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authorMathias Fröhlich <mathias.froehlich@web.de>2016-08-02 08:46:04 +0200
committerMathias Fröhlich <Mathias.Froehlich@gmx.net>2016-08-09 21:20:46 +0200
commit027cbf00f248bda325521db8f56a3718898da46b (patch)
tree5e5cce2c268223053e4504f921c5143277f51b3c /src/gallium/auxiliary
parente4cb3af524cb02ec7cd23a64da033cfb7193a3cb (diff)
util: Move _mesa_fsl/util_last_bit into util/bitscan.h
As requested with the initial creation of util/bitscan.h now move other bitscan related functions into util. v2: Split into two patches. Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de> Tested-by: Brian Paul <brianp@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/util/u_math.h64
1 files changed, 0 insertions, 64 deletions
diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h
index 1661e63dbdd..a9232711bf1 100644
--- a/src/gallium/auxiliary/util/u_math.h
+++ b/src/gallium/auxiliary/util/u_math.h
@@ -347,70 +347,6 @@ util_half_inf_sign(int16_t x)
/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit(unsigned u)
-{
-#if defined(HAVE___BUILTIN_CLZ)
- return u == 0 ? 0 : 32 - __builtin_clz(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit set in a word. The least significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit64(uint64_t u)
-{
-#if defined(HAVE___BUILTIN_CLZLL)
- return u == 0 ? 0 : 64 - __builtin_clzll(u);
-#else
- unsigned r = 0;
- while (u) {
- r++;
- u >>= 1;
- }
- return r;
-#endif
-}
-
-/**
- * Find last bit in a word that does not match the sign bit. The least
- * significant bit is 1.
- * Return 0 if no bits are set.
- */
-static inline unsigned
-util_last_bit_signed(int i)
-{
- if (i >= 0)
- return util_last_bit(i);
- else
- return util_last_bit(~(unsigned)i);
-}
-
-/* Returns a bitfield in which the first count bits starting at start are
- * set.
- */
-static inline unsigned
-u_bit_consecutive(unsigned start, unsigned count)
-{
- assert(start + count <= 32);
- if (count == 32)
- return ~0;
- return ((1u << count) - 1) << start;
-}
-
-/**
* Return float bits.
*/
static inline unsigned