Remove unused math files

Remove empty files due to the sin/cos improvements: k_sinf.c, k_cosf.c,
k_cos.c, k_sin.c.  After the tanf change s_rem_pio2f.c and k_rem_pio2f.c
(and the ia64, m68k and powerpc equivalents) are no longer used,
so remove them.  All e_rem_pio2.c files were already empty or commented
out, so remove them too.  Passes build-many-glibcs.

	* math/Makefile: Remove empty files k_sin(f).c, k_cos(f).c.
	Remove unused files e_rem_pio2(f).c, k_rem_pio2f.c.
	* sysdeps/i386/fpu/e_rem_pio2.c: Delete file.
	* sysdeps/ia64/fpu/e_rem_pio2.c: Likewise.
	* sysdeps/ia64/fpu/e_rem_pio2f.c: Likewise.
	* sysdeps/ia64/fpu/k_rem_pio2f.c: Likewise.
	* sysdeps/ieee754/dbl-64/e_rem_pio2.c: Likewise.
	* sysdeps/ieee754/dbl-64/k_cos.c: Likewise.
	* sysdeps/ieee754/dbl-64/k_sin.c: Likewise.
	* sysdeps/ieee754/flt-32/e_rem_pio2f.c: Likewise.
	* sysdeps/ieee754/flt-32/k_cosf.c: Likewise.
	* sysdeps/ieee754/flt-32/k_rem_pio2f.c: Likewise.
	* sysdeps/ieee754/flt-32/k_sinf.c: Likewise.
	* sysdeps/m68k/m680x0/fpu/e_rem_pio2.c: Likewise
	* sysdeps/m68k/m680x0/fpu/e_rem_pio2f.c: Likewise
	* sysdeps/m68k/m680x0/fpu/k_rem_pio2f.c: Likewise
	* sysdeps/powerpc/fpu/e_rem_pio2f.c: Likewise.
	* sysdeps/powerpc/fpu/k_rem_pio2f.c: Likewise.

ChangeLog

@@ -1,3 +1,24 @@
+2018-08-24  Wilco Dijkstra  <[email protected]>
+
+	* math/Makefile: Remove empty files k_sin(f).c, k_cos(f).c.
+	Remove unused files e_rem_pio2(f).c, k_rem_pio2f.c.
+	* sysdeps/i386/fpu/e_rem_pio2.c: Delete file.
+	* sysdeps/ia64/fpu/e_rem_pio2.c: Likewise.
+	* sysdeps/ia64/fpu/e_rem_pio2f.c: Likewise.
+	* sysdeps/ia64/fpu/k_rem_pio2f.c: Likewise.
+	* sysdeps/ieee754/dbl-64/e_rem_pio2.c: Likewise.
+	* sysdeps/ieee754/dbl-64/k_cos.c: Likewise.
+	* sysdeps/ieee754/dbl-64/k_sin.c: Likewise.
+	* sysdeps/ieee754/flt-32/e_rem_pio2f.c: Likewise.
+	* sysdeps/ieee754/flt-32/k_cosf.c: Likewise.
+	* sysdeps/ieee754/flt-32/k_rem_pio2f.c: Likewise.
+	* sysdeps/ieee754/flt-32/k_sinf.c: Likewise.
+	* sysdeps/m68k/m680x0/fpu/e_rem_pio2.c: Likewise
+	* sysdeps/m68k/m680x0/fpu/e_rem_pio2f.c: Likewise
+	* sysdeps/m68k/m680x0/fpu/k_rem_pio2f.c: Likewise
+	* sysdeps/powerpc/fpu/e_rem_pio2f.c: Likewise.
+	* sysdeps/powerpc/fpu/k_rem_pio2f.c: Likewise.
+
 2018-08-23  Joseph Myers  <[email protected]>
 
 	* sysdeps/generic/math-tests-exceptions.h: New file.

math/Makefile

@@ -64,9 +64,9 @@ gen-libm-calls = cargF conjF cimagF crealF cabsF s_cacosF		  \
 libm-calls =								  \
 	e_acosF e_acoshF e_asinF e_atan2F e_atanhF e_coshF e_expF e_fmodF \
 	e_hypotF e_j0F e_j1F e_jnF e_lgammaF_r e_logF e_log10F e_powF	  \
-	e_rem_pio2F e_remainderF e_scalbF e_sinhF e_sqrtF e_gammaF_r	  \
+	e_remainderF e_scalbF e_sinhF e_sqrtF e_gammaF_r	  \
 	e_ilogbF							  \
-	k_cosF k_sinF k_tanF s_asinhF s_atanF s_cbrtF			  \
+	k_tanF s_asinhF s_atanF s_cbrtF					  \
 	s_ceilF s_cosF s_erfF s_expm1F s_fabsF				  \
 	s_floorF s_log1pF s_logbF				  \
 	s_nextafterF s_nexttowardF s_rintF s_scalblnF			  \
@@ -119,23 +119,25 @@ test-types-basic = ldouble double float
 
 # long double support
 type-ldouble-suffix := l
-type-ldouble-routines := t_sincosl k_sincosl s_iscanonicall
+type-ldouble-routines := t_sincosl k_sinl k_cosl k_sincosl s_iscanonicall \
+			 e_rem_pio2l
 type-ldouble-yes := ldouble
 
 # double support
 type-double-suffix :=
 type-double-routines := branred doasin dosincos mpa mpatan2	\
-		       mpatan mpsqrt mptan sincos32	\
-		       sincostab k_rem_pio2
+		       k_rem_pio2 mpatan mpsqrt mptan sincos32	\
+		       sincostab
 
 # float support
 type-float-suffix := f
-type-float-routines := k_rem_pio2f math_errf e_exp2f_data e_logf_data	\
+type-float-routines := math_errf e_exp2f_data e_logf_data	\
 		       e_log2f_data e_powf_log2_data s_sincosf_data
 
 # _Float128 support
 type-float128-suffix := f128
-type-float128-routines := t_sincosf128 k_sincosf128
+type-float128-routines := t_sincosf128 k_sinf128 k_cosf128 k_sincosf128 \
+			  e_rem_pio2f128
 type-float128-yes := float128
 
 # _Float64x may be supported, only as an alias type.