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don't stack-allocate specialized vectors on non-conservtive control stacks
[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
11867f9
..
7cb54a4
100644
(file)
--- a/
src/compiler/x86-64/system.lisp
+++ b/
src/compiler/x86-64/system.lisp
@@
-39,14
+39,14
@@
(inst cmp al-tn fun-pointer-lowtag)
(inst jmp :e FUNCTION-PTR)
(inst cmp al-tn fun-pointer-lowtag)
(inst jmp :e FUNCTION-PTR)
- ;; Pick off structures and list pointers.
- (inst test al-tn 1)
- (inst jmp :ne DONE)
-
;; Pick off fixnums.
;; Pick off fixnums.
- (inst and al-tn fixnum-tag-mask)
+ (inst test al-tn fixnum-tag-mask)
(inst jmp :e DONE)
(inst jmp :e DONE)
+ ;; Pick off structures and list pointers.
+ (inst test al-tn 2)
+ (inst jmp :ne DONE)
+
;; must be an other immediate
(inst mov rax object)
(inst jmp DONE)
;; must be an other immediate
(inst mov rax object)
(inst jmp DONE)
@@
-381,18
+381,22
@@
number of CPU cycles elapsed as secondary value. EXPERIMENTAL."
(define-vop (%read-barrier)
(:policy :fast-safe)
(:translate %read-barrier)
(define-vop (%read-barrier)
(:policy :fast-safe)
(:translate %read-barrier)
- (:generator 3
- (inst lfence)))
+ (:generator 3))
#!+memory-barrier-vops
(define-vop (%write-barrier)
(:policy :fast-safe)
(:translate %write-barrier)
#!+memory-barrier-vops
(define-vop (%write-barrier)
(:policy :fast-safe)
(:translate %write-barrier)
- (:generator 3
- (inst sfence)))
+ (:generator 3))
#!+memory-barrier-vops
(define-vop (%data-dependency-barrier)
(:policy :fast-safe)
(:translate %data-dependency-barrier)
(:generator 3))
#!+memory-barrier-vops
(define-vop (%data-dependency-barrier)
(:policy :fast-safe)
(:translate %data-dependency-barrier)
(:generator 3))
+
+(define-vop (pause)
+ (:translate spin-loop-hint)
+ (:policy :fast-safe)
+ (:generator 0
+ (inst pause)))