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/* Verify that -Walloc-size-greater-than doesn't cause false positives
for anti-ranges. Note that not all of the statements below result
in the argument being represented as an anti-range.
{ dg-do compile }
{ dg-options "-O2 -Walloc-size-larger-than=12 -ftrack-macro-expansion=0" } */
#define SCHAR_MAX __SCHAR_MAX__
#define SCHAR_MIN (-SCHAR_MAX - 1)
#define UCHAR_MAX (SCHAR_MAX * 2 + 1)
#define SHRT_MAX __SHRT_MAX__
#define SHRT_MIN (-SHRT_MAX - 1)
#define USHRT_MAX (SHRT_MAX * 2 + 1)
#define INT_MAX __INT_MAX__
#define INT_MIN (-INT_MAX - 1)
#define UINT_MAX (INT_MAX * 2U + 1)
#define LONG_MAX __LONG_MAX__
#define LONG_MIN (-LONG_MAX - 1)
#define ULONG_MAX (LONG_MAX * 2LU + 1)
#define PTRDIFF_MAX __PTRDIFF_MAX__
#define PTRDIFF_MIN (-PTRDIFF_MAX - 1)
#define SIZE_MAX __SIZE_MAX__
#define ALLOC_MAX 12
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef __SIZE_TYPE__ size_t;
#define CONCAT(a, b) a ## b
#define CAT(a, b) CONCAT (a, b)
/* Macro to generate a unique function to test the anti-range
~[MIN, MAX] for type T. */
#define TEST(T, min, max) \
void* CAT (test_anti_range_, __LINE__)(T n) \
{ \
extern void* CAT (alloc_anti_range_, __LINE__)(T) \
__attribute__ ((alloc_size (1))); \
if (min <= n && n <= max) \
n = min - 1; \
return CAT (alloc_anti_range_, __LINE__)(n); \
} typedef void dummy /* Require a semicolon. */
/* The following tests fail because of missing range information. The xfail
exclusions are PR79356. */
TEST (signed char, SCHAR_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for signed char" { xfail { ! { aarch64*-*-* arm*-*-* avr-*-* alpha*-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390*-*-* visium-*-* } } } } */
TEST (short, SHRT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" "missing range info for short" { xfail { ! { aarch64*-*-* arm*-*-* alpha*-*-* avr-*-* ia64-*-* mips*-*-* powerpc*-*-* sparc*-*-* s390x-*-* visium-*-* } } } } */
TEST (int, INT_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, -3, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, -2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, -1, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, 0, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, 1, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (int, 1, INT_MAX - 1); /* { dg-warning "argument 1 range \\\[\[0-9\]+, \[0-9\]+\\\] exceeds maximum object size 12" } */
/* The following two aren't necessarily anti-ranges. */
TEST (int, 1, INT_MAX); /* { dg-warning "argument 1 range \\\[-\[0-9\]+, 0\\\] is negative" } */
TEST (int, 0, INT_MAX); /* { dg-warning "argument 1 range \\\[-\[0-9\]+, -1\\\] is negative" } */
TEST (long, LONG_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (ptrdiff_t, PTRDIFF_MIN + 2, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (unsigned, 0, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (unsigned long, 0, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
TEST (size_t, 0, ALLOC_MAX); /* { dg-warning "argument 1 range \\\[13, \[0-9\]+\\\] exceeds maximum object size 12" } */
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