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jeremybenn |
/* Copyright (C) 2004 Free Software Foundation.
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Verify that integral FP expressions are optimized.
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Written by Kaveh Ghazi, 2004-03-16. */
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/* { dg-do link } */
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/* We need -ffinite-math-only so that we can fold "foo != foo", where
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foo is a floating point expression. We need -fno-math-errno so
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that various math functions are marked const/pure and can be
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folded. */
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/* { dg-options "-ffinite-math-only -fno-math-errno" } */
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extern int link_failure (int);
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/* Test that the various FP truncation builtins detect integral
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arguments. */
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#define CHECK_FN(MATHFN) \
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if (__builtin_##MATHFN(i1) != i1) link_failure (__LINE__); \
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if (__builtin_##MATHFN##f(i1) != i1) link_failure (__LINE__); \
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if (__builtin_##MATHFN##l(i1) != i1) link_failure (__LINE__);
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#define CHECK_FN_RET(MATHFN, RET) \
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if (__builtin_##MATHFN(i1) != (RET)(double)i1) link_failure (__LINE__); \
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if (__builtin_##MATHFN##f(i1) != (RET)(float)i1) link_failure (__LINE__); \
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if (__builtin_##MATHFN##l(i1) != (RET)(long double)i1) link_failure (__LINE__);
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/* Check that various other integral expressions are detected. */
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#define CHECK_EXPR(EXPR,NAME) \
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if (__builtin_ceill(EXPR) != (EXPR)) link_failure (__LINE__); \
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if (__builtin_lroundl(EXPR) != (long)(long double)(EXPR)) link_failure (__LINE__);
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void __attribute__ ((__noinline__)) test (int i1, int i2)
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{
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CHECK_FN(ceil);
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CHECK_FN(floor);
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CHECK_FN(nearbyint);
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CHECK_FN(rint);
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CHECK_FN(round);
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CHECK_FN(trunc);
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CHECK_FN_RET(lround, long);
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CHECK_FN_RET(llround, long long);
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CHECK_FN_RET(lrint, long);
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CHECK_FN_RET(llrint, long long);
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CHECK_FN_RET(lceil, long);
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CHECK_FN_RET(llceil, long long);
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CHECK_FN_RET(lfloor, long);
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CHECK_FN_RET(llfloor, long long);
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CHECK_EXPR (5.0, REAL_CST);
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CHECK_EXPR (5.0F, REAL_CSTf);
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CHECK_EXPR (5.0L, REAL_CSTl);
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CHECK_EXPR ((double)i1, FLOAT_EXPR);
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CHECK_EXPR ((float)i1, FLOAT_EXPRf);
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CHECK_EXPR ((long double)i1, FLOAT_EXPRl);
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CHECK_EXPR (__builtin_fabs(i1), ABS_EXPR);
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CHECK_EXPR (__builtin_fabsf(i1), ABS_EXPRf);
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CHECK_EXPR (__builtin_fabsl(i1), ABS_EXPRl);
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CHECK_EXPR (((void)i1,(double)i2), COMPOUND_EXPR);
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CHECK_EXPR ((double)i1+i2, PLUS_EXPR);
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CHECK_EXPR ((double)i1-i2, MINUS_EXPR);
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CHECK_EXPR ((double)i1*i2, MULT_EXPR);
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}
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int main (void)
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{
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test (1, 2);
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return 0;
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}
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