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Enable __builtin_* on clang 

We'll see which old clang versions this breaks...
This commit is contained in:
Behdad Esfahbod 2018-12-17 20:34:51 -05:00
parent 8d2d410256
commit 6befa75cdf
1 changed files with 3 additions and 3 deletions
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6
src/hb-dsalgs.hh
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@ -46,7 +46,7 @@ template <typename T>
static inline HB_CONST_FUNC unsigned int
hb_popcount (T v)
{
#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)) && defined(__OPTIMIZE__)
#if (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__)
if (sizeof (T) <= sizeof (unsigned int))
return __builtin_popcount (v);
@ -89,7 +89,7 @@ hb_bit_storage (T v)
{
if (unlikely (!v)) return 0;
#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(__OPTIMIZE__)
#if (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__)
if (sizeof (T) <= sizeof (unsigned int))
return sizeof (unsigned int) * 8 - __builtin_clz (v);
@ -163,7 +163,7 @@ hb_ctz (T v)
{
if (unlikely (!v)) return 0;
#if defined(__GNUC__) && (__GNUC__ >= 4) && defined(__OPTIMIZE__)
#if (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__)
if (sizeof (T) <= sizeof (unsigned int))
return __builtin_ctz (v);