diff options
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/glsl/float64.glsl | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/src/compiler/glsl/float64.glsl b/src/compiler/glsl/float64.glsl index 0433d925a39..5f201c8f725 100644 --- a/src/compiler/glsl/float64.glsl +++ b/src/compiler/glsl/float64.glsl @@ -1299,43 +1299,35 @@ __fp64_to_fp32(uint64_t __a) float __uint64_to_fp32(uint64_t __a) { - uint zFrac = 0u; uvec2 aFrac = unpackUint2x32(__a); - int shiftCount = __countLeadingZeros32(mix(aFrac.y, aFrac.x, aFrac.y == 0u)); - shiftCount -= mix(40, 8, aFrac.y == 0u); + int shiftCount = mix(__countLeadingZeros32(aFrac.y) - 33, + __countLeadingZeros32(aFrac.x) - 1, + aFrac.y == 0u); - if (0 <= shiftCount) { + if (0 <= shiftCount) __shortShift64Left(aFrac.y, aFrac.x, shiftCount, aFrac.y, aFrac.x); - bool is_zero = (aFrac.y | aFrac.x) == 0u; - return mix(__packFloat32(0u, 0x95 - shiftCount, aFrac.x), 0, is_zero); - } + else + __shift64RightJamming(aFrac.y, aFrac.x, -shiftCount, aFrac.y, aFrac.x); - shiftCount += 7; - __shift64RightJamming(aFrac.y, aFrac.x, -shiftCount, aFrac.y, aFrac.x); - zFrac = mix(aFrac.x<<shiftCount, aFrac.x, shiftCount < 0); - return __roundAndPackFloat32(0u, 0x9C - shiftCount, zFrac); + return __roundAndPackFloat32(0u, 0x9C - shiftCount, aFrac.x); } float __int64_to_fp32(int64_t __a) { - uint zFrac = 0u; uint aSign = uint(__a < 0); uint64_t absA = mix(uint64_t(__a), uint64_t(-__a), __a < 0); uvec2 aFrac = unpackUint2x32(absA); - int shiftCount = __countLeadingZeros32(mix(aFrac.y, aFrac.x, aFrac.y == 0u)); - shiftCount -= mix(40, 8, aFrac.y == 0u); + int shiftCount = mix(__countLeadingZeros32(aFrac.y) - 33, + __countLeadingZeros32(aFrac.x) - 1, + aFrac.y == 0u); - if (0 <= shiftCount) { + if (0 <= shiftCount) __shortShift64Left(aFrac.y, aFrac.x, shiftCount, aFrac.y, aFrac.x); - bool is_zero = (aFrac.y | aFrac.x) == 0u; - return mix(__packFloat32(aSign, 0x95 - shiftCount, aFrac.x), 0, absA == 0u); - } + else + __shift64RightJamming(aFrac.y, aFrac.x, -shiftCount, aFrac.y, aFrac.x); - shiftCount += 7; - __shift64RightJamming(aFrac.y, aFrac.x, -shiftCount, aFrac.y, aFrac.x); - zFrac = mix(aFrac.x<<shiftCount, aFrac.x, shiftCount < 0); - return __roundAndPackFloat32(aSign, 0x9C - shiftCount, zFrac); + return __roundAndPackFloat32(aSign, 0x9C - shiftCount, aFrac.x); } /* Returns the result of converting the single-precision floating-point value |