2004-06-21 Kelley Cook <kcook@gcc.gnu.org>

	PR target/15551
	* config/i386/i386.md: Change UNSPEC_STACK_PROBE to UNSPECV_STACK_PROBE.
	(allocate_stack_worker): Make unspec_volatile.
	(allocate_stack_worker_rex64):  Likewise.
	(allocate_stack_worker_postreload):  Likewise.
	(allocate_stack_worker_rex64_postreload):  Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@83458 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index db93898..3a87ac9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2004-06-21  Kelley Cook  <kcook@gcc.gnu.org>
+
+       PR target/15551
+       * config/i386/i386.md: Change UNSPEC_STACK_PROBE to UNSPECV_STACK_PROBE.
+       (allocate_stack_worker): Make unspec_volatile.
+       (allocate_stack_worker_rex64):  Likewise.
+       (allocate_stack_worker_postreload):  Likewise.
+       (allocate_stack_worker_rex64_postreload):  Likewise.
+
 2004-06-21  Daniel Berlin  <dberlin@dberlin.org>
     
        Fix PR optimization/15982

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 54d327e..f7270a8 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -1,3 +1,4 @@
+
 ;; GCC machine description for IA-32 and x86-64.
 ;; Copyright (C) 1988, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
 ;; 2001, 2002, 2003, 2004
@@ -63,7 +64,6 @@
    (UNSPEC_INDNTPOFF           8)
 
    ; Prologue support
-   (UNSPEC_STACK_PROBE         10)
    (UNSPEC_STACK_ALLOC         11)
    (UNSPEC_SET_GOT             12)
    (UNSPEC_SSE_PROLOGUE_SAVE   13)
@@ -143,6 +143,7 @@
 
 (define_constants
   [(UNSPECV_BLOCKAGE           0)
+   (UNSPECV_STACK_PROBE                10)
    (UNSPECV_EMMS               31)
    (UNSPECV_LDMXCSR            37)
    (UNSPECV_STMXCSR            40)
@@ -18310,7 +18311,8 @@
 })
 
 (define_insn "allocate_stack_worker_1"
-  [(unspec:SI [(match_operand:SI 0 "register_operand" "a")] UNSPEC_STACK_PROBE)
+  [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "a")]
+    UNSPECV_STACK_PROBE)
    (set (reg:SI SP_REG) (minus:SI (reg:SI SP_REG) (match_dup 0)))
    (clobber (match_scratch:SI 1 "=0"))
    (clobber (reg:CC FLAGS_REG))]
@@ -18320,8 +18322,8 @@
    (set_attr "length" "5")])
 
 (define_expand "allocate_stack_worker_postreload"
-  [(parallel [(unspec:SI [(match_operand:SI 0 "register_operand" "a")]
-                          UNSPEC_STACK_PROBE)
+  [(parallel [(unspec_volatile:SI [(match_operand:SI 0 "register_operand" "a")]
+                                   UNSPECV_STACK_PROBE)
              (set (reg:SI SP_REG) (minus:SI (reg:SI SP_REG) (match_dup 0)))
              (clobber (match_dup 0))
              (clobber (reg:CC FLAGS_REG))])]
@@ -18329,7 +18331,8 @@
   "")
 
 (define_insn "allocate_stack_worker_rex64"
-  [(unspec:DI [(match_operand:DI 0 "register_operand" "a")] UNSPEC_STACK_PROBE)
+  [(unspec_volatile:DI [(match_operand:DI 0 "register_operand" "a")]
+    UNSPECV_STACK_PROBE)
    (set (reg:DI SP_REG) (minus:DI (reg:DI SP_REG) (match_dup 0)))
    (clobber (match_scratch:DI 1 "=0"))
    (clobber (reg:CC FLAGS_REG))]
@@ -18339,8 +18342,8 @@
    (set_attr "length" "5")])
 
 (define_expand "allocate_stack_worker_rex64_postreload"
-  [(parallel [(unspec:DI [(match_operand:DI 0 "register_operand" "a")]
-                          UNSPEC_STACK_PROBE)
+  [(parallel [(unspec_volatile:DI [(match_operand:DI 0 "register_operand" "a")]
+                                   UNSPECV_STACK_PROBE)
              (set (reg:DI SP_REG) (minus:DI (reg:DI SP_REG) (match_dup 0)))
              (clobber (match_dup 0))
              (clobber (reg:CC FLAGS_REG))])]