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re PR other/88007 (ICE in gt_ggc_m_S, at ggc-page.c:1474) 

PR other/88007
	* c-common.c (parse_optimize_options): Allocate option string from
	opts_obstack rather than as GC memory.  Move the allocation after
	warning for invalid option.

	* gcc.dg/pr88007.c: New test.

From-SVN: r266141
This commit is contained in:
Jakub Jelinek 2018-11-14 13:38:20 +01:00 committed by Jakub Jelinek
parent 5bfba2b58d
commit 8cca0163fb
4 changed files with 28 additions and 2 deletions
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7
gcc/c-family/ChangeLog
View File

@ -1,3 +1,10 @@
2018-11-14 Jakub Jelinek <jakub@redhat.com>
PR other/88007
* c-common.c (parse_optimize_options): Allocate option string from
opts_obstack rather than as GC memory. Move the allocation after
warning for invalid option.
2018-11-13 David Malcolm <dmalcolm@redhat.com>
* c-common.c (c_get_substring_location): Update for renaming of

5
gcc/c-family/c-common.c
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@ -5523,8 +5523,6 @@ parse_optimize_options (tree args, bool attr_p)
next_p = NULL;
}
r = q = (char *) ggc_alloc_atomic (len2 + 3);
/* If the user supplied -Oxxx or -fxxx, only allow -Oxxx or -fxxx
options. */
if (*p == '-' && p[1] != 'O' && p[1] != 'f')
@ -5539,6 +5537,9 @@ parse_optimize_options (tree args, bool attr_p)
continue;
}
/* Can't use GC memory here, see PR88007. */
r = q = XOBNEWVEC (&opts_obstack, char, len2 + 3);
if (*p != '-')
{
*r++ = '-';

3
gcc/testsuite/ChangeLog
View File

@ -1,5 +1,8 @@
2018-11-14 Jakub Jelinek <jakub@redhat.com>
PR other/88007
* gcc.dg/pr88007.c: New test.
PR rtl-optimization/87817
* gcc.target/i386/bmi2-bzhi-3.c (main): Add a couple of new tests.

15
gcc/testsuite/gcc.dg/pr88007.c Normal file
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@ -0,0 +1,15 @@
/* PR other/88007 */
/* { dg-do compile } */
/* { dg-options "--param ggc-min-expand=3 --param ggc-min-heapsize=1024" } */
/* { dg-skip-if "no code alignment > 2" { "pdp11-*-*" } } */
void bar (void);
__attribute__((optimize ("align-loops=16", "align-jumps=16",
"align-labels=16", "align-functions=16")))
void
foo (void)
{
for (int i = 0; i < 1024; ++i)
bar ();
}