Ensure random generator functions get inlined

Author: GabrielMajeri

examples/aobench/src/random.rs

@@ -91,7 +91,7 @@ pub mod vector {
             RngT(z0, z1, z2, z3)
         }
 
-        #[inline]
+        #[inline(always)]
         pub fn gen_u32(&mut self) -> u32xN {
             let mut b = ((self.0 << 6) ^ self.0) >> 13;
             self.0 = ((self.0 & u32xN::splat(4_294_967_294)) << 18) ^ b;
@@ -104,7 +104,7 @@ pub mod vector {
             self.0 ^ self.1 ^ self.2 ^ self.3
         }
 
-        #[inline]
+        #[inline(always)]
         pub fn gen(&mut self) -> f32xN {
             let mut v = self.gen_u32();
             v &= u32xN::splat((1_u32 << 23) - 1);
@@ -121,7 +121,7 @@ pub mod vector {
     }
 
     impl RngH {
-        #[inline]
+        #[inline(always)]
         pub fn gen(&mut self) -> f32xN {
             unsafe { (*self.rng.get()).gen() }
         }

examples/aobench/src/scene/random.rs

@@ -55,15 +55,19 @@ impl Default for Random {
 
 impl Scene for Random {
     const NAO_SAMPLES: usize = 8;
+    #[inline(always)]
     fn rand(&mut self) -> f32 {
         ::random::scalar::thread_rng().gen()
     }
+    #[inline(always)]
     fn plane(&self) -> &Plane {
         &self.plane
     }
+    #[inline(always)]
     fn spheres(&self) -> &[Sphere] {
         &self.spheres
     }
+    #[inline(always)]
     fn rand_f32xN(&mut self) -> (f32xN, f32xN) {
         let mut rng = ::random::vector::thread_rng();
         (rng.gen(), rng.gen())