OpenE2K
/
gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Add prototypes for static functions. 

(jump_optimize, delete_insn): Use GET_RTX_CLASS to test for insns.
(mark_jump_label): Delete dead code.
(delete_computation, redirect_tablejump): No longer static.

From-SVN: r6753
This commit is contained in:
Richard Kenner 1994-03-12 06:42:18 -05:00
parent ef903ecaa9
commit 8cd2aff2d1
1 changed files with 16 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
gcc/jump.c
View File

@ -103,19 +103,16 @@ int can_reach_end;
static int cross_jump_death_matters = 0;
static int duplicate_loop_exit_test ();
void redirect_tablejump ();
static int delete_labelref_insn ();
static void mark_jump_label ();
void delete_jump ();
void delete_computation ();
static void delete_from_jump_chain ();
static int tension_vector_labels ();
static void find_cross_jump ();
static void do_cross_jump ();
static int jump_back_p ();
extern rtx gen_jump ();
static int duplicate_loop_exit_test PROTO((rtx));
static void find_cross_jump PROTO((rtx, rtx, int, rtx *, rtx *));
static void do_cross_jump PROTO((rtx, rtx, rtx));
static int jump_back_p PROTO((rtx, rtx));
static int tension_vector_labels PROTO((rtx, int));
static void mark_jump_label PROTO((rtx, rtx, int));
static void delete_computation PROTO((rtx));
static void delete_from_jump_chain PROTO((rtx));
static int delete_labelref_insn PROTO((rtx, rtx, int));
static void redirect_tablejump PROTO((rtx, rtx));
/* Delete no-op jumps and optimize jumps to jumps
and jumps around jumps.
@ -210,8 +207,7 @@ jump_optimize (f, cross_jump, noop_moves, after_regscan)
also make a chain of all returns. */
for (insn = f; insn; insn = NEXT_INSN (insn))
if ((GET_CODE (insn) == JUMP_INSN || GET_CODE (insn) == INSN
|| GET_CODE (insn) == CALL_INSN)
if (GET_RTX_CLASS (GET_CODE (insn)) == 'i'
&& ! INSN_DELETED_P (insn))
{
mark_jump_label (PATTERN (insn), insn, cross_jump);
@ -3081,13 +3077,8 @@ mark_jump_label (x, insn, cross_jump)
|| ! (GET_CODE (next) == JUMP_INSN
&& (GET_CODE (PATTERN (next)) == ADDR_VEC
|| GET_CODE (PATTERN (next)) == ADDR_DIFF_VEC)))
{
REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_LABEL, label,
REG_NOTES (insn));
/* Record in the note whether label is nonlocal. */
LABEL_REF_NONLOCAL_P (REG_NOTES (insn))
= LABEL_REF_NONLOCAL_P (x);
}
REG_NOTES (insn) = gen_rtx (EXPR_LIST, REG_LABEL, label,
REG_NOTES (insn));
}
}
return;
@ -3147,7 +3138,7 @@ delete_jump (insn)
On machines with CC0, if CC0 is used in this insn, we may be able to
delete the insn that set it. */
void
static void
delete_computation (insn)
rtx insn;
{
@ -3361,8 +3352,7 @@ delete_insn (insn)
{
register RTX_CODE code;
while (next != 0
&& ((code = GET_CODE (next)) == INSN
|| code == JUMP_INSN || code == CALL_INSN
&& (GET_RTX_CLASS (code = GET_CODE (next)) == 'i'
|| code == NOTE
|| (code == CODE_LABEL && INSN_DELETED_P (next))))
{
@ -3677,7 +3667,7 @@ redirect_exp (loc, olabel, nlabel, insn)
before the jump references that label and delete it and logical successors
too. */
void
static void
redirect_tablejump (jump, nlabel)
rtx jump, nlabel;
{