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| author | denisc <denisc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-09-03 11:33:33 +0000 |
|---|---|---|
| committer | denisc <denisc@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-09-03 11:33:33 +0000 |
| commit | 7b07866301557ebe30935a5979cdea9d553d7cc3 (patch) | |
| tree | befee9209e0ced2f8b5ad57d845e03475c65aed7 /gcc/config | |
| parent | 1424ee99d6d28a27c238fec0b404558f98e45580 (diff) | |
| download | gcc-7b07866301557ebe30935a5979cdea9d553d7cc3.tar.gz | |
* config/avr/avr.md ("*tablejump_lib"): New pattern.
(call_value_insn): Right length claculation.
(call_insn): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@36119 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config')
| -rw-r--r-- | gcc/config/avr/avr.md | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/gcc/config/avr/avr.md b/gcc/config/avr/avr.md index 59f9aa72eff..ba456ff0706 100644 --- a/gcc/config/avr/avr.md +++ b/gcc/config/avr/avr.md @@ -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 |