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util: Do not use __builtin_clrsb with Intel C++ Compiler.

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This patch fixes this build error with icc 14.0.2.

In file included from state_tracker/st_glsl_to_tgsi.cpp(63):
../../src/gallium/auxiliary/util/u_math.h(583): error: identifier "__builtin_clrsb" is undefined
     return 31 - __builtin_clrsb(i);
                 ^

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
This commit is contained in:
Vinson Lee
2014-05-30 19:40:26 -07:00
parent 90b5747856
commit 83bba8f146
1 changed files with 1 additions and 1 deletions
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src/gallium/auxiliary/util/u_math.h
+1 -1
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@@ -579,7 +579,7 @@ static INLINE unsigned util_last_bit(unsigned u)
*/
static INLINE unsigned util_last_bit_signed(int i)
{
#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407)
#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407) && !defined(__INTEL_COMPILER)
return 31 - __builtin_clrsb(i);
#else
if (i >= 0)