Remove useless SPARC signbit aliases.

The SPARC implementations of __signbit* functions have aliases
signbit, signbitf, signbitl.  These are useless, as they aren't
exported from the shared libraries (only the __signbit* functions are
exported, to be used by the type-generic signbit macro with older
compilers).  This patch removes the useless aliases.

Tested (compilation only) with build-many-glibcs.py for
sparc64-linux-gnu and sparcv9-linux-gnu.

	* sysdeps/sparc/sparc32/fpu/s_signbit.S (signbit): Remove alias.
	(signbitf): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S (signbit):
	Likewise.
	(signbitl): Likewise.
	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S (signbitf):
	Likewise.
	* sysdeps/sparc/sparc64/fpu/s_signbit.S (signbit): Likewise.
	(signbitl): Likewise.
	* sysdeps/sparc/sparc64/fpu/s_signbitf.S (signbitf): Likewise.

Author: jsm28

ChangeLog

@@ -1,3 +1,16 @@
+2017-05-12  Joseph Myers  <[email protected]>
+
+	* sysdeps/sparc/sparc32/fpu/s_signbit.S (signbit): Remove alias.
+	(signbitf): Likewise.
+	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S (signbit):
+	Likewise.
+	(signbitl): Likewise.
+	* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S (signbitf):
+	Likewise.
+	* sysdeps/sparc/sparc64/fpu/s_signbit.S (signbit): Likewise.
+	(signbitl): Likewise.
+	* sysdeps/sparc/sparc64/fpu/s_signbitf.S (signbitf): Likewise.
+
 2017-05-12  Florian Weimer  <[email protected]>
 
 	[BZ #21386]

sysdeps/sparc/sparc32/fpu/s_signbit.S

@@ -22,11 +22,9 @@ ENTRY (__signbit)
 	retl
 	 srl	%o0, 31, %o0
 END (__signbit)
-weak_alias (__signbit, signbit)
 
 /* On 32-bit the double version will also always work for
    single-precision since in both cases the word with the
    sign bit in it is passed always in register %o0.  */
 strong_alias (__signbit, __signbitf)
 hidden_def (__signbitf)
-weak_alias (__signbitf, signbitf)

sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S

@@ -2,14 +2,11 @@
 
 SPARC_ASM_VIS3_IFUNC(signbit)
 
-weak_alias (__signbit, signbit)
-
 /* On 64-bit the double version will also always work for
    long-double-precision since in both cases the word with the
    sign bit in it is passed always in register %f0.  */
 strong_alias (__signbit, __signbitl)
 hidden_def (__signbitl)
-weak_alias (__signbitl, signbitl)
 
 # undef weak_alias
 # define weak_alias(a, b)

sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S

@@ -2,8 +2,6 @@
 
 SPARC_ASM_VIS3_IFUNC(signbitf)
 
-weak_alias (__signbitf, signbitf)
-
 # undef weak_alias
 # define weak_alias(a, b)
 

sysdeps/sparc/sparc64/fpu/s_signbit.S

@@ -24,11 +24,9 @@ ENTRY (__signbit)
 	retl
 	 srl	%o0, 31, %o0
 END (__signbit)
-weak_alias (__signbit, signbit)
 
 /* On 64-bit the double version will also always work for
    long-double-precision since in both cases the word with the
    sign bit in it is passed always in register %f0.  */
 strong_alias (__signbit, __signbitl)
 hidden_def (__signbitl)
-weak_alias (__signbitl, signbitl)

sysdeps/sparc/sparc64/fpu/s_signbitf.S

@@ -24,4 +24,3 @@ ENTRY (__signbitf)
 	retl
 	 srl	%o0, 31, %o0
 END (__signbitf)
-weak_alias (__signbitf, signbitf)