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Added flag for disabling HLSL intrinsics #10

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Added flag for disabling HLSL intrinsics #10

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3 changes: 3 additions & 0 deletions include/dxc/Support/HLSLOptions.td
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Expand Up @@ -601,3 +601,6 @@ def rw_decl_global_cb : Flag<["-", "/"], "decl-global-cb">, Group<hlslrewrite_Gr
HelpText<"Collect all global constants outside cbuffer declarations into cbuffer GlobalCB { ... }. Still experimental, not all dependency scenarios handled.">;
// Also removed: compress, decompress, /Gch (child effect), /Gpp (partial precision)
// /Op - no support for preshaders.

def devsh_disable_hlsl_intrinsics : Flag<["-"], "devsh-disable-hlsl-intrinsics">, Group<spirv_Group>, Flags<[CoreOption, DriverOption]>,
HelpText<"Disable HLSL intrinsics">;
1 change: 1 addition & 0 deletions include/dxc/Support/SPIRVOptions.h
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Expand Up @@ -38,6 +38,7 @@ enum class SpirvLayoutRule {
};

struct SpirvCodeGenOptions {
bool devshDisableHLSLIntrinsics;
/// Disable legalization and optimization and emit raw SPIR-V
bool codeGenHighLevel;
bool debugInfoFile;
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2 changes: 2 additions & 0 deletions lib/DxcSupport/HLSLOptions.cpp
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Expand Up @@ -1074,6 +1074,8 @@ int ReadDxcOpts(const OptTable *optionTable, unsigned flagsToInclude,

// SPIRV Change Starts
#ifdef ENABLE_SPIRV_CODEGEN
opts.SpirvOptions.devshDisableHLSLIntrinsics =
Args.hasFlag(OPT_devsh_disable_hlsl_intrinsics, OPT_INVALID, false);
opts.GenSPIRV = Args.hasFlag(OPT_spirv, OPT_INVALID, false);
opts.SpirvOptions.invertY =
Args.hasFlag(OPT_fvk_invert_y, OPT_INVALID, false);
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