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avr.md ("*tablejump_lib"): New pattern.

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* config/avr/avr.md ("*tablejump_lib"): New pattern.
	(call_value_insn): Right length claculation.
	(call_insn): Likewise.

From-SVN: r36119
This commit is contained in:
Denis Chertykov 2000-09-03 11:33:33 +00:00 committed by Denis Chertykov
parent 2c9f84822a
commit 150f410081
2 changed files with 38 additions and 9 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Sun Sep 3 13:10:56 2000 Denis Chertykov <denisc@overta.ru>
* config/avr/avr.md ("*tablejump_lib"): New pattern.
(call_value_insn): Right length claculation.
(call_insn): Likewise.
2000-09-02 Marek Michalkiewicz <marekm@linux.org.pl>
* config/avr/avr-protos.h, config/avr/avr.c (unique_section,

41
gcc/config/avr/avr.md
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@ -1616,15 +1616,13 @@
""
"")
;; TODO: insn length for AVR_ENHANCED
(define_insn "call_insn"
[(call (mem:HI (match_operand:HI 0 "nonmemory_operand" "!z,*r,i"))
(match_operand:HI 1 "general_operand" "X,X,X"))]
;; We don't need in saving Z register because r30,r31 is a call used registers
;; Operand 1 not used on the AVR.
"(register_operand (operands[0], HImode) || CONSTANT_P (operands[0]))"
"*
{
"*{
if (which_alternative==0)
return \"icall\";
else if (which_alternative==1)
@ -1645,14 +1643,16 @@
(set (attr "length")
(cond [(eq (symbol_ref "which_alternative") (const_int 0))
(const_int 1)
(eq (symbol_ref "which_alternative") (const_int 1))
(eq (symbol_ref "(which_alternative == 1 && AVR_ENHANCED)")
(const_int 1))
(const_int 2)
(eq (symbol_ref "(which_alternative == 1 && !AVR_ENHANCED)")
(const_int 1))
(const_int 3)
(eq (symbol_ref "!AVR_MEGA")
(const_int 0))
(eq (symbol_ref "!AVR_MEGA") (const_int 0))
(const_int 2)]
(const_int 1)))])
;; TODO: insn length for AVR_ENHANCED
(define_insn "call_value_insn"
[(set (match_operand 0 "register_operand" "=r,r,r")
(call (mem:HI (match_operand:HI 1 "nonmemory_operand" "!z,*r,i"))
@ -1682,7 +1682,11 @@
(set (attr "length")
(cond [(eq (symbol_ref "which_alternative") (const_int 0))
(const_int 1)
(eq (symbol_ref "which_alternative") (const_int 1))
(eq (symbol_ref "(which_alternative == 1 && AVR_ENHANCED)")
(const_int 1))
(const_int 2)
(eq (symbol_ref "(which_alternative == 1 && !AVR_ENHANCED)")
(const_int 1))
(const_int 3)
(eq (symbol_ref "!AVR_MEGA")
(const_int 0))
@ -1713,7 +1717,26 @@
"optimize"
"")
;; TODO: jump to __tabjejump__ in libgcc
;; Not a prologue, but similar idea - move the common piece of code to libgcc.
(define_insn "*tablejump_lib"
[(set (pc) (mem:HI (plus:HI (match_operand:HI 0 "register_operand" "=&z")
(label_ref (match_operand 2 "" "")))))
(use (label_ref (match_operand 1 "" "")))]
"TARGET_CALL_PROLOGUES"
"*{
output_asm_insn (AS2 (subi,r30,lo8(-(%2))) CR_TAB
AS2 (sbci,r31,hi8(-(%2))), operands);
return (AVR_MEGA
? AS1 (jmp,__tablejump__)
: AS1 (rjmp,__tablejump__));
}"
[(set_attr "cc" "clobber")
(set (attr "length")
(if_then_else (eq (symbol_ref "AVR_MEGA")
(const_int 0))
(const_int 3)
(const_int 4)))])
(define_insn "*tablejump_enh"
[(set (pc) (mem:HI