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| author | mmitchel <mmitchel@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-10-27 17:34:59 +0000 |
|---|---|---|
| committer | mmitchel <mmitchel@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-10-27 17:34:59 +0000 |
| commit | 7098ef4a5bd453aa1929d497797c0818374af7b0 (patch) | |
| tree | 7e473bb947bcec6b461f84269de876371eb9d053 /gcc/alias.c | |
| parent | bf6acc7eb6f75196de605580368c25b484a651b5 (diff) | |
| download | gcc-7098ef4a5bd453aa1929d497797c0818374af7b0.tar.gz | |
* alias.c (init_alias_analysis): Allocate reg_known_value and
reg_known_equiv_p on the heap. Likewise for new_reg_base_value
and reg_seen.
(end_alias_analysis): Free reg_known_value and reg_known_equiv_p.
* cse.c (cse_main): Call end_alias_analysis.
* haifa-sched.c (schedule_insns): Likewise.
* local-alloc. (update_equiv_regs): Likewise.
* reload1.c (reload_cse_regs): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30217 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/alias.c')
| -rw-r--r-- | gcc/alias.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/gcc/alias.c b/gcc/alias.c index 59578d7b875..cdc001993d5 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -1538,15 +1538,12 @@ init_alias_analysis () reg_known_value_size = maxreg; - reg_known_value - = (rtx *) oballoc ((maxreg - FIRST_PSEUDO_REGISTER) * sizeof (rtx)) + reg_known_value + = (rtx *) xcalloc ((maxreg - FIRST_PSEUDO_REGISTER), sizeof (rtx)) + - FIRST_PSEUDO_REGISTER; + reg_known_equiv_p + = (char*) xcalloc ((maxreg - FIRST_PSEUDO_REGISTER), sizeof (char)) - FIRST_PSEUDO_REGISTER; - reg_known_equiv_p = - oballoc (maxreg - FIRST_PSEUDO_REGISTER) - FIRST_PSEUDO_REGISTER; - bzero ((char *) (reg_known_value + FIRST_PSEUDO_REGISTER), - (maxreg-FIRST_PSEUDO_REGISTER) * sizeof (rtx)); - bzero (reg_known_equiv_p + FIRST_PSEUDO_REGISTER, - (maxreg - FIRST_PSEUDO_REGISTER) * sizeof (char)); /* Overallocate reg_base_value to allow some growth during loop optimization. Loop unrolling can create a large number of @@ -1556,8 +1553,8 @@ init_alias_analysis () if (ggc_p) ggc_add_rtx_root (reg_base_value, reg_base_value_size); - new_reg_base_value = (rtx *)alloca (reg_base_value_size * sizeof (rtx)); - reg_seen = (char *)alloca (reg_base_value_size); + new_reg_base_value = (rtx *) xmalloc (reg_base_value_size * sizeof (rtx)); + reg_seen = (char *) xmalloc (reg_base_value_size); if (! reload_completed && flag_unroll_loops) { /* ??? Why are we realloc'ing if we're just going to zero it? */ @@ -1730,15 +1727,21 @@ init_alias_analysis () } while (changed && pass < MAX_ALIAS_LOOP_PASSES); + /* Clean up. */ + free (new_reg_base_value); new_reg_base_value = 0; + free (reg_seen); reg_seen = 0; } void end_alias_analysis () { + free (reg_known_value + FIRST_PSEUDO_REGISTER); reg_known_value = 0; reg_known_value_size = 0; + free (reg_known_equiv_p + FIRST_PSEUDO_REGISTER); + reg_known_equiv_p = 0; if (reg_base_value) { if (ggc_p) |