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5 Commits

Author SHA1 Message Date
Bob Wilson 0f52d0c074 Delete dead PHI machine instructions. These can be created due to type 
legalization even when the IR-level optimizer has removed dead phis, such
as when the high half of an i64 value is unused on a 32-bit target.
I had to adjust a few test cases that had dead phis.
This is a partial fix for Radar 7627077.

llvm-svn: 95816
 2010-02-10 22:58:57 +00:00
Dan Gohman 40503396da Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Evan Cheng 107b06c4b9 Teach LSR sink to sink the immediate portion of the common expression back into uses if they fit in address modes of all the uses. 
llvm-svn: 65215
 2009-02-21 02:06:47 +00:00
Dale Johannesen bcfa7c1255 Make test work on non-x86 hosts. 
llvm-svn: 42671
 2007-10-06 01:22:39 +00:00
Evan Cheng 5ee9cf6bca Test case for 3-address conversion. 
llvm-svn: 42664
 2007-10-05 23:33:09 +00:00