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19043 Commits

Author SHA1 Message Date
Evan Cheng
859dab4bda Don't change CFG during analysis stage. Do so during ifcvt and invalidate predecessors accordingly. 
llvm-svn: 37531
 2007-06-09 01:03:43 +00:00
Owen Anderson
1e60429027 Collect statistics from GVN-PRE. 
llvm-svn: 37530
 2007-06-08 22:02:36 +00:00
Evan Cheng
7996fc5d23 Carefully remove extraneous CFG edges after each ifcvt. 
llvm-svn: 37529
 2007-06-08 22:01:07 +00:00
Evan Cheng
1a6c0341fd Add a utility routine to check for unpredicated terminator instruction. 
llvm-svn: 37528
 2007-06-08 21:59:56 +00:00
Lauro Ramos Venancio
ec8ae8443a Define AsmTransCBE for ARM. 
llvm-svn: 37527
 2007-06-08 21:06:23 +00:00
Owen Anderson
2cf00c37de Fix typo in a comment. 
llvm-svn: 37526
 2007-06-08 20:57:08 +00:00
Owen Anderson
4621335527 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.

llvm-svn: 37525
 2007-06-08 20:44:02 +00:00
Evan Cheng
515e2537d7 Correct transfer predicate information. 
llvm-svn: 37524
 2007-06-08 19:17:12 +00:00
Evan Cheng
49720a7312 Hidden options to help debugging ifcvt issues. 
llvm-svn: 37523
 2007-06-08 19:10:51 +00:00
David Greene
6b14050d1e 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.

llvm-svn: 37520
 2007-06-08 17:18:56 +00:00
Evan Cheng
a41764f141 Allow more cmp / bcc to be predicated; clean up triangle ifcvt checking code. 
llvm-svn: 37518
 2007-06-08 09:36:04 +00:00
Evan Cheng
4c6df8ba37 Fix ARM condition code subsumission check. 
llvm-svn: 37517
 2007-06-08 09:14:47 +00:00
Evan Cheng
8eff719058 tBcc is not a barrier. 
llvm-svn: 37516
 2007-06-08 09:13:23 +00:00
Duncan Sands
f31e17574a Use more realistically sized vectors. Reserve capacity if we know in advance 
how much will be used.

llvm-svn: 37515
 2007-06-08 08:59:11 +00:00
Owen Anderson
64daf17aa0 Small bugfix, and const-ify some methods (Thanks, Bill). 
llvm-svn: 37513
 2007-06-08 01:52:45 +00:00
Devang Patel
cfb3a761ae Update LoopSimplify to require and preserve DominatorTree only. 
Now LoopSimplify does not require nor preserve ETForest.

llvm-svn: 37512
 2007-06-08 01:50:32 +00:00
Dale Johannesen
74ffb6ffb3 Make throttle a hidden parameter, per review. 
llvm-svn: 37511
 2007-06-08 01:08:52 +00:00
Owen Anderson
ccd2616fbb Add partial redundancy elimination. 
llvm-svn: 37510
 2007-06-08 01:03:01 +00:00
Dale Johannesen
0903dd4e52 Throttle tail merging; handling blocks with large numbers of predecessors 
is too slow.

llvm-svn: 37509
 2007-06-08 00:34:27 +00:00
Devang Patel
d544f5262e Use DominatorTree instead of ETForest. 
llvm-svn: 37507
 2007-06-08 00:17:13 +00:00
Devang Patel
b5554f450a Do not preserve ETForest. 
llvm-svn: 37506
 2007-06-08 00:02:08 +00:00
Devang Patel
67ede3d635 Use DominatorTree instead of ETForest. 
llvm-svn: 37505
 2007-06-07 23:53:38 +00:00
Devang Patel
9772222f41 Add instruction level dominates(A,B) interface. 
llvm-svn: 37504
 2007-06-07 23:52:40 +00:00
Evan Cheng
2b9e9abed1 Only remove the edge from entry to false if false block is merged. 
llvm-svn: 37503
 2007-06-07 22:31:28 +00:00
Devang Patel
8d261e921f Do not require ETForest. Now it is unused by LICM. 
llvm-svn: 37502
 2007-06-07 22:21:15 +00:00
Devang Patel
3daf3625ab Do not use ETForest as well as DomiantorTree. DominatorTree is sufficient. 
llvm-svn: 37501
 2007-06-07 22:17:16 +00:00
Devang Patel
a466c96f77 Use DominatorTree instead of ETForest. 
This allows faster immediate domiantor walk.

llvm-svn: 37500
 2007-06-07 21:57:03 +00:00
Devang Patel
5678b94d16 Use DominatorTree instead of ETForest. 
llvm-svn: 37499
 2007-06-07 21:42:15 +00:00
Devang Patel
de2a20aefe Use DominatorTree instead of ETForest. 
llvm-svn: 37498
 2007-06-07 21:35:27 +00:00
Dale Johannesen
0f3c011fd5 Do not change the size of function arguments. PR 1489. 
llvm-svn: 37496
 2007-06-07 21:07:15 +00:00
Devang Patel
5c0808db4f Use DominatorTree instead of ETForest. 
llvm-svn: 37495
 2007-06-07 18:45:06 +00:00
Devang Patel
700d930e73 Use DominatorTree instead of ETForest. 
llvm-svn: 37494
 2007-06-07 18:40:55 +00:00
Devang Patel
babcd06827 Maintain ETNode as part of DomTreeNode. 
This adds redundancy for now.

llvm-svn: 37492
 2007-06-07 17:47:21 +00:00
Tanya Lattner
968030663f Formating fixes. 
llvm-svn: 37491
 2007-06-07 17:12:16 +00:00
Evan Cheng
4f73706838 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. 
llvm-svn: 37487
 2007-06-07 08:13:00 +00:00
Zhou Sheng
030400527a Add assert to check if the attributes ZExt/SExt, NoAlias are apply to the 
correct type of parameters.

llvm-svn: 37486
 2007-06-07 06:12:03 +00:00
Evan Cheng
d440a235a1 Lots of bug fixes. Now finally in a reasonable state. 
llvm-svn: 37485
 2007-06-07 02:12:15 +00:00
Evan Cheng
9f23724d53 Stupid cut-n-paste bug caused me soooo much grief. Why wasn't there a compilation warning? I blame it on the FE folks. 
llvm-svn: 37484
 2007-06-07 01:37:54 +00:00
Lauro Ramos Venancio
9907d0f8db Propagate alignment, section name and visibility when linking "appending 
global values".
Fix noinline linkage.

llvm-svn: 37482
 2007-06-06 22:01:12 +00:00
Tanya Lattner
9672d69be2 Instruct the inliner to obey the noinline attribute. Add test case. 
llvm-svn: 37481
 2007-06-06 21:59:26 +00:00
Chris Lattner
c5d0dc3554 simplify this code and fix PR1493, now that llvm-gcc3 is dead. 
llvm-svn: 37478
 2007-06-06 20:51:41 +00:00
Devang Patel
ace719b5fd Add new dominator tree node into dominator tree node map. 
llvm-svn: 37475
 2007-06-06 20:08:11 +00:00
Lauro Ramos Venancio
27fa43f343 Fix PR1499. 
llvm-svn: 37472
 2007-06-06 17:08:48 +00:00
Owen Anderson
b333dd064e Quick patch to fix the build, based on what it appears Evan meant to write. 
Evan, please check that this is in fact correct.

llvm-svn: 37471
 2007-06-06 16:22:00 +00:00
Duncan Sands
9bef60ea1a Fold the exception actions table harder: if two typeid lists start the 
same, only output one copy of the common part.

llvm-svn: 37470
 2007-06-06 15:37:31 +00:00
Nick Lewycky
2897eb89d0 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.

llvm-svn: 37469
 2007-06-06 11:26:20 +00:00
Evan Cheng
7b433a2954 Mark these instructions clobbersPred. They modify the condition code register. 
llvm-svn: 37468
 2007-06-06 10:17:05 +00:00
Evan Cheng
aeccfbef8b Lots of bug fixes. 
llvm-svn: 37467
 2007-06-06 10:16:17 +00:00
Evan Cheng
055d2fc508 Added clobbersPred. 
llvm-svn: 37466
 2007-06-06 10:15:28 +00:00
Duncan Sands
484bdb927b 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.

llvm-svn: 37463
 2007-06-06 10:05:18 +00:00