Commit Graph

11 Commits

Author SHA1 Message Date
Bill Hollings
ec054dad7f MSL: Support synthetic functions in function constants.
Emit synthetic functions before function constants.
Support use of spvQuantizeToF16() in function constants for numerical
behavior consistency with the op code.
Ensure subnormal results from OpQuantizeToF16 are flushed to zero per SPIR-V spec.

Adjust SPIRV-Cross unit test reference shaders to accommodate these changes.
Any MSL reference shader that inclues a synthetic function is affected,
since the location it is emitted has changed.
2021-09-28 19:10:16 -04:00
Hans-Kristian Arntzen
d1479f871a MSL: Do not generate UnsafeArray<> for any array inside buffer objects.
This avoids a lot of huge code changes.
Arrays generally cannot be copied in and out of buffers, at least no
compiler frontend seems to do it.

Also avoids a lot of issues surrounding packed vectors and matrices.
2019-10-24 12:22:30 +02:00
Lukas Hermanns
7ad0a84778 Updates for pull request #1162 2019-09-24 14:35:25 -04:00
Lukas Hermanns
cb3ecb9e1b Updated reference Metal shaders. 2019-09-17 15:11:19 -04:00
Mark Satterthwaite
564cb3c08d Update the Metal shaders to account for changes in the shader compilation. 2019-09-11 15:06:05 -04:00
Thomas Roughton
91b2f34a3d Update tests to account for all non-entry-point functions being inlined 2019-08-30 09:39:06 +12:00
Hans-Kristian Arntzen
e2c95bdcbc MSL: Rewrite how resource indices are fallback-assigned.
We used to use the Binding decoration for this, but this method is
hopelessly broken. If no explicit MSL resource remapping exists, we
remap automatically in a manner which should always "just work".
2019-06-21 12:54:08 +02:00
Chip Davis
6757ef8512 Use bitcast_to_builtin_load() instead of hacking to_expression().
This only affects the builtin when it is used, and not when it's passed
to a function. It's a lot cleaner than the way I was doing it before.

Remove the `to_expression()` hack.
2018-09-11 11:15:17 -05:00
Chip Davis
acb3fac747 Opt for a simple value cast in lieu of a bitcast. 2018-09-10 14:05:36 -05:00
Chip Davis
f7dad9da66 MSL: Cast uses of builtin vectors to their declared SPIR-V type.
In SPIR-V, builtin integral vectors can be either signed or unsigned,
but in MSL they're always unsigned. Unfortunately, the MSL spec forbids
implicit conversions between vector types--even if the corresponding
scalar types would implicitly convert. If you try, the result is a
cryptic error message such as:

```
program_source:37:60: error: cannot convert between vector values of different size ('int4' (aka 'vector_int4') and 'vector_uint4' (vector of 4 'unsigned int' values))
            float4 r3 = as_type<float4>((as_type<int4>(r0) * gl_LocalInvocationID.xyyy) + as_type<int4>(r2));
                                         ~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~
```

Therefore, uses of these builtins must be explicitly cast, since the
rest of the binary likely assumes that the builtin is of its declared
type.
2018-09-08 21:17:54 -05:00
Chip Davis
680ef9d773 MSL: Correct number of words to skip in OpImageWrite.
The length field in `Instruction` doesn't include the initial
opcode/length word. We only need to skip three words instead of four.
2018-09-05 10:02:25 -05:00