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Remove gratuitous changes from the alias analysis patches. 

From-SVN: r14771
This commit is contained in:
Jeff Law 1997-08-11 22:12:04 -06:00
parent 8c660648ca
commit 9f31cf0d42
2 changed files with 5 additions and 8 deletions
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3
gcc/ChangeLog
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@ -94,10 +94,7 @@ Mon Aug 11 10:04:49 1997 Jeffrey A Law (law@cygnus.com)
(alias.o): Add dependencies.
* alias.c: New file.
* sched.c: Remove alias analysis code. It lives in alias.c now.
(reg_last_uses_size): Declare.
(sched_analyze_2): Add new arguments to true_dependence.
(sched_analyze_insn): Use reg_last_uses_size instead of max_reg.
(schedule_block): Initialize reg_last_uses_size.
(schedule_insns): Always call init_alias_analysis.
* calls.c (expand_call): Note calls to malloc, calloc, and realloc;
mark return value from such functions as a pointer and keep track of

10
gcc/sched.c
View File

@ -146,7 +146,6 @@ static int *sched_reg_live_length;
such insn. Needed for new registers which may be introduced
by splitting insns. */
static rtx *reg_last_uses;
static int reg_last_uses_size;
static rtx *reg_last_sets;
static regset reg_pending_sets;
static int reg_pending_sets_all;
@ -1486,7 +1485,7 @@ sched_analyze_insn (x, insn, loop_notes)
{
register RTX_CODE code = GET_CODE (x);
rtx link;
int maxreg = reg_last_uses_size;
int maxreg = max_reg_num ();
int i;
if (code == SET || code == CLOBBER)
@ -1523,7 +1522,7 @@ sched_analyze_insn (x, insn, loop_notes)
if (loop_notes)
{
int max_reg = reg_last_uses_size;
int max_reg = max_reg_num ();
rtx link;
for (i = 0; i < max_reg; i++)
@ -1661,7 +1660,8 @@ sched_analyze (head, tail)
if (NEXT_INSN (insn) && GET_CODE (NEXT_INSN (insn)) == NOTE
&& NOTE_LINE_NUMBER (NEXT_INSN (insn)) == NOTE_INSN_SETJMP)
{
for (i = 0; i < reg_last_uses_size; i++)
int max_reg = max_reg_num ();
for (i = 0; i < max_reg; i++)
{
for (u = reg_last_uses[i]; u; u = XEXP (u, 1))
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
@ -2636,7 +2636,7 @@ schedule_block (b, file)
fprintf (file, ";;\t -- basic block number %d from %d to %d --\n",
b, INSN_UID (basic_block_head[b]), INSN_UID (basic_block_end[b]));
reg_last_uses_size = i = max_reg_num ();
i = max_reg_num ();
reg_last_uses = (rtx *) alloca (i * sizeof (rtx));
bzero ((char *) reg_last_uses, i * sizeof (rtx));
reg_last_sets = (rtx *) alloca (i * sizeof (rtx));