diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/cpp/arith-3.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/cpp/arith-3.c | 447 |
1 files changed, 447 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/cpp/arith-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/arith-3.c new file mode 100644 index 000000000..2f94e9811 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/cpp/arith-3.c @@ -0,0 +1,447 @@ +/* Preprocessor arithmetic semantic tests. */ + +/* Copyright (C) 2002 Free Software Foundation, Inc. */ +/* Source: Neil Booth, 26 May 2002. */ + +/* The file tests overflow warnings for, and values of, preprocessor + arithmetic that are dependent on target precision. + + Please keep changes to arith-2.c and arith-3.c in sync. */ + +/* { dg-do preprocess } */ +/* { dg-options "-std=c99 -fshow-column" } */ + +#include <limits.h> + +#define APPEND2(NUM, SUFF) NUM ## SUFF +#define APPEND(NUM, SUFF) APPEND2(NUM, SUFF) + +#define TARGET_UTYPE_MAX ULLONG_MAX + +/* The tests in this file depend only on the macros defined in this + #if block. Note that it is no good calculating these values, as + the intent is to test both the preprocessor's number parser and + arithmetic. */ +#if TARGET_UTYPE_MAX == 65535ULL + +# define TARG_PRECISION 16 +# define MAX_INT 32767 +# define MAX_UINT 65535 + +# define TARG_MAX_HEX 0x7fff +# define TARG_MAX_OCT 077777 +# define TARG_MAX_PLUS_1 32768L +# define TARG_MAX_PLUS_1_U 32768UL +# define TARG_MAX_PLUS_1_HEX 0x8000 +# define TARG_MAX_PLUS_1_OCT 0100000 +# define UTARG_MAX_HEX 0xffff +# define UTARG_MAX_OCT 0177777 +# define UTARG_MAX_PLUS_1 65536L +# define UTARG_MAX_PLUS_1_HEX 0x10000 +# define UTARG_MAX_PLUS_1_OCT 0200000 + +# define TARG_LOWPART_PLUS_1 256L +# define TARG_LOWPART_PLUS_1_U 256UL + + /* Division and modulo; anything that uses the high half in both + dividend and divisor. */ +# define LONG_UDIVISION 61234UL / 260L +# define LONG_UDIVISION_ANSWER 235 +# define LONG_SDIVISION -15000L / 299L +# define LONG_SDIVISION_ANSWER -50 +# define LONG_UMODULO 61234UL % 260L +# define LONG_UMODULO_ANSWER 134 +# define LONG_SMODULO -15000L % 299L +# define LONG_SMODULO_ANSWER -50 + +#elif TARGET_UTYPE_MAX == 4294967295ULL + +# define TARG_PRECISION 32 +# define MAX_INT 2147483647 +# define MAX_UINT 4294967295 + +# define TARG_MAX_HEX 0x7fffffff +# define TARG_MAX_OCT 017777777777 +# define TARG_MAX_PLUS_1 2147483648L +# define TARG_MAX_PLUS_1_U 2147483648UL +# define TARG_MAX_PLUS_1_HEX 0x80000000 +# define TARG_MAX_PLUS_1_OCT 020000000000 +# define UTARG_MAX_HEX 0xffffffff +# define UTARG_MAX_OCT 037777777777 +# define UTARG_MAX_PLUS_1 4294967296L +# define UTARG_MAX_PLUS_1_HEX 0x100000000 +# define UTARG_MAX_PLUS_1_OCT 040000000000 + +# define TARG_LOWPART_PLUS_1 65536 +# define TARG_LOWPART_PLUS_1_U 65536UL + + /* Division and modulo; anything that uses the high half in both + dividend and divisor. */ +# define LONG_UDIVISION 268335456UL / 70000L +# define LONG_UDIVISION_ANSWER 3833 +# define LONG_SDIVISION -368335456L / 123456L +# define LONG_SDIVISION_ANSWER -2983 +# define LONG_UMODULO 268335456UL % 70000L +# define LONG_UMODULO_ANSWER 25456 +# define LONG_SMODULO -368335456L % 123456L +# define LONG_SMODULO_ANSWER -66208 + +#elif TARGET_UTYPE_MAX == 18446744073709551615ULL + +# define TARG_PRECISION 64 +# define MAX_INT 9223372036854775807 +# define MAX_UINT 18446744073709551615 + +# define TARG_MAX_HEX 0x7fffffffffffffff +# define TARG_MAX_OCT 0777777777777777777777 +# define TARG_MAX_PLUS_1 9223372036854775808L +# define TARG_MAX_PLUS_1_U 9223372036854775808UL +# define TARG_MAX_PLUS_1_HEX 0x8000000000000000 +# define TARG_MAX_PLUS_1_OCT 01000000000000000000000 +# define UTARG_MAX_HEX 0xffffffffffffffff +# define UTARG_MAX_OCT 01777777777777777777777 +# define UTARG_MAX_PLUS_1 18446744073709551616L +# define UTARG_MAX_PLUS_1_HEX 0x10000000000000000 +# define UTARG_MAX_PLUS_1_OCT 02000000000000000000000 + +# define TARG_LOWPART_PLUS_1 4294967296 +# define TARG_LOWPART_PLUS_1_U 4294967296U + + /* Division and modulo; anything that uses the high half in both + dividend and divisor. */ +# define LONG_UDIVISION 235184372088832UL / 17279869184L +# define LONG_UDIVISION_ANSWER 13610 +# define LONG_SDIVISION -234582345927345L / 12345678901L +# define LONG_SDIVISION_ANSWER -19001 +# define LONG_UMODULO 235184372088832UL % 17279869184L +# define LONG_UMODULO_ANSWER 5352494592L +# define LONG_SMODULO -234582345927345L % 12345678901L +# define LONG_SMODULO_ANSWER -2101129444L + +#else + +# error Please extend the macros here so that this file tests your target + +#endif + +/* Create more macros based on the above. */ +#define TARG_PART_BITS (TARG_PRECISION / 2) +#define TARG_MIN (-TARG_MAX - 1) +#define TARG_MAX APPEND (MAX_INT, L) +#define TARG_MAX_U APPEND (MAX_INT, UL) +#define UTARG_MAX APPEND (MAX_UINT, L) +#define UTARG_MAX_U APPEND (MAX_UINT, UL) + +/* And now the tests. */ + +#if TARG_MAX /* { dg-bogus "so large" } */ +#endif +#if TARG_MAX_PLUS_1_HEX /* { dg-bogus "so large" } */ +#endif +#if TARG_MAX_PLUS_1_OCT /* { dg-bogus "so large" } */ +#endif + +#if UTARG_MAX /* { dg-warning "so large" } */ +#endif +#if UTARG_MAX_PLUS_1 /* { dg-warning "too large" } */ +#endif +#if UTARG_MAX_PLUS_1_HEX /* { dg-warning "too large" } */ +#endif +#if UTARG_MAX_HEX /* { dg-bogus "too large" } */ +#endif +#if UTARG_MAX_PLUS_1_OCT /* { dg-warning "too large" } */ +#endif +#if UTARG_MAX_OCT /* { dg-bogus "too large" } */ +#endif + +#if TARG_MAX < 0 || TARG_MAX_PLUS_1 < 0 /* { dg-warning "so large" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if UTARG_MAX_HEX < 0 || TARG_MAX_HEX < 0 +# error /* { dg-bogus "error" } */ +#endif + +#if UTARG_MAX_OCT < 0 || TARG_MAX_OCT < 0 +# error /* { dg-bogus "error" } */ +#endif + +#if -1 != UTARG_MAX_U +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Test each operator correctly warns of overflow conditions, and + gives the right answer. */ + +/* Binary +. */ +#if TARG_MAX + 1 != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX + -2 != TARG_MAX /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX + -1 != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX_U + 1 != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX_U + -2 != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Binary -. */ +#if TARG_MAX - -1 != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX - 2 != TARG_MAX /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX - 1 != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX_U - -1 != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX_U - 2 != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + + +/* Binary *. */ +#if TARG_LOWPART_PLUS_1 * (TARG_LOWPART_PLUS_1 >> 1) != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_LOWPART_PLUS_1 >> 1) * TARG_LOWPART_PLUS_1 != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_LOWPART_PLUS_1 << 1) * (TARG_LOWPART_PLUS_1 + 1) != (TARG_LOWPART_PLUS_1 << 1) /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX * 1 != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_MAX >> 1) * 2 != TARG_MAX - 1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_LOWPART_PLUS_1_U + 61) * (TARG_LOWPART_PLUS_1 << 1) != 61 * (TARG_LOWPART_PLUS_1 << 1) /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_LOWPART_PLUS_1 >> 1) * TARG_LOWPART_PLUS_1_U != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if 1 * TARG_MIN != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Binary /. */ +#if TARG_MIN / -1 != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MIN / 1 != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -TARG_MAX_PLUS_1_U / -1 != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -5 / (2 - 2) /* { dg-error "13:division by zero" } */ +#endif + +#if LONG_UDIVISION != LONG_UDIVISION_ANSWER +# error /* { dg-bogus "error" } */ +#endif + +#if LONG_SDIVISION != LONG_SDIVISION_ANSWER +# error /* { dg-bogus "error" } */ +#endif + +/* Binary %. Cannot overflow. */ +#if -5 % (2 - 2) /* { dg-error "13:division by zero" } */ +#endif + +#if TARG_MIN % 1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if LONG_UMODULO != LONG_UMODULO_ANSWER +# error /* { dg-bogus "error" } */ +#endif + +#if LONG_SMODULO != LONG_SMODULO_ANSWER +# error /* { dg-bogus "error" } */ +#endif + +#if 234 % -1U != 234 +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MIN % -1U != TARG_MIN +# error /* { dg-bogus "error" } */ +#endif + +/* Binary << and Binary >>, the latter cannot overflow. */ +#if -1 >> 3 != -1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX >> 3 != TARG_MAX / 8 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if 0 << 256 != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if 1 << 256 != 0 /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if 1U << 256 != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX << 1 != -2 /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX_U << 1 != -2 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_LOWPART_PLUS_1 << TARG_PART_BITS != 0 /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_LOWPART_PLUS_1 << (TARG_PART_BITS - 1) != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_LOWPART_PLUS_1_U << (TARG_PART_BITS - 1) != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_LOWPART_PLUS_1 << (TARG_PART_BITS - 2) != (TARG_MAX_PLUS_1_U >> 1) /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +/* Test how the sign bit is handled. */ +#if (TARG_MIN << 1) != 0 /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_MAX_PLUS_1_U << 1) != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_MIN >> 1) != 3U << (TARG_PRECISION - 2) /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if (TARG_MAX_PLUS_1_U >> 1) != 1 << (TARG_PRECISION - 2) /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + +/* Unary -. It can overflow in just one case. */ +#if -TARG_MIN != TARG_MIN /* { dg-warning "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if - -TARG_MAX != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Unary +, ~, and !. They cannot overflow. */ +#if +TARG_MAX != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if !TARG_MAX + !TARG_MIN != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if ~TARG_MAX , ~TARG_MIN != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Bitwise &, ^, |. They cannot overflow. */ +#if (TARG_MAX & -1), (TARG_MIN & -1) != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX | -1, (TARG_MIN | -1) != -1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if TARG_MAX ^ -1, (TARG_MIN ^ -1) != TARG_MAX /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Comparison operators. They cannot overflow. */ +#if -1 <= TARG_MAX, (TARG_MIN <= 1) != 1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -1 >= TARG_MAX, (TARG_MIN >= 1) != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -1 < TARG_MAX, (TARG_MIN < 1) != 1 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -1 > TARG_MAX, (TARG_MIN > 1) != 0 /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + + + + +/* Comma and ? : operators. They cannot overflow. */ +#if -1, TARG_MAX, TARG_MIN != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif + +#if -1 ? TARG_MAX: TARG_MAX, 0 ? 1: TARG_MIN != TARG_MIN /* { dg-bogus "overflow" } */ +# error /* { dg-bogus "error" } */ +#endif |