diff options
Diffstat (limited to 'packages/glibc/2.17/0036-glibc-ppc64le-14.patch')
-rw-r--r-- | packages/glibc/2.17/0036-glibc-ppc64le-14.patch | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/packages/glibc/2.17/0036-glibc-ppc64le-14.patch b/packages/glibc/2.17/0036-glibc-ppc64le-14.patch new file mode 100644 index 0000000..9025fd7 --- /dev/null +++ b/packages/glibc/2.17/0036-glibc-ppc64le-14.patch @@ -0,0 +1,120 @@ +# commit 603e84104cdc709c8e7dcbac54b9a585bf8dff78 +# Author: Alan Modra <amodra@gmail.com> +# Date: Sat Aug 17 18:29:43 2013 +0930 +# +# PowerPC floating point little-endian [9 of 15] +# http://sourceware.org/ml/libc-alpha/2013-07/msg00200.html +# +# This works around the fact that vsx is disabled in current +# little-endian gcc. Also, float constants take 4 bytes in memory +# vs. 16 bytes for vector constants, and we don't need to write one lot +# of masks for double (register format) and another for float (mem +# format). +# +# * sysdeps/powerpc/fpu/s_float_bitwise.h (__float_and_test28): Don't +# use vector int constants. +# (__float_and_test24, __float_and8, __float_get_exp): Likewise. +# +diff -urN glibc-2.17-c758a686/sysdeps/powerpc/fpu/s_float_bitwise.h glibc-2.17-c758a686/sysdeps/powerpc/fpu/s_float_bitwise.h +--- glibc-2.17-c758a686/sysdeps/powerpc/fpu/s_float_bitwise.h 2014-05-27 22:37:18.000000000 -0500 ++++ glibc-2.17-c758a686/sysdeps/powerpc/fpu/s_float_bitwise.h 2014-05-27 22:37:20.000000000 -0500 +@@ -23,18 +23,19 @@ + #include <math_private.h> + + /* Returns (int)(num & 0x7FFFFFF0 == value) */ +-static inline +-int __float_and_test28 (float num, float value) ++static inline int ++__float_and_test28 (float num, float value) + { + float ret; + #ifdef _ARCH_PWR7 +- vector int mask = (vector int) { +- 0x7ffffffe, 0x00000000, 0x00000000, 0x0000000 +- }; ++ union { ++ int i; ++ float f; ++ } mask = { .i = 0x7ffffff0 }; + __asm__ ( +- /* the 'f' constrain is use on mask because we just need ++ /* the 'f' constraint is used on mask because we just need + * to compare floats, not full vector */ +- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask) ++ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f) + ); + #else + int32_t inum; +@@ -46,16 +47,17 @@ + } + + /* Returns (int)(num & 0x7FFFFF00 == value) */ +-static inline +-int __float_and_test24 (float num, float value) ++static inline int ++__float_and_test24 (float num, float value) + { + float ret; + #ifdef _ARCH_PWR7 +- vector int mask = (vector int) { +- 0x7fffffe0, 0x00000000, 0x00000000, 0x0000000 +- }; ++ union { ++ int i; ++ float f; ++ } mask = { .i = 0x7fffff00 }; + __asm__ ( +- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask) ++ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f) + ); + #else + int32_t inum; +@@ -67,16 +69,17 @@ + } + + /* Returns (float)(num & 0x7F800000) */ +-static inline +-float __float_and8 (float num) ++static inline float ++__float_and8 (float num) + { + float ret; + #ifdef _ARCH_PWR7 +- vector int mask = (vector int) { +- 0x7ff00000, 0x00000000, 0x00000000, 0x00000000 +- }; ++ union { ++ int i; ++ float f; ++ } mask = { .i = 0x7f800000 }; + __asm__ ( +- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask) ++ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f) + ); + #else + int32_t inum; +@@ -88,17 +91,18 @@ + } + + /* Returns ((int32_t)(num & 0x7F800000) >> 23) */ +-static inline +-int32_t __float_get_exp (float num) ++static inline int32_t ++__float_get_exp (float num) + { + int32_t inum; + #ifdef _ARCH_PWR7 + float ret; +- vector int mask = (vector int) { +- 0x7ff00000, 0x00000000, 0x00000000, 0x00000000 +- }; ++ union { ++ int i; ++ float f; ++ } mask = { .i = 0x7f800000 }; + __asm__ ( +- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask) ++ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f) + ); + GET_FLOAT_WORD(inum, ret); + #else |