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(storehi): Use match_operand for operand 0.

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Use gen_lowpart to change mode of operand 0.
(storeinthi): Use match_operand for operand 0.
Change output code to reassign operand 0.
(truncsihi2, truncsiqi2, trunchiqi2): Remove these patterns.

From-SVN: r2057
This commit is contained in:
Torbjorn Granlund 1992-09-05 20:36:46 +00:00
parent b18a7b614f
commit 3a7a271921
1 changed files with 7 additions and 53 deletions
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60
gcc/config/arm/arm.md
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@ -469,48 +469,9 @@
"*
return (arm_output_asm_insn (\"fltd\\t%0, %1\", operands));
")
;; Truncation insns
(define_insn "truncsiqi2"
[(set (match_operand:QI 0 "general_operand" "=mr")
(truncate:QI (match_operand:SI 1 "register_operand" "r")))]
""
"*
if (GET_CODE (operands[0]) == MEM)
return (arm_output_asm_insn (\"strb\\t%1, %0\\t@ truncsiqi2\", operands));
else
return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ truncsiqi2\", operands));
")
(define_insn "trunchiqi2"
[(set (match_operand:QI 0 "general_operand" "=mr")
(truncate:QI (match_operand:HI 1 "register_operand" "r")))]
""
"*
if (GET_CODE(operands[0]) == MEM)
return (arm_output_asm_insn (\"strb\\t%1, %0\\t@ trunchiqi2\", operands));
else
return (arm_output_asm_insn (\"and\\t%0, %1, #255\\t@ trunchiqi2\", operands));
")
;; Mode is changed to SI below
(define_expand "truncsihi2"
[(set (match_operand:SI 0 "register_operand" "")
(ashift:SI (match_operand:HI 1 "register_operand" "")
(const_int 16)))
(set (match_dup 0)
(ashiftrt:SI (match_dup 0) (const_int 16)))]
""
"
if (GET_CODE (operands[1]) == SUBREG)
operands[1] = gen_rtx (SUBREG, SImode, SUBREG_REG (operands[1]),
SUBREG_WORD (operands[1]));
else
operands[1] = gen_rtx(SUBREG, SImode, operands[1], 0);
")
(define_insn "truncdfsf2"
[(set (match_operand:SF 0 "register_operand" "=f")
(float_truncate:SF
@ -751,7 +712,6 @@
;; Operand 2 is a temporary (SImode).
;; Operand 3 is a temporary (SImode).
;; Operand 4 is a temporary (SImode).
;; Operand 5 is a local temporary (SImode).
(define_expand "storehi"
[;; compute the address into a register
@ -759,7 +719,7 @@
(match_operand:SI 1 "address_operand" ""))
;; get the half word into a full word register
(set (match_operand:SI 3 "register_operand" "")
(match_dup 5))
(match_operand:HI 0 "register_operand" ""))
;; store the low byte
(set (mem:QI (match_dup 2))
(truncate:QI (match_dup 3)))
@ -771,12 +731,7 @@
(truncate:QI (match_dup 4)))]
""
"
if (GET_CODE(operands[0]) == SUBREG)
operands[5] = gen_rtx(SUBREG, SImode, SUBREG_REG(operands[0]),
SUBREG_WORD(operands[0]));
else
operands[5] = gen_rtx(SUBREG, SImode, operands[0], 0);
operands[0] = gen_lowpart (SImode, operands[0]);
")
;; Subroutine to store a half word integer constant into memory.
@ -786,7 +741,6 @@
;; Operand 3 is a temporary (QImode).
;; Operand 4 is a temporary (QImode).
;; Operand 5 is a local CONST_INT.
;; Operand 6 is a local CONST_INT.
(define_expand "storeinthi"
[;; compute the address into a register
@ -794,13 +748,13 @@
(match_operand:SI 1 "address_operand" ""))
;; load the low byte
(set (match_operand:QI 3 "register_operand" "")
(match_dup 5))
(match_operand:SI 0 "" ""))
;; store the low byte
(set (mem:QI (match_dup 2))
(match_dup 3))
;; load the high byte
(set (match_operand:QI 4 "register_operand" "")
(match_dup 6))
(match_dup 5))
;; store the high byte
(set (mem:QI (plus (match_dup 2) (const_int 1)))
(match_dup 4))]
@ -809,8 +763,8 @@
{
int value = INTVAL(operands[0]);
operands[5] = gen_rtx(CONST_INT, VOIDmode, value & 255);
operands[6] = gen_rtx(CONST_INT, VOIDmode,(value>>8) & 255);
operands[0] = gen_rtx(CONST_INT, VOIDmode, value & 255);
operands[5] = gen_rtx(CONST_INT, VOIDmode,(value>>8) & 255);
}
")