Commit Graph

217 Commits

Author SHA1 Message Date
Owen Anderson 00dba4f734 Re-apply the patch to improve the optimizations of memcpy's, with several
bugs fixed.  This now passes PPC bootstrap.

llvm-svn: 47026
2008-02-12 21:15:18 +00:00
Bill Wendling c676a0329c Temporarily reverting:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.

llvm-svn: 46822
2008-02-06 20:03:07 +00:00
Owen Anderson 1a78ae76e4 Make this test more aggressive, to cover recent improvements.
llvm-svn: 46695
2008-02-04 04:55:24 +00:00
Owen Anderson c4a7c41869 Allow GVN to hack on memcpy's, making them open to further optimization.
llvm-svn: 46693
2008-02-04 02:59:58 +00:00
Dan Gohman f9dd170e36 Convert tests using "| wc -l | grep ..." to use the count script.
llvm-svn: 41097
2007-08-15 13:36:28 +00:00
Owen Anderson 2464f4f048 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
Owen Anderson d58fa6b09f Fix a misoptimization in aha.
llvm-svn: 40642
2007-07-31 17:43:14 +00:00
Owen Anderson d66e285b2e Fix a bug caused by indiscriminantly asking for the dominators of a predecessor.
llvm-svn: 40595
2007-07-30 16:57:08 +00:00
Owen Anderson 0f692f27a3 Fix a bug introduced in my last commit.
llvm-svn: 40542
2007-07-26 18:57:04 +00:00
Owen Anderson dbf23ccaa0 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
Owen Anderson 3b8cc30a61 Fix what is _hopefully_ the last corner case for loops.
llvm-svn: 40503
2007-07-25 23:54:42 +00:00
Owen Anderson 8707412593 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 3c67004d47 Fix an infinite loop on 300.twolf.
llvm-svn: 40497
2007-07-25 22:03:06 +00:00
Owen Anderson 9b796348bd Fix a bug in non-local memdep that was causing an infinite loop on 175.vpr.
llvm-svn: 40495
2007-07-25 21:26:36 +00:00
Owen Anderson 7bf26ee444 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 5e5599b7ce 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 ab6ec2eac2 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