[BZ #3919]
* math/libm-test.inc (log_test): Test -Inf and NaN. (log10_test, log1p_test, log2_test): Test -Inf. * sysdeps/i386/fpu/e_log.S (__ieee754_log): Don't raise FE_INVALID when argument is qNaN. * sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/i386/fpu/e_logf.S (__ieee754_logf): Likewise. * sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise. * sysdeps/x86_64/fpu/e_log10l.S (__ieee754_log10l): Replace andb $1, %ah with testb $1, %ah, don't test for parity, instead testb $4, %ah and jump if non-zero. * sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise. * sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Likewise. 2007-03-15 Jakub Jelinek <jakub@redhat.com>
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Ulrich Drepper
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ChangeLog
16
ChangeLog
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@ -1,3 +1,19 @@
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2007-03-15 Jakub Jelinek <jakub@redhat.com>
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[BZ #3919]
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* math/libm-test.inc (log_test): Test -Inf and NaN.
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(log10_test, log1p_test, log2_test): Test -Inf.
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* sysdeps/i386/fpu/e_log.S (__ieee754_log): Don't raise
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FE_INVALID when argument is qNaN.
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* sysdeps/i386/fpu/e_logl.S (__ieee754_logl): Likewise.
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* sysdeps/i386/fpu/e_logf.S (__ieee754_logf): Likewise.
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* sysdeps/x86_64/fpu/e_logl.S (__ieee754_logl): Likewise.
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* sysdeps/x86_64/fpu/e_log10l.S (__ieee754_log10l): Replace
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andb $1, %ah with testb $1, %ah, don't test for parity, instead
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testb $4, %ah and jump if non-zero.
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* sysdeps/x86_64/fpu/e_log2l.S (__ieee754_log2l): Likewise.
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* sysdeps/x86_64/fpu/s_log1pl.S (__log1pl): Likewise.
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2007-03-15 Jakub Jelinek <jakub@redhat.com>
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[BZ #4101]
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@ -4127,7 +4127,9 @@ log_test (void)
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TEST_f_f (log, 1, 0);
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TEST_f_f (log, -1, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log, plus_infty, plus_infty);
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TEST_f_f (log, nan_value, nan_value);
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TEST_f_f (log, M_El, 1);
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TEST_f_f (log, 1.0 / M_El, -1);
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@ -4157,6 +4159,7 @@ log10_test (void)
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/* log10 (x) == NaN plus invalid exception if x < 0. */
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TEST_f_f (log10, -1, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log10, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log10, plus_infty, plus_infty);
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TEST_f_f (log10, nan_value, nan_value);
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@ -4188,6 +4191,7 @@ log1p_test (void)
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TEST_f_f (log1p, -1, minus_infty, DIVIDE_BY_ZERO_EXCEPTION);
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TEST_f_f (log1p, -2, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log1p, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log1p, plus_infty, plus_infty);
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TEST_f_f (log1p, nan_value, nan_value);
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@ -4218,6 +4222,7 @@ log2_test (void)
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TEST_f_f (log2, 1, 0);
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TEST_f_f (log2, -1, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log2, minus_infty, nan_value, INVALID_EXCEPTION);
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TEST_f_f (log2, plus_infty, plus_infty);
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TEST_f_f (log2, nan_value, nan_value);
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@ -36,11 +36,15 @@ limit: .double 0.29
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ENTRY(__ieee754_log)
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fldln2 // log(2)
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fldl 4(%esp) // x : log(2)
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fxam
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fnstsw
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#ifdef PIC
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LOAD_PIC_REG (dx)
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#endif
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fld %st // x : x : log(2)
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fsubl MO(one) // x-1 : x : log(2)
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sahf
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jc 3f // in case x is NaN or +-Inf
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4: fsubl MO(one) // x-1 : x : log(2)
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fld %st // x-1 : x-1 : x : log(2)
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fabs // |x-1| : x-1 : x : log(2)
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fcompl MO(limit) // x-1 : x : log(2)
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@ -54,4 +58,9 @@ ENTRY(__ieee754_log)
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2: fstp %st(0) // x : log(2)
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fyl2x // log(x)
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ret
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3: jp 4b // in case x is +-Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__ieee754_log)
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@ -37,11 +37,15 @@ limit: .double 0.29
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ENTRY(__ieee754_logf)
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fldln2 // log(2)
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flds 4(%esp) // x : log(2)
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fxam
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fnstsw
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#ifdef PIC
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LOAD_PIC_REG (dx)
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#endif
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fld %st // x : x : log(2)
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fsubl MO(one) // x-1 : x : log(2)
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sahf
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jc 3f // in case x is NaN or +-Inf
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4: fsubl MO(one) // x-1 : x : log(2)
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fld %st // x-1 : x-1 : x : log(2)
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fabs // |x-1| : x-1 : x : log(2)
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fcompl MO(limit) // x-1 : x : log(2)
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@ -55,4 +59,9 @@ ENTRY(__ieee754_logf)
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2: fstp %st(0) // x : log(2)
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fyl2x // log(x)
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ret
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3: jp 4b // in case x is +-Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__ieee754_logf)
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@ -37,11 +37,15 @@ limit: .double 0.29
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ENTRY(__ieee754_logl)
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fldln2 // log(2)
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fldt 4(%esp) // x : log(2)
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fxam
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fnstsw
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#ifdef PIC
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LOAD_PIC_REG (dx)
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#endif
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fld %st // x : x : log(2)
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fsubl MO(one) // x-1 : x : log(2)
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sahf
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jc 3f // in case x is NaN or +-Inf
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4: fsubl MO(one) // x-1 : x : log(2)
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fld %st // x-1 : x-1 : x : log(2)
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fabs // |x-1| : x-1 : x : log(2)
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fcompl MO(limit) // x-1 : x : log(2)
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@ -55,4 +59,9 @@ ENTRY(__ieee754_logl)
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2: fstp %st(0) // x : log(2)
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fyl2x // log(x)
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ret
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3: jp 4b // in case x is +-Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__ieee754_logl)
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@ -42,7 +42,7 @@ ENTRY(__ieee754_log10l)
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fxam
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fnstsw
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fld %st // x : x : log10(2)
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andb $1,%ah
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testb $1, %ah
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jnz 3f // in case x is NaN or ±Inf
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4: fsubl MO(one) // x-1 : x : log10(2)
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fld %st // x-1 : x-1 : x : log10(2)
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@ -59,7 +59,8 @@ ENTRY(__ieee754_log10l)
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fyl2x // log10(x)
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ret
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3: jp 4b // in case x is ±Inf
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3: testb $4, %ah
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jnz 4b // in case x is ±Inf
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fstp %st(1)
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fstp %st(1)
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ret
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@ -39,7 +39,7 @@ ENTRY(__ieee754_log2l)
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fxam
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fnstsw
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fld %st // x : x : 1
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andb $1,%ah
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testb $1, %ah
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jnz 3f // in case x is NaN or ±Inf
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4: fsub %st(2), %st // x-1 : x : 1
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fld %st // x-1 : x-1 : x : 1
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@ -56,7 +56,8 @@ ENTRY(__ieee754_log2l)
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fyl2x // log(x)
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ret
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3: jp 4b // in case x is ±Inf
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3: testb $4, %ah
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jnz 4b // in case x is ±Inf
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fstp %st(1)
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fstp %st(1)
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ret
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@ -38,8 +38,12 @@ limit: .double 0.29
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ENTRY(__ieee754_logl)
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fldln2 // log(2)
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fldt 8(%rsp) // x : log(2)
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fxam
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fnstsw
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fld %st // x : x : log(2)
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fsubl MO(one) // x-1 : x : log(2)
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testb $1, %ah
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jnz 3f // in case x is NaN or +-Inf
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4: fsubl MO(one) // x-1 : x : log(2)
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fld %st // x-1 : x-1 : x : log(2)
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fabs // |x-1| : x-1 : x : log(2)
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fcompl MO(limit) // x-1 : x : log(2)
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@ -53,4 +57,10 @@ ENTRY(__ieee754_logl)
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2: fstp %st(0) // x : log(2)
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fyl2x // log(x)
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ret
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3: testb $4, %ah
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jnz 4b // in case x is +-Inf
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fstp %st(1)
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fstp %st(1)
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ret
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END (__ieee754_logl)
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@ -45,7 +45,7 @@ ENTRY(__log1pl)
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fxam
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fnstsw
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fld %st
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andb $1,%ah
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testb $1, %ah
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jnz 3f // in case x is NaN or ±Inf
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4:
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fabs
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@ -62,7 +62,8 @@ ENTRY(__log1pl)
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2: fyl2xp1
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ret
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3: jp 4b // in case x is ±Inf
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3: testb $4, %ah
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jnz 4b // in case x is ±Inf
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fstp %st(1)
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fstp %st(1)
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ret
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