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Author SHA1 Message Date
Puyan Lotfi 43e94b15ea Followup on Proposal to move MIR physical register namespace to '$' sigil. 
Discussed here:

http://lists.llvm.org/pipermail/llvm-dev/2018-January/120320.html

In preparation for adding support for named vregs we are changing the sigil for
physical registers in MIR to '$' from '%'. This will prevent name clashes of
named physical register with named vregs.

llvm-svn: 323922
 2018-01-31 22:04:26 +00:00
Jonas Paulsson 776a81a483 [SystemZ] Check for legality before doing LOAD AND TEST transformations. 
Since a load and test instruction treat its operands as signed, it can only
replace a logical compare for EQ/NE uses.

Review: Ulrich Weigand
https://bugs.llvm.org/show_bug.cgi?id=35662

llvm-svn: 322488
 2018-01-15 15:41:26 +00:00
Jonas Paulsson 1a76f3a2c2 Temporarily revert 
"[SystemZ]  Check for legality before doing LOAD AND TEST transformations."

, due to test failures.

llvm-svn: 322165
 2018-01-10 10:05:55 +00:00
Jonas Paulsson d9dde1ac56 [SystemZ] Check for legality before doing LOAD AND TEST transformations. 
Since a load and test instruction treat its operands as signed, it can only
replace a logical compare for EQ/NE uses.

Review: Ulrich Weigand
https://bugs.llvm.org/show_bug.cgi?id=35662

llvm-svn: 322161
 2018-01-10 09:18:17 +00:00