Enable SampleCmpLevelZero for all shader profiles.

lib/HLSL/DxilValidation.cpp

@@ -573,12 +573,12 @@ static bool ValidateOpcodeInProfile(DXIL::OpCode opcode,
   // Instructions: StorePatchConstant=106, OutputControlPointID=107
   if (106 <= op && op <= 107)
     return pSM->IsHS();
-  // Instructions: Sample=60, SampleBias=61, SampleCmp=64, SampleCmpLevelZero=65,
+  // Instructions: Sample=60, SampleBias=61, SampleCmp=64,
   // RenderTargetGetSamplePosition=76, RenderTargetGetSampleCount=77,
   // CalculateLOD=81, Discard=82, DerivCoarseX=83, DerivCoarseY=84,
   // DerivFineX=85, DerivFineY=86, EvalSnapped=87, EvalSampleIndex=88,
   // EvalCentroid=89, SampleIndex=90, Coverage=91, InnerCoverage=92
-  if (60 <= op && op <= 61 || 64 <= op && op <= 65 || 76 <= op && op <= 77 || 81 <= op && op <= 92)
+  if (60 <= op && op <= 61 || op == 64 || 76 <= op && op <= 77 || 81 <= op && op <= 92)
     return pSM->IsPS();
   return true;
   // VALOPCODESM-TEXT:END

tools/clang/test/CodeGenHLSL/sampleCmpLZ2.hlsl

@@ -0,0 +1,20 @@
+// RUN: %dxc -E main -T cs_6_0 %s  | FileCheck %s
+
+// CHECK: sampleCmpLevelZero
+
+SamplerComparisonState samp1 : register(s5);
+Texture2D<float4> text1 : register(t3);
+float cmpVal;
+RWBuffer<float4> buf1;
+
+[numthreads(8, 8, 8)]
+void main(uint dtID : SV_DispatchThreadID)
+{
+  uint status;
+  float2 a = buf1[dtID].xy;
+  float4 r = 0;
+  r += text1.SampleCmpLevelZero(samp1, a, cmpVal);
+  r += text1.SampleCmpLevelZero(samp1, a, cmpVal, uint2(-5, 7));
+  r += text1.SampleCmpLevelZero(samp1, a, cmpVal, uint2(-3, 2), status); r += status;
+  buf1[dtID] = r;
+}

tools/clang/unittests/HLSL/CompilerTest.cpp

@@ -453,6 +453,7 @@ public:
   TEST_METHOD(CodeGenSampleBias)
   TEST_METHOD(CodeGenSampleCmp)
   TEST_METHOD(CodeGenSampleCmpLZ)
+  TEST_METHOD(CodeGenSampleCmpLZ2)
   TEST_METHOD(CodeGenSampleGrad)
   TEST_METHOD(CodeGenSampleL)
   TEST_METHOD(CodeGenSaturate1)
@@ -2453,6 +2454,10 @@ TEST_F(CompilerTest, CodeGenSampleCmpLZ) {
   CodeGenTestCheck(L"..\\CodeGenHLSL\\sampleCmpLZ.hlsl");
 }
 
+TEST_F(CompilerTest, CodeGenSampleCmpLZ2) {
+  CodeGenTestCheck(L"..\\CodeGenHLSL\\sampleCmpLZ2.hlsl");
+}
+
 TEST_F(CompilerTest, CodeGenSampleGrad) {
   CodeGenTestCheck(L"..\\CodeGenHLSL\\sampleGrad.hlsl");
 }

utils/hct/hctdb.py

@@ -234,7 +234,7 @@ class db_dxil(object):
             self.name_idx[i].category = "Resources"
         for i in "Sample,SampleBias,SampleLevel,SampleGrad,SampleCmp,SampleCmpLevelZero,Texture2DMSGetSamplePosition,RenderTargetGetSamplePosition,RenderTargetGetSampleCount".split(","):
             self.name_idx[i].category = "Resources - sample"
-        for i in "Sample,SampleBias,SampleCmp,SampleCmpLevelZero,RenderTargetGetSamplePosition,RenderTargetGetSampleCount".split(","):
+        for i in "Sample,SampleBias,SampleCmp,RenderTargetGetSamplePosition,RenderTargetGetSampleCount".split(","):
             self.name_idx[i].shader_models = "p"
         for i in "TextureGather,TextureGatherCmp".split(","):
             self.name_idx[i].category = "Resources - gather"