diff options
Diffstat (limited to 'contrib/gcc/loop.h')
| -rw-r--r-- | contrib/gcc/loop.h | 71 |
1 files changed, 37 insertions, 34 deletions
diff --git a/contrib/gcc/loop.h b/contrib/gcc/loop.h index 1dffddd..f2f870c 100644 --- a/contrib/gcc/loop.h +++ b/contrib/gcc/loop.h @@ -1,5 +1,5 @@ -/* Loop optimization definitions for GNU C-Compiler - Copyright (C) 1991, 1995, 1998, 1999, 2000, 2001, 2002 +/* Loop optimization definitions for GCC + Copyright (C) 1991, 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of GCC. @@ -49,9 +49,14 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA (INSN_UID (INSN) < max_uid_for_loop ? uid_luid[INSN_UID (INSN)] \ : (abort (), -1)) -#define REGNO_FIRST_LUID(REGNO) uid_luid[REGNO_FIRST_UID (REGNO)] -#define REGNO_LAST_LUID(REGNO) uid_luid[REGNO_LAST_UID (REGNO)] - +#define REGNO_FIRST_LUID(REGNO) \ + (REGNO_FIRST_UID (REGNO) < max_uid_for_loop \ + ? uid_luid[REGNO_FIRST_UID (REGNO)] \ + : 0) +#define REGNO_LAST_LUID(REGNO) \ + (REGNO_LAST_UID (REGNO) < max_uid_for_loop \ + ? uid_luid[REGNO_LAST_UID (REGNO)] \ + : INT_MAX) /* A "basic induction variable" or biv is a pseudo reg that is set (within this loop) only by incrementing or decrementing it. */ @@ -396,34 +401,32 @@ extern FILE *loop_dump_stream; /* Forward declarations for non-static functions declared in loop.c and unroll.c. */ -int loop_invariant_p PARAMS ((const struct loop *, rtx)); -rtx get_condition_for_loop PARAMS ((const struct loop *, rtx)); -void loop_iv_add_mult_hoist PARAMS ((const struct loop *, rtx, rtx, rtx, rtx)); -void loop_iv_add_mult_sink PARAMS ((const struct loop *, rtx, rtx, rtx, rtx)); -void loop_iv_add_mult_emit_before PARAMS ((const struct loop *, rtx, - rtx, rtx, rtx, - basic_block, rtx)); -rtx express_from PARAMS ((struct induction *, struct induction *)); -rtx extend_value_for_giv PARAMS ((struct induction *, rtx)); - -void unroll_loop PARAMS ((struct loop *, int, int)); -rtx biv_total_increment PARAMS ((const struct iv_class *)); -unsigned HOST_WIDE_INT loop_iterations PARAMS ((struct loop *)); -int precondition_loop_p PARAMS ((const struct loop *, - rtx *, rtx *, rtx *, - enum machine_mode *mode)); -rtx final_biv_value PARAMS ((const struct loop *, struct iv_class *)); -rtx final_giv_value PARAMS ((const struct loop *, struct induction *)); -void emit_unrolled_add PARAMS ((rtx, rtx, rtx)); -int back_branch_in_range_p PARAMS ((const struct loop *, rtx)); - -int loop_insn_first_p PARAMS ((rtx, rtx)); -typedef rtx (*loop_insn_callback) PARAMS ((struct loop *, rtx, int, int)); -void for_each_insn_in_loop PARAMS ((struct loop *, loop_insn_callback)); -rtx loop_insn_emit_before PARAMS((const struct loop *, basic_block, - rtx, rtx)); -rtx loop_insn_sink PARAMS((const struct loop *, rtx)); -rtx loop_insn_hoist PARAMS((const struct loop *, rtx)); +extern int loop_invariant_p (const struct loop *, rtx); +extern rtx get_condition_for_loop (const struct loop *, rtx); +extern void loop_iv_add_mult_hoist (const struct loop *, rtx, rtx, rtx, rtx); +extern void loop_iv_add_mult_sink (const struct loop *, rtx, rtx, rtx, rtx); +extern void loop_iv_add_mult_emit_before (const struct loop *, rtx, rtx, + rtx, rtx, basic_block, rtx); +extern rtx express_from (struct induction *, struct induction *); +extern rtx extend_value_for_giv (struct induction *, rtx); + +extern void unroll_loop (struct loop *, int, int); +extern rtx biv_total_increment (const struct iv_class *); +extern unsigned HOST_WIDE_INT loop_iterations (struct loop *); +extern int precondition_loop_p (const struct loop *, rtx *, rtx *, rtx *, + enum machine_mode *mode); +extern rtx final_biv_value (const struct loop *, struct iv_class *); +extern rtx final_giv_value (const struct loop *, struct induction *); +extern void emit_unrolled_add (rtx, rtx, rtx); +extern int back_branch_in_range_p (const struct loop *, rtx); + +extern int loop_insn_first_p (rtx, rtx); +typedef rtx (*loop_insn_callback) (struct loop *, rtx, int, int); +extern void for_each_insn_in_loop (struct loop *, loop_insn_callback); +extern rtx loop_insn_emit_before (const struct loop *, basic_block, rtx, rtx); +extern rtx loop_insn_sink (const struct loop *, rtx); +extern rtx loop_insn_hoist (const struct loop *, rtx); /* Forward declarations for non-static functions declared in doloop.c. */ -int doloop_optimize PARAMS ((const struct loop *)); +extern rtx doloop_condition_get (rtx); +extern int doloop_optimize (const struct loop *); |
