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cse.c (cse_main): Free dominance info.

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gcc/

	* cse.c (cse_main): Free dominance info.
	(rest_of_handle_cse): Don't free dominance info.
	(rest_of_handle_cse2): Likewise.
	(rest_of_handle_cse_after_global_opts): Likewise.

gcc/testsuite/

	* gcc.dg/pr71148.c: New test.

From-SVN: r236460
This commit is contained in:
Ilya Enkovich 2016-05-19 13:50:22 +00:00 • committed by Ilya Enkovich
parent 4f83064e3b
commit afb7243286
4 changed files with 63 additions and 9 deletions
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8
gcc/ChangeLog
View file

@ -1,3 +1,11 @@
2016-05-19 Ilya Enkovich <ilya.enkovich@intel.com>
PR rtl-optimization/71148
* cse.c (cse_main): Free dominance info.
(rest_of_handle_cse): Don't free dominance info.
(rest_of_handle_cse2): Likewise.
(rest_of_handle_cse_after_global_opts): Likewise.
2016-05-19 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/71056

13
gcc/cse.c
View file

@ -6669,6 +6669,10 @@ cse_main (rtx_insn *f ATTRIBUTE_UNUSED, int nregs)
int *rc_order = XNEWVEC (int, last_basic_block_for_fn (cfun));
int i, n_blocks;
/* CSE doesn't use dominane info but can invalidate it in different ways.
For simplicity free dominance info here. */
free_dominance_info (CDI_DOMINATORS);
df_set_flags (DF_LR_RUN_DCE);
df_note_add_problem ();
df_analyze ();
@ -7568,9 +7572,6 @@ rest_of_handle_cse (void)
else if (tem == 1 || optimize > 1)
cse_cfg_altered |= cleanup_cfg (0);
if (cse_cfg_altered && dom_info_available_p (CDI_DOMINATORS))
free_dominance_info (CDI_DOMINATORS);
return 0;
}
@ -7640,9 +7641,6 @@ rest_of_handle_cse2 (void)
else if (tem == 1)
cse_cfg_altered |= cleanup_cfg (0);
if (cse_cfg_altered && dom_info_available_p (CDI_DOMINATORS))
free_dominance_info (CDI_DOMINATORS);
cse_not_expected = 1;
return 0;
}
@ -7717,9 +7715,6 @@ rest_of_handle_cse_after_global_opts (void)
else if (tem == 1)
cse_cfg_altered |= cleanup_cfg (0);
if (cse_cfg_altered && dom_info_available_p (CDI_DOMINATORS))
free_dominance_info (CDI_DOMINATORS);
flag_cse_follow_jumps = save_cfj;
return 0;
}

5
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2016-05-19 Ilya Enkovich <ilya.enkovich@intel.com>
PR rtl-optimization/71148
* gcc.dg/pr71148.c: New test.
2016-05-19 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR target/71056

46
gcc/testsuite/gcc.dg/pr71148.c Normal file
View file

@ -0,0 +1,46 @@
/* PR rtl-optimization/71148 */
/* { dg-do compile } */
/* { dg-options "-O3 -funroll-loops" } */
int rh, ok, kq, fu;
void
js (int cs)
{
rh = fu;
if (fu != 0)
{
cs /= 3;
if (cs <= 0)
{
int z9;
for (z9 = 0; z9 < 2; ++z9)
{
z9 += cs;
ok += z9;
fu += ok;
}
}
}
}
void
vy (int s3)
{
int yo, g2 = 0;
sd:
js (g2);
for (yo = 0; yo < 2; ++yo)
{
if (fu != 0)
goto sd;
kq += (s3 != (g2 ? s3 : 0));
for (s3 = 0; s3 < 72; ++s3)
g2 *= (~0 - 1);
g2 -= yo;
}
for (fu = 0; fu < 18; ++fu)
for (yo = 0; yo < 17; ++yo)
if (g2 < 0)
goto sd;
}