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re PR target/15551 (-mtune=pentium4 -O2 with sjlj EH breaks stack probe worker on windows32 targets)

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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.

From-SVN: r83458
This commit is contained in:
Kelley Cook 2004-06-21 22:52:04 +00:00 • committed by R. Kelley Cook
parent f648d1e451
commit 8e2cd6dda7
2 changed files with 19 additions and 7 deletions
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9
gcc/ChangeLog
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@ -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

17
gcc/config/i386/i386.md
View file

@ -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))])]