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ssa.c (ssa_uses): Remove definition.

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* ssa.c (ssa_uses): Remove definition.
        (apply_delayed_renames): Don't grow ssa_uses.
        (rename_block): Remove comment related to ssa_uses.
        (rename_registers): Do not initialize ssa_uses.
        (convert_from_ssa): Do not free ssa_uses.

From-SVN: r43460
This commit is contained in:
Jeffrey A Law 2001-06-19 14:18:49 +00:00 committed by Jeff Law
parent 57fae080ee
commit 10ab5c54a1
2 changed files with 6 additions and 7 deletions
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6
gcc/ChangeLog
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@ -1,5 +1,11 @@
Tue Jun 19 07:53:52 2001 Jeffrey A Law (law@cygnus.com)
* ssa.c (ssa_uses): Remove definition.
(apply_delayed_renames): Don't grow ssa_uses.
(rename_block): Remove comment related to ssa_uses.
(rename_registers): Do not initialize ssa_uses.
(convert_from_ssa): Do not free ssa_uses.
* ssa-dce.c: Renamed from dce.c.
* Makefile.in (OBJS): Replace dce.o with ssa-dce.o
(dependencies): Replace dce.c with ssa-dce.c and dce.o with

7
gcc/ssa.c
View File

@ -92,9 +92,6 @@ int in_ssa_form = 0;
/* Element I is the single instruction that sets register I. */
varray_type ssa_definition;
/* Element I is an INSN_LIST of instructions that use register I. */
varray_type ssa_uses;
/* Element I-PSEUDO is the normal register that originated the ssa
register in question. */
varray_type ssa_rename_from;
@ -828,7 +825,6 @@ apply_delayed_renames (c)
{
int new_limit = new_regno * 5 / 4;
VARRAY_GROW (ssa_definition, new_limit);
VARRAY_GROW (ssa_uses, new_limit);
}
VARRAY_RTX (ssa_definition, new_regno) = r->set_insn;
@ -1084,7 +1080,6 @@ rename_block (bb, idom)
abort();
*phi_alternative (phi, bb) = reg;
/* ??? Mark for a new ssa_uses entry. */
}
insn = NEXT_INSN (insn);
@ -1124,7 +1119,6 @@ rename_registers (nregs, idom)
int *idom;
{
VARRAY_RTX_INIT (ssa_definition, nregs * 3, "ssa_definition");
VARRAY_RTX_INIT (ssa_uses, nregs * 3, "ssa_uses");
ssa_rename_from_initialize ();
ssa_rename_to_pseudo = (rtx *) alloca (nregs * sizeof(rtx));
@ -2222,7 +2216,6 @@ convert_from_ssa()
/* Deallocate the data structures. */
VARRAY_FREE (ssa_definition);
VARRAY_FREE (ssa_uses);
ssa_rename_from_free ();
}