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New function: SB-EXT:SPIN-LOOP-HINT
[sbcl.git]
/
src
/
compiler
/
x86-64
/
system.lisp
diff --git
a/src/compiler/x86-64/system.lisp
b/src/compiler/x86-64/system.lisp
index
1edf735
..
2d710d9
100644
(file)
--- a/
src/compiler/x86-64/system.lisp
+++ b/
src/compiler/x86-64/system.lisp
@@
-394,3
+394,9
@@
number of CPU cycles elapsed as secondary value. EXPERIMENTAL."
(:policy :fast-safe)
(:translate %data-dependency-barrier)
(:generator 3))
+
+(define-vop (pause)
+ (:translate spin-loop-hint)
+ (:policy :fast-safe)
+ (:generator 0
+ (inst pause)))