough cases. Also, this fixes PR1492 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37405 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 19:20:49 +00:00
Anton Korobeynikov
499d8f0c3b Check arguments & return types of main(). Abort in case of no match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37404 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 19:17:35 +00:00
Devang Patel
bec7647f98 s/DominatorTreeBase::Node/DominatorTreeBase:DomTreeNode/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37403 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 06:26:14 +00:00
Owen Anderson
10ac137d0b Remove an unused method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37402 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 05:58:25 +00:00
Owen Anderson
a724ac1a73 There's no need to have an Expression class... Value works just as well! This simplifies a lot of code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37401 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-03 05:55:58 +00:00
Chris Lattner
c621ae7bba update this entry, now that Anton implemented shift/and lowering for 
switches.  There is one really easy isel thing here with tst we are not
getting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37400 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 18:45:14 +00:00
Duncan Sands
09085fe63d The semantics of invoke require that we always jump to the unwind block 
(landing pad) when an exception unwinds through the call.  This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding.  There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo.  GCC does the first, and this patch makes
LLVM do the same as gcc.  However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code.  So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules.  The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run.  However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 17:16:06 +00:00
Duncan Sands
73ef58ab92 Integrate exception filter support and exception catch support. This 
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch).  What a deal!  Patch blessed by Anton.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37398 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 16:53:42 +00:00
Zhou Sheng
02031c0ff8 Make LowerCTPOP() support arbitrary bitwidth integer type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37397 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 04:10:33 +00:00
Dale Johannesen
8e63bf375d Fix CorrectExtraCFGEdges to allow for multiple LandingPad targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37394 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 00:08:15 +00:00
Dale Johannesen
b468163869 Fancier algorithm in tail-merge comment implemented, so remove comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37393 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 23:04:28 +00:00
Dale Johannesen
a5a2117a46 Implement smarter algorithm for choosing which blocks to tail-merge. 
See test/CodeGen/X86/test-pic-jtbl.ll for a case where it works well;
shaves another 10K off our favorite benchmark.  I was hesitant about
this because of compile speed, but seems to do OK on a bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37392 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 23:02:45 +00:00
Reid Spencer
e770787be1 For PR1486: 
Avoid overwriting the APInt instance with 0 bytes which causes the bitwidth
to be set to 0 (illegal) producing a subsequent assert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37391 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 22:23:29 +00:00
Devang Patel
e7ae1a9dee Insert new instructions in AliasSet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37390 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 22:15:31 +00:00
Owen Anderson
aa7d3351f0 clean() needs to process things in topological order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37389 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 22:00:37 +00:00
Evan Cheng
c354334ac4 Opcode modifier s comes after condition code. e.g. addlts, not addslt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37388 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 20:51:29 +00:00
Evan Cheng
b5a0690788 Correctly mark early-exit on the false path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37387 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 20:29:21 +00:00
Owen Anderson
8e21fb7df8 Fix Expression comparison, which in turn fixes a value numbering error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37386 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 17:34:47 +00:00
Evan Cheng
144fd1ff0f Set ARM ifcvt duplication limit to 3 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37385 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 08:28:59 +00:00
Duncan Sands
398898cc6a Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed 
as a null i8 pointer not as a 0 i32.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37383 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 08:18:30 +00:00
Evan Cheng
8c52938e44 Ifcvt triangle: don't ifcvt 'true' BB if it has other predecessors; don't merge 'false' BB if it has other predecessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37382 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 07:41:07 +00:00
Evan Cheng
df4da14948 Make jumptable non-predicable for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37381 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 00:56:15 +00:00
Evan Cheng
fe57a7e4df Remove a bogus check. Even terminators in a ifcvt need to be predicated. Unconditional branches can usually be converted to conditional ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37380 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 00:55:26 +00:00
Evan Cheng
5f70218c75 Allow multiple ifcvt candidates to share children blocks; add some debugging code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37379 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-01 00:12:12 +00:00
Owen Anderson
243f348c2a Add a topological sort function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37376 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 22:44:11 +00:00
Dale Johannesen
a52dd15137 Arrange for only 1 of multiple branches to landing pad to be kept. 
Do not remove empty landing pads (EH table needs to be updated)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37375 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 21:54:00 +00:00
Evan Cheng
f15d44cc10 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37374 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 20:53:33 +00:00
Chris Lattner
3a4205367d Fix the asmprinter so that a globalvalue can specify an explicit alignment 
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37373 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:57:45 +00:00
Lauro Ramos Venancio
8d410b6938 Fix PR1424. 
When a function has FP, the register scavenging spill slot offset already
was calculated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37371 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:27:58 +00:00
Owen Anderson
8214d50338 Attempt to fix up phi_translate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37366 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 00:42:15 +00:00
Evan Cheng
8258210ed4 Change traversal order to bottom up in preparation for more aggressive if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37365 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 19:49:19 +00:00
Chris Lattner
4e7e6cd13a Fix CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll, and PR1473. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37362 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 16:30:06 +00:00
Devang Patel
f38ac5dd39 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37360 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 15:29:37 +00:00
Chris Lattner
39a1c04323 Fix Transforms/ScalarRepl/2007-05-29-MemcpyPreserve.ll and the second 
half of PR1421, by not decimating structs with holes that are the source and
destination of a memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37358 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 06:11:23 +00:00
Dale Johannesen
44008c5918 Changed per review comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37355 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-30 00:32:01 +00:00
Dale Johannesen
95ef406e0f Make stable_sort in tail merging actually be stable (it never was, but didn't 
matter until my last change).  Reenable tail merging by default.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37354 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:47:50 +00:00
Evan Cheng
58fbb9f5ba Don't merge in tail block of a diamond if it has more than one predecessors after if-conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37353 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:37:20 +00:00
Evan Cheng
c6f2f6fbb9 For VFP2 fldm, fstm instructions, the condition code is printed after the address mode and size specifier. e.g. fstmiaseq, not fstmeqias. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37351 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:34:19 +00:00
Owen Anderson
2c0c51593d Fix a typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37350 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:34:14 +00:00
Evan Cheng
fd488edb1d For ldrb, strh, etc., the condition code is before the width specifier. e.g. streqh, not strheq. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37349 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:32:06 +00:00
Owen Anderson
e3072b292f Re-fix a bug, where I was now being too aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37348 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:26:30 +00:00
Owen Anderson
cdf8efde6a Use proper debugging facilities so other people don't have to look at my commented-out 
debugging lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37347 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 23:15:21 +00:00
Owen Anderson
9b6bd12ef0 Comment debug code out that I accidentally uncommented last time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37346 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 22:43:03 +00:00
Owen Anderson
b502bdb604 Add a place where I missed using the maximal set. Note that using the maximal 
set this way is _SLOW_.  Somewhere down the line, I'll look at speeding it up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37345 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 22:35:41 +00:00
Evan Cheng
c8ed9badfa If there is an empty block between a source and its successor block, it still requires a unconditional branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37344 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 22:31:16 +00:00
Owen Anderson
ea12a06a81 Very first part of a GVN-PRE implementation. It currently performs a bunch of analysis, and nothing more. It is also quite slow for the moment. However, 
it should give a sense of what's going on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37343 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 21:53:49 +00:00
Evan Cheng
62ccdbf0b3 Add missing const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37342 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 18:42:18 +00:00
Evan Cheng
f277ee4be7 Add missing const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 18:35:22 +00:00
Nicolas Geoffray
2fb813d70b Implementation of compilation callback in PPC ELF32 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37340 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 16:33:18 +00:00
Zhou Sheng
924361aef9 Correct the logic in LowerPartSet which cleared the bits from 0 to low-1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37331 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-26 03:43:13 +00:00
Chris Lattner
3adf951364 tighten up recursion depth again 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37330 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-25 02:19:06 +00:00
Evan Cheng
4bec8ae694 Silly boog. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37328 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-25 00:59:01 +00:00