AuroraMiddleware/SPIRV-Cross
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d93807a625
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36 Commits

Author SHA1 Message Date
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
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
35f64d03bb Fix name aliasing for temporary variables. 2018-03-24 01:53:49 +01:00
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
e8e58844d4 Rewrite everything to use Bitset rather than uint64_t. 2018-03-12 13:24:14 +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
28cccc3dbb Emit complex continue blocks "properly". 2018-03-08 17:59:21 +01:00
Hans-Kristian Arntzen
54549a624f Add some test shaders for special merge methods. 2018-03-08 16:48:50 +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
1a2e4de7a5 Add test for texelFetch without sampler. 2018-02-21 13:45:59 +01:00
Hans-Kristian Arntzen
8a3bef2bd6 Add OpFRem tests. 2018-02-15 13:36:59 +01:00
Hans-Kristian Arntzen
8841f15283 Fix case where loop header branches into continue block. 2018-02-01 10:00:16 +01:00
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
d0ce948df4 Do not merge swizzles for anything other than vectors. 2018-01-22 09:52:57 +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
b902d5400c Do not use inline for-loop initializers with different types. 2018-01-16 10:27:58 +01:00
Hans-Kristian Arntzen
0f4adaa09d Handle OpUnreachable in code-gen. 
Forgot to add it to emit_block_chain. It should just be a noop.
 2018-01-15 09:35:09 +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
Hans-Kristian Arntzen
6d7af5c83c Add test for continue block lifting. 2017-12-05 17:44:52 +01:00
Hans-Kristian Arntzen
0fd028147f Hoist all phi-local variables to entry block. 
We don't have a mechanism to move temporaries to their appropriate
scope, and Phi behavior is weird enough that it will be a heroic effort
to not do this rather ugly codegen :(
 2017-11-23 09:50:11 +01:00
Hans-Kristian Arntzen
b629ca1c33 Fix complicated Phi case. 
A continue block might have used a temporary which existed only in the
loop body.
 2017-11-21 09:27:49 +01:00
Hans-Kristian Arntzen
851e584338 Do not allow base expressions when extracting struct members. 2017-11-20 21:32:13 +01:00
Hans-Kristian Arntzen
3339fd4e87 Fix case when Phi variable is a loop variable. 
Need to flush variable to static expression rather than a variable.
 2017-09-25 10:15:17 +02:00
Hans-Kristian Arntzen
48ccde3779 Support OpConstantNull. 2017-08-03 14:32:29 +02:00
Hans-Kristian Arntzen
a4fafa0607 Fix edge-case where do/while body is a dominator. 
Shows up quite a lot in inlined code, should get more test coverage in
this area ...
 2017-08-02 11:58:24 +02:00
Hans-Kristian Arntzen
dbaaf1b69e Add test for default member names. 2017-07-29 21:58:37 +02:00
Hans-Kristian Arntzen
df6aa0e609 Support SampleCmpLevelZero on cubes as well. 2017-07-24 09:28:24 +02:00
Hans-Kristian Arntzen
ad2b7c05e7 Implement workaround for textureLod on 2D array shadow. 
This does not exist in GLSL, but it exists in HLSL if LOD == 0.0.
 2017-06-23 09:45:42 +02:00
Hans-Kristian Arntzen
543e380d90 Fix case where samplerBuffer is emitted without combined sampler. 2017-04-02 11:03:07 +02:00
Hans-Kristian Arntzen
e67f6f85a4 Defer parenthesis generation until needed. 
Previously, we would generate parentheses proactively when generating
binary ops, however, this leads to uglier code and hits warnings in
compilers when used as a conditional.
 2016-12-05 10:56:54 +01:00
Hans-Kristian Arntzen
36a0b63f28 Fix various corner cases with expression dependencies. 
There was a potential problem if variables were invalidated and SPIR-V
read expressions which depended on other expression which in turn depended on the
invalidated variable.

Also fixes issue where variables were considered immutable if they were
forwardable. This allowed some incorrect optimizations to slip through.
 2016-07-12 14:50:23 +02:00