Improvements to testing and ABI for CPU (#1057)

* WIP: Improving CPU performance/ABI

* Optionally output code on CPU for groupThreadID and groupID.

* Added ability to set compute dispatch size on command line for render-test.
Dispatch compute tests taking into account dispatch size.
Added test for semantics are working.

* Test using GroupRange.

* Fix problem with adding \n for externa diagnostic - to do it if there isn't a \n at the end. Change the ouput order (put result before) so last value is diagnostic string.

* Made GroupRange the default exposed CPU ABI entry point style.
Removed CPU_EXECUTE test style -as tested via the now cross platform render-test

* Split out execution from setup for execution to improve perf.

* For better code coverage/testing test all styles of CPU compute entry point.

* Improve documentation for ABI changes for CPU code.
Add 'expecting' to error message from review.

* Fix small typos.

4 files changed, 0 insertions, 123 deletions

diff --git a/tests/cross-compile/cpp-execute-simple.slang b/tests/cross-compile/cpp-execute-simple.slang
deleted file mode 100644
index 72c77b653..000000000
--- a/tests/cross-compile/cpp-execute-simple.slang
+++ /dev/null
@@ -1,14 +0,0 @@
-//TEST:CPU_EXECUTE: -profile cs_5_0 -entry computeMain -target sharedlib
-
-//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):dxbinding(0),glbinding(0),out
-RWStructuredBuffer<int> outputBuffer;
-
-
-[numthreads(4, 1, 1)]
-void computeMain(
-    uint3 dispatchThreadID : SV_DispatchThreadID)
-{
-    uint tid = dispatchThreadID.x;
-
-    outputBuffer[tid] = int(tid * tid);
-}
\ No newline at end of file
diff --git a/tests/cross-compile/cpp-execute-simple.slang.expected b/tests/cross-compile/cpp-execute-simple.slang.expected
deleted file mode 100644
index b84777e95..000000000
--- a/tests/cross-compile/cpp-execute-simple.slang.expected
+++ /dev/null
@@ -1 +0,0 @@
-0, 1, 4, 9
diff --git a/tests/cross-compile/cpp-execute.slang b/tests/cross-compile/cpp-execute.slang
deleted file mode 100644
index 2700aa49f..000000000
--- a/tests/cross-compile/cpp-execute.slang
+++ /dev/null
@@ -1,107 +0,0 @@
-//TEST:CPU_EXECUTE: -profile cs_5_0 -entry computeMain -target sharedlib
-
-enum Color
-{
-    Red,
-    Green = 2,
-    Blue,
-}
-
-int test(int val)
-{
-    Color c = Color.Red;
-
-    if(val > 1)
-    {
-        c = Color.Green;
-    }
-
-    if(c == Color.Red)
-    {
-        if(val & 1)
-        {
-            c = Color.Blue;
-        }
-    }
-
-    switch(c)
-    {
-    case Color.Red:
-        val = 1;
-        break;
-
-    case Color.Green:
-        val = 2;
-        break;
-
-    case Color.Blue:
-        val = 3;
-        break;
-
-    default:
-        val = -1;
-        break;
-    }
-
-    return (val << 4) + int(c);
-}
-
-float sum(float a[3])
-{
-    float total = a[0];
-    for (int i = 1; i < 3; ++i)
-    {
-        total += a[i];
-    }
-    return total;
-}
-
-struct Thing
-{
-    int a;
-    float b;
-};
-
-//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):dxbinding(0),glbinding(0),out
-RWStructuredBuffer<int> outputBuffer;
-    
-[numthreads(4, 1, 1)]
-void computeMain(
-    uint3 dispatchThreadID : SV_DispatchThreadID)
-{
-    uint tid = dispatchThreadID.x;
-
-    Thing thing = { 10, -1.0 };
-
-    float array[3] = { thing.a, 2, 3};
-
-    float anotherArray[] = { 1, 2, 5 };
-
-    array[0] += anotherArray[1];
-
-    matrix<float, 2, 3> mat = { { sum(array), 1, 2 }, { 3, 4, 5} };
-    vector<float, 2> vec = { float(tid + 1), float(tid + 2) };
-
-    vector<float, 3> vec2 = max(sin(mul(vec, mat)), float3(1, 2, -1));
-    vector<float, 3> vec3 = mul(vec, mat);
-    
-    float3 vec4 = lerp(vec2, vec3, float3(tid * (1.0f / 4), 1, 1));
-    
-    float3 crossVec = normalize(cross(vec4, vec4));
-    
-    vec2.x = fmod(crossVec.y, crossVec.x);
-    
-    vec2 = fmod(vec2, crossVec);
-    
-    vec2 += (-vec2.zyx) * 2 + crossVec * length(crossVec) + reflect(vec4, normalize(crossVec));
-    
-    vector<bool, 3> z = vec2 > 0;
-
-    int val = (int(tid) + (any(z) ? 1 : 0) + (all(z) ? 2 : 0)) % 100;
-    
-    val = asint(asfloat(asuint(asfloat(val))));
-    
-    val = test(val);
-
-    outputBuffer[tid] = val + int(dot(vec2, vec4));
-}
\ No newline at end of file
diff --git a/tests/cross-compile/cpp-execute.slang.expected b/tests/cross-compile/cpp-execute.slang.expected
deleted file mode 100644
index 65e3ed534..000000000
--- a/tests/cross-compile/cpp-execute.slang.expected
+++ /dev/null
@@ -1 +0,0 @@
--2147483632, -2147483597, -2147483614, -2147483614