util: remove util_is_pot in favor of util_is_power_of_two

The function was duplicated.

src/gallium/auxiliary/gallivm/lp_bld_arit.c

@@ -538,7 +538,7 @@ lp_build_mul_imm(struct lp_build_context *bld,
    if(b == 2 && bld->type.floating)
       return lp_build_add(bld, a, a);
 
-   if(util_is_pot(b)) {
+   if(util_is_power_of_two(b)) {
       unsigned shift = ffs(b) - 1;
 
       if(bld->type.floating) {

src/gallium/auxiliary/gallivm/lp_bld_debug.c

@@ -46,7 +46,7 @@
 boolean
 lp_check_alignment(const void *ptr, unsigned alignment)
 {
-   assert(util_is_pot(alignment));
+   assert(util_is_power_of_two(alignment));
    return ((uintptr_t)ptr & (alignment - 1)) == 0;
 }
 

src/gallium/auxiliary/gallivm/lp_bld_format_aos.c

@@ -388,7 +388,7 @@ lp_build_fetch_rgba_aos(LLVMBuilderRef builder,
 
    if (format_matches_type(format_desc, type) &&
        format_desc->block.bits <= type.width * 4 &&
-       util_is_pot(format_desc->block.bits)) {
+       util_is_power_of_two(format_desc->block.bits)) {
       LLVMValueRef packed;
 
       /*
@@ -416,7 +416,7 @@ lp_build_fetch_rgba_aos(LLVMBuilderRef builder,
         format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) &&
        format_desc->block.width == 1 &&
        format_desc->block.height == 1 &&
-       util_is_pot(format_desc->block.bits) &&
+       util_is_power_of_two(format_desc->block.bits) &&
        format_desc->block.bits <= 32 &&
        format_desc->is_bitmask &&
        !format_desc->is_mixed &&

src/gallium/auxiliary/gallivm/lp_bld_sample.c

@@ -82,9 +82,9 @@ lp_sampler_static_state(struct lp_sampler_static_state *state,
    state->swizzle_a         = view->swizzle_a;
 
    state->target            = texture->target;
-   state->pot_width         = util_is_pot(texture->width0);
-   state->pot_height        = util_is_pot(texture->height0);
-   state->pot_depth         = util_is_pot(texture->depth0);
+   state->pot_width         = util_is_power_of_two(texture->width0);
+   state->pot_height        = util_is_power_of_two(texture->height0);
+   state->pot_depth         = util_is_power_of_two(texture->depth0);
 
    state->wrap_s            = sampler->wrap_s;
    state->wrap_t            = sampler->wrap_t;

src/gallium/auxiliary/util/u_math.h

@@ -360,16 +360,6 @@ util_is_inf_or_nan(float x)
 }
 
 
-/**
- * Test whether x is a power of two.
- */
-static INLINE boolean
-util_is_pot(unsigned x)
-{
-   return (x & (x - 1)) == 0;
-}
-
-
 /**
  * Find first bit set in word.  Least significant bit is 1.
  * Return 0 if no bits set.

src/gallium/drivers/galahad/glhd_screen.c

@@ -140,7 +140,7 @@ galahad_screen_resource_create(struct pipe_screen *_screen,
 
    if(templat->target != PIPE_TEXTURE_RECT && templat->target != PIPE_BUFFER && !screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES))
    {
-      if(!util_is_pot(templat->width0) || !util_is_pot(templat->height0))
+      if(!util_is_power_of_two(templat->width0) || !util_is_power_of_two(templat->height0))
          glhd_warn("Requested NPOT (%ux%u) non-rectangle texture without NPOT support", templat->width0, templat->height0);
    }