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Commit Graph

Author	SHA1	Message	Date
Richard Sandiford	9b05c709c6	[SystemZ] Use LOAD AND TEST to eliminate comparisons against zero git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187720 91177308-0d34-0410-b5e6-96231b3b80d8	2013-08-05 11:03:20 +00:00
Richard Sandiford	66fbb47818	[SystemZ] Split out comparison elimination into a separate pass Perhaps predictably, doing comparison elimination on the fly during SystemZLongBranch turned out to be a bad idea. The next patches make use of LOAD AND TEST and BRANCH ON COUNT, both of which require changes to earlier instructions. No functionality change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187718 91177308-0d34-0410-b5e6-96231b3b80d8	2013-08-05 10:58:53 +00:00

Author

SHA1

Message

Date

Richard Sandiford

9b05c709c6

[SystemZ] Use LOAD AND TEST to eliminate comparisons against zero

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187720 91177308-0d34-0410-b5e6-96231b3b80d8

2013-08-05 11:03:20 +00:00

Richard Sandiford

66fbb47818

[SystemZ] Split out comparison elimination into a separate pass

Perhaps predictably, doing comparison elimination on the fly during
SystemZLongBranch turned out to be a bad idea.  The next patches make
use of LOAD AND TEST and BRANCH ON COUNT, both of which require
changes to earlier instructions.

No functionality change intended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187718 91177308-0d34-0410-b5e6-96231b3b80d8

2013-08-05 10:58:53 +00:00

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52 Commits