util: Move util_is_power_of_two to bitscan.h and rename to util_is_power_of_two_or_zero

The new name make the zero-input behavior more obvious.  The next
patch adds a new function with different zero-input behavior.

Signed-off-by: Ian Romanick <[email protected]>
Suggested-by: Matt Turner <[email protected]>
Reviewed-by: Alejandro Piñeiro <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 3d454c3db14..fdcc909a3d5 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -1976,7 +1976,7 @@ struct cplx_align {
 static void
 cplx_align_assert_sane(struct cplx_align a)
 {
-   assert(a.mul > 0 && util_is_power_of_two(a.mul));
+   assert(a.mul > 0 && util_is_power_of_two_or_zero(a.mul));
    assert(a.offset < a.mul);
 }
 
@@ -2028,7 +2028,7 @@ static void
 mark_uniform_slots_read(struct uniform_slot_info *slots,
                         unsigned num_slots, unsigned alignment)
 {
-   assert(alignment > 0 && util_is_power_of_two(alignment));
+   assert(alignment > 0 && util_is_power_of_two_or_zero(alignment));
    assert(alignment <= CPLX_ALIGN_MAX_MUL);
 
    /* We can't align a slot to anything less than the slot size */