SPV: Fix an issue related with using CubeArrayShadow for texture()

SPIRV/GlslangToSpv.cpp

@@ -1901,9 +1901,11 @@ spv::Id TGlslangToSpvTraverser::createImageTextureFunctionCall(glslang::TIntermO
 
     // Check for texture functions other than queries
 
+    bool cubeCompare = sampler.dim == glslang::EsdCube && sampler.arrayed && sampler.shadow;
+
     // check for bias argument
     bool bias = false;
-    if (! cracked.lod && ! cracked.gather && ! cracked.grad && ! cracked.fetch) {
+    if (! cracked.lod && ! cracked.gather && ! cracked.grad && ! cracked.fetch && ! cubeCompare) {
         int nonBiasArgCount = 2;
         if (cracked.offset)
             ++nonBiasArgCount;

Test/baseResults/spv.130.frag.out

@@ -268,7 +268,7 @@ Linked fragment stage:
              124:   15(fvec4) Load 78(i)
              127:    126(ptr) AccessChain 78(i) 125
              128:   14(float) Load 127
-             129:   14(float) ImageSampleDrefImplicitLod 123 124 128 Bias 128
+             129:   14(float) ImageSampleDrefImplicitLod 123 124 128
                               Store 122(f) 129
              132:          84 Load 86(Isca)
              133:   15(fvec4) Load 78(i)

Test/baseResults/spv.140.vert.out

-Error: unable to open input file: spv.140.vert
-Usage: glslangValidator [option]... [file]...
-
-Where: each 'file' ends in .<stage>, where <stage> is one of
-    .conf to provide an optional config file that replaces the default configuration
-          (see -c option below for generating a template)
-    .vert for a vertex shader
-    .tesc for a tessellation control shader
-    .tese for a tessellation evaluation shader
-    .geom for a geometry shader
-    .frag for a fragment shader
-    .comp for a compute shader
-
-Compilation warnings and errors will be printed to stdout.
-
-To get other information, use one of the following options:
-(Each option must be specified separately, but can go anywhere in the command line.)
-  -V  create SPIR-V in file <stage>.spv
-  -H  print human readable form of SPIR-V; turns on -V
-  -E  print pre-processed glsl. Cannot be used with -V, -H or -l.
-  -c  configuration dump; use to create default configuration file (redirect to a .conf file)
-  -d  default to desktop (#version 110) when there is no version in the shader (default is ES version 100)
-  -i  intermediate tree (glslang AST) is printed out
-  -l  link validation of all input files
-  -m  memory leak mode
-  -q  dump reflection query database
-  -r  relaxed semantic error-checking mode
-  -s  silent mode
-  -t  multi-threaded mode
-  -v  print version strings
-  -w  suppress warnings (except as required by #extension : warn)

Test/spv.newTexture.frag

@@ -5,6 +5,7 @@ uniform sampler2DRect sr;
 uniform sampler3D s3D;
 uniform samplerCube sCube;
 uniform samplerCubeShadow sCubeShadow;
+uniform samplerCubeArrayShadow sCubeArrayShadow;
 uniform sampler2DShadow s2DShadow;
 uniform sampler2DArray s2DArray;
 uniform sampler2DArrayShadow s2DArrayShadow;
@@ -35,6 +36,7 @@ out vec4 FragData;
 void main()
 {
     vec4 v = texture(s2D, c2D);
+    v.y += texture(sCubeArrayShadow, c4D, c1D);
     v += textureProj(s3D, c4D);
     v += textureLod(s2DArray, c3D, 1.2);
     v.y += textureOffset(s2DShadow, c3D, ivec2(3), c1D);