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1997 Commits

Author SHA1 Message Date
Nick Lewycky
4e96222245 Clean up comments, fix up some confusing code logic. 
Predsimplify fails llvm-gcc bootstrap.

llvm-svn: 40815
 2007-08-04 18:45:32 +00:00
Chandler Carruth
00e56b0e81 This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. 
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported.

llvm-svn: 40807
 2007-08-04 01:51:18 +00:00
Owen Anderson
891f5b4d28 Fix a subtle miscompilation. This allows 197.parser to be compiled correctly. 
llvm-svn: 40791
 2007-08-03 19:59:35 +00:00
Owen Anderson
d1063b7a3c Fix a subtle iterator invalidation bug in a recursive algorithm. 
llvm-svn: 40776
 2007-08-03 11:03:26 +00:00
Chris Lattner
cf6dd53ad8 Fix an accidental commit. 
llvm-svn: 40758
 2007-08-02 21:33:36 +00:00
Owen Anderson
414247c075 Fix 80 col. violations. 
llvm-svn: 40751
 2007-08-02 18:20:52 +00:00
Owen Anderson
ad74eeed3d Fix 80 col. violations. 
llvm-svn: 40750
 2007-08-02 18:16:06 +00:00
Owen Anderson
ae769ac824 Fix 80 col. violations. 
llvm-svn: 40749
 2007-08-02 18:11:11 +00:00
Owen Anderson
d617e4c963 Fix a bug that was causing several miscompilations on SPEC. 
llvm-svn: 40746
 2007-08-02 17:56:05 +00:00
Chris Lattner
5ca7348fc4 Replacing a cast with another one does not reduce the number of 
casts in the input.

llvm-svn: 40741
 2007-08-02 17:23:38 +00:00
Chris Lattner
7c6e8f735f Disable an xform that causes an infinite loop. This fixes PR1594 
llvm-svn: 40739
 2007-08-02 16:56:32 +00:00
Chris Lattner
25a8bfdedb wrap some long lines. Major offenders that are left include 
gvn, gvnpre, dse, and predsimplify.  To see these, use:

  make check-line-length

llvm-svn: 40738
 2007-08-02 16:53:43 +00:00
Devang Patel
937b07fb5e Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589, again

llvm-svn: 40737
 2007-08-02 15:25:57 +00:00
Chris Lattner
0111f62050 Enhance instcombine to be more aggressive about folding casts of 
operations of casts.  This implements InstCombine/zext-fold.ll

llvm-svn: 40726
 2007-08-02 06:11:14 +00:00
Chris Lattner
2cacb6cc56 Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll 
llvm-svn: 40720
 2007-08-02 04:47:05 +00:00
Devang Patel
f21f509c2c Undo previous check-in. 
llvm-svn: 40698
 2007-08-01 23:24:50 +00:00
Devang Patel
51c61e730a Update dominator info for the middle blocks created while spliting 
exit edge to preserve LCSSA.

Fix dominance frontier update during loop unswitch. This fixes PR 1589.

llvm-svn: 40695
 2007-08-01 22:23:50 +00:00
Owen Anderson
7028dfaf9d Make non-local memdep not be recursive, and fix a bug on 403.gcc that this exposed. 
llvm-svn: 40692
 2007-08-01 22:01:54 +00:00
Dan Gohman
7dd04fb91c More explicit keywords. 
llvm-svn: 40673
 2007-08-01 15:32:29 +00:00
Owen Anderson
58e64df595 Rename FastDSE to just DSE. 
llvm-svn: 40668
 2007-08-01 06:36:51 +00:00
Owen Anderson
45499c55e5 Move FastDSE in to DeadStoreElimination. 
llvm-svn: 40667
 2007-08-01 06:30:51 +00:00
Owen Anderson
48e3b68d57 Remove old DSE. 
llvm-svn: 40666
 2007-08-01 06:30:10 +00:00
David Greene
f06a395bb9 New CallInst interface to address GLIBCXX_DEBUG errors caused by 
indexing an empty std::vector.

Updates to all clients.

llvm-svn: 40660
 2007-08-01 03:43:44 +00:00
Owen Anderson
89022c1367 Don't let the memory allocator outsmart GVN. ;-) 
llvm-svn: 40655
 2007-07-31 23:27:13 +00:00
Owen Anderson
9c996b3212 Fix a failure I accidentally caused in my last commit by mishandling the 
removal of redundant phis.

llvm-svn: 40650
 2007-07-31 20:18:28 +00:00
Lauro Ramos Venancio
abf6c6d469 Fix a bug in GetKnownAlignment of packed structs. 
llvm-svn: 40649
 2007-07-31 20:13:21 +00:00
Owen Anderson
d178c05c62 Fix a misoptimization in aha. 
llvm-svn: 40642
 2007-07-31 17:43:14 +00:00
Dan Gohman
7702c23d4a Use SCEVExpander::InsertCastOfTo instead of calling new IntToPtrInst 
directly, because the insert point used by the SCEVExpander may vary
from what LSR originally computes.

llvm-svn: 40641
 2007-07-31 17:22:27 +00:00
Devang Patel
5a3594de20 Add note. 
llvm-svn: 40638
 2007-07-31 16:52:25 +00:00
Devang Patel
84e123116e Loop unswitch preserves dom info. 
Use simple analysis interface to preserve analysis info maintained by other loop passes.

llvm-svn: 40627
 2007-07-31 08:03:26 +00:00
Devang Patel
67b3734f28 Implement Simple Analysis interfaces - cloneBasicBlockAnalysis and deleteAnalysisValue. 
llvm-svn: 40626
 2007-07-31 08:01:41 +00:00
Devang Patel
069a8d9716 If loop can be unswitched again, then do it yourself. 
llvm-svn: 40609
 2007-07-30 23:07:10 +00:00
Owen Anderson
c7545280a2 Avoid potential iterator invalidation problems. 
llvm-svn: 40607
 2007-07-30 21:26:39 +00:00
Devang Patel
81c015b472 Remove dead code. 
llvm-svn: 40606
 2007-07-30 21:10:44 +00:00
Devang Patel
84144042b2 Loop Rotation pass preserves dominator tree and frontier. 
llvm-svn: 40603
 2007-07-30 20:22:53 +00:00
Devang Patel
2e8466c22a LICM preserves scalar evolution and dom frontier. 
llvm-svn: 40602
 2007-07-30 20:19:59 +00:00
Reid Spencer
eb6f2d338a Fix a typo/thinko. 
llvm-svn: 40599
 2007-07-30 19:53:57 +00:00
Owen Anderson
fff534d147 Use more caching when computing non-local dependence. This makes bzip2 not 
use up the entire 32-bit address space.

llvm-svn: 40596
 2007-07-30 17:29:24 +00:00
Owen Anderson
a8d0a6ee40 Fix a bug caused by indiscriminantly asking for the dominators of a predecessor. 
llvm-svn: 40595
 2007-07-30 16:57:08 +00:00
Chuck Rose III
4a3a018844 VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control. 
This commit fixes two things.  One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop.  I fixed these 
by renaming one of the two variables.  Additionally, I've made the Function*->ExFunc map in 
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown.  In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.

llvm-svn: 40558
 2007-07-27 18:26:35 +00:00
Devang Patel
4dea53597a Fix thinko. Update return status appropriately. 
llvm-svn: 40546
 2007-07-26 20:21:42 +00:00
Owen Anderson
f2b10d3de3 Fix a couple more bugs in the phi construction by pulling in code that does 
almost the same things from LCSSA.

llvm-svn: 40540
 2007-07-26 18:26:51 +00:00
Dan Gohman
fd392a7a51 Remove a bogus return statement, what appears to have been a pasto 
from Relation::contradicts in Relation::incorporate.

llvm-svn: 40531
 2007-07-26 15:29:35 +00:00
Owen Anderson
ed75133924 Fix what is _hopefully_ the last corner case for loops. 
llvm-svn: 40503
 2007-07-25 23:54:42 +00:00
Owen Anderson
1e53615073 My last commit was not correct for nested loops. Fix it, and add a testcase for it. 
llvm-svn: 40498
 2007-07-25 22:19:40 +00:00
Owen Anderson
ce9d73dbe7 Fix an infinite loop on 300.twolf. 
llvm-svn: 40497
 2007-07-25 22:03:06 +00:00
Owen Anderson
522f7a7608 Fix a bug that was causing GVN to crash on 252.eon. 
llvm-svn: 40494
 2007-07-25 21:13:41 +00:00
Owen Anderson
6a1a8d05b8 Add basic support for performing whole-function RLE. 
Note: This has not yet been thoroughly tested.  Use at your own risk.

llvm-svn: 40489
 2007-07-25 19:57:03 +00:00
Owen Anderson
eb9f1b612c Add a GVN pass, using the value numbering code I developed for GVNPRE and the 
load elimination code from RedundantLoadElimination.

llvm-svn: 40469
 2007-07-24 17:55:58 +00:00
Owen Anderson
5969a3cb91 Rename a lot of things to change FastDLE to RedundantLoadElimination. 
llvm-svn: 40457
 2007-07-24 00:17:04 +00:00