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re PR tree-optimization/59924 (uninit memory hog)

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PR tree-optimization/59924
	* gcc.dg/pr59924.c: New test.

From-SVN: r207446
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Jakub Jelinek 2014-02-04 01:46:42 +01:00 committed by Jakub Jelinek
parent c7793f06fb
commit 4b076d8a4d
2 changed files with 32 additions and 0 deletions
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5
gcc/testsuite/ChangeLog
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2014-02-04 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/59924
* gcc.dg/pr59924.c: New test.
2014-02-03 Jan Hubicka <hubicka@ucw.cz>
PR ipa/59831

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gcc/testsuite/gcc.dg/pr59924.c Normal file
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/* PR tree-optimization/59924 */
/* { dg-do compile } */
/* { dg-options "-O1 -Wall" } */
struct S { struct T *a; double b; struct S *c; };
struct T { struct S *d; };
extern void bar (double);
void
foo (struct S * x, int y, int z, int w)
{
int e;
struct S *f;
for (f = x->a->d; f; f = f->c)
{
if (5 < w)
{
e = -w;
z = w;
}
}
if (y != 0 || z != 0)
{
double g = x->b + (double) e * (double) y; /* { dg-warning "may be used uninitialized in this function" } */
bar (g * g);
}
}