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https://github.com/crosstool-ng/crosstool-ng.git
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86c2982568
This refreshes the line numbers, removes any fuzz (which would make any future forward ports easier) and standardizes the patch/file headers (which makes them easier to read). Signed-off-by: Alexey Neyman <stilor@att.net>
124 lines
3.3 KiB
Diff
124 lines
3.3 KiB
Diff
# commit 603e84104cdc709c8e7dcbac54b9a585bf8dff78
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# Author: Alan Modra <amodra@gmail.com>
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# Date: Sat Aug 17 18:29:43 2013 +0930
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#
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# PowerPC floating point little-endian [9 of 15]
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# http://sourceware.org/ml/libc-alpha/2013-07/msg00200.html
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#
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# This works around the fact that vsx is disabled in current
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# little-endian gcc. Also, float constants take 4 bytes in memory
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# vs. 16 bytes for vector constants, and we don't need to write one lot
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# of masks for double (register format) and another for float (mem
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# format).
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#
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# * sysdeps/powerpc/fpu/s_float_bitwise.h (__float_and_test28): Don't
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# use vector int constants.
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# (__float_and_test24, __float_and8, __float_get_exp): Likewise.
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#
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---
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# sysdeps/powerpc/fpu/s_float_bitwise.h | 54 ++++++++++++++++++----------------
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# 1 file changed, 29 insertions(+), 25 deletions(-)
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#
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--- a/sysdeps/powerpc/fpu/s_float_bitwise.h
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+++ b/sysdeps/powerpc/fpu/s_float_bitwise.h
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@@ -23,18 +23,19 @@
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#include <math_private.h>
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/* Returns (int)(num & 0x7FFFFFF0 == value) */
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-static inline
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-int __float_and_test28 (float num, float value)
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+static inline int
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+__float_and_test28 (float num, float value)
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{
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float ret;
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#ifdef _ARCH_PWR7
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- vector int mask = (vector int) {
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- 0x7ffffffe, 0x00000000, 0x00000000, 0x0000000
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- };
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+ union {
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+ int i;
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+ float f;
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+ } mask = { .i = 0x7ffffff0 };
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__asm__ (
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- /* the 'f' constrain is use on mask because we just need
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+ /* the 'f' constraint is used on mask because we just need
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* to compare floats, not full vector */
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- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask)
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+ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f)
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);
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#else
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int32_t inum;
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@@ -46,16 +47,17 @@
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}
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/* Returns (int)(num & 0x7FFFFF00 == value) */
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-static inline
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-int __float_and_test24 (float num, float value)
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+static inline int
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+__float_and_test24 (float num, float value)
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{
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float ret;
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#ifdef _ARCH_PWR7
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- vector int mask = (vector int) {
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- 0x7fffffe0, 0x00000000, 0x00000000, 0x0000000
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- };
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+ union {
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+ int i;
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+ float f;
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+ } mask = { .i = 0x7fffff00 };
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__asm__ (
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- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask)
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+ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f)
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);
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#else
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int32_t inum;
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@@ -67,16 +69,17 @@
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}
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/* Returns (float)(num & 0x7F800000) */
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-static inline
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-float __float_and8 (float num)
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+static inline float
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+__float_and8 (float num)
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{
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float ret;
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#ifdef _ARCH_PWR7
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- vector int mask = (vector int) {
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- 0x7ff00000, 0x00000000, 0x00000000, 0x00000000
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- };
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+ union {
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+ int i;
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+ float f;
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+ } mask = { .i = 0x7f800000 };
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__asm__ (
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- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask)
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+ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f)
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);
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#else
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int32_t inum;
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@@ -88,17 +91,18 @@
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}
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/* Returns ((int32_t)(num & 0x7F800000) >> 23) */
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-static inline
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-int32_t __float_get_exp (float num)
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+static inline int32_t
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+__float_get_exp (float num)
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{
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int32_t inum;
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#ifdef _ARCH_PWR7
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float ret;
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- vector int mask = (vector int) {
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- 0x7ff00000, 0x00000000, 0x00000000, 0x00000000
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- };
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+ union {
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+ int i;
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+ float f;
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+ } mask = { .i = 0x7f800000 };
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__asm__ (
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- "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask)
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+ "xxland %x0,%x1,%x2" : "=f" (ret) : "f" (num), "f" (mask.f)
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);
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GET_FLOAT_WORD(inum, ret);
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#else
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