[llvm] [SPIRV] Add reads from image buffer for shaders. (PR #115178)

[Nathan Gauër via llvm-commits]

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@@ -388,6 +391,12 @@ class SPIRVGlobalRegistry {
   unsigned getScalarOrVectorComponentCount(Register VReg) const;
   unsigned getScalarOrVectorComponentCount(SPIRVType *Type) const;
 
+  // Return the component type in a vector if the argument is associated with
+  // a vector type. Returns the argument itself for a scalar type, and nullptr
+  // for a missing type.
+  SPIRVType *getScalarOrVectorComponentType(Register VReg) const;
+  SPIRVType *getScalarOrVectorComponentType(SPIRVType *Type) const;
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Keenuts wrote:

What shall those return for `OpTypeArray`? The array? the element type? assert?

https://github.com/llvm/llvm-project/pull/115178