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/* { dg-require-effective-target alloca } */
#include <stdlib.h>
/* Tests warn on use of floating-point operands inside the calculation
of an allocation size.
The test cases here only test for warnings. The test cases inside
allocation-size-X.c should be plently enough to test for false positives. */
void test_1 (float f)
{
int *ptr = malloc (sizeof (int) * f); /* { dg-line test_1 } */
free (ptr);
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_1 } */
/* { dg-message "operand 'f' is of type 'float'" "note" { target *-*-* } test_1 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_1 } */
}
void test_2 (int n)
{
int *ptr = malloc (n * 3.1); /* { dg-line test_2 } */
free (ptr);
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_2 } */
/* { dg-message "operand '\(\\d|e|f|\\.|\\+|\)+' is of type 'double'" "note" { target *-*-* } test_2 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_2 } */
}
void *alloc_me (size_t size)
{
return malloc (size); /* { dg-line test_3 } */
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_3 } */
/* { dg-message "operand 'f' is of type 'float'" "note" { target *-*-* } test_3 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_3 } */
}
void test_3 (float f)
{
void *ptr = alloc_me (f); /* { dg-message "calling 'alloc_me' from 'test_3'" } */
free (ptr);
}
void test_4 (int n)
{
int *ptr = calloc(1.7 * n, sizeof (int)); /* { dg-line test_4 } */
free (ptr);
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_4 } */
/* { dg-message "operand '\(\\d|e|f|\\.|\\+|\)+' is of type 'double'" "note" { target *-*-* } test_4 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_4 } */
}
int test_5 (float f)
{
int *ptr = __builtin_alloca (sizeof (int) * f); /* { dg-line test_5 } */
*ptr = 4;
return *ptr;
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_5 } */
/* { dg-message "operand 'f' is of type 'float'" "note" { target *-*-* } test_5 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_5 } */
}
int test_6 (float f)
{
int *ptr = __builtin_alloca (1.7f * f * 2.3f); /* { dg-line test_6 } */
*ptr = 4;
return *ptr;
/* { dg-warning "use of floating-point arithmetic here might yield unexpected results" "warning" { target *-*-* } test_6 } */
/* { dg-message "operand 'f' is of type 'float'" "note" { target *-*-* } test_6 } */
/* { dg-message "only use operands of an integer type inside the size argument" "note" { target *-*-* } test_6 } */
}
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