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jeremybenn |
/* Copyright (C) 2009 Free Software Foundation.
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Verify that folding of complex mul and div work correctly.
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Origin: Kaveh R. Ghazi, August 13, 2009. */
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/* { dg-do run } */
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/* C6X fails due to -freciprocal-math default. */
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/* { dg-skip-if "" { tic6x-*-* } "*" "" } */
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/* { dg-add-options ieee } */
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/* { dg-require-effective-target large_double } */
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extern void link_error(int);
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/* Evaluate this expression at compile-time. */
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#define COMPILETIME_TESTIT(TYPE,X,OP,Y,RES) do { \
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if ((_Complex TYPE)(X) OP (_Complex TYPE)(Y) != (_Complex TYPE)(RES)) \
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link_error(__LINE__); \
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} while (0)
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/* Use this error function for cases which only evaluate at
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compile-time when optimizing. */
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#ifdef __OPTIMIZE__
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# define ERROR_FUNC(X) link_error(X)
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#else
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# define ERROR_FUNC(X) __builtin_abort()
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#endif
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/* Evaluate this expression at compile-time using static initializers. */
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#define STATICINIT_TESTIT(TYPE,X,OP,Y,RES) do { \
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static const _Complex TYPE foo = (_Complex TYPE)(X) OP (_Complex TYPE)(Y); \
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if (foo != (_Complex TYPE)(RES)) \
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ERROR_FUNC (__LINE__); \
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} while (0)
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/* Evaluate this expression at runtime. */
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#define RUNTIME_TESTIT(TYPE,X,OP,Y,RES) do { \
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volatile _Complex TYPE foo; \
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foo = (_Complex TYPE)(X); \
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foo OP##= (_Complex TYPE)(Y); \
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if (foo != (_Complex TYPE)(RES)) \
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__builtin_abort(); \
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} while (0)
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/* Evaluate this expression at compile-time and runtime. */
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#define TESTIT(TYPE,X,OP,Y,RES) do { \
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STATICINIT_TESTIT(TYPE,X,OP,Y,RES); \
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COMPILETIME_TESTIT(TYPE,X,OP,Y,RES); \
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RUNTIME_TESTIT(TYPE,X,OP,Y,RES); \
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} while (0)
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/* Either the real or imaginary parts should be infinity. */
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#define TEST_ONE_PART_INF(VAL) do { \
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static const _Complex double foo = (VAL); \
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if (! __builtin_isinf(__real foo) && ! __builtin_isinf(__imag foo)) \
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ERROR_FUNC (__LINE__); \
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if (! __builtin_isinf(__real (VAL)) && ! __builtin_isinf(__imag (VAL))) \
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__builtin_abort(); \
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} while (0)
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int main()
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{
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/* Test some regular finite values. */
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TESTIT (double, 3.+4.i, *, 2, 6+8i);
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TESTIT (double, 3.+4.i, /, 2, 1.5+2i);
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TESTIT (int, 3+4i, *, 2, 6+8i);
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TESTIT (int, 3+4i, /, 2, 1+2i);
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TESTIT (double, 3.+4.i, *, 2+5i, -14+23i);
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TESTIT (double, 3.+4.i, /, 5i, .8-.6i);
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TESTIT (int, 3+4i, *, 2+5i, -14+23i);
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TESTIT (int, 30+40i, /, 5i, 8-6i);
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TESTIT (int, 14+6i, /, 7+3i, 2);
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TESTIT (int, 8+24i, /, 4+12i, 2);
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/* Test that we don't overflow. */
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TESTIT (double,
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(__DBL_MAX__ * 0.5 + __DBL_MAX__ * 0.5i),
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/,
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(__DBL_MAX__ * 0.25 + __DBL_MAX__ * 0.25i),
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2);
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/* Test for accuracy. */
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COMPILETIME_TESTIT (double,
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(1 + __DBL_EPSILON__ + 1i),
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*,
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(1 - __DBL_EPSILON__ + 1i),
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-4.93038065763132378382330353301741393545754021943139377981e-32+2i);
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/* This becomes (NaN + iInf). */
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#define VAL1 ((_Complex double)__builtin_inf() * 1i)
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/* Test some C99 Annex G special cases. */
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TEST_ONE_PART_INF ((VAL1) * (VAL1));
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TEST_ONE_PART_INF ((_Complex double)1 / (_Complex double)0);
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TEST_ONE_PART_INF ((VAL1) / (_Complex double)1);
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RUNTIME_TESTIT (double, 1, /, VAL1, 0);
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STATICINIT_TESTIT (double, 1, /, VAL1, 0);
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return 0;
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}
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