AuroraMiddleware/SPIRV-Cross
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2714f5410c
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84 Commits

Author SHA1 Message Date
Hans-Kristian Arntzen
2714f5410c CFG: Handle degenerate selection constructs. 
Apparently, it's legal to use a selection construct where both paths
branch to same location, but a different merge point is used.
This breaks many assumptions the variable scope analyzer makes.

The only logical way to generate code for this scenario is to treat the
selection construct as a trivial switch construct with only a default
case.
 2021-11-07 13:32:29 +01:00
Erfan Ahmadi
43eecb2360 SPIRV-Cross contribution needed for INTEL_fragment_shader_ordering 2021-10-25 10:50:10 +02:00
Hans-Kristian Arntzen
23c4480d8e Fix switch fallthrough case in some cases. 2021-08-31 17:24:09 +02:00
Hans-Kristian Arntzen
cb613eb675 Handle value access in terminators. 
Fixes case where value is created inside loop body and consumed by a
return outside it.
 2021-07-29 15:27:52 +02:00
Hans-Kristian Arntzen
18f3cd6810 GLSL: Ensure ray query object decls are flushed if allocated in Function. 
glslang always emits Private variables, but DXC not so much.
 2021-07-20 12:04:00 +02:00
Hans-Kristian Arntzen
8216e87f02 Handle SPIR-V 1.4 selection constructs. 
Fix bug in to_trivial_mix_op, where we made a pre-1.4 assumption that
component count of selector is equal to value component count.
 2021-06-28 12:23:44 +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
ee31e84e30 GLSL: Handle complex load/store scenarios to gl_SampleMask. 
Need special workarounds to handle array load/store since array size is
unsized in GLSL, and array copy is not possible.
Also, consider bitcast for scalar loads and stores.
 2021-03-09 10:25:03 +01:00
Hans-Kristian Arntzen
4ca06c7278 Handle edge cases in OpCopyMemory. 
Implement this by synthesizing an OpLoad/OpStore pair instead.
 2021-03-08 14:15:27 +01:00
Hans-Kristian Arntzen
ea02a0c03a Check entry point variables in is_hidden_variables. 
Need to be careful not to emit globals we're not supposed to.
 2021-01-22 13:53:22 +01:00
Hans-Kristian Arntzen
4bedad3860 Handle nonuniformEXT qualifier for acceleration structures. 2021-01-22 13:13:56 +01:00
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
03ee71e86c Add test for pure initializer gl_FragDepth. 
Tests that the builtin is considered active.
 2021-01-07 15:32:15 +01:00
Hans-Kristian Arntzen
3776d8978c GLSL: Force block declaration if clip/cull is used in tesc. 2021-01-07 15:32:15 +01:00
Hans-Kristian Arntzen
6a3ea0385e GLSL: Add test for initializing tess level output. 2021-01-05 12:12:26 +01:00
Hans-Kristian Arntzen
175381fe08 GLSL: Handle some extreme edge cases in Output variable initialization. 
Deal with patch blocks, arrays of patch blocks, arrays of blocks, etc.
 2021-01-05 12:06:36 +01:00
Hans-Kristian Arntzen
a1c784f002 More robust handling of initialized output builtin variables. 2021-01-04 19:12:43 +01:00
Hans-Kristian Arntzen
9a304fe931 Handle output IO block initializers more robustly. 2021-01-04 19:04:10 +01:00
Hans-Kristian Arntzen
ddb3c65648 Handle reserved identifiers for functions. 
gl_ identifiers are already handled by fixups, so remove redundant code.
 2021-01-04 10:00:12 +01:00
Hans-Kristian Arntzen
c8765a75f2 GLSL: Fix KHR subgroup extension table for subgroups. 2020-12-11 12:26:43 +01:00
Hans-Kristian Arntzen
762c3082ae
Merge pull request #1564 from KhronosGroup/fix-1558 
GLSL: Emit nonuniformEXT in correct place for late-combined samplers.
 2020-12-07 14:07:38 +01:00
Hans-Kristian Arntzen
a11c4780d0 GLSL: Emit nonuniformEXT in correct place for late-combined samplers. 
Need to emit nonuniformEXT(sampler2D()) since constructor expressions in
Vulkan GLSL do not propgate the nonuniform qualifier.
 2020-12-07 13:00:15 +01:00
Hans-Kristian Arntzen
dc940846d7 GLSL/HLSL: Disallow VariablePointers capability outright. 
Cannot be supported, error out early.
 2020-12-07 12:16:02 +01:00
Hans-Kristian Arntzen
e07f0a9df5 GLSL: Fix buffer_reference with aliased names. 2020-11-23 16:36:49 +01:00
Hans-Kristian Arntzen
439b666829 GLSL: Fix nonuniformEXT injection. 
Needs to consider that other expressions might be using brackets as well
...
 2020-10-30 14:11:16 +01:00
Hans-Kristian Arntzen
542d460364 Handle case where block is loop header, continue AND break block. 2020-10-27 12:29:08 +01:00
Hans-Kristian Arntzen
54cc0b01f6 Deal with case where a selection construct conditionally merges/breaks. 2020-09-17 12:02:43 +02:00
Hans-Kristian Arntzen
a07441568e Overhaul how we deal with reserved identifiers. 
- Do not silently drop reserved identifiers in the parser. This makes it
  possible to reflect identifiers which are reserved by the
  cross-compiler module.
- Instead of dropping the name, emit _RESERVED_IDENTIFIER_FIXUP in the
  source to make it clear that a name has been rewritten.
- Document what is reserved and not.
 2020-08-21 16:33:27 +02:00
Hans-Kristian Arntzen
8a1843ab20 Add some test cases for complex type aliasing scenario. 2020-07-29 13:02:52 +02:00
Hans-Kristian Arntzen
aac6885950 GLSL: Be more aggressive about using type_alias. 
To facilitate an improved linking-by-name use case for older GL,
we will be more aggressive about merging struct definitions, even for
rather unrelated cases where we don't strictly need to use type aliases.
 2020-07-29 12:48:41 +02:00
Hans-Kristian Arntzen
3afbfdb090 Implement context-sensitive expression read tracking. 
When inside a loop, treat any read of outer expressions to happen
multiple times, forcing a temporary of said outer expressions.
This avoids the problem where we can end up relying on loop-invariant code motion to happen in the
compiler when converting optimized shaders.
 2020-06-29 12:20:35 +02:00
Hans-Kristian Arntzen
05188aca69 Fix bug with control dependent expression tracking. 
For a direct branch without merge, we lost control dependent
expressions.
 2020-06-29 10:55:50 +02:00
Hans-Kristian Arntzen
eb0f0323d3 HLSL: Workaround FXC bugs with degenerate switch blocks. 
When we see a switch block which only contains one default block, emit a
do {} while(false) statement instead, which is far more idiomatic and
readable anyways.
 2020-06-23 15:39:04 +02:00
Hans-Kristian Arntzen
f141521ebe Fix duplicated initialization for loop variables with initializers. 2020-06-19 10:51:00 +02:00
Hans-Kristian Arntzen
857e1c445c GLSL: Support uint code for sparse residency query. 2020-06-08 11:40:02 +02:00
Hans-Kristian Arntzen
9b7140e2ba Implement OpAtomicLoad/OpAtomicStore. 
Need some emulation on GLSL/HLSL, fix bug with atomic store on MSL.
 2020-04-27 12:11:46 +02:00
Hans-Kristian Arntzen
5e5d1c27ce GLSL: Support f16x2 <-> f32 bitcast. 
There is no native formulation, so introduce a concept of a "complex"
bitcast to handle odd-ball cases which have no native unary operation.
 2020-04-21 23:27:33 +02:00
Hans-Kristian Arntzen
b8905bbd95 Add support for forcefully zero-initialized variables. 
Useful to better support certain platforms which require all variables
to be initialized to something.
 2020-03-26 13:38:27 +01:00
Hans-Kristian Arntzen
05004a57ea GLSL/HLSL: Fix nonuniform qualifier for SSBO atomics. 2020-03-19 12:05:27 +01:00
Hans-Kristian Arntzen
a3d3c80dd7 GLSL/HLSL: Implement nonuniform qualifier for image atomics. 2020-03-19 11:35:29 +01:00
Hans-Kristian Arntzen
5253da9e63 GLSL: Deal with sign in subgroup Min/Max operations. 2020-01-09 12:35:14 +01:00
Hans-Kristian Arntzen
9012a39b60 Basic implementation of OpCopyLogical. 2020-01-06 11:47:26 +01:00
Dan Sinclair
f40c629821 Roll SPIRV-Tools, SPIRV-Headers and GLSLang 
This CL updates the three depdencies and updates the tests to handle the
new validation errors which are produced.
 2019-12-02 16:17:21 -05:00
Hans-Kristian Arntzen
4edb99d476 Fix sign handling for S/UToF. 2019-11-28 13:55:28 +01:00
Hans-Kristian Arntzen
b56c2f4271 Merge branch 'deps' of git://github.com/dj2/SPIRV-Cross 2019-11-06 10:43:17 +01:00
Hans-Kristian Arntzen
d4ca91f6c2 Move .invalid. test shaders to the more appropriate subfolders. 2019-11-06 10:40:37 +01:00
Dan Sinclair
79721eda12 Remove old reference shaders 2019-11-05 12:49:04 -05:00
Dan Sinclair
9da21c24a4 Roll GLSLang and SPIRV-Tools 
This CL rolls the GLSLang and SPIRV-Tools dependencies to tip-of-tree
and updates the tests as required.
 2019-11-05 10:07:15 -05:00
Hans-Kristian Arntzen
e2155053c5 Fix broken access tracking for OpFunctionCall results. 
We were looking at args[1] after incrementing args array, not before,
which means we tracked garbage.
This is also an out-of-bounds hazard.
 2019-10-29 11:13:39 +01:00
Hans-Kristian Arntzen
3b5c4c7316 Implement constant empty struct correctly on all backends. 
MSL actually supports empty structs, so enable that path as well.
 2019-10-26 16:10:11 +02:00