Micro-optimize machine code for some register tests on x86[-64].

[sbcl.git] / src / compiler / x86-64 / parms.lisp

diff --git a/src/compiler/x86-64/parms.lisp b/src/compiler/x86-64/parms.lisp
index eed4cfe..1dbc383 100644 (file)
--- a/src/compiler/x86-64/parms.lisp
+++ b/src/compiler/x86-64/parms.lisp
@@ -35,9 +35,11 @@
 ;;; addressable object
 (def!constant n-byte-bits 8)
 
-;;; The size in bytes of the GENCGC pages. Should be a multiple of the
-;;; architecture code size.
-(def!constant gencgc-page-size 4096)
+;;; The minimum immediate offset in a memory-referencing instruction.
+(def!constant minimum-immediate-offset (- (expt 2 31)))
+
+;;; The maximum immediate offset in a memory-referencing instruction.
+(def!constant maximum-immediate-offset (1- (expt 2 31)))
 
 (def!constant float-sign-shift 31)
 
@@ -101,47 +103,42 @@
 ;;; would be possible, but probably not worth the time and code bloat
 ;;; it would cause. -- JES, 2005-12-11
 
-(def!constant read-only-space-start     #x20000000)
-(def!constant read-only-space-end       #x27ff0000)
+(progn
+  (def!constant read-only-space-start     #x20000000)
+  (def!constant read-only-space-end       #x200ff000)
+
+  (def!constant static-space-start        #x20100000)
+  (def!constant static-space-end          #x201ff000)
 
-(def!constant static-space-start        #x40000000)
-(def!constant static-space-end          #x47fff000)
+  (def!constant dynamic-space-start       #x1000000000)
+  #!-openbsd
+  (def!constant dynamic-space-end         (!configure-dynamic-space-end))
+  #!+openbsd
+  ;; This is lower on OpenBSD to allow SBCL to run under the default
+  ;; 512M data size limit.
+  (def!constant dynamic-space-end         (!configure-dynamic-space-end #x101bcf0000))
 
-(def!constant dynamic-space-start   #x1000000000)
-(def!constant dynamic-space-end     #x11ffff0000)
+  (def!constant linkage-table-space-start #x20200000)
+  (def!constant linkage-table-space-end   #x202ff000)
 
-(def!constant linkage-table-space-start #x60000000)
-(def!constant linkage-table-space-end   #x63fff000)
+  (def!constant linkage-table-entry-size 16))
 
-(def!constant linkage-table-entry-size 16)
 \f
 ;;;; other miscellaneous constants
 
-(defenum (:suffix -trap :start 8)
-  halt
-  pending-interrupt
-  error
-  cerror
-  breakpoint
-  fun-end-breakpoint
-  single-step-breakpoint)
-;;; FIXME: It'd be nice to replace all the DEFENUMs with something like
-;;;   (WITH-DEF-ENUM (:START 8)
-;;;     (DEF-ENUM HALT-TRAP)
-;;;     (DEF-ENUM PENDING-INTERRUPT-TRAP)
-;;;     ..)
-;;; for the benefit of anyone doing a lexical search for definitions
-;;; of these symbols.
-
-(defenum (:prefix object-not- :suffix -trap :start 16)
-  list
-  instance)
-
-(defenum (:prefix trace-table-)
-  normal
-  call-site
-  fun-prologue
-  fun-epilogue)
+(defenum (:start 8)
+  halt-trap
+  pending-interrupt-trap
+  error-trap
+  cerror-trap
+  breakpoint-trap
+  fun-end-breakpoint-trap
+  single-step-around-trap
+  single-step-before-trap)
+
+(defenum (:start 24)
+  object-not-list-trap
+  object-not-instance-trap)
 \f
 ;;;; static symbols
 
@@ -166,13 +163,7 @@
    '(*alien-stack*
 
      ;; interrupt handling
-     *pseudo-atomic-atomic*
-     *pseudo-atomic-interrupted*
-
-     #!+sb-thread *stop-for-gc-pending*
-
-     #!+sb-thread *free-tls-index*
-     #!+sb-thread *tls-index-lock*
+     *pseudo-atomic-bits*
 
      *allocation-pointer*
      *binding-stack-pointer*