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skia2/tests/sksl/shared/GaussianBlur.metal
John Stiles 2654187396 Eliminate unused local variables during SkSL optimization. 
This can eliminate const variables which have been completely folded
away, unnecessary synthetic variables created during codegen/inlining,
or code that simply didn't need to exist at all.

Change-Id: I37a65e455e6527a6a6c2f4dde918f48d84dc2638
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/383496
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-03-16 17:22:53 +00:00

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8.4 KiB
Metal
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#include <metal_stdlib>
#include <simd/simd.h>
using namespace metal;
struct Inputs {
float2 vLocalCoord_Stage0 [[user(locn0)]];
};
struct Outputs {
float4 sk_FragColor [[color(0)]];
};
struct uniformBuffer {
float4 sk_RTAdjust;
float2 uIncrement_Stage1_c0;
char pad0[8];
array<float4, 7> uKernel_Stage1_c0;
float3x3 umatrix_Stage1_c0_c0;
float4 uborder_Stage1_c0_c0_c0;
float4 usubset_Stage1_c0_c0_c0;
float4 unorm_Stage1_c0_c0_c0;
};
struct Globals {
constant uniformBuffer* _anonInterface0;
texture2d<float> uTextureSampler_0_Stage1;
sampler uTextureSampler_0_Stage1Smplr;
};
float4 MatrixEffect_Stage1_c0_c0(thread Globals& _globals, float4 _input, float2 _coords) {
float2 _0_coords = (_globals._anonInterface0->umatrix_Stage1_c0_c0 * float3(_coords, 1.0)).xy;
float2 _2_inCoord = _0_coords;
_2_inCoord *= _globals._anonInterface0->unorm_Stage1_c0_c0_c0.xy;
float2 _3_subsetCoord;
_3_subsetCoord.x = _2_inCoord.x;
_3_subsetCoord.y = _2_inCoord.y;
float2 _4_clampedCoord;
_4_clampedCoord = _3_subsetCoord;
float4 _5_textureColor = _globals.uTextureSampler_0_Stage1.sample(_globals.uTextureSampler_0_Stage1Smplr, _4_clampedCoord * _globals._anonInterface0->unorm_Stage1_c0_c0_c0.zw);
float _6_snappedX = floor(_2_inCoord.x + 0.0010000000474974513) + 0.5;
if (_6_snappedX < _globals._anonInterface0->usubset_Stage1_c0_c0_c0.x || _6_snappedX > _globals._anonInterface0->usubset_Stage1_c0_c0_c0.z) {
_5_textureColor = _globals._anonInterface0->uborder_Stage1_c0_c0_c0;
}
return _5_textureColor;
}
fragment Outputs fragmentMain(Inputs _in [[stage_in]], texture2d<float> uTextureSampler_0_Stage1[[texture(0)]], sampler uTextureSampler_0_Stage1Smplr[[sampler(0)]], constant uniformBuffer& _anonInterface0 [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
Globals _globals{&_anonInterface0, uTextureSampler_0_Stage1, uTextureSampler_0_Stage1Smplr};
(void)_globals;
Outputs _out;
(void)_out;
float4 outputColor_Stage0;
float4 outputCoverage_Stage0;
{
outputColor_Stage0 = float4(1.0);
outputCoverage_Stage0 = float4(1.0);
}
float4 output_Stage1;
float4 _7_output;
_7_output = float4(0.0, 0.0, 0.0, 0.0);
float2 _8_coord = _in.vLocalCoord_Stage0 - 12.0 * _globals._anonInterface0->uIncrement_Stage1_c0;
float2 _9_coordSampled = float2(0.0, 0.0);
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[0].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[0].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[0].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[0].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[1].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[1].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[1].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[1].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[2].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[2].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[2].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[2].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[3].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[3].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[3].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[3].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[4].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[4].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[4].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[4].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[5].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[5].y;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[5].z;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[5].w;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_9_coordSampled = _8_coord;
_7_output += MatrixEffect_Stage1_c0_c0(_globals, outputColor_Stage0, _9_coordSampled) * _globals._anonInterface0->uKernel_Stage1_c0[6].x;
_8_coord += _globals._anonInterface0->uIncrement_Stage1_c0;
_7_output *= outputColor_Stage0;
output_Stage1 = _7_output;
{
_out.sk_FragColor = output_Stage1 * outputCoverage_Stage0;
}
return _out;
}
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