diff options
| author | Matt Turner <[email protected]> | 2018-10-30 21:48:01 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2019-01-09 16:42:40 -0800 |
| commit | 92ac2169fb015b7bb0b8e5fc2c99131e3c652cbb (patch) | |
| tree | b8f47c2c03ade96dc5c43c0009f1581a285c7274 /src/compiler/glsl | |
| parent | 3db81b5d9f7f6e475462ca4f9306678bcc9d495c (diff) | |
glsl: Add "built-in" functions to do ffma(fp64)
Definitely not actually a fused-multiply add.
Reviewed-by: Elie Tournier <[email protected]>
Diffstat (limited to 'src/compiler/glsl')
| -rw-r--r-- | src/compiler/glsl/float64.glsl | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/compiler/glsl/float64.glsl b/src/compiler/glsl/float64.glsl index e09655e5055..1a434b1fd59 100644 --- a/src/compiler/glsl/float64.glsl +++ b/src/compiler/glsl/float64.glsl @@ -798,6 +798,12 @@ __fmul64(uint64_t a, uint64_t b) return __roundAndPackFloat64(zSign, zExp, zFrac0, zFrac1, zFrac2); } +uint64_t +__ffma64(uint64_t a, uint64_t b, uint64_t c) +{ + return __fadd64(__fmul64(a, b), c); +} + /* Shifts the 64-bit value formed by concatenating `a0' and `a1' right by the * number of bits given in `count'. Any bits shifted off are lost. The value * of `count' can be arbitrarily large; in particular, if `count' is greater |