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re PR tree-optimization/92056 (ice in expr_object_size, at tree-object-si ze.c:675 with -O3)

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PR tree-optimization/92056
	* tree-ssa-strlen.c (determine_min_objsize): Call init_object_sizes
	before calling compute_builtin_object_size.

	* gcc.dg/tree-ssa/pr92056.c: New test.

From-SVN: r277134
This commit is contained in:
Jakub Jelinek 2019-10-18 00:21:12 +02:00 • committed by Jakub Jelinek
parent ac4c7868f1
commit 928a7c35ae
4 changed files with 49 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2019-10-18 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/92056
* tree-ssa-strlen.c (determine_min_objsize): Call init_object_sizes
before calling compute_builtin_object_size.
2019-10-17 Iain Sandoe <iain@sandoe.co.uk>
PR target/65342

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2019-10-18 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/92056
* gcc.dg/tree-ssa/pr92056.c: New test.
2019-10-17 Paolo Carlini <paolo.carlini@oracle.com>
* g++.old-deja/g++.other/decl9.C: Check locations too.

36
gcc/testsuite/gcc.dg/tree-ssa/pr92056.c Normal file
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@ -0,0 +1,36 @@
/* PR tree-optimization/92056 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-optimized" } */
/* { dg-final { scan-tree-dump-times "return 1;" 2 "optimized" } } */
/* { dg-final { scan-tree-dump-not "strcmp \\(" "optimized" } } */
void bar (int, char *);
int
foo (int x, char *y, const char *z)
{
char *a;
__builtin_sprintf (y, z);
if (x == 3)
a = __builtin_malloc (5);
else if (x == 7)
a = __builtin_malloc (6);
else
a = __builtin_malloc (7);
bar (x, a);
return __builtin_strcmp (a, "abcdefg") != 0;
}
int
baz (int x)
{
char *a;
if (x == 3)
a = __builtin_malloc (5);
else if (x == 7)
a = __builtin_malloc (6);
else
a = __builtin_malloc (7);
bar (x, a);
return __builtin_strcmp (a, "abcdefg") != 0;
}

2
gcc/tree-ssa-strlen.c
View file

@ -3462,6 +3462,8 @@ determine_min_objsize (tree dest)
{
unsigned HOST_WIDE_INT size = 0;
init_object_sizes ();
if (compute_builtin_object_size (dest, 2, &size))
return size;