Commit Graph

132 Commits

Author SHA1 Message Date
Hans-Kristian Arntzen
8c632da461 MSL: Use correct alignment rule for whole structs.
Structs are aligned as you would expect in MSL (maximum member
alignment), and it is not minimum 16 bytes like in std140.

Also rename the dummy "pad" members to a reserved naming scheme.
2019-01-28 15:20:30 +01:00
Hans-Kristian Arntzen
437fc87a89 MSL: Deal with resource name aliasing.
Apparently we didn't use those yet. MSL seems to be able to alias struct
types and variable types to a degree, so that's why it has escaped
testing until now.
2019-01-18 16:27:57 +01:00
Hans-Kristian Arntzen
3aa08f764e MSL: Fix image load/store for short vectors.
Same fixes as for GLSL.
2019-01-17 14:54:29 +01:00
Hans-Kristian Arntzen
432aaed737 Need to know the original packed type when unpacking loads. 2019-01-17 11:39:46 +01:00
Hans-Kristian Arntzen
de7e5ccd8b Refactor out packed expressions to extended decorations.
Can't safely just cast to the original enum without lots of hacks.
2019-01-17 11:28:51 +01:00
Hans-Kristian Arntzen
f4026a5618 Refactor access_chain_internal to be more readable from callsite. 2019-01-17 10:30:13 +01:00
Hans-Kristian Arntzen
15b52bee48 Deal with packing/unpacking on store.
Still a bit buggy, since we cannot deduce between float2[] and
packed_float2. Need a deeper refactor to plumb this through ...
2019-01-17 10:06:23 +01:00
Hans-Kristian Arntzen
d92de00cc1 Rewrite how IDs are iterated over.
This is a fairly fundamental change on how IDs are handled.
It serves many purposes:

- Improve performance. We only need to iterate over IDs which are
  relevant at any one time.
- Makes sure we iterate through IDs in SPIR-V module declaration order
  rather than ID space. IDs don't have to be monotonically increasing,
  which was an assumption SPIRV-Cross used to have. It has apparently
  never been a problem until now.
- Support LUTs of structs. We do this by interleaving declaration of
  constants and struct types in SPIR-V module order.

To support this, the ParsedIR interface needed to change slightly.
Before setting any ID with variant_set<T> we let ParsedIR know
that an ID with a specific type has been added. The surface for change
should be minimal.

ParsedIR will maintain a per-type list of IDs which the cross-compiler
will need to consider for later.

Instead of looping over ir.ids[] (which can be extremely large), we loop
over types now, using:

ir.for_each_typed_id<SPIRVariable>([&](uint32_t id, SPIRVariable &var) {
	handle_variable(var);
});

Now we make sure that we're never looking at irrelevant types.
2019-01-10 12:52:56 +01:00
Chip Davis
d6aa911156 Flush all variables after storing through a variable pointer.
Since we can't know which variable was modified, we therefore have to
conservatively assume that any variable might have been modified.
2019-01-08 15:16:33 -06:00
Chip Davis
3bfb2f94d4 MSL: Support SPV_KHR_variable_pointers.
This allows shaders to declare and use pointer-type variables. Pointers
may be loaded and stored, be the result of an `OpSelect`, be passed to
and returned from functions, and even be passed as inputs to the `OpPhi`
instruction. All types of pointers may be used as variable pointers.
Variable pointers to storage buffers and workgroup memory may even be
loaded from and stored to, as though they were ordinary variables. In
addition, this enables using an interior pointer to an array as though
it were an array pointer itself using the `OpPtrAccessChain`
instruction.

This is a rather large and involved change, mostly because this is
somewhat complicated with a lot of moving parts. It's a wonder
SPIRV-Cross's output is largely unchanged. Indeed, many of these changes
are to accomplish exactly that! Perhaps the largest source of changes
was the violation of the assumption that, when emitting types, the
pointer type didn't matter.

One of the test cases added by the change doesn't optimize very well;
the output of `spirv-opt` here is invalid SPIR-V. I need to file a bug
with SPIRV-Tools about this.

I wanted to test that variable pointers to images worked too, but I
couldn't figure out how to propagate the access qualifier properly--in
MSL, it's part of the type, so getting this right is important. I've
punted on that for now.
2019-01-07 11:19:10 -06:00
Hans-Kristian Arntzen
66263d4569 Forward meta information in OpCompositeExtract.
Just like OpAccessChain we need to make use of the meta information
available to use from access_chain_internal as we can extract a packed
vector or transposed vector from a composite, not just memory load.
2019-01-07 10:43:55 +01:00
Hans-Kristian Arntzen
9728f9c1b7 Use correct block-name / other-name aliasing rules.
A block name cannot alias with any name in its own scope,
and it cannot alias with any other "global" name.

To solve this, we need to complicate the name cache updates a little bit
where we have a "primary" namespace and "secondary" namespace.
2019-01-04 15:02:54 +01:00
Chip Davis
a5882da091 Test loading from and storing to packed vectors. 2018-11-14 10:47:20 -06:00
Chip Davis
bed4918cb5 MSL: Also pack 2- and 4- element vectors when necessary.
This is also needed for `VK_KHR_relaxed_block_layout` support.
2018-11-13 17:31:47 -06:00
Chip Davis
e50eecfeeb MSL: Also pack members at unaligned offsets.
This is necessary to support `VK_KHR_relaxed_block_layout`.
2018-11-07 09:42:54 -06:00
Hans-Kristian Arntzen
6157bf3cae Add Windows support in Travis CI.
- Add new Windows support
- Use CMake/CTest instead of Make + shell scripts
- Use --parallel in CTest
- Fix CTest on Windows
- Cleanups in test_shaders.py
- Force specific commit for SPIRV-Headers
- Fix Inf/NaN odd-ball case by moving to ASM
2018-10-27 00:22:30 +02:00
Chip Davis
47089a48a0 Make the test case a lot simpler. 2018-10-04 11:26:46 -05:00
Chip Davis
9919fbbe0d MSL: Handle OpImage on OpSampledImage expressions.
I have seen this happen. The included test case is one such case.
2018-10-03 11:48:46 -05:00
Hans-Kristian Arntzen
af75ef005f Update glslang and SPIRV-Tools.
A lot of changes in spirv-opt output.
Some new invalid SPIR-V was found but most of them were not significant
for SPIRV-Cross, so just marked them as invalid.
2018-09-27 11:10:22 +02:00
Hans-Kristian Arntzen
a77880787d
Merge pull request #698 from KhronosGroup/fix-695
MSL: Support global I/O block and struct Input/Output usage.
2018-09-17 14:54:58 +02:00
Hans-Kristian Arntzen
1bbb4032c8
Merge pull request #693 from cdavis5e/msl-atomic-inc-dec
MSL: Fix OpAtomicIIncrement and OpAtomicIDecrement.
2018-09-13 16:19:27 +02:00
Hans-Kristian Arntzen
d310060f92 MSL: Support global I/O block and struct Input/Output usage.
Implement this by flattening outputs and unflattening inputs explicitly.
This allows us to pass down a single struct instead of dealing with the
insanity that would be passing down each flattened member separately.

Remove stage_uniforms_var_id.
Seems to be dead code. Naked uniforms do not exist in SPIR-V for Vulkan,
which this seems to have been intended for. It was also unused elsewhere.
2018-09-13 16:04:24 +02:00
Chip Davis
986345c754 Fix tests for changes to my last patch. 2018-09-12 09:43:12 -05:00
Hans-Kristian Arntzen
38d19821d4 MSL: Support copying array of arrays. 2018-09-12 09:54:55 +02:00
Chip Davis
41eb5c43b5 MSL: Fix OpAtomicIIncrement and OpAtomicIDecrement.
We were passing a constant '1' to `emit_atomic_func_op()`--which caused
us to refer to SPIR-V value `%1`, which is almost certainly not what we
want! What we really want is to add/subtract the literal constant '1'
to/from the memory location.
2018-09-11 17:29:54 -05:00
Hans-Kristian Arntzen
403011e973
Merge pull request #684 from cdavis5e/msl-builtin-vector-cast
MSL: Cast uses of builtin vectors to their declared SPIR-V type.
2018-09-11 19:59:58 +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
Hans-Kristian Arntzen
b114889102 Only declare typed initializer list for non-array types.
Also, cleanup now redundant constant_expression virtualization for MSL.
2018-09-10 10:04:17 +02:00
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
4b99fdd5d0 MSL: Account for components when assigning locations to varyings.
Two varyings (vertex outputs/fragment inputs) might have the same
location but be in different components--e.g. the compiler may have
packed what were two different varyings into a single varying vector.
Giving both varyings the same `[[user]]` attribute won't work--it may
yield unexpected results, or flat out fail to link. We could eventually
pack such varyings into a single vector, but that would require us to
handle the case where the varyings are different types--e.g. a `float`
and a `uint` packed into the same vector. For now, it seems most
prudent to give them unique `[[user]]` locations and let Apple's
compiler work out the best way to pack them.
2018-09-06 13:52:33 -05:00
Chip Davis
9e6469bd40 MSL: Handle interpolation qualifiers. 2018-09-05 12:02:07 -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
Chip Davis
9fbe39c9c0 MSL: Emit spvTexelBufferCoord() on ImageWrite to a Buffer as well.
This is necessary to get the coordinates to give to the texture's
`write()` method.
2018-09-04 12:14:34 -05:00
Chip Davis
27af716c3a MSL: Emit F{Min,Max,Clamp} as fast:: and N{Min,Max,Clamp} as precise::.
This roughly matches their semantics in SPIR-V and MSL. For `FMin`,
`FMax`, and `FClamp`, and the Metal functions `fast::min()`,
`fast::max()`, and `fast::clamp()`, the result is undefined if any
operand is NaN. For the 'N' operations and their corresponding MSL
`precise::` functions, the result is consistent with IEEE 754 (first
non-NaN wins; result is NaN if all operands are NaN).

We can only do this with 32-bit floats, though, because Metal only
provides these variants for `float`. `half` only has one variant of
these functions that is presumably consistent with IEEE 754. I guess
that's OK; the SPIR-V spec only says that `F{Min,Max,Clamp}` are
undefined for NaNs. Performance might suffer, though.
2018-09-01 23:01:46 -05:00
Chip Davis
0829a786d2 Add tests for FUnord comparisons of vectors. 2018-09-01 12:42:07 -05:00
Chip Davis
d3233690cb MSL: Support unordered relational operators.
The SPIR-V spec says that these check if the operands either are
unordered or satisfy the given condition. So that's just what we'll do,
using Metal's `isunordered()` stdlib function. Apple's optimizers ought
to be able to collapse that to a single unordered compare.
2018-08-31 13:54:42 -05:00
Hans-Kristian Arntzen
87de951105 MSL: Fix naming issue of aliased global variables.
When the name of an alias global variable collides with a global
declaration, MSL would emit inconsistent names, sometimes with the
naming fix, sometimes without, because names were being tracked in two
separate meta blocks. Fix this by always redirecting parameter naming to
the original base variable as necessary.
2018-08-27 09:59:55 +02:00
Hans-Kristian Arntzen
361fe52c9d MSL: Properly support passing parameters by value.
MSL would force thread const& which would not work if the input argument
came from a different storage class.

Emit proper non-reference arguments for such values.
2018-08-06 15:43:51 +02:00
Hans-Kristian Arntzen
2bf57d6dff Deal with composite constants in variable initializer. 2018-07-05 15:29:49 +02:00
Hans-Kristian Arntzen
dcddd5326e Add LUT test cases for OpVariable with initializer. 2018-07-05 14:51:07 +02:00
Hans-Kristian Arntzen
af290ede87 Remove some redundant spvArrayCopy declarations. 2018-07-05 14:43:12 +02:00
Hans-Kristian Arntzen
d29f48ef06 Deduce constant LUTs from read-write variables. 2018-07-05 13:25:57 +02:00
Hans-Kristian Arntzen
e044732896 Support OpTypeImage with depth == 2 (unknown) properly.
Track which OpSampledImages are ever used with Dref opcodes.
2018-07-04 14:26:23 +02:00
Hans-Kristian Arntzen
d94d20f4f3 Deal with some builtins being declared with wrong signedness. 2018-06-22 11:30:56 +02:00
Bill Hollings
ab2ea93e35 Merge branch 'master' of https://github.com/KhronosGroup/SPIRV-Cross 2018-06-12 11:42:56 -04:00
Bill Hollings
9b4defe202 CompilerMSL support matrices & arrays in stage-in & stage-out.
Support flattening StorageOutput & StorageInput matrices and arrays.
No longer move matrix & array inputs to separate buffer.
Add separate SPIRFunction::fixup_statements_in & SPIRFunction::fixup_statements_out
instead of just  SPIRFunction::fixup_statements.
Emit SPIRFunction::fixup_statements at beginning of functions.
CompilerMSL track vars_needing_early_declaration.
Pass global output variables as variables to functions that access them.
Sort input structs by location, same as output structs.
Emit struct declarations in order output, input, uniforms.
Regenerate reference shaders to new formats defined by above.
2018-06-12 11:41:35 -04:00
Hans-Kristian Arntzen
192a882df3 Also unpack regular unary/binary operations on MSL.
Apparently MSL gets confused when you have packed_float3 op float3 ...
2018-06-11 16:23:09 +02:00
Hans-Kristian Arntzen
46bf17c5d3 Add SREM tests for HLSL/MSL. 2018-05-24 10:34:36 +02:00
Hans-Kristian Arntzen
bcaae84c76 Deal with scoping for Private variables. 2018-05-16 10:49:30 +02:00
Hans-Kristian Arntzen
991b655c72 Declare OpSpecConstantOp up-front on relevant targets.
Required, since spec constants can include results from constant ops.
2018-05-15 14:20:16 +02:00
Hans-Kristian Arntzen
d93807a625 Deal with OpImageFetch without explicit LOD. 2018-04-30 10:54:44 +02:00
Hans-Kristian Arntzen
aaf397cd1f Fix usage tracking issue for OpImage. 2018-04-27 11:11:24 +02:00
Hans-Kristian Arntzen
0280800a8f Fix case where SampledImage would get flushed to temporary. 2018-04-27 10:06:30 +02:00
Hans-Kristian Arntzen
146ea76f52 Add test shader for subgroup.
Update SPIRV-Tools/glslang commits.
Use vulkan1.1 environment for testing.
Found new "errors" in SPIRV-Tools, so disable validation on those shaders
for now.
2018-04-11 10:29:47 +02:00
Hans-Kristian Arntzen
694b314f87 Support empty structs.
Need to fake it by pretending it has one dummy member.
2018-04-05 16:26:54 +02:00
Hans-Kristian Arntzen
ac81a0ce68 Use declared binding in SPIR-V as a fallback for explicit MSL binds. 2018-04-04 12:25:11 +02:00
Hans-Kristian Arntzen
e7bf8d2f48 Refactor out noopt shaders to their own folders.
Makes maintenance easier with less clutter.
2018-03-13 10:39:49 +01:00
Hans-Kristian Arntzen
9fbd8b789e Update tests for latest SPIRV-Tools and glslang. 2018-03-12 15:11:55 +01:00
Hans-Kristian Arntzen
e3b8e9455c Add test shader where a phi variable invalidates a temporary.
The temporary in question is used to flush a phi variable.
2018-03-09 14:42:26 +01:00
Hans-Kristian Arntzen
e0efa737ca Expand the implementation of inherit_expression_dependencies. 2018-03-09 13:21:38 +01:00
Hans-Kristian Arntzen
5fe79eb59c Update tests.
Adds an earlier reported shader packing failure into regression suite.
2018-03-05 16:34:42 +01:00
Hans-Kristian Arntzen
a04bdcc7f7 Handle overloaded functions which share the same OpName.
Awkward, but legal SPIR-V.
2018-02-23 14:15:51 +01:00
Hans-Kristian Arntzen
8a3bef2bd6 Add OpFRem tests. 2018-02-15 13:36:59 +01:00
Hans-Kristian Arntzen
c9db3e5521 Overload on constant storage. 2018-02-08 17:58:46 +01:00
Hans-Kristian Arntzen
b2c9487b0f Attempt to deduce constant/thread storage. 2018-02-08 17:07:50 +01:00
Hans-Kristian Arntzen
1a9c960058 MSL cannot declare inline arrays except in certain cases. 2018-02-08 13:06:29 +01:00
Arseny Kapoulkine
5cbed7a69f Update test files 2018-01-29 06:40:45 -08:00
Hans-Kristian Arntzen
b3f6e3de8e Fix CFG::update_common_dominator.
The algorithm was too conservative causing lots of unnecessary
temporaries to be created.
2018-01-24 20:32:11 +01:00
Hans-Kristian Arntzen
09f550f718 Handle exponential explosion of code-gen during first phase of compile.
Certain patterns with OpVectorShuffle (and probably others) will cascade
to so large, that they can cause OOM. After we have observed
force_recompile, don't spend unnecessary memory emitting code which will
never be used.
2018-01-24 18:12:41 +01:00
Hans-Kristian Arntzen
7d223b8987 Fix CFG for forwarded temporaries.
Forwarded temporaries would never declare a temporary.
Figure out all result types ahead of time so we can deal with those
temporaries as well.
2018-01-18 12:11:33 +01:00
Hans-Kristian Arntzen
168bcc7b3b Add unreachable tests for MSL/HLSL. 2018-01-15 09:39:15 +01:00
Hans-Kristian Arntzen
d4e470babd Analyze the CFG for temporaries as well.
Normally, temporary declaration must dominate any use of it,
so we generally did not need to analyze the CFG for these variables,
but there is an edge case where you have an inliner doing:

do {
	create_temporary;
	break;
} while(0);

use_temporary;

The inside of the loop dominates the outer scope, but we cannot emit
code like this in GLSL, so make sure we hoist these temporaries outside
the "loop".
2018-01-12 10:56:11 +01:00
Bill Hollings
c93d44ba3c For MSL, use {} instead of constructors to init OpUndef values. 2017-11-30 15:03:27 -05:00
Hans-Kristian Arntzen
3440263d60 Update MSL tests. 2017-11-23 09:50:11 +01:00
Bill Hollings
e83e2b2217 CompilerMSL support and tests for OpUndef. 2017-11-15 22:44:42 -05:00
Bill Hollings
ba865733eb Merge branch 'master' of https://github.com/KhronosGroup/SPIRV-Cross 2017-11-05 22:49:08 -05:00
Bill Hollings
1c18078811 Enhancements to MSL compute and entry point naming.
Support Workgroup (threadgroup) variables.
Mark if SPIRConstant is used as an array length, since it cannot be specialized.
Resolve specialized array length constants.
Support passing an array to MSL function.
Support emitting GLSL array assignments in MSL via an array copy function.
Support for memory and control barriers.
Struct packing enhancements, including packing nested structs.
Enhancements to replacing illegal MSL variable and function names.
Add Compiler::get_entry_point_name_map() function to retrieve entry point renamings.
Remove CompilerGLSL::clean_func_name() as obsolete.
Fixes to types in bitcast MSL functions.
Add Variant::get_id() member function.
Add CompilerMSL::Options::msl_version option.
Add numerous MSL compute tests.
2017-11-05 21:34:42 -05:00
Hans-Kristian Arntzen
8538b4c9c0 Handle empty struct declarations with best effort.
This "feature" is a bit icky as we have no useful representation of it,
so never emit code which has anything to do with empty structs.
2017-10-06 13:05:14 +02:00
Hans-Kristian Arntzen
067f241bf8 Runtime arrays do not work yet in MSL, so don't try to test that yet. 2017-10-02 09:24:16 +02:00
Hans-Kristian Arntzen
ecaea50739 Add SPVASM test from clspv. 2017-09-29 12:20:57 +02:00
Hans-Kristian Arntzen
db5d49f04a Add SPVASM testing support for HLSL/MSL. 2017-09-29 11:07:11 +02:00