don't stack-allocate specialized vectors on non-conservtive control stacks

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

diff --git a/src/compiler/x86-64/macros.lisp b/src/compiler/x86-64/macros.lisp
index b7b0aa9..92f83f1 100644 (file)
--- a/src/compiler/x86-64/macros.lisp
+++ b/src/compiler/x86-64/macros.lisp
@@ -362,6 +362,7 @@
        (:generator 5
          (move rax old-value)
          (inst cmpxchg (make-ea :qword :base object :index index
+                                :scale (ash 1 (- word-shift n-fixnum-tag-bits))
                                 :disp (- (* ,offset n-word-bytes) ,lowtag))
                new-value :lock)
          (move value rax)))))
@@ -379,6 +380,7 @@
        (:result-types ,el-type)
        (:generator 3                    ; pw was 5
          (inst mov value (make-ea :qword :base object :index index
+                                  :scale (ash 1 (- word-shift n-fixnum-tag-bits))
                                   :disp (- (* ,offset n-word-bytes)
                                            ,lowtag)))))
      (define-vop (,(symbolicate name "-C"))
@@ -413,6 +415,7 @@
        (:result-types ,el-type)
        (:generator 3                    ; pw was 5
          (inst mov value (make-ea :qword :base object :index index
+                                  :scale (ash 1 (- word-shift n-fixnum-tag-bits))
                                   :disp (- (* (+ ,offset offset) n-word-bytes)
                                            ,lowtag)))))
      (define-vop (,(symbolicate name "-C"))
@@ -447,6 +450,7 @@
        (:result-types ,el-type)
        (:generator 4                    ; was 5
          (inst mov (make-ea :qword :base object :index index
+                            :scale (ash 1 (- word-shift n-fixnum-tag-bits))
                             :disp (- (* ,offset n-word-bytes) ,lowtag))
                value)
          (move result value)))
@@ -489,6 +493,7 @@
        (:result-types ,el-type)
        (:generator 4                    ; was 5
          (inst mov (make-ea :qword :base object :index index
+                            :scale (ash 1 (- word-shift n-fixnum-tag-bits))
                             :disp (- (* (+ ,offset offset) n-word-bytes) ,lowtag))
                value)
          (move result value)))
@@ -524,7 +529,7 @@ Useful for e.g. foreign calls where another thread may trigger
 collection."
   (if objects
       (let ((pins (make-gensym-list (length objects)))
-            (wpo (block-gensym "WPO")))
+            (wpo (gensym "WITH-PINNED-OBJECTS-THUNK")))
         ;; BODY is stuffed in a function to preserve the lexical
         ;; environment.
         `(flet ((,wpo () (progn ,@body)))