Work to mitigate SPIR-V bloat (#1914)

* Work to mitigate SPIR-V bloat

SPIR-V is not an especially compact format, but some patterns in how Slang generates code and then runs it through `spirv-opt` lead to many redundant field-by-field copy operations being emitted. This change attempts to address some of the resulting bloat from the Slang side of things.

Note: experimentation shows that the bloat is less pronounced when running either *no* SPIR-V optimizations or *full* SPIR-V optimizations, so it is also likely that the bloat should be addressed by changing which `spirv-opt` passes the Slang compiler runs in default (`-O1`) builds. Such changes should come as a distinct pull request.

This change primarily does two things:

First, the code generation strategy for passing arguments to `out` and `inout` parameters has been changed. In the past, the compiler would *always* copy the argument value into a temporary, then pass the address of the temporary, and then write back the value after the call. The new code generation strategy attempts to identify when an argument value already has a simple address in memory and passes that address directly when possible. This eliminates many copy operations that occur before/after calls to functions with `out`/`inout` parameters.

Second, we introduce an IR optimization pass that detects call sites where the entire contents of a buffer (usually a constant buffer) is being passed to a callee function, such that many bytes are loaded and then passed even if only very few are used in the callee. The pass moves the load operations from the caller to a specialized version of the the callee where possible (e.g., when the constant buffer in question is a global shader parameter). Doing this eliminates another major category of copies.

Notes:

* The IR lowering logic is complicated by the fact that several kinds of l-values (values that are usable as the desitnation of assignment, or for `out`/`inout` arguments) are not actually addressable. An easy example is a non-contiguous swizzle like `v.xwz` on a `float4`, where the value occupies 12 bytes, but not 12 consecutive bytes with a single address. There are many more corner cases like that and the IR lowering pass carries a lot of complexity to deal with them. A more systematic overhaul is due some time soon.

* The IR representation of `out` and `inout` parameters deserves some careful scrutiny when making these kinds of changes. The official semantics of `inout` in HLSL has been "copy in copy out" (and `out` is just "copy out") which is observably different from any solution that passes in the address of an l-value directly. By making this change we are saying that Slang's semantics are not precisely those of legacy HLSL, and that our semantics for `inout` parameters are closer to those of `inout` in Swift or of a mutable borrow in Rust. In the Swift case the implementation can freely pass the underlying storage of an l-value or the address of a temporary, and valid programs may not observe the different. It is thus illegal to observe the value in a storage local while a mutation to that location is "in flight." All of this is way more detailed and technical than 99% of Slang users will ever care about, but importantly it gives us semantic cover to eliminate these copies in the IR, and also to emit output C++ code that implements `out` and `inout` as by-reference parameter passing.

* There was an exsting generic pass for specializing functions based on call sites that uses a "template method" style of pattern to customize its behavior. That pass needed to be generalized to handle this use case because it had previously operated on the assumption that the "desire" to specialize a callee function must be driven by the parameter declarations of that function, and not on the argument values passed in. The code has been slightly refactored to allow the policy for specialization to consider both parameters and arguments.

* Unsurprisingly, a bunch of the GLSL (and thus SPIR-V) generated has changed with this work, so several baseline `.slang.glsl` files needed to be updated.

* This change is incomplete in that it does not address broader cases of buffer loads, including both partial loads from constant buffers (just loading one field, but a field that uses a "large" structure type), and loads from multi-element buffers (a lot from a structured buffer where the element type is "large"). The main question in each of those cases is how to define how "large" a structure needs to be before we decide to try and sink loads into callee functions like this. In the worst case, sinking loads in this way may actually create *more* memory traffic (because the same values get loaded in multiple callee functions).

* fixup: run premake

* fixup: typo

9 files changed, 152 insertions, 333 deletions

diff --git a/tests/bugs/gh-841.slang.glsl b/tests/bugs/gh-841.slang.glsl
index ab223724f..8dd37274a 100644
--- a/tests/bugs/gh-841.slang.glsl
+++ b/tests/bugs/gh-841.slang.glsl
@@ -24,8 +24,8 @@ void main()
 
     if(bool(_S4.u_0 & uint(1)))
     {
-        vec4 _S5 = result_1 + 1.0;
-        result_0 = _S5;
+        vec4 result_2 = result_1 + 1.0;
+        result_0 = result_2;
     }
     else
     {
diff --git a/tests/bugs/vk-image-atomics.slang.glsl b/tests/bugs/vk-image-atomics.slang.glsl
index 16dffd8dc..2ed19bffa 100644
--- a/tests/bugs/vk-image-atomics.slang.glsl
+++ b/tests/bugs/vk-image-atomics.slang.glsl
@@ -9,8 +9,8 @@ out vec4 _S1;
 
 void main()
 {
-    uint _S2;
-    _S2 = imageAtomicAdd(t_0, ivec2(uvec2(0)), 1);
-    _S1 = vec4(_S2);
+    uint u_0;
+    u_0 = imageAtomicAdd(t_0, ivec2(uvec2(0)), 1);
+    _S1 = vec4(u_0);
     return;
 }
diff --git a/tests/compute/unbounded-array-of-array-syntax.slang.glsl b/tests/compute/unbounded-array-of-array-syntax.slang.glsl
index d9d0f6262..a275b4599 100644
--- a/tests/compute/unbounded-array-of-array-syntax.slang.glsl
+++ b/tests/compute/unbounded-array-of-array-syntax.slang.glsl
@@ -21,21 +21,21 @@ void main()
 
     int innerIndex_1 = index_0 & 3;
 
-    uint _S3;
-    uint _S4;
-    (_S3) = (g_aoa_0[nonuniformEXT(index_0 >> 2)])._data.length(); (_S4) = 0;
-    uint bufferCount_0 = _S3;
+    uint bufferCount_0;
+    uint bufferStride_0;
+    (bufferCount_0) = (g_aoa_0[nonuniformEXT(index_0 >> 2)])._data.length();
+    (bufferStride_0) = 0;
 
     if(uint(innerIndex_1) >= bufferCount_0)
     {
-        int _S5 = int(bufferCount_0 - uint(1));
-        innerIndex_0 = _S5;
+        int _S3 = int(bufferCount_0 - uint(1));
+        innerIndex_0 = _S3;
     }
     else
     {
         innerIndex_0 = innerIndex_1;
     }
-    uint _S6 = uint(innerIndex_0);
-    ((outputBuffer_0)._data[(uint(index_0))]) = ((g_aoa_0[nonuniformEXT(index_0 >> 2)])._data[(_S6)]);
+    uint _S4 = uint(innerIndex_0);
+    ((outputBuffer_0)._data[(uint(index_0))]) = ((g_aoa_0[nonuniformEXT(index_0 >> 2)])._data[(_S4)]);
     return;
 }
diff --git a/tests/cross-compile/geometry-shader.slang.glsl b/tests/cross-compile/geometry-shader.slang.glsl
index feaf3e1f2..55e1691a9 100644
--- a/tests/cross-compile/geometry-shader.slang.glsl
+++ b/tests/cross-compile/geometry-shader.slang.glsl
@@ -91,8 +91,8 @@ void main()
 
         EmitVertex();
 
-        int _S9 = ii_0 + 1;
-        ii_0 = _S9;
+        int ii_1 = ii_0 + 1;
+        ii_0 = ii_1;
     }
 
     return;
diff --git a/tests/pipeline/ray-tracing/trace-ray-inline.slang.glsl b/tests/pipeline/ray-tracing/trace-ray-inline.slang.glsl
index fb94867a8..597236122 100644
--- a/tests/pipeline/ray-tracing/trace-ray-inline.slang.glsl
+++ b/tests/pipeline/ray-tracing/trace-ray-inline.slang.glsl
@@ -85,20 +85,23 @@ void myMiss_0(inout MyRayPayload_0 payload_4)
 layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
 void main()
 {
-    MyRayPayload_0 payload_5;
     MyProceduralHitAttrs_0 committedProceduralAttrs_0;
     MyProceduralHitAttrs_0 committedProceduralAttrs_1;
-    MyRayPayload_0 payload_6;
     MyProceduralHitAttrs_0 committedProceduralAttrs_2;
-    MyRayPayload_0 payload_7;
     MyProceduralHitAttrs_0 committedProceduralAttrs_3;
+
     rayQueryEXT query_0;
+
+    MyRayPayload_0 payload_5;
     MyRayPayload_0 _S2 = { -1 };
+    payload_5 = _S2;
+ 
     RayDesc_0 ray_1 = { C_0._data.origin_0, C_0._data.tMin_0, C_0._data.direction_0, C_0._data.tMax_0 };
     RayQuery_TraceRayInline_0(query_0, myAccelerationStructure_0, C_0._data.rayFlags_0, C_0._data.instanceMask_0, ray_1);
+
     MyProceduralHitAttrs_0 _S3;
-    payload_5 = _S2;
     committedProceduralAttrs_0 = _S3;
+
     for(;;)
     {
         bool _S4 = rayQueryProceedEXT(query_0);
@@ -111,23 +114,21 @@ void main()
         {
         case uint(1):
             {
-                MyProceduralHitAttrs_0 candidateProceduralAttrs_0 = { 0 };
-                float _S6;
-                _S6 = 0.00000000000000000000;
-                MyProceduralHitAttrs_0 _S7;
-                _S7 = candidateProceduralAttrs_0;
-                bool _S8 = myProceduralIntersection_0(_S6, _S7);
-                float tHit_1 = _S6;
-                MyProceduralHitAttrs_0 candidateProceduralAttrs_1 = _S7;
-                if(_S8)
+                MyProceduralHitAttrs_0 candidateProceduralAttrs_0;
+                MyProceduralHitAttrs_0 _S6 = { 0 };
+                candidateProceduralAttrs_0 = _S6;
+
+                float tHit_1;
+                tHit_1 = 0.00000000000000000000;
+
+                bool _S7 = myProceduralIntersection_0(tHit_1, candidateProceduralAttrs_0);
+                if(_S7)
                 {
-                    MyRayPayload_0 _S9;
-                    _S9 = payload_5;
-                    bool _S10 = myProceduralAnyHit_0(_S9);
-                    MyRayPayload_0 _S11 = _S9;
-                    if(_S10)
+                    bool _S8 = myProceduralAnyHit_0(payload_5);
+                    if(_S8)
                     {
                         rayQueryGenerateIntersectionEXT(query_0, tHit_1);
+                        MyProceduralHitAttrs_0 _S9 = candidateProceduralAttrs_0;
                         if(bool(C_0._data.shouldStopAtFirstHit_0))
                         {
                             rayQueryTerminateEXT(query_0);
@@ -135,31 +136,25 @@ void main()
                         else
                         {
                         }
-                        committedProceduralAttrs_1 = candidateProceduralAttrs_1;
+                        committedProceduralAttrs_1 = _S9;
                     }
                     else
                     {
                         committedProceduralAttrs_1 = committedProceduralAttrs_0;
                     }
-                    payload_6 = _S11;
                     committedProceduralAttrs_2 = committedProceduralAttrs_1;
                 }
                 else
                 {
-                    payload_6 = payload_5;
                     committedProceduralAttrs_2 = committedProceduralAttrs_0;
                 }
-                payload_7 = payload_6;
                 committedProceduralAttrs_3 = committedProceduralAttrs_2;
                 break;
             }
         case uint(0):
             {
-                MyRayPayload_0 _S12;
-                _S12 = payload_5;
-                bool _S13 = myTriangleAnyHit_0(_S12);
-                MyRayPayload_0 _S14 = _S12;
-                if(_S13)
+                bool _S10 = myTriangleAnyHit_0(payload_5);
+                if(_S10)
                 {
                     rayQueryConfirmIntersectionEXT(query_0);
                     if(bool(C_0._data.shouldStopAtFirstHit_0))
@@ -173,42 +168,33 @@ void main()
                 else
                 {
                 }
-                payload_7 = _S14;
                 committedProceduralAttrs_3 = committedProceduralAttrs_0;
                 break;
             }
         default:
             {
-                payload_7 = payload_5;
                 committedProceduralAttrs_3 = committedProceduralAttrs_0;
                 break;
             }
         }
-        payload_5 = payload_7;
         committedProceduralAttrs_0 = committedProceduralAttrs_3;
     }
-    uint _S15 = (rayQueryGetIntersectionTypeEXT((query_0), true));
-    switch(_S15)
+    uint _S11 = (rayQueryGetIntersectionTypeEXT((query_0), true));
+    switch(_S11)
     {
     case uint(1):
         {
-            MyRayPayload_0 _S16;
-            _S16 = payload_5;
-            myTriangleClosestHit_0(_S16);
+            myTriangleClosestHit_0(payload_5);
             break;
         }
     case uint(2):
         {
-            MyRayPayload_0 _S17;
-            _S17 = payload_5;
-            myProceduralClosestHit_0(_S17, committedProceduralAttrs_0);
+            myProceduralClosestHit_0(payload_5, committedProceduralAttrs_0);
             break;
         }
     case uint(0):
         {
-            MyRayPayload_0 _S18;
-            _S18 = payload_5;
-            myMiss_0(_S18);
+            myMiss_0(payload_5);
             break;
         }
     default:
diff --git a/tests/slang-extension/atomic-float-byte-address-buffer-cross.slang.glsl b/tests/slang-extension/atomic-float-byte-address-buffer-cross.slang.glsl
index f5f575287..139d55518 100644
--- a/tests/slang-extension/atomic-float-byte-address-buffer-cross.slang.glsl
+++ b/tests/slang-extension/atomic-float-byte-address-buffer-cross.slang.glsl
@@ -3,17 +3,12 @@
 layout(row_major) uniform;
 layout(row_major) buffer;
 
-#line 10 "tests/slang-extension/atomic-float-byte-address-buffer-cross.slang"
 layout(std430, binding = 1) buffer _S1 {
     float _data[];
 } anotherBuffer_0;
-
-#line 60 "hlsl"
 layout(std430, binding = 0) buffer _S2 {
     float _data[];
 } _S3;
-
-#line 18 "tests/slang-extension/atomic-float-byte-address-buffer-cross.slang"
 void RWByteAddressBuffer_InterlockedAddF32_0(uint _S4, float _S5, out float _S6)
 {
     uint _S7 = _S4 / uint(4);
@@ -29,20 +24,15 @@ void RWByteAddressBuffer_InterlockedAddF32_1(uint _S9, float _S10)
     return;
 }
 
-
-#line 13
-layout(local_size_x = 16, local_size_y = 1, local_size_z = 1) in;void main()
+layout(local_size_x = 16, local_size_y = 1, local_size_z = 1) in;
+void main()
 {
     uint tid_0 = gl_GlobalInvocationID.x;
     int idx_0 = int(tid_0 & uint(3) ^ tid_0 >> 2);
-
     float delta_0 = ((anotherBuffer_0)._data[(uint(idx_0 & 3))]);
-
-#line 21
-    float _S13;
-    RWByteAddressBuffer_InterlockedAddF32_0(uint(idx_0 << 2), 1.00000000000000000000, _S13);
+    float previousValue_0;
+    previousValue_0 = float(0);
+    RWByteAddressBuffer_InterlockedAddF32_0(uint(idx_0 << 2), 1.00000000000000000000, previousValue_0);
     RWByteAddressBuffer_InterlockedAddF32_1(uint(int(tid_0 >> 2) << 2), delta_0);
-
-#line 13
     return;
-}
\ No newline at end of file
+}
diff --git a/tests/vkray/callable-caller.slang.glsl b/tests/vkray/callable-caller.slang.glsl
index b0d174381..91b788655 100644
--- a/tests/vkray/callable-caller.slang.glsl
+++ b/tests/vkray/callable-caller.slang.glsl
@@ -1,30 +1,18 @@
+//TEST_IGNORE_FILE:
 #version 460
-
+#extension GL_NV_ray_tracing : require
 layout(row_major) uniform;
 layout(row_major) buffer;
-#extension GL_NV_ray_tracing : require
-
-#define tmp_ubo         _S1
-#define tmp_launchid    _S2
-#define tmp_luanchidf   _S3
-#define tmp_launchsize  _S4
-#define tmp_launchpos   _S5
-#define tmp_shaderidx   _S6
-#define tmp_payload     _S7
-#define tmp_launchid2   _S8
-
 struct SLANG_ParameterGroup_C_0
 {
     uint shaderIndex_0;
 };
 
 layout(binding = 0)
-layout(std140)
-uniform tmp_ubo
+layout(std140) uniform _S1
 {
     SLANG_ParameterGroup_C_0 _data;
 } C_0;
-
 struct MaterialPayload_0
 {
     vec4 albedo_0;
@@ -32,15 +20,10 @@ struct MaterialPayload_0
 };
 
 layout(location = 0)
-rayPayloadNV MaterialPayload_0 p_0;
-
-layout(rgba32f)
-layout(binding = 1)
-uniform image2D gImage_0;
+rayPayloadNV
+MaterialPayload_0 p_0;
 
-void CallShader_0(
-    uint shaderIndex_1,
-    inout MaterialPayload_0 payload_0)
+void CallShader_0(uint shaderIndex_1, inout MaterialPayload_0 payload_0)
 {
     p_0 = payload_0;
     executeCallableNV(shaderIndex_1, (0));
@@ -48,30 +31,21 @@ void CallShader_0(
     return;
 }
 
+layout(rgba32f)
+layout(binding = 1)
+uniform image2D gImage_0;
+
 void main()
 {
     MaterialPayload_0 payload_1;
     payload_1.albedo_0 = vec4(0);
-
-    uvec3 tmp_launchid = gl_LaunchIDNV;
-    vec2 tmp_luanchidf = vec2(tmp_launchid.xy);
-
-    uvec3 tmp_launchsize = gl_LaunchSizeNV;
-    vec2 tmp_launchpos = tmp_luanchidf / vec2(tmp_launchsize.xy);
-
-    payload_1.uv_0 = tmp_launchpos;
-
-    uint tmp_shaderidx = C_0._data.shaderIndex_0;
-
-    MaterialPayload_0 tmp_payload;
-    tmp_payload = payload_1;
-    CallShader_0(tmp_shaderidx, tmp_payload);
-    payload_1 = tmp_payload;
-
-    uvec3 tmp_launchid2 = gl_LaunchIDNV;
-    imageStore(
-        gImage_0,
-        ivec2(tmp_launchid2.xy),
-        payload_1.albedo_0);
+    uvec3 _S2 = ((gl_LaunchIDNV));
+    vec2 _S3 = vec2(_S2.xy);
+    uvec3 _S4 = ((gl_LaunchSizeNV));
+    vec2 _S5 = _S3 / vec2(_S4.xy);
+    payload_1.uv_0 = _S5;
+    CallShader_0(C_0._data.shaderIndex_0, payload_1);
+    uvec3 _S6 = ((gl_LaunchIDNV));
+    imageStore((gImage_0), ivec2((_S6.xy)), payload_1.albedo_0);
     return;
 }
diff --git a/tests/vkray/intersection.slang.glsl b/tests/vkray/intersection.slang.glsl
index 66846d993..ac95432dd 100644
--- a/tests/vkray/intersection.slang.glsl
+++ b/tests/vkray/intersection.slang.glsl
@@ -1,19 +1,8 @@
 //TEST_IGNORE_FILE:
 #version 460
-
 #extension GL_NV_ray_tracing : require
-
-#define tmp_ubo _S1
-#define tmp_reportHit _S2
-#define tmp_origin _S3
-#define tmp_direction _S4
-#define tmp_tmin _S5
-#define tmp_tmax _S6
-#define tmp_thit _S7
-#define tmp_hitattrs _S8
-#define tmp_dithit _S9
-#define tmp_reportresult _S10
-
+layout(row_major) uniform;
+layout(row_major) buffer;
 struct Sphere_0
 {
     vec3 position_0;
@@ -26,12 +15,10 @@ struct SLANG_ParameterGroup_U_0
 };
 
 layout(binding = 0)
-layout(std140)
-uniform tmp_ubo
+layout(std140) uniform _S1
 {
     SLANG_ParameterGroup_U_0 _data;
 } U_0;
-
 struct RayDesc_0
 {
     vec3 Origin_0;
@@ -45,54 +32,43 @@ struct SphereHitAttributes_0
     vec3 normal_0;
 };
 
-bool rayIntersectsSphere_0(
-    RayDesc_0 ray_0,
-    Sphere_0 sphere_0,
-    out float                   tHit_0,
-    out SphereHitAttributes_0   attrs_0)
+bool rayIntersectsSphere_0(RayDesc_0 ray_0, Sphere_0 sphere_0, out float tHit_0, out SphereHitAttributes_0 attrs_0)
 {
     tHit_0 = sphere_0.radius_0;
     attrs_0.normal_0 = sphere_0.position_0;
     return tHit_0 >= ray_0.TMin_0;
 }
 
-hitAttributeNV SphereHitAttributes_0 a_0;
+hitAttributeNV
+SphereHitAttributes_0 a_0;
 
 bool ReportHit_0(float tHit_1, uint hitKind_0, SphereHitAttributes_0 attributes_0)
 {
     a_0 = attributes_0;
-    bool tmp_reportHit = reportIntersectionNV(tHit_1, hitKind_0);
-    return tmp_reportHit;
+    bool _S2 = reportIntersectionNV(tHit_1, hitKind_0);
+    return _S2;
 }
 
 void main()
 {
     RayDesc_0 ray_1;
-
-    vec3 tmp_origin = gl_ObjectRayOriginNV;
-    ray_1.Origin_0 = tmp_origin;
-
-    vec3 tmp_direction = gl_ObjectRayDirectionNV;
-    ray_1.Direction_0 = tmp_direction;
-
-    float tmp_tmin = gl_RayTminNV;
-    ray_1.TMin_0 = tmp_tmin;
-
-    float tmp_tmax = gl_RayTmaxNV;
-    ray_1.TMax_0 = tmp_tmax;
-
-    float tmp_thit;
-    SphereHitAttributes_0 tmp_hitattrs;
-    bool tmp_dithit = rayIntersectsSphere_0(ray_1, U_0._data.gSphere_0, tmp_thit, tmp_hitattrs);
-
-    float tHit_2 = tmp_thit;
-    SphereHitAttributes_0 attrs_1 = tmp_hitattrs;
-
-    if(tmp_dithit)
+    vec3 _S3 = ((gl_ObjectRayOriginNV));
+    ray_1.Origin_0 = _S3;
+    vec3 _S4 = ((gl_ObjectRayDirectionNV));
+    ray_1.Direction_0 = _S4;
+    float _S5 = ((gl_RayTminNV));
+    ray_1.TMin_0 = _S5;
+    float _S6 = ((gl_RayTmaxNV));
+    ray_1.TMax_0 = _S6;
+    float tHit_2;
+    SphereHitAttributes_0 attrs_1;
+    bool _S7 = rayIntersectsSphere_0(ray_1, U_0._data.gSphere_0, tHit_2, attrs_1);
+    if(_S7)
+    {
+        bool _S8 = ReportHit_0(tHit_2, uint(0), attrs_1);
+    }
+    else
     {
-        bool tmp_reportresult = ReportHit_0(tHit_2, (uint((0))), attrs_1);
     }
-
     return;
 }
-
diff --git a/tests/vkray/raygen.slang.glsl b/tests/vkray/raygen.slang.glsl
index 79162be9f..f8b97973b 100644
--- a/tests/vkray/raygen.slang.glsl
+++ b/tests/vkray/raygen.slang.glsl
@@ -1,60 +1,16 @@
 //TEST_IGNORE_FILE:
 #version 460
-
-layout(row_major) uniform;
-
-#if USE_NV_RT
-#extension GL_NV_ray_tracing : require
-#define accelerationStructureEXT accelerationStructureNV
-#define callableDataInEXT callableDataInNV
-#define gl_LaunchIDEXT gl_LaunchIDNV
-#define hitAttributeEXT hitAttributeNV
-#define ignoreIntersectionEXT ignoreIntersectionNV
-#define rayPayloadInEXT rayPayloadInNV
-#define terminateRayEXT terminateRayNV
-#define traceRayEXT traceNV
-#else
 #extension GL_EXT_ray_tracing : require
-#endif
-
-#define TRACING_EPSILON 1e-6
-
-#define tmp_ubo             _S1
-#define tmp_saturate        _S2
-#define tmp_launchID_x      _S3
-#define tmp_add_x           _S4
-#define tmp_launchSize_x    _S5
-#define tmp_div_x           _S6
-#define tmp_launchID_y      _S7
-#define tmp_add_y           _S8
-#define tmp_launchSize_y    _S9
-#define tmp_div_y           _S10
-#define tmp_tex_pos         _S11
-#define tmp_tex_nrm         _S12
-#define tmp_light_invDist   _S13
-#define tmp_trace_A         _S14
-#define tmp_trace_B         _S15
-#define tmp_trace_C         _S16
-#define tmp_trace_D         _S17
-#define tmp_trace_E         _S18
-#define tmp_trace_ray       _S19
-#define tmp_trace_payload   _S20
-#define tmp_color           _S21
-#define tmp_dot             _S22
-#define tmp_sat             _S23
-#define tmp_trace2_A        _S24
-#define tmp_trace2_B        _S25
-#define tmp_trace2_C        _S26
-#define tmp_trace2_D        _S27
-#define tmp_trace2_E        _S28
-#define tmp_trace2_ray      _S39
-#define tmp_trace2_payload  _S30
-#define tmp_storeIdx        _S31
+layout(row_major) uniform;
+layout(row_major) buffer;
+layout(binding = 0)
+uniform texture2D samplerPosition_0;
 
+layout(binding = 2)
+uniform sampler sampler_0;
 
-layout(binding = 0) uniform texture2D samplerPosition_0;
-layout(binding = 2) uniform sampler sampler_0;
-layout(binding = 1) uniform texture2D samplerNormal_0;
+layout(binding = 1)
+uniform texture2D samplerNormal_0;
 
 struct Light_0
 {
@@ -62,8 +18,6 @@ struct Light_0
     vec4 color_0;
 };
 
-#define NUM_LIGHTS 17
-
 struct Uniforms_0
 {
     Light_0 light_0;
@@ -73,26 +27,18 @@ struct Uniforms_0
 };
 
 layout(binding = 3)
-layout(std140) uniform tmp_ubo
+layout(std140) uniform _S1
 {
     Uniforms_0 _data;
 } ubo_0;
-
-layout(binding = 5) uniform accelerationStructureEXT as_0;
-
 struct ShadowRay_0
 {
     float hitDistance_0;
 };
-layout(location = 0) rayPayloadEXT ShadowRay_0 p_0;
 
-struct ReflectionRay_0
-{
-    float color_1;
-};
-layout(location = 1) rayPayloadEXT ReflectionRay_0 p_1;
-
-layout(rgba32f) layout(binding = 4) uniform image2D outputImage_0;
+layout(location = 0)
+rayPayloadEXT
+ShadowRay_0 p_0;
 
 struct RayDesc_0
 {
@@ -102,141 +48,88 @@ struct RayDesc_0
     float TMax_0;
 };
 
-void TraceRay_0(
-    accelerationStructureEXT AccelerationStructure_0,
-    uint RayFlags_0,
-    uint InstanceInclusionMask_0,
-    uint RayContributionToHitGroupIndex_0,
-    uint MultiplierForGeometryContributionToHitGroupIndex_0,
-    uint MissShaderIndex_0,
-    RayDesc_0 Ray_0,
-    inout ShadowRay_0 Payload_0)
+void TraceRay_0(accelerationStructureEXT AccelerationStructure_0, uint RayFlags_0, uint InstanceInclusionMask_0, uint RayContributionToHitGroupIndex_0, uint MultiplierForGeometryContributionToHitGroupIndex_0, uint MissShaderIndex_0, RayDesc_0 Ray_0, inout ShadowRay_0 Payload_0)
 {
     p_0 = Payload_0;
-    traceRayEXT(
-        AccelerationStructure_0,
-        RayFlags_0,
-        InstanceInclusionMask_0,
-        RayContributionToHitGroupIndex_0,
-        MultiplierForGeometryContributionToHitGroupIndex_0,
-        MissShaderIndex_0,
-        Ray_0.Origin_0,
-        Ray_0.TMin_0,
-        Ray_0.Direction_0,
-        Ray_0.TMax_0,
-        0);
+    traceRayEXT(AccelerationStructure_0, RayFlags_0, InstanceInclusionMask_0, RayContributionToHitGroupIndex_0, MultiplierForGeometryContributionToHitGroupIndex_0, MissShaderIndex_0, Ray_0.Origin_0, Ray_0.TMin_0, Ray_0.Direction_0, Ray_0.TMax_0, (0));
     Payload_0 = p_0;
     return;
 }
 
-void TraceRay_1(
-    accelerationStructureEXT AccelerationStructure_1,
-    uint RayFlags_1,
-    uint InstanceInclusionMask_1,
-    uint RayContributionToHitGroupIndex_1,
-    uint MultiplierForGeometryContributionToHitGroupIndex_1,
-    uint MissShaderIndex_1,
-    RayDesc_0 Ray_1,
-    inout ReflectionRay_0 Payload_1)
+struct ReflectionRay_0
+{
+    float color_1;
+};
+
+layout(location = 1)
+rayPayloadEXT
+ReflectionRay_0 p_1;
+
+void TraceRay_1(accelerationStructureEXT AccelerationStructure_1, uint RayFlags_1, uint InstanceInclusionMask_1, uint RayContributionToHitGroupIndex_1, uint MultiplierForGeometryContributionToHitGroupIndex_1, uint MissShaderIndex_1, RayDesc_0 Ray_1, inout ReflectionRay_0 Payload_1)
 {
     p_1 = Payload_1;
-    traceRayEXT(
-        AccelerationStructure_1,
-        RayFlags_1,
-        InstanceInclusionMask_1,
-        RayContributionToHitGroupIndex_1,
-        MultiplierForGeometryContributionToHitGroupIndex_1,
-        MissShaderIndex_1,
-        Ray_1.Origin_0,
-        Ray_1.TMin_0,
-        Ray_1.Direction_0,
-        Ray_1.TMax_0,
-        1);
+    traceRayEXT(AccelerationStructure_1, RayFlags_1, InstanceInclusionMask_1, RayContributionToHitGroupIndex_1, MultiplierForGeometryContributionToHitGroupIndex_1, MissShaderIndex_1, Ray_1.Origin_0, Ray_1.TMin_0, Ray_1.Direction_0, Ray_1.TMax_0, (1));
     Payload_1 = p_1;
     return;
 }
 
+layout(binding = 5)
+uniform accelerationStructureEXT as_0;
+
 float saturate_0(float x_0)
 {
-    float tmp_saturate = clamp(x_0, float(0), float(1));
-    return tmp_saturate;
+    float _S2 = clamp(x_0, float(0), float(1));
+    return _S2;
 }
 
-void main() 
+layout(rgba32f)
+layout(binding = 4)
+uniform image2D outputImage_0;
+
+void main()
 {
     float atten_0;
-
-    uvec3 tmp_launchID_x = gl_LaunchIDEXT;
-    float tmp_add_x = float(tmp_launchID_x.x) + 0.5;
-    uvec3 tmp_launchSize_x = gl_LaunchSizeEXT;
-    float tmp_div_x = tmp_add_x / float(tmp_launchSize_x.x);
-
-    uvec3 tmp_launchID_y = gl_LaunchIDEXT;
-    float tmp_add_y = float(tmp_launchID_y.y) + 0.5;
-    uvec3 tmp_launchSize_y = gl_LaunchSizeEXT;
-    float tmp_div_y = tmp_add_y / float(tmp_launchSize_y.y);
-    vec2 inUV_0 = vec2(tmp_div_x, tmp_div_y);
-    
-    vec4 tmp_tex_pos = texture(sampler2D(samplerPosition_0, sampler_0), inUV_0);
-    vec3 P_0 = tmp_tex_pos.xyz;
-
-    vec4 tmp_tex_nrm = texture(sampler2D(samplerNormal_0, sampler_0), inUV_0);
-    vec3 N_0 = tmp_tex_nrm.xyz * 2.0 - 1.0;
-
+    uvec3 _S3 = ((gl_LaunchIDEXT));
+    float _S4 = float(_S3.x) + 0.50000000000000000000;
+    uvec3 _S5 = ((gl_LaunchSizeEXT));
+    float _S6 = _S4 / float(_S5.x);
+    uvec3 _S7 = ((gl_LaunchIDEXT));
+    float _S8 = float(_S7.y) + 0.50000000000000000000;
+    uvec3 _S9 = ((gl_LaunchSizeEXT));
+    float _S10 = _S8 / float(_S9.y);
+    vec2 inUV_0 = vec2(_S6, _S10);
+    vec4 _S11 = (texture(sampler2D(samplerPosition_0,sampler_0), (inUV_0)));
+    vec3 P_0 = _S11.xyz;
+    vec4 _S12 = (texture(sampler2D(samplerNormal_0,sampler_0), (inUV_0)));
+    vec3 N_0 = _S12.xyz * 2.00000000000000000000 - 1.00000000000000000000;
     vec3 lightDelta_0 = ubo_0._data.light_0.position_0.xyz - P_0;
     float lightDist_0 = length(lightDelta_0);
     vec3 L_0 = normalize(lightDelta_0);
-
-    float tmp_light_invDist = 1.0 / (lightDist_0 * lightDist_0);
-
+    float _S13 = 1.00000000000000000000 / (lightDist_0 * lightDist_0);
     RayDesc_0 ray_0;
     ray_0.Origin_0 = P_0;
-    ray_0.TMin_0 = TRACING_EPSILON;
+    ray_0.TMin_0 = 0.00000100000000000000;
     ray_0.Direction_0 = lightDelta_0;
     ray_0.TMax_0 = lightDist_0;
-
     ShadowRay_0 shadowRay_0;
     shadowRay_0.hitDistance_0 = float(0);
-    const uint tmp_trace_A = uint(1);
-    const uint tmp_trace_B = uint(0xFF);
-    const uint tmp_trace_C = uint(0);
-    const uint tmp_trace_D = uint(0);
-    const uint tmp_trace_E = uint(2);
-
-    RayDesc_0 tmp_trace_ray = ray_0;
-    ShadowRay_0 tmp_trace_payload;
-    tmp_trace_payload = shadowRay_0;
-    TraceRay_0(as_0, tmp_trace_A, tmp_trace_B, tmp_trace_C, tmp_trace_D, tmp_trace_E, tmp_trace_ray, tmp_trace_payload);
-    shadowRay_0 = tmp_trace_payload;
-
-    ReflectionRay_0 reflectionRay_0;
+    TraceRay_0(as_0, uint(1), uint(255), uint(0), uint(0), uint(2), ray_0, shadowRay_0);
     if(shadowRay_0.hitDistance_0 < lightDist_0)
     {
-        atten_0 = (0.00000000000000000000);
+        atten_0 = 0.00000000000000000000;
     }
     else
     {
-        atten_0 = tmp_light_invDist;
+        atten_0 = _S13;
     }
-
-    vec3 tmp_color = ubo_0._data.light_0.color_0.xyz;
-    float tmp_dot = dot(N_0, L_0);
-    float tmp_sat = saturate_0(tmp_dot);
-    vec3 color_2 = (tmp_color * tmp_sat) * atten_0;
-
-    const uint tmp_trace2_A = uint(1);
-    const uint tmp_trace2_B = uint(255);
-    const uint tmp_trace2_C = uint(0);
-    const uint tmp_trace2_D = uint(0);
-    const uint tmp_trace2_E = uint(2);
-    RayDesc_0 tmp_trace2_ray = ray_0;
-    ReflectionRay_0 tmp_trace2_payload;
-    tmp_trace2_payload = reflectionRay_0;
-    TraceRay_1(as_0, tmp_trace2_A, tmp_trace2_B, tmp_trace2_C, tmp_trace2_D, tmp_trace2_E, tmp_trace2_ray, tmp_trace2_payload);
-
-    vec3 color_3 = color_2 + tmp_trace2_payload.color_1;
-
-    uvec3 tmp_storeIdx = gl_LaunchIDEXT;
-    imageStore(outputImage_0, ivec2(uvec2(ivec2(tmp_storeIdx.xy))), vec4(color_3, 1.0));
+    vec3 _S14 = ubo_0._data.light_0.color_0.xyz;
+    float _S15 = dot(N_0, L_0);
+    float _S16 = saturate_0(_S15);
+    vec3 color_2 = _S14 * _S16 * atten_0;
+    ReflectionRay_0 reflectionRay_0;
+    TraceRay_1(as_0, uint(1), uint(255), uint(0), uint(0), uint(2), ray_0, reflectionRay_0);
+    vec3 color_3 = color_2 + reflectionRay_0.color_1;
+    uvec3 _S17 = ((gl_LaunchIDEXT));
+    imageStore((outputImage_0), ivec2((uvec2(ivec2(_S17.xy)))), vec4(color_3, 1.00000000000000000000));
     return;
 }