https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99600
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
It is too peephole2 rules that run on newly added instructions (each on the
ones added by the other one), in particular:
(define_peephole2
[(set (match_operand:SWI48 0 "register_operand")
(match_operand:SWI48 1 "address_no_seg_operand"))]
"ix86_hardreg_mov_ok (operands[0], operands[1])
&& peep2_regno_dead_p (0, FLAGS_REG)
&& ix86_avoid_lea_for_addr (peep2_next_insn (0), operands)"
[(const_int 0)]
and
(define_peephole2
[(match_scratch:W 5 "r")
(parallel [(set (match_operand 0 "register_operand")
(ashift (match_operand 1 "register_operand")
(match_operand 2 "const_int_operand")))
(clobber (reg:CC FLAGS_REG))])
(parallel [(set (match_operand 3 "register_operand")
(plus (match_dup 0)
(match_operand 4 "x86_64_general_operand")))
(clobber (reg:CC FLAGS_REG))])]
"IN_RANGE (INTVAL (operands[2]), 1, 3)
/* Validate MODE for lea. */
&& ((!TARGET_PARTIAL_REG_STALL
&& (GET_MODE (operands[0]) == QImode
|| GET_MODE (operands[0]) == HImode))
|| GET_MODE (operands[0]) == SImode
|| (TARGET_64BIT && GET_MODE (operands[0]) == DImode))
&& (rtx_equal_p (operands[0], operands[3])
|| peep2_reg_dead_p (2, operands[0]))
/* We reorder load and the shift. */
&& !reg_overlap_mentioned_p (operands[0], operands[4])"
[(set (match_dup 5) (match_dup 4))
(set (match_dup 0) (match_dup 1))]
