[clang] [llvm] [HLSL][DXIL][SPIRV] QuadReadAcrossX intrinsic support (PR #184360)

[Joshua Batista via cfe-commits]

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@@ -3451,6 +3451,105 @@ __attribute__((convergent)) double3 WavePrefixProduct(double3);
 _HLSL_BUILTIN_ALIAS(__builtin_hlsl_wave_prefix_product)
 __attribute__((convergent)) double4 WavePrefixProduct(double4);
 
+//===----------------------------------------------------------------------===//
+// QuadReadAcrossX builtins
+//===----------------------------------------------------------------------===//
+
+_HLSL_16BIT_AVAILABILITY(shadermodel, 6.0)
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bob80905 wrote:

A bug I let in accidentally:
All 16 bit availability macros should have 6.2 as an input, not 6.0.
I've since updated the wave intrinsics I've added with this bug. Please make this update as well.


https://github.com/llvm/llvm-project/pull/184360