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9 Commits

Author SHA1 Message Date
Lang Hames dab7b06de9 Improved tracking of value number kills. VN kills are now represented 
as an (index,bool) pair. The bool flag records whether the kill is a
PHI kill or not. This code will be used to enable splitting of live
intervals containing PHI-kills.

A slight change to live interval weights introduced an extra spill
into lsr-code-insertion (outside the critical sections). The test 
condition has been updated to reflect this.

llvm-svn: 75097
 2009-07-09 03:57:02 +00:00
Evan Cheng d93b5b672f Mark some pattern-less instructions as neverHasSideEffects. 
llvm-svn: 73252
 2009-06-12 20:46:18 +00:00
Evan Cheng f736bd9c79 Re-enable machine sinking pass now that the coalescer bugs and the AnalyzeBrnach bug are fixed. 
llvm-svn: 64126
 2009-02-09 08:45:39 +00:00
Bill Wendling 5469ec1072 Revert r63999. It was breaking self-hosting builds. 
llvm-svn: 64062
 2009-02-08 00:58:05 +00:00
Evan Cheng 9571621665 Enable machine sinking pass in non-fast mode. 
llvm-svn: 63999
 2009-02-07 01:57:46 +00:00
Evan Cheng 7fc1d98353 Fix for PR1831: if all defs of an interval are re-materializable, then it's a preferred spill candiate. 
llvm-svn: 44644
 2007-12-06 00:01:56 +00:00
Tanya Lattner 8f342f8ef3 Fix bug in regression tests that ignored stderr output in RUN lines. Updated tests and fixed broken run lines. 
XFAILed 3 arm regressions (will file bugs)

llvm-svn: 44389
 2007-11-28 04:57:00 +00:00
Reid Spencer 86f337eeda For PR1319: 
Fix test syntax per new rules.

llvm-svn: 36133
 2007-04-16 15:15:52 +00:00
Chris Lattner 03bf40e70e new lsr testcase 
llvm-svn: 35971
 2007-04-13 20:38:14 +00:00