Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/attr-alloc_size-11.c @ 131:84e7813d76e9
gcc-8.2
| author | mir3636 |
|---|---|
| date | Thu, 25 Oct 2018 07:37:49 +0900 |
| parents | 04ced10e8804 |
| children | 1830386684a0 |
line wrap: on
line source
/* 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" } */