Viewing file:  uninit-suppress_3.c (1.35 KB) -rw-r--r--
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/* PR middle-end/98871 - Cannot silence -Wmaybe-uninitialized at declaration
site
{ dg-do compile }
{ dg-options "-O1 -Wall" } */
struct A
{
int x;
};
// Verify that suppression works at every inlining level.
static int f0 (int *x)
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
return ++*x;
#pragma GCC diagnostic pop
}
static int f1 (int *p, int n)
{
struct A a;
for (int i = 0; i < n; ++i) {
if (p[i] > 1) {
a = (struct A){p[i]};
}
}
return f0 (&a.x);
}
int f2 (void)
{
int a[] = { 1, 2, 3, 4 };
return f1 (a, 4);
}
static int g0 (int *x)
{
return ++*x;
}
static int g1 (int *p, int n)
{
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
struct A a;
for (int i = 0; i < n; ++i) {
if (p[i] > 1) {
a = (struct A){p[i]};
}
}
return g0 (&a.x);
#pragma GCC diagnostic pop
}
int g2 (void)
{
int a[] = { 1, 2, 3, 4, 5 };
return g1 (a, 5);
}
static int h0 (int *x)
{
return ++*x;
}
static int h1 (int *p, int n)
{
struct A a;
for (int i = 0; i < n; ++i) {
if (p[i] > 1) {
a = (struct A){p[i]};
}
}
return h0 (&a.x);
}
int h2 (void)
{
int a[] = { 1, 2, 3, 4, 5, 6 };
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
return h1 (a, 6);
#pragma GCC diagnostic pop
}
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