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authorDavid S. Miller <davem@davemloft.net>2012-03-14 16:29:47 -0700
committerDavid S. Miller <davem@davemloft.net>2012-03-14 16:43:09 -0700
commiteae47a361821b60ad4274feae1d6e3fa4572cd0a (patch)
tree00abf7a0cd073fc519d074d18f1163a8f47ee0c2 /ChangeLog
parent7bd951ff59e0443ca1bdd5b0ea58f6f4f641ac73 (diff)
downloadglibc-eae47a361821b60ad4274feae1d6e3fa4572cd0a.tar.gz
Add framework for using sparc VIS3 instructions, use it for copysign/signbit.
* sysdeps/sparc/configure.in: New file. * sysdeps/sparc/configure: Generate. * configure.in (libc_cv_sparc_as_vis3): Substitute. * configure: Regenerate. * config.h.in (HAVE_AS_VIS3_SUPPORT): New. * config.make.in (have-as-vis3): New. * sysdeps/sparc/sparc32/sparcv9/Makefile (ASFLAGS-*): If VIS3 is available use -Av9d instead of -Av9a. * sysdeps/sparc/sparc64/Makefile: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: New file. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign-vis3.S: New file. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S: New file. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf-vis3.S: New file. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S: New file. * sysdeps/sparc/sparc64/fpu/multiarch/Makefile: New file. * sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-vis3.S: New file. * sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: New file. * sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-vis3.S: New file. * sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: New file.
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2012-03-14 David S. Miller <davem@davemloft.net>
+ * sysdeps/sparc/configure.in: New file.
+ * sysdeps/sparc/configure: Generate.
+ * configure.in (libc_cv_sparc_as_vis3): Substitute.
+ * configure: Regenerate.
+ * config.h.in (HAVE_AS_VIS3_SUPPORT): New.
+ * config.make.in (have-as-vis3): New.
+ * sysdeps/sparc/sparc32/sparcv9/Makefile (ASFLAGS-*): If VIS3 is
+ available use -Av9d instead of -Av9a.
+ * sysdeps/sparc/sparc64/Makefile: Likewise.
+ * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: New file.
+ * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign-vis3.S: New file.
+ * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S: New file.
+ * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf-vis3.S: New file.
+ * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S: New file.
+ * sysdeps/sparc/sparc64/fpu/multiarch/Makefile: New file.
+ * sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-vis3.S: New file.
+ * sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: New file.
+ * sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-vis3.S: New file.
+ * sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: New file.
+
* sysdeps/sparc/sparc64/fpu/s_copysign.S (__copysign): Use fzeros/fnegs
to load 0x80000000 into a float register instead of using the stack.
* sysdeps/sparc/sparc64/fpu/s_copysignf.S (__copysignf): Likewise.