VIXL Release 1.8
Refer to the README.md and LICENCE files for details.
diff --git a/src/utils.h b/src/utils.h
index b440626..6b9b72f 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -1,4 +1,4 @@
-// Copyright 2013, ARM Limited
+// Copyright 2015, ARM Limited
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
@@ -104,6 +104,18 @@
float rawbits_to_float(uint32_t bits);
double rawbits_to_double(uint64_t bits);
+uint32_t float_sign(float val);
+uint32_t float_exp(float val);
+uint32_t float_mantissa(float val);
+uint32_t double_sign(double val);
+uint32_t double_exp(double val);
+uint64_t double_mantissa(double val);
+
+float float_pack(uint32_t sign, uint32_t exp, uint32_t mantissa);
+double double_pack(uint64_t sign, uint64_t exp, uint64_t mantissa);
+
+// An fpclassify() function for 16-bit half-precision floats.
+int float16classify(float16 value);
// NaN tests.
inline bool IsSignallingNaN(double num) {
@@ -126,6 +138,13 @@
}
+inline bool IsSignallingNaN(float16 num) {
+ const uint16_t kFP16QuietNaNMask = 0x0200;
+ return (float16classify(num) == FP_NAN) &&
+ ((num & kFP16QuietNaNMask) == 0);
+}
+
+
template <typename T>
inline bool IsQuietNaN(T num) {
return isnan(num) && !IsSignallingNaN(num);
@@ -164,6 +183,7 @@
int CountTrailingZeros(uint64_t value, int width);
int CountSetBits(uint64_t value, int width);
uint64_t LowestSetBit(uint64_t value);
+int HighestSetBitPosition(uint64_t value);
bool IsPowerOf2(int64_t value);
unsigned CountClearHalfWords(uint64_t imm, unsigned reg_size);