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backport: i386.c (ia32_multipass_dfa_lookahead): Add case for Atom processor. 

Backport from mainline
        2012-08-23  Yuri Rumyantsev  <ysrumyan@gmail.com>

        * config/i386/i386.c (ia32_multipass_dfa_lookahead) : Add
        case for Atom processor.

From-SVN: r190837
This commit is contained in:
Kirill Yukhin 2012-08-31 16:23:33 +00:00 committed by Kirill Yukhin
parent 2def5eb4f2
commit f8f6fe7ddd
2 changed files with 9 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,11 @@
2012-08-31 Kirill Yukhin <kirill.yukhin@intel.com>
Backport from mainline
2012-08-23 Yuri Rumyantsev <ysrumyan@gmail.com>
* config/i386/i386.c (ia32_multipass_dfa_lookahead) : Add
case for Atom processor.
2012-08-28 Uros Bizjak <ubizjak@gmail.com>
Backport from mainline

1
gcc/config/i386/i386.c
View File

@ -23842,6 +23842,7 @@ ia32_multipass_dfa_lookahead (void)
case PROCESSOR_CORE2_64:
case PROCESSOR_COREI7_32:
case PROCESSOR_COREI7_64:
case PROCESSOR_ATOM:
/* Generally, we want haifa-sched:max_issue() to look ahead as far
as many instructions can be executed on a cycle, i.e.,
issue_rate. I wonder why tuning for many CPUs does not do this. */