Skip to content

R
riscv-gcc-1
Commit 2d204901 by Richard Kenner
Options

(zero_extendqi[hs]i2+3): Ensure operating on REG. 

From-SVN: r13637
parent 4d2c432d
Showing with 15 additions and 5 deletions
gcc/config/i386/i386.md
;; GCC machine description for Intel X86.
;; Copyright (C) 1988, 1994, 1995, 1996 Free Software Foundation, Inc.
;; Copyright (C) 1988, 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
;; Mostly by William Schelter.
;; This file is part of GNU CC.
......@@ -1898,13 +1898,18 @@
(define_split
[(set (match_operand:HI 0 "register_operand" "")
(zero_extend:HI (match_operand:QI 1 "register_operand" "")))]
"reload_completed && TARGET_ZERO_EXTEND_WITH_AND && REGNO (operands[0]) != REGNO (operands[1])"
"reload_completed && TARGET_ZERO_EXTEND_WITH_AND"
[(set (match_dup 0)
(match_dup 2))
(set (match_dup 0)
(and:HI (match_dup 0)
(const_int 255)))]
"operands[2] = gen_rtx (REG, HImode, REGNO (operands[1]));")
"if (GET_CODE (operands[1]) == SUBREG && SUBREG_WORD (operands[1]) == 0)
operands[1] = SUBREG_REG (operands[1]);
if (GET_CODE (operands[0]) != REG || GET_CODE (operands[1]) != REG
|| REGNO (operands[0]) == REGNO (operands[1]))
FAIL;
operands[2] = gen_rtx (REG, HImode, REGNO (operands[1]));")
(define_insn "zero_extendqisi2"
[(set (match_operand:SI 0 "register_operand" "=q,&q,?r")
......@@ -1984,13 +1989,18 @@
(define_split
[(set (match_operand:SI 0 "register_operand" "")
(zero_extend:SI (match_operand:QI 1 "register_operand" "")))]
"reload_completed && TARGET_ZERO_EXTEND_WITH_AND && REGNO (operands[0]) != REGNO (operands[1])"
"reload_completed && TARGET_ZERO_EXTEND_WITH_AND"
[(set (match_dup 0)
(match_dup 2))
(set (match_dup 0)
(and:SI (match_dup 0)
(const_int 255)))]
"operands[2] = gen_rtx (REG, SImode, REGNO (operands[1]));")
"if (GET_CODE (operands[1]) == SUBREG && SUBREG_WORD (operands[1]) == 0)
operands[1] = SUBREG_REG (operands[1]);
if (GET_CODE (operands[1]) != REG
|| REGNO (operands[0]) == REGNO (operands[1]))
FAIL;
operands[2] = gen_rtx (REG, SImode, REGNO (operands[1]));")
(define_insn "zero_extendsidi2"
[(set (match_operand:DI 0 "nonimmediate_operand" "=r,?r,?m")
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment