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5 Commits

Author SHA1 Message Date
Hal Finkel
8bf75ed41c Enable tail merging on PPC. 
Tail merging had been disabled on PPC because it would disturb bundling decisions
made during pre-RA scheduling on the 970 cores. Now, however, all bundling decisions
are made during post-RA scheduling, and tail merging is generally beneficial (the
average test-suite speedup is insignificantly positive).

Largest test-suite speedups:
MultiSource/Benchmarks/mediabench/gsm/toast/toast - 30%
MultiSource/Benchmarks/BitBench/uuencode/uuencode - 23%
SingleSource/Benchmarks/Shootout-C++/ary - 21%
SingleSource/Benchmarks/Stanford/Queens - 17%

Largest slowdowns:
MultiSource/Benchmarks/MiBench/security-sha/security-sha - 24%
MultiSource/Benchmarks/McCat/03-testtrie/testtrie - 22%
MultiSource/Applications/JM/ldecod/ldecod - 14%
MultiSource/Benchmarks/mediabench/g721/g721encode/encode - 9%

This is improved by using full (instead of just critical) anti-dependency breaking,
but doing so still causes miscompiles and so cannot yet be enabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158259 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-09 03:14:50 +00:00
Chris Lattner
7a1b9bdd2b Remove support for using "foo" as symbols instead of %"foo". This is ancient 
syntax and has been long obsolete.  As usual, updating the tests is the nasty
part of this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133242 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-06-17 06:36:20 +00:00
Dan Gohman
fce288fc91 Eliminate more uses of llvm-as and llvm-dis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-09 00:09:15 +00:00
Dan Gohman
28beeeac4d Convert tests using "| wc -l | grep ..." to use the count script. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-08-15 13:36:28 +00:00
Dale Johannesen
7e07b30e80 new testcases for -enable-tail-merge default handling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37287 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 17:19:23 +00:00