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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.target/] [i386/] [excess-precision-1.c] - Rev 848
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/* Excess precision tests. Test that excess precision is carried through various operations. */ /* { dg-do run } */ /* { dg-options "-O2 -mfpmath=387 -fexcess-precision=standard" } */ #include <float.h> extern void abort (void); extern void exit (int); volatile float f1 = 1.0f; volatile float f2 = 0x1.0p-30f; volatile float f3 = 0x1.0p-60f; volatile double d1 = 1.0; volatile double d2 = 0x1.0p-30; volatile double d3 = 0x1.0p-60; volatile float fadd1 = 1.0f + 0x1.0p-30f; volatile double dadd2 = 1.0 + 0x1.0p-30 + 0x1.0p-60; volatile long double ldadd1 = 1.0l + 0x1.0p-30l; volatile long double ldadd2 = 1.0l + 0x1.0p-30l + 0x1.0p-60l; void test_add (void) { if (f1 + f2 != ldadd1) abort (); if (f1 + f2 + f3 != ldadd2) abort (); if (d1 + d2 != ldadd1) abort (); if (d1 + d2 + d3 != ldadd2) abort (); if (f1 + d2 + f3 != ldadd2) abort (); if (f1 + f2 == fadd1) abort (); if (f1 + f2 <= fadd1) abort (); if (f1 + f2 < fadd1) abort (); if (d1 + d2 + d3 == dadd2) abort (); if (!(d1 + d2 + d3 > dadd2)) abort (); if (!(d1 + d2 + d3 >= dadd2)) abort (); } volatile long double ldsub1 = 1.0l - 0x1.0p-30l; volatile long double ldsub2 = 1.0l - 0x1.0p-30l - 0x1.0p-60l; void test_sub (void) { if (f1 - f2 != ldsub1) abort (); if (f1 - f2 - f3 != ldsub2) abort (); if (d1 - d2 != ldsub1) abort (); if (d1 - d2 - d3 != ldsub2) abort (); if (f1 - d2 - f3 != ldsub2) abort (); if (+(f1 - d2 - f3) != ldsub2) abort (); if (-(f1 - d2 - f3) != -ldsub2) abort (); } volatile float flt_min = FLT_MIN; volatile double dbl_min = DBL_MIN; volatile long double flt_min2 = (long double)FLT_MIN * (long double)FLT_MIN; volatile long double dbl_min3 = (long double)DBL_MIN * (long double)DBL_MIN * (long double)DBL_MIN; void test_mul (void) { if (flt_min * flt_min != flt_min2) abort (); if (flt_min * flt_min == 0) abort (); if (flt_min * flt_min == 0) abort (); if (!(flt_min * flt_min)) abort (); if (dbl_min * dbl_min * dbl_min != dbl_min3) abort (); if ((long double)(dbl_min * dbl_min * dbl_min) != dbl_min3) abort (); if ((0, dbl_min * dbl_min * dbl_min) != dbl_min3) abort (); if (dbl_min * dbl_min * dbl_min == 0) abort (); if ((flt_min * flt_min ? dbl_min * dbl_min * dbl_min : 0) == 0) abort (); if ((flt_min * flt_min ? : 0) == 0) abort (); } volatile float f4 = 0x1.0p100f; volatile double d4 = 0x1.0p100; volatile long double flt_div = 0x1.0p100l / (long double) FLT_MIN; volatile long double dbl_div = 0x1.0p100l / (long double) DBL_MIN; void test_div (void) { if (f4 / flt_min != flt_div) abort (); if (d4 / dbl_min != dbl_div) abort (); } volatile float f5 = 0x1.0p30; void test_cast (void) { if ((int)(f1 + f5) != 0x40000001) abort (); } volatile float _Complex f1c = 1.0f + 1.0if; volatile float _Complex f2c = 0x1.0p-30f + 0x1.0p-31if; volatile float _Complex f3c = 0x1.0p-60f + 0x1.0p-59if; volatile double _Complex d1c = 1.0 + 1.0i; volatile double _Complex d2c = 0x1.0p-30 + 0x1.0p-31i; volatile double _Complex d3c = 0x1.0p-60 + 0x1.0p-59i; volatile long double _Complex ldadd1c = 1.0l + 0x1.0p-30l + 1.0il + 0x1.0p-31il; volatile long double _Complex ldadd2c = 1.0l + 0x1.0p-30l + 0x1.0p-60l + 1.0il + 0x1.0p-31il + 0x1.0p-59il; volatile long double _Complex ldadd2cc = 1.0l + 0x1.0p-30l + 0x1.0p-60l - 1.0il - 0x1.0p-31il - 0x1.0p-59il; volatile float _Complex flt_minc = FLT_MIN; volatile double _Complex dbl_minc = DBL_MIN; volatile float _Complex f4c = 0x1.0p100f; volatile double _Complex d4c = 0x1.0p100; void test_complex (void) { if (f1c + f2c != ldadd1c) abort (); if (f1c + f2c + f3c != ldadd2c) abort (); if (d1c + d2c != ldadd1c) abort (); if (d1c + d2c + d3c != ldadd2c) abort (); if (__real__ (f1c + f2c + f3c) != ldadd2) abort (); if (__imag__ (d1c + d2c + d3c) != __imag__ ldadd2c) abort (); if (~(d1c + d2c + d3c) != ldadd2cc) abort (); /* The following call libgcc functions and so would fail unless they call those for long double. */ if (flt_minc * flt_minc != flt_min2) abort (); if (dbl_minc * dbl_minc * dbl_minc != dbl_min3) abort (); if (f4c / flt_minc != flt_div) abort (); if (d4c / dbl_minc != dbl_div) abort (); if (f4 / flt_minc != flt_div) abort (); if (d4 / dbl_minc != dbl_div) abort (); if (f4c / flt_min != flt_div) abort (); if (d4c / dbl_min != dbl_div) abort (); } int main (void) { test_add (); test_sub (); test_mul (); test_div (); test_cast (); test_complex (); exit (0); }
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