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Tiny cleanups, doc update re int8/16 performance

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This commit is contained in:
Matt Pharr
2011-07-21 16:04:16 +01:00
parent 8ef3df57c5
commit 165f90357f
3 changed files with 13 additions and 3 deletions
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4
stdlib.ispc
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@@ -2363,7 +2363,7 @@ static inline uniform float half_to_float(uniform unsigned int16 h) {
uniform unsigned int32 hs = h & (int32)0x8000u; // Pick off sign bit
uniform unsigned int32 he = h & (int32)0x7C00u; // Pick off exponent bits
uniform unsigned int32 hm = h & (int32)0x03FFu; // Pick off mantissa bits
cif (he == 0) {
if (he == 0) {
// Denormal will convert to normalized
uniform int e = -1;
// The following loop figures out how much extra to adjust the exponent
@@ -2485,7 +2485,7 @@ static inline uniform int16 float_to_half(uniform float f) {
ret = (xs >> 16);
}
else {
cif (xe == 0x7F800000u) {
if (xe == 0x7F800000u) {
// Inf or NaN (all the exponent bits are set)
if (xm == 0)
// Zero mantissa -> signed infinity