procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

arm.md (all peephole2 patterns): Use predicates that validate register classes as appropriate.

Browse source 
* arm.md (all peephole2 patterns): Use predicates that validate
register classes as appropriate.

From-SVN: r81860
This commit is contained in:
Richard Earnshaw 2004-05-14 21:45:59 +00:00 • committed by Richard Earnshaw
parent 1cd29ad235
commit 3053b100f9
2 changed files with 19 additions and 19 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2004-05-14 Richard Earnshaw <rearnsha@arm.com>
* arm.md (all peephole2 patterns): Use predicates that validate
register classes as appropriate.
2004-05-14 Steven Bosscher <stevenb@suse.de>
PR opt/14472

33
gcc/config/arm/arm.md
View file

@ -466,8 +466,8 @@
; addition.
(define_peephole2
[(match_scratch:SI 3 "r")
(set (match_operand:SI 0 "s_register_operand" "")
(plus:SI (match_operand:SI 1 "s_register_operand" "")
(set (match_operand:SI 0 "arm_general_register_operand" "")
(plus:SI (match_operand:SI 1 "arm_general_register_operand" "")
(match_operand:SI 2 "const_int_operand" "")))]
"TARGET_ARM &&
!(const_ok_for_arm (INTVAL (operands[2]))
@ -534,15 +534,14 @@
;; Reloading and elimination of the frame pointer can
;; sometimes cause this optimization to be missed.
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "")
[(set (match_operand:SI 0 "arm_general_register_operand" "")
(match_operand:SI 1 "const_int_operand" ""))
(set (match_dup 0)
(plus:SI (match_dup 0) (match_operand:SI 2 "register_operand" "")))]
(plus:SI (match_dup 0) (reg:SI SP_REGNUM)))]
"TARGET_THUMB
&& REGNO (operands[2]) == STACK_POINTER_REGNUM
&& (unsigned HOST_WIDE_INT) (INTVAL (operands[1])) < 1024
&& (INTVAL (operands[1]) & 3) == 0"
[(set (match_dup 0) (plus:SI (match_dup 2) (match_dup 1)))]
[(set (match_dup 0) (plus:SI (reg:SI SP_REGNUM) (match_dup 1)))]
""
)
@ -630,8 +629,8 @@
;; similarly for the beq variant using bcc.
;; This is a common looping idiom (while (n--))
(define_peephole2
[(set (match_operand:SI 0 "s_register_operand" "")
(plus:SI (match_operand:SI 1 "s_register_operand" "")
[(set (match_operand:SI 0 "arm_general_register_operand" "")
(plus:SI (match_operand:SI 1 "arm_general_register_operand" "")
(const_int -1)))
(set (match_operand 2 "cc_register" "")
(compare (match_dup 0) (const_int -1)))
@ -986,9 +985,9 @@
(define_peephole2
[(match_scratch:SI 3 "r")
(set (match_operand:SI 0 "s_register_operand" "")
(set (match_operand:SI 0 "arm_general_register_operand" "")
(minus:SI (match_operand:SI 1 "const_int_operand" "")
(match_operand:SI 2 "s_register_operand" "")))]
(match_operand:SI 2 "arm_general_register_operand" "")))]
"TARGET_ARM
&& !const_ok_for_arm (INTVAL (operands[1]))
&& const_ok_for_arm (~INTVAL (operands[1]))"
@ -2116,8 +2115,8 @@
(define_peephole2
[(match_scratch:SI 3 "r")
(set (match_operand:SI 0 "s_register_operand" "")
(ior:SI (match_operand:SI 1 "s_register_operand" "")
(set (match_operand:SI 0 "arm_general_register_operand" "")
(ior:SI (match_operand:SI 1 "arm_general_register_operand" "")
(match_operand:SI 2 "const_int_operand" "")))]
"TARGET_ARM
&& !const_ok_for_arm (INTVAL (operands[2]))
@ -9651,15 +9650,11 @@
; This pattern is never tried by combine, so do it as a peephole
(define_peephole2
[(set (match_operand:SI 0 "s_register_operand" "")
(match_operand:SI 1 "s_register_operand" ""))
[(set (match_operand:SI 0 "arm_general_register_operand" "")
(match_operand:SI 1 "arm_general_register_operand" ""))
(set (reg:CC CC_REGNUM)
(compare:CC (match_dup 1) (const_int 0)))]
"TARGET_ARM
&& (!(TARGET_HARD_FLOAT && TARGET_MAVERICK)
|| (!cirrus_fp_register (operands[0], SImode)
&& !cirrus_fp_register (operands[1], SImode)))
"
"TARGET_ARM"
[(parallel [(set (reg:CC CC_REGNUM) (compare:CC (match_dup 1) (const_int 0)))
(set (match_dup 0) (match_dup 1))])]
""