diff options
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | NEWS | 4 | ||||
| -rw-r--r-- | math/auto-libm-test-in | 1 | ||||
| -rw-r--r-- | math/auto-libm-test-out | 25 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/e_powf.c | 4 | ||||
| -rw-r--r-- | sysdeps/x86_64/fpu/libm-test-ulps | 16 |
6 files changed, 49 insertions, 11 deletions
@@ -1,3 +1,13 @@ +2015-09-26 Joseph Myers <joseph@codesourcery.com> + + [BZ #18956] + * sysdeps/ieee754/flt-32/e_powf.c (__ieee754_powf): Add 0x00400000 + not 0x0040000 for high bit of mantissa. Mask with 0xfffff000 when + extracting high part. + * math/auto-libm-test-in: Add another test of pow. + * math/auto-libm-test-out: Regenerated. + * sysdeps/x86_64/fpu/libm-test-ulps: Update. + 2015-09-25 Joseph Myers <joseph@codesourcery.com> [BZ #18825] @@ -15,8 +15,8 @@ Version 2.23 18084, 18086, 18240, 18265, 18370, 18421, 18480, 18525, 18595, 18610, 18618, 18647, 18661, 18674, 18675, 18681, 18757, 18778, 18781, 18787, 18789, 18790, 18795, 18796, 18803, 18820, 18823, 18824, 18825, 18857, - 18863, 18870, 18872, 18873, 18875, 18887, 18921, 18951, 18952, 18961, - 18966, 18967, 18970, 18977, 18980, 18981, 19003. + 18863, 18870, 18872, 18873, 18875, 18887, 18921, 18951, 18952, 18956, + 18961, 18966, 18967, 18970, 18977, 18980, 18981, 19003. * The obsolete header <regexp.h> has been removed. Programs that require this header must be updated to use <regex.h> instead. diff --git a/math/auto-libm-test-in b/math/auto-libm-test-in index 4b93857..e86be23 100644 --- a/math/auto-libm-test-in +++ b/math/auto-libm-test-in @@ -3219,6 +3219,7 @@ pow 0x1.ce78f2p+0 -0x2.7f1f78p+4 pow 0xf.fffffp+124 -0x5.b5b648p+0 pow 0x1.430d4cp+0 0x5.0e462p+4 pow 0x9.8b82ap-4 -0x1.99907ap+12 +pow 0xd.73035p-4 -0x1.47bb8p+8 sin 0 sin -0 diff --git a/math/auto-libm-test-out b/math/auto-libm-test-out index 4126a7c..bcfa832 100644 --- a/math/auto-libm-test-out +++ b/math/auto-libm-test-out @@ -226489,6 +226489,31 @@ pow 0x9.8b82ap-4 -0x1.99907ap+12 = pow tonearest ldbl-128ibm 0x9.8b82ap-4L -0x1.99907ap+12L : plus_infty : inexact-ok overflow errno-erange = pow towardzero ldbl-128ibm 0x9.8b82ap-4L -0x1.99907ap+12L : 0xf.ffffffffffffbffffffffffffcp+1020L : inexact-ok overflow errno-erange-ok = pow upward ldbl-128ibm 0x9.8b82ap-4L -0x1.99907ap+12L : plus_infty : inexact-ok overflow errno-erange +pow 0xd.73035p-4 -0x1.47bb8p+8 += pow downward flt-32 0xd.73035p-4f -0x1.47bb8p+8f : 0x4.52398p+80f : inexact-ok += pow tonearest flt-32 0xd.73035p-4f -0x1.47bb8p+8f : 0x4.523988p+80f : inexact-ok += pow towardzero flt-32 0xd.73035p-4f -0x1.47bb8p+8f : 0x4.52398p+80f : inexact-ok += pow upward flt-32 0xd.73035p-4f -0x1.47bb8p+8f : 0x4.523988p+80f : inexact-ok += pow downward dbl-64 0xd.73035p-4 -0x1.47bb8p+8 : 0x4.523987c590d3p+80 : inexact-ok += pow tonearest dbl-64 0xd.73035p-4 -0x1.47bb8p+8 : 0x4.523987c590d3p+80 : inexact-ok += pow towardzero dbl-64 0xd.73035p-4 -0x1.47bb8p+8 : 0x4.523987c590d3p+80 : inexact-ok += pow upward dbl-64 0xd.73035p-4 -0x1.47bb8p+8 : 0x4.523987c590d34p+80 : inexact-ok += pow downward ldbl-96-intel 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192p+80L : inexact-ok += pow tonearest ldbl-96-intel 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d31928p+80L : inexact-ok += pow towardzero ldbl-96-intel 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192p+80L : inexact-ok += pow upward ldbl-96-intel 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d31928p+80L : inexact-ok += pow downward ldbl-96-m68k 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192p+80L : inexact-ok += pow tonearest ldbl-96-m68k 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d31928p+80L : inexact-ok += pow towardzero ldbl-96-m68k 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192p+80L : inexact-ok += pow upward ldbl-96-m68k 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d31928p+80L : inexact-ok += pow downward ldbl-128 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92c7p+80L : inexact-ok += pow tonearest ldbl-128 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92c74p+80L : inexact-ok += pow towardzero ldbl-128 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92c7p+80L : inexact-ok += pow upward ldbl-128 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92c74p+80L : inexact-ok += pow downward ldbl-128ibm 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92cp+80L : inexact-ok += pow tonearest ldbl-128ibm 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92cp+80L : inexact-ok += pow towardzero ldbl-128ibm 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92cp+80L : inexact-ok += pow upward ldbl-128ibm 0xd.73035p-4L -0x1.47bb8p+8L : 0x4.523987c590d3192757b32fb92ep+80L : inexact-ok sin 0 = sin downward flt-32 0x0p+0f : 0x0p+0f : inexact-ok = sin tonearest flt-32 0x0p+0f : 0x0p+0f : inexact-ok diff --git a/sysdeps/ieee754/flt-32/e_powf.c b/sysdeps/ieee754/flt-32/e_powf.c index 1804296..c72fe37 100644 --- a/sysdeps/ieee754/flt-32/e_powf.c +++ b/sysdeps/ieee754/flt-32/e_powf.c @@ -166,7 +166,9 @@ __ieee754_powf(float x, float y) GET_FLOAT_WORD(is,s_h); SET_FLOAT_WORD(s_h,is&0xfffff000); /* t_h=ax+bp[k] High */ - SET_FLOAT_WORD(t_h,((ix>>1)|0x20000000)+0x0040000+(k<<21)); + SET_FLOAT_WORD (t_h, + ((((ix>>1)|0x20000000)+0x00400000+(k<<21)) + & 0xfffff000)); t_l = ax - (t_h-bp[k]); s_l = v*((u-s_h*t_h)-s_h*t_l); /* compute log(ax) */ diff --git a/sysdeps/x86_64/fpu/libm-test-ulps b/sysdeps/x86_64/fpu/libm-test-ulps index 127a8e1..12c3dd1 100644 --- a/sysdeps/x86_64/fpu/libm-test-ulps +++ b/sysdeps/x86_64/fpu/libm-test-ulps @@ -1966,8 +1966,8 @@ Function: "log_vlen8_avx2": float: 2 Function: "pow": -float: 3 -ifloat: 3 +float: 1 +ifloat: 1 ildouble: 1 ldouble: 1 @@ -2003,25 +2003,25 @@ ldouble: 2 Function: "pow_downward": double: 1 -float: 4 +float: 1 idouble: 1 -ifloat: 4 +ifloat: 1 ildouble: 4 ldouble: 4 Function: "pow_towardzero": double: 1 -float: 8 +float: 1 idouble: 1 -ifloat: 8 +ifloat: 1 ildouble: 1 ldouble: 1 Function: "pow_upward": double: 1 -float: 8 +float: 1 idouble: 1 -ifloat: 8 +ifloat: 1 ildouble: 2 ldouble: 2 |