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[IA64] Use dynamic prediction for RSE-clearing branches.

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This by itself is good for a 1-2 cycle speed up.  Effect is bigger
when combined with the later patches.

Signed-off-by: David Mosberger-Tang <davidm@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
David Mosberger-Tang 2005-04-27 21:13:33 -07:00 • committed by Tony Luck
parent 06ef660816
commit 9ec1a7ad43
1 changed files with 2 additions and 2 deletions
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4
arch/ia64/kernel/entry.S
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@ -1012,14 +1012,14 @@ rse_clear_invalid:
mov loc5=0 mov loc5=0
mov loc6=0 mov loc6=0
mov loc7=0 mov loc7=0
(pRecurse) br.call.sptk.few b0=rse_clear_invalid (pRecurse) br.call.dptk.few b0=rse_clear_invalid
;; ;;
mov loc8=0 mov loc8=0
mov loc9=0 mov loc9=0
cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret cmp.ne pReturn,p0=r0,in1 // if recursion count != 0, we need to do a br.ret
mov loc10=0 mov loc10=0
mov loc11=0 mov loc11=0
(pReturn) br.ret.sptk.many b0 (pReturn) br.ret.dptk.many b0
#endif /* !CONFIG_ITANIUM */ #endif /* !CONFIG_ITANIUM */
# undef pRecurse # undef pRecurse
# undef pReturn # undef pReturn