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[/] [openrisc/] [trunk/] [gnu-stable/] [gcc-4.5.1/] [gcc/] [testsuite/] [gcc.dg/] [torture/] [builtin-modf-1.c] - Blame information for rev 826

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1 298 jeremybenn 
/* Copyright (C) 2007  Free Software Foundation.
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   Verify that built-in folding of modf is correctly performed by the
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   compiler.
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   Origin: Kaveh R. Ghazi,  February 23, 2007.  */
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/* { dg-do link } */
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/* { dg-options "-fno-finite-math-only" { target sh*-*-* } } */
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/* { dg-options "-funsafe-math-optimizations -fsigned-zeros -fno-associative-math" { target powerpc-*-darwin* powerpc*-*-linux* } } */
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extern void link_error(int);
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/* Return TRUE if the sign of X != sign of Y.  This is important when
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   comparing signed zeros.  */
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#define CKSGN_F(X,Y) \
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  (__builtin_copysignf(1.0F,(X)) != __builtin_copysignf(1.0F,(Y)))
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#define CKSGN(X,Y) \
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  (__builtin_copysign(1.0,(X)) != __builtin_copysign(1.0,(Y)))
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#define CKSGN_L(X,Y) \
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  (__builtin_copysignl(1.0L,(X)) != __builtin_copysignl(1.0L,(Y)))
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/* We use these macros if we can only check these when optimizing.  In
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   some cases we rely on other optimizations to propagate the value
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   and fold away certain constructs.  Likewise for the sign testing.
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   TRUE means an error occurred.  */
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#ifdef __OPTIMIZE__
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#define CKRES(X) (X)
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#define CKIPTR(X,Y) X != Y
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#define CKSGN_IPTR_F(X,Y) CKSGN_F(X,Y)
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#define CKSGN_IPTR(X,Y) CKSGN(X,Y)
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#define CKSGN_IPTR_L(X,Y) CKSGN_L(X,Y)
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#else
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#define CKRES(X) 0
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#define CKIPTR(X,Y) 0
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#define CKSGN_IPTR_F(X,Y) 0
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#define CKSGN_IPTR(X,Y) 0
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#define CKSGN_IPTR_L(X,Y) 0
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#endif
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/* Test that modf(ARG1,&iptr) == FRACRES && iptr == INTRES.  Check the
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   sign in case we get -0.0.  */
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#define TESTIT_MODF(ARG,INTRES,FRACRES) do { \
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  float iptrf = 0.5; double iptr = 0.5; long double iptrl = 0.5; \
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  if (__builtin_modff(ARG##f,&iptrf) != FRACRES##f \
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      || CKIPTR(iptrf,INTRES##f) \
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      || CKSGN_F(__builtin_modff(ARG##f,&iptrf),FRACRES##f) \
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      || CKSGN_IPTR_F(iptrf,INTRES##f)) \
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    link_error(__LINE__); \
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  if (__builtin_modf(ARG,&iptr) != FRACRES \
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      || CKIPTR(iptr,INTRES) \
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      || CKSGN(__builtin_modf(ARG,&iptr),FRACRES) \
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      || CKSGN_IPTR(iptr,INTRES)) \
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    link_error(__LINE__); \
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  if (__builtin_modfl(ARG##l,&iptrl) != FRACRES##l \
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      || CKIPTR(iptrl,INTRES##l) \
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      || CKSGN_L(__builtin_modfl(ARG##l,&iptrl),FRACRES##l) \
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      || CKSGN_IPTR_L(iptrl,INTRES##l)) \
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    link_error(__LINE__); \
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  } while (0)
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62 
/* Test that modf(NEG FUNCARG(ARGARG, &iptr)) == FRACRES &&
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   FUNCRES(iptr) is true.  Check the sign of both as well.  This is
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   for checking an argument of Inf.  */
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#ifndef __SPU__
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#define TESTIT_MODF2(NEG,FUNCARG,ARGARG,FUNCRES,FRACRES) do { \
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  float iptrf = 0.5; double iptr = 0.5; long double iptrl = 0.5; \
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  if (__builtin_modff(NEG __builtin_##FUNCARG##f(ARGARG),&iptrf) != FRACRES##f \
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      || CKSGN_F(__builtin_modff(NEG __builtin_##FUNCARG##f(ARGARG),&iptrf), FRACRES##f) \
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      || CKIPTR(!__builtin_##FUNCRES##f(iptrf),0) \
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      || CKSGN_IPTR_F(iptrf,FRACRES##f)) \
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    link_error(__LINE__); \
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  if (__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr) != FRACRES \
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      || CKSGN(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr), FRACRES) \
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      || CKIPTR(!__builtin_##FUNCRES(iptr),0) \
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      || CKSGN_IPTR(iptr,FRACRES)) \
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    link_error(__LINE__); \
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  if (__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl) != FRACRES##l \
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      || CKSGN_L(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl), FRACRES##l) \
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      || CKIPTR(!__builtin_##FUNCRES##l(iptrl),0) \
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      || CKSGN_IPTR_L(iptrl,FRACRES##l)) \
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    link_error(__LINE__); \
83 
  } while (0)
84 
#else
85 
#define TESTIT_MODF2(NEG,FUNCARG,ARGARG,FUNCRES,FRACRES) do { \
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  /* SPU single-precision floating point format does not support Inf or Nan.  */ \
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  double iptr = 0.5; long double iptrl = 0.5; \
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  if (__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr) != FRACRES \
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      || CKSGN(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr), FRACRES) \
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      || CKIPTR(!__builtin_##FUNCRES(iptr),0) \
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      || CKSGN_IPTR(iptr,FRACRES)) \
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    link_error(__LINE__); \
93 
  if (__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl) != FRACRES##l \
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      || CKSGN_L(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl), FRACRES##l) \
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      || CKIPTR(!__builtin_##FUNCRES##l(iptrl),0) \
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      || CKSGN_IPTR_L(iptrl,FRACRES##l)) \
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    link_error(__LINE__); \
98 
  } while (0)
99 
#endif
100 
 
101 
/* Test that FUNCRES(modf(NEG FUNCARG(ARGARG, &iptr))) is true &&
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   FUNCRES(iptr) is true.  Check the sign of both as well.  This is
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   for checking an argument of NaN.  */
104 
#ifndef __SPU__
105 
#define TESTIT_MODF3(NEG,FUNCARG,ARGARG,FUNCRES) do { \
106 
  float iptrf = 0.5; double iptr = 0.5; long double iptrl = 0.5; \
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  if (CKRES(!__builtin_##FUNCRES##f(__builtin_modff(NEG __builtin_##FUNCARG##f(ARGARG),&iptrf))) \
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      || CKSGN_F(__builtin_modff(NEG __builtin_##FUNCARG##f(ARGARG),&iptrf), NEG 1) \
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      || CKIPTR(!__builtin_##FUNCRES##f(iptrf),0) \
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      || CKSGN_IPTR_F(iptrf,NEG 1)) \
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    link_error(__LINE__); \
112 
  if (CKRES(!__builtin_##FUNCRES(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr))) \
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      || CKSGN(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr), NEG 1) \
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      || CKIPTR(!__builtin_##FUNCRES(iptr),0) \
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      || CKSGN_IPTR(iptr,NEG 1)) \
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    link_error(__LINE__); \
117 
  if (CKRES(!__builtin_##FUNCRES##l(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl))) \
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      || CKSGN_L(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl), NEG 1) \
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      || CKIPTR(!__builtin_##FUNCRES##l(iptrl),0) \
120 
      || CKSGN_IPTR_L(iptrl,NEG 1)) \
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    link_error(__LINE__); \
122 
  } while (0)
123 
#else
124 
#define TESTIT_MODF3(NEG,FUNCARG,ARGARG,FUNCRES) do { \
125 
  /* SPU single-precision floating point format does not support Inf or Nan.  */ \
126 
  double iptr = 0.5; long double iptrl = 0.5; \
127 
  if (CKRES(!__builtin_##FUNCRES(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr))) \
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      || CKSGN(__builtin_modf(NEG __builtin_##FUNCARG(ARGARG),&iptr), NEG 1) \
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      || CKIPTR(!__builtin_##FUNCRES(iptr),0) \
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      || CKSGN_IPTR(iptr,NEG 1)) \
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    link_error(__LINE__); \
132 
  if (CKRES(!__builtin_##FUNCRES##l(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl))) \
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      || CKSGN_L(__builtin_modfl(NEG __builtin_##FUNCARG##l(ARGARG),&iptrl), NEG 1) \
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      || CKIPTR(!__builtin_##FUNCRES##l(iptrl),0) \
135 
      || CKSGN_IPTR_L(iptrl,NEG 1)) \
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    link_error(__LINE__); \
137 
  } while (0)
138 
#endif
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140 
void __attribute__ ((__noinline__))
141 
foo(void)
142 
{
143 
  /* Test that modf(ARG1,&iptr) -> ARG3 && iptr == ARG2.  */
144 
  TESTIT_MODF (0x1p10F+0.5, 0x1p10, 0.5);
145 
  TESTIT_MODF (0x1p10F+0x1p-10, 0x1p10, 0x1p-10);
146 
  TESTIT_MODF (12345678L/17.0, 726216.0, -726216L+12345678L/17.0);
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  TESTIT_MODF (555.555, 555.0, -555+555.555);
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  TESTIT_MODF (5000/11.0, 454.0, -454+5000/11.0);
149 
  TESTIT_MODF (1000/7.0, 142.0, -142+1000/7.0);
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  TESTIT_MODF (123/7.0, 17.0, -17+123/7.0);
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  TESTIT_MODF (117/7.0, 16.0, -16+117/7.0);
152 
  TESTIT_MODF (5.5, 5.0, 0.5);
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  TESTIT_MODF (1.5, 1.0, 0.5);
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  TESTIT_MODF (4/3.0, 1.0, -1+4/3.0);
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  TESTIT_MODF (1.0, 1.0, 0.0);
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  TESTIT_MODF (0.5, 0.0, 0.5);
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  TESTIT_MODF (4/9.0, 0.0, 4/9.0);
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  TESTIT_MODF (1/3.0, 0.0, 1/3.0);
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  TESTIT_MODF (1/9.0, 0.0, 1/9.0);
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  TESTIT_MODF (0.0, 0.0, 0.0);
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162 
  TESTIT_MODF (-0.0, -0.0, -0.0);
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  TESTIT_MODF (-1/9.0, -0.0, -1/9.0);
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  TESTIT_MODF (-1/3.0, -0.0, -1/3.0);
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  TESTIT_MODF (-4/9.0, -0.0, -4/9.0);
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  TESTIT_MODF (-0.5, -0.0, -0.5);
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  TESTIT_MODF (-1.0, -1.0, -0.0);
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  TESTIT_MODF (-4/3.0, -1.0, 1-4/3.0);
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  TESTIT_MODF (-1.5, -1.0, -0.5);
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  TESTIT_MODF (-5.5, -5.0, -0.5);
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  TESTIT_MODF (-117/7.0, -16.0, 16-117/7.0);
172 
  TESTIT_MODF (-123/7.0, -17.0, 17-123/7.0);
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  TESTIT_MODF (-1000/7.0, -142.0, 142-1000/7.0);
174 
  TESTIT_MODF (-5000/11.0, -454.0, 454-5000/11.0);
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  TESTIT_MODF (-555.555, -555.0, 555-555.555);
176 
  TESTIT_MODF (-12345678L/17.0, -726216.0, 726216L-12345678L/17.0);
177 
  TESTIT_MODF (-0x1p10F-0x1p-10, -0x1p10, -0x1p-10);
178 
  TESTIT_MODF (-0x1p10F-0.5, -0x1p10, -0.5);
179 
 
180 
 
181 
  /* Test for modf(+-Inf,&i) -> (i=+-0.0, +-Inf).  */
182 
  TESTIT_MODF2 ( ,inf, , isinf, 0.0);
183 
  TESTIT_MODF2 (- ,inf, , isinf, -0.0);
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185 
  /* Test for and modf(+-NaN,&i) -> (i=+-NaN, +-NaN).  */
186 
  TESTIT_MODF3 ( ,nan, "", isnan);
187 
  TESTIT_MODF3 (- ,nan, "", isnan);
188 
}
189 
 
190 
int main()
191 
{
192 
  foo();
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  return 0;
195 
}

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