Viewing file:  uninit-pr95136.c (1.86 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/* PR middle-end/95136 - missing -Wuninitialized on an array access with
a variable offset
{ dg-do compile }
{ dg-options "-O -Wall" } */
#define NOIPA __attribute__ ((noipa))
NOIPA int a1_addr_varidx_plus_cst (int i)
{
int a[4]; // { dg-message "'a' declared here" }
int *p = &a[i + 1];
return *p; // { dg-warning "'a|a\\\[<unknown>]' is used uninitialized" }
}
NOIPA int a1_plus_addr_varidx_cst (int i)
{
int a[4]; // { dg-message "'a' declared here" }
int *p = &a[i] + 1;
return *p; // { dg-warning "'a' is used uninitialized" }
}
NOIPA int a1_plus_addr_cstidx_var (int i)
{
int a[4]; // { dg-message "'a' declared here" }
int *p = &a[1] + i;
return *p; // { dg-warning "'a' is used uninitialized" }
}
NOIPA int a1_plus_addr_varidx_var (int i, int j)
{
int a[4]; // { dg-message "'a' declared here" }
int *p = &a[i] + j;
return *p; // { dg-warning "'a' is used uninitialized" }
}
NOIPA int a2_addr_varidx_plus_cst (int i, int j)
{
int a[4][4]; // { dg-message "'a' declared here" }
int *p = &a[i + 1][j + 1];
return *p; // { dg-warning "'a|a\\\[<unknown>]\\\[<unknown>]' is used uninitialized" }
}
NOIPA int a2_plus_addr_varidx_cst (int i, int j)
{
int a[4][4]; // { dg-message "'a' declared here" }
int *p = &a[i][j] + 1;
return *p; // { dg-warning "'a' is used uninitialized" }
}
NOIPA int a2_plus_addr_cstidx_var (int i)
{
int a[4][4]; // { dg-message "'a' declared here" }
int *p = &a[1][1] + i;
return *p; // { dg-warning "'a' is used uninitialized" }
}
NOIPA int a2_plus_addr_varidx_var (int i, int j, int k)
{
int a[4][4]; // { dg-message "'a' declared here" }
int *p = &a[i][j] + k;
return *p; // { dg-warning "'a' is used uninitialized" }
}
|
