Commit Graph

108 Commits

Author SHA1 Message Date
Hans-Kristian Arntzen
b3ff97d0fe
Merge pull request #1946 from KhronosGroup/fix-1943
Promote Unreachable cases into break to avoid fallthrough.
2022-05-18 19:22:45 +02:00
Hans-Kristian Arntzen
d08ce828f4 Promote Unreachable cases into break to avoid fallthrough.
HLSL is very fussy about fallthrough in switch blocks, so promote
Unreachable blocks to breaks if they are inside a switch construct.

Some false positives are possible in weird multi-break scenarios, but
this is benign.
2022-05-18 18:36:32 +02:00
Hans-Kristian Arntzen
23662668dd Attempt more optimal codegen for OpCompositeInsert.
Speculate that we can modify the SSA value in-place. As long as it is
not used after the modify, this is fine.

Also need to make sure we don't attempt to RMW something that is
impossible to modify.
2022-05-18 16:37:33 +02:00
Hans-Kristian Arntzen
fe8848a6f2 Roll dependencies. 2022-01-05 14:56:01 +01:00
Hans-Kristian Arntzen
d6b29ab017 HLSL: Rewrite how block IO is emitted.
Emit block members directly in the IO structs and sort them.
Ensures we can get some kind of stable order between stages.

To complete the story, we'll need to be able to inject unused inputs /
builtins, or eliminate unused outputs (probably easiest solution).
2021-06-28 15:04:49 +02:00
Hans-Kristian Arntzen
532f65583e Rewrite how non-uniform qualifiers are handled.
Remove all shenanigans with propagation, and only consume nonuniform
qualifiers exactly where needed (last minute).
2021-04-22 16:03:08 +02:00
Hans-Kristian Arntzen
7ab3f3f74e Deal better with CompositeExtract from constant composite.
There is no good reason for applications to emit this kind of code, but
some do. Special case this scenario.
2021-01-22 12:30:16 +01:00
Hans-Kristian Arntzen
6a614cc7f7 Normalize all internal workaround methods to use spv prefix.
We have been interchanging spv and SPIRV_Cross_ for a while, which
causes weirdness since we don't explicitly ban SPIRV_Cross identifiers,
as these identifiers are generally used for interface variable
workarounds.
2020-11-23 15:42:27 +01:00
rdb
135933d59e HLSL: Add regression test for SM3.0 texture samplers 2020-11-03 18:15:05 +01:00
Hans-Kristian Arntzen
fdbc80d131 HLSL: Fix FragCoord.w.
Need to invert it, SM 4.0+ uses W, not 1/W (like Vulkan/GL).
2020-08-20 16:22:48 +02:00
Tomek Ponitka
ba58f78395 Adding BuiltInSampleMask in HLSL 2020-07-27 14:14:26 +02:00
dan sinclair
c4f3d4ae29 Roll GLSLang, SPIRV-Headers and SPIRV-Tools.
This Cl updates the various dependencies and the test file outputs.
2020-07-22 23:03:11 -04:00
dan sinclair
63fbdaca93 Roll deps.
This CL updates the GLSLang and SPIRV-Tools depedencies and updates test
files as needed.
2020-07-06 11:24:30 -04:00
Hans-Kristian Arntzen
d13dc0ce47 HLSL: Fix texProj in legacy HLSL. 2020-06-16 12:54:22 +02:00
Hans-Kristian Arntzen
f3a362b1aa HLSL: Implement image queries for UAV images.
This was completely unimplemented for some reason.
2020-05-19 13:53:04 +02:00
Hans-Kristian Arntzen
185551bfaf HLSL: Do not emit globallycoherent for SRV ByteAddressBuffer. 2020-03-05 10:37:36 +01:00
Dan Sinclair
d409210ee5 Move all .invalid shaders into no-opt folders. 2019-11-05 13:19:19 -05:00
Chip Davis
2eff420d9a Support the SPV_EXT_fragment_shader_interlock extension.
This was straightforward to implement in GLSL. The
`ShadingRateInterlockOrderedEXT` and `ShadingRateInterlockUnorderedEXT`
modes aren't implemented yet, because we don't support
`SPV_NV_shading_rate` or `SPV_EXT_fragment_invocation_density` yet.

HLSL and MSL were more interesting. They don't support this directly,
but they do support marking resources as "rasterizer ordered," which
does roughly the same thing. So this implementation scans all accesses
inside the critical section and marks all storage resources found
therein as rasterizer ordered. They also don't support the fine-grained
controls on pixel- vs. sample-level interlock and disabling ordering
guarantees that GLSL and SPIR-V do, but that's OK. "Unordered" here
merely means the order is undefined; that it just so happens to be the
same as rasterizer order is immaterial. As for pixel- vs. sample-level
interlock, Vulkan explicitly states:

> With sample shading enabled, [the `PixelInterlockOrderedEXT` and
> `PixelInterlockUnorderedEXT`] execution modes are treated like
> `SampleInterlockOrderedEXT` or `SampleInterlockUnorderedEXT`
> respectively.

and:

> If [the `SampleInterlockOrderedEXT` or `SampleInterlockUnorderedEXT`]
> execution modes are used in single-sample mode they are treated like
> `PixelInterlockOrderedEXT` or `PixelInterlockUnorderedEXT`
> respectively.

So this will DTRT for MoltenVK and gfx-rs, at least.

MSL additionally supports multiple raster order groups; resources that
are not accessed together can be placed in different ROGs to allow them
to be synchronized separately. A more sophisticated analysis might be
able to place resources optimally, but that's outside the scope of this
change. For now, we assign all resources to group 0, which should do for
our purposes.

`glslang` doesn't support the `RasterizerOrdered` UAVs this
implementation produces for HLSL, so the test case needs `fxc.exe`.

It also insists on GLSL 4.50 for `GL_ARB_fragment_shader_interlock`,
even though the spec says it needs either 4.20 or
`GL_ARB_shader_image_load_store`; and it doesn't support the
`GL_NV_fragment_shader_interlock` extension at all. So I haven't been
able to test those code paths.

Fixes #1002.
2019-09-02 12:31:10 -05:00
Hans-Kristian Arntzen
4bc8729c0e HLSL query lod cleanups. 2019-07-24 11:34:28 +02:00
Chip Davis
50dce10c5d Support the SPV_EXT_demote_to_helper_invocation extension.
This extension provides a new operation which causes a fragment to be
discarded without terminating the fragment shader invocation. The
invocation for the discarded fragment becomes a helper invocation, so
that derivatives will remain defined. The old `HelperInvocation` builtin
becomes undefined when this occurs, so a second new instruction queries
the current helper invocation status.

This is only fully supported for GLSL. HLSL doesn't support the
`IsHelperInvocation` operation and MSL doesn't support the
`DemoteToHelperInvocation` op.

Fixes #1052.
2019-07-17 09:12:22 -05:00
Chip Davis
343c6f4ff4 Update external repos.
Fix fallout from changes.

There's a bug in glslang that prevents `float16_t`, `[u]int16_t`, and
`[u]int8_t` constants from adding the corresponding SPIR-V capabilities.
SPIRV-Tools, meanwhile, tightened validation so that these constants are
only valid if the corresponding `Float16`, `Int16`, and `Int8` caps are
on. This affects the `16bit-constants.frag` test for GLSL and MSL.
2019-07-13 16:50:21 -05:00
Hans-Kristian Arntzen
50342966c0 Fall back to complex loop if non-trivial continue block is found.
There is a case where we can deduce a for/while loop, but the continue
block is actually very painful to deal with, so handle that case as
well. Removes an exceptional case.
2019-07-08 11:54:29 +02:00
Hans-Kristian Arntzen
4056d0b74e Don't use scalar dot(). 2019-07-03 14:32:06 +02:00
Hans-Kristian Arntzen
041f103d44 MSL/HLSL: Support scalar reflect and refract. 2019-07-03 12:31:52 +02:00
Hans-Kristian Arntzen
647ddaee42 HLSL/MSL: Deal correctly with nonuniformEXT qualifier.
MSL does not seem to have a qualifier for this, but HLSL SM 5.1 does.
glslangValidator for HLSL does not support this, so skip any validation,
but it passes in FXC.
2019-05-13 14:58:27 +02:00
Hans-Kristian Arntzen
3e584f2c3f Support LUTs in single-function CFGs on Private storage class.
Fairly common pattern in unoptimized SPIR-V. Support this case as well.
2019-02-06 10:38:59 +01:00
Hans-Kristian Arntzen
4e7777c443 Update to latest glslang/SPIRV-Tools.
Fix various bugs along the way.
2019-01-30 13:41:57 +01:00
Hans-Kristian Arntzen
18a4accd2f HLSL/MSL: Fix texture projection with Dref.
We need to divide the Dref by q.
2019-01-28 10:25:13 +01:00
Hans-Kristian Arntzen
a365ff17bd HLSL: Support dual-source blending. 2019-01-11 10:03:45 +01:00
Hans-Kristian Arntzen
acae607703 Register implied expression reads in OpLoad/OpAccessChain.
This is required to avoid relying on complex sub-expression elimination
in compilers, and generates cleaner code.

The problem case is if a complex expression is used in an access chain,
like:

Composite comp = buffer[texture(...)];
vec4 a = comp.a + comp.b + comp.c;

Before, we did not have common subexpression tracking for
OpLoad/OpAccessChain, so we easily ended up with code like:

vec4 a = buffer[texture(...)].a + buffer[texture(...)].b + buffer[texture(...)].c;

A good compiler will optimize this, but we should not rely on it, and
forcing texture(...) to a temporary also looks better.

The solution is to add a vector "implied_expression_reads", which works
similarly to expression_dependencies. We also need an extra mechanism in
to_expression which lets us skip expression read checking and do it
later. E.g. for expr -> access chain -> load, we should only trigger
a read of expr when using the loaded expression.
2019-01-04 14:56:12 +01:00
Hans-Kristian Arntzen
04f410d35c Fix unsigned switch case selectors. 2018-11-26 10:36:50 +01:00
Hans-Kristian Arntzen
4e5c8d7199 Deal with depth_greater/depth_less qualifiers.
Adds support on HLSL SM 5.0, and fixes bug on GLSL.
Makes sure early fragment tests is tested on MSL as well.
2018-11-12 10:35:36 +01:00
Hans-Kristian Arntzen
b778e16e48 HLSL: Complete support for combined image samplers in legacy. 2018-11-12 09:59:39 +01:00
Hans-Kristian Arntzen
62db535b3f Update tests. 2018-11-01 11:23:48 +01:00
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
Hans-Kristian Arntzen
226d837d7e HLSL: Use same logic as GLSL for picking cbuffer block name.
HLSL just picked the variable name which did not work as expected for
some users. Use the same logic as GLSL and set up declared_block_names,
so the actual name can be queried later.
2018-10-22 09:50:04 +02:00
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
crosire
3d39652853 Add tests for previous fix 2018-09-11 20:57:56 +02:00
Hans-Kristian Arntzen
eee290a029 MSL: Fix support for texelFetchOffset.
Just apply the offset directly, MSL has no immediate offset parameter.
2018-08-07 15:28:04 +02:00
Hans-Kristian Arntzen
5582523d9a Add some tests for LUT promotion.
Also, update other tests.
2018-07-05 14:14:18 +02:00
Hans-Kristian Arntzen
d29f48ef06 Deduce constant LUTs from read-write variables. 2018-07-05 13:25:57 +02:00
Hans-Kristian Arntzen
ffa9133d77 Support ternary expressions in OpSpecConstantOp. 2018-06-25 09:49:13 +02:00
Hans-Kristian Arntzen
f1e8555801 Emit matrix layouts in structs directly.
Unlike GLSL, child structs do not inherit matrix layouts.
2018-06-05 09:42:07 +02:00
Hans-Kristian Arntzen
d93807a625 Deal with OpImageFetch without explicit LOD. 2018-04-30 10:54:44 +02:00
Hans-Kristian Arntzen
e8ca39b7b5 Add test for sampler image arrays. 2018-04-04 09:41:20 +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
938c7debed Handle control-dependent temporaries.
Derivatives, subgroup and implicit-lod instructions all need to happen
in the block they were created.
2018-03-12 17:34:54 +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
922420e346 Disallow arrays and structs from becoming loop variables.
Fixes awkward code-gen issue.
2018-03-07 14:54:11 +01:00
Hans-Kristian Arntzen
723bec5d33 frexp/ldexp fails in debug builds, workaround temporarily. 2018-03-07 11:20:53 +01:00