gcc/testsuite/gcc.dg/torture/builtin-math-5.c

   1 /* Copyright (C) 2009  Free Software Foundation.
   2
   3    Test things that should block GCC from optimizing compile-time
   4    constants passed to a builtin complex transcendental functions.
   5
   6    Origin: Kaveh R. Ghazi,  January 28, 2009.  */
   7
   8 /* { dg-do compile } */
   9 /* { dg-require-effective-target inf } */
  10 /* { dg-options "-fdump-tree-original" } */
  11
  12 extern void foof (_Complex float);
  13 extern void foo (_Complex double);
  14 extern void fool (_Complex long double);
  15
  16 #define TESTIT(FUNC, ARG) do { \
  17   foof (__builtin_##FUNC##f (ARG##F)); \
  18   foo (__builtin_##FUNC (ARG)); \
  19   fool (__builtin_##FUNC##l (ARG##L)); \
  20 } while (0)
  21
  22 #define TESTIT2(FUNC, ARG0, ARG1) do { \
  23   foof (__builtin_##FUNC##f (ARG0##F, ARG1##F)); \
  24   foo (__builtin_##FUNC (ARG0, ARG1)); \
  25   fool (__builtin_##FUNC##l (ARG0##L, ARG1##L)); \
  26 } while (0)
  27
  28 void bar()
  29 {
  30   /* An argument of NaN is not evaluated at compile-time.  */
  31   foof (__builtin_csqrtf (__builtin_nanf("")));
  32   foo (__builtin_csqrt (__builtin_nan("")));
  33   fool (__builtin_csqrtl (__builtin_nanl("")));
  34
  35   /* An argument of Inf/-Inf is not evaluated at compile-time.  */
  36   foof (__builtin_csqrtf (__builtin_inff()));
  37   foo (__builtin_csqrt (__builtin_inf()));
  38   fool (__builtin_csqrtl (__builtin_infl()));
  39   foof (__builtin_csqrtf (-__builtin_inff()));
  40   foo (__builtin_csqrt (-__builtin_inf()));
  41   fool (__builtin_csqrtl (-__builtin_infl()));
  42
  43   /* Check for overflow/underflow.  */
  44   TESTIT (cexp, 1e20);
  45   TESTIT (cexp, -1e20);
  46
  47   /* An argument of NaN is not evaluated at compile-time.  */
  48   foof (__builtin_cpowf (__builtin_nanf(""), 2.5F));
  49   foo (__builtin_cpow (__builtin_nan(""), 2.5));
  50   fool (__builtin_cpowl (__builtin_nanl(""), 2.5L));
  51   foof (__builtin_cpowf (2.5F, __builtin_nanf("")));
  52   foo (__builtin_cpow (2.5, __builtin_nan("")));
  53   fool (__builtin_cpowl (2.5L, __builtin_nanl("")));
  54
  55   /* An argument of Inf/-Inf is not evaluated at compile-time.  */
  56   foof (__builtin_cpowf (__builtin_inff(), 2.5F));
  57   foo (__builtin_cpow (__builtin_inf(), 2.5));
  58   fool (__builtin_cpowl (__builtin_infl(), 2.5L));
  59   foof (__builtin_cpowf (-__builtin_inff(), 2.5F));
  60   foo (__builtin_cpow (-__builtin_inf(), 2.5));
  61   fool (__builtin_cpowl (-__builtin_infl(), 2.5L));
  62   foof (__builtin_cpowf (2.5F, __builtin_inff()));
  63   foo (__builtin_cpow (2.5, __builtin_inf()));
  64   fool (__builtin_cpowl (2.5L, __builtin_infl()));
  65   foof (__builtin_cpowf (2.5F, -__builtin_inff()));
  66   foo (__builtin_cpow (2.5, -__builtin_inf()));
  67   fool (__builtin_cpowl (2.5L, -__builtin_infl()));
  68
  69   /* Check for Inv/NaN return values.  */
  70   TESTIT2 (cpow, -0.0, -4.5); /* Returns Inf */
  71   TESTIT2 (cpow, 0.0, -4.5); /* Returns Inf */
  72
  73   /* Check for overflow/underflow.  */
  74   foof (__builtin_cpowf (__FLT_MAX__, 3.5F));
  75   foof (__builtin_cpowf (__FLT_MAX__ * 1.FI, 3.5F));
  76   foo (__builtin_cpow (__DBL_MAX__, 3.5));
  77   foo (__builtin_cpow (__DBL_MAX__ * 1.I, 3.5));
  78   fool (__builtin_cpowl (__LDBL_MAX__, 3.5L));
  79   fool (__builtin_cpowl (__LDBL_MAX__ * 1.LI, 3.5L));
  80   TESTIT2 (cpow, 2.0, 0x1p50);
  81   TESTIT2 (cpow, 2.0, 0x1p28);
  82   TESTIT2 (cpow, 2.0, 0x1p24);
  83   foof (__builtin_cpowf (__FLT_MAX__, -3.5F));
  84   foof (__builtin_cpowf (__FLT_MAX__ * 1.FI, -3.5F));
  85   foo (__builtin_cpow (__DBL_MAX__, -3.5));
  86   foo (__builtin_cpow (__DBL_MAX__ * 1.I, -3.5));
  87   fool (__builtin_cpowl (__LDBL_MAX__, -3.5L));
  88   fool (__builtin_cpowl (__LDBL_MAX__ * 1.LI, -3.5L));
  89   TESTIT2 (cpow, 2.0, -0x1p50);
  90   TESTIT2 (cpow, 2.0, -0x1p28);
  91   TESTIT2 (cpow, 2.0, -0x1p24);
  92
  93 }
  94
  95 /* { dg-final { scan-tree-dump-times "csqrtf" 3 "original" } } */
  96 /* { dg-final { scan-tree-dump-times "csqrt " 3 "original" } } */
  97 /* { dg-final { scan-tree-dump-times "csqrtl" 3 "original" } } */
  98 /* { dg-final { scan-tree-dump-times "cexpf" 2 "original" } } */
  99 /* { dg-final { scan-tree-dump-times "cexp " 2 "original" } } */
 100 /* { dg-final { scan-tree-dump-times "cexpl" 2 "original" } } */
 101 /* { dg-final { scan-tree-dump-times "cpowf" 18 "original" } } */
 102 /* { dg-final { scan-tree-dump-times "cpow " 18 "original" } } */
 103 /* { dg-final { scan-tree-dump-times "cpowl" 18 "original" } } */