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Comment out peepholes that generate buggy code 

From-SVN: r29858
This commit is contained in:
Michael Meissner 1999-10-07 19:25:54 +00:00 committed by Michael Meissner
parent c2d9fa7b17
commit 45df366316
2 changed files with 27 additions and 22 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Thu Oct 7 15:23:28 1999 Michael Meissner <meissner@cygnus.com>
* alpha.md (peephole2's): Comment out peephole2's that generate
buggy code.
Thu Oct 7 12:00:53 1999 Richard Henderson <rth@cygnus.com>
* genrecog.c (add_to_sequence): Disable mode check for

44
gcc/config/alpha/alpha.md
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@ -5407,25 +5407,25 @@
;; Optimize sign-extension of SImode loads. This shows up in the wake of
;; reload when converting fp->int.
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "=r")
(match_operand:SI 1 "memory_operand" "m"))
(set (match_operand:DI 2 "register_operand" "=r")
(sign_extend:DI (match_dup 0)))]
"rtx_equal_p (operands[0], operands[2])
|| reg_dead_p (insn, operands[0])"
[(set (match_dup 2)
(sign_extend:DI (match_dup 1)))]
"")
(define_peephole2
[(set (match_operand:SI 0 "register_operand" "=r")
(match_operand:SI 1 "hard_fp_register_operand" "f"))
(set (match_operand:DI 2 "register_operand" "=r")
(sign_extend:DI (match_dup 0)))]
"TARGET_FIX
&& (rtx_equal_p (operands[0], operands[2])
|| reg_dead_p (insn, operands[0]))"
[(set (match_dup 2)
(sign_extend:DI (match_dup 1)))]
"")
;(define_peephole2
; [(set (match_operand:SI 0 "register_operand" "=r")
; (match_operand:SI 1 "memory_operand" "m"))
; (set (match_operand:DI 2 "register_operand" "=r")
; (sign_extend:DI (match_dup 0)))]
; "rtx_equal_p (operands[0], operands[2])
; || reg_dead_p (insn, operands[0])"
; [(set (match_dup 2)
; (sign_extend:DI (match_dup 1)))]
; "")
;
;(define_peephole2
; [(set (match_operand:SI 0 "register_operand" "=r")
; (match_operand:SI 1 "hard_fp_register_operand" "f"))
; (set (match_operand:DI 2 "register_operand" "=r")
; (sign_extend:DI (match_dup 0)))]
; "TARGET_FIX
; && (rtx_equal_p (operands[0], operands[2])
; || reg_dead_p (insn, operands[0]))"
; [(set (match_dup 2)
; (sign_extend:DI (match_dup 1)))]
; "")