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3 Commits

Author SHA1 Message Date
Dan Gohman
8c050fadf6 Add a CHECK line to check the position of the second divsd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 20:48:39 +00:00
Evan Cheng
0e6b590b91 Coalescer should not delete extract_subreg, insert_subreg, and subreg_to_reg of 
physical registers. This is especially critical for the later two since they
start the live interval of a super-register. e.g.
%DO<def> = INSERT_SUBREG %D0<undef>, %S0<kill>, 1
If this instruction is eliminated, the register scavenger will not be happy as
D0 is not defined previously.
This fixes PR5055.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82968 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-28 05:28:43 +00:00
Dan Gohman
a8fb336c2e Unbreak MachineLICM for instructions that reference RIP on x86-64 too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82825 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-25 23:58:45 +00:00