b8e1544b9d
The patch adds SPIRVPrepareFunctions pass, which modifies function signatures containing aggregate arguments and/or return values before IR translation. Information about the original signatures is stored in metadata. It is used during call lowering to restore correct SPIR-V types of function arguments and return values. This pass also substitutes some llvm intrinsic calls to function calls, generating the necessary functions in the module, as the SPIRV translator does. The patch also includes changes in other modules, fixing errors and enabling many SPIR-V features that were omitted earlier. And 15 LIT tests are also added to demonstrate the new functionality. Differential Revision: https://reviews.llvm.org/D129730 Co-authored-by: Aleksandr Bezzubikov <zuban32s@gmail.com> Co-authored-by: Michal Paszkowski <michal.paszkowski@outlook.com> Co-authored-by: Andrey Tretyakov <andrey1.tretyakov@intel.com> Co-authored-by: Konrad Trifunovic <konrad.trifunovic@intel.com>
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
//===--- SPIRVCallLowering.h - Call lowering --------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes how to lower LLVM calls to machine code calls.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H
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#define LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H
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#include "SPIRVGlobalRegistry.h"
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#include "llvm/CodeGen/GlobalISel/CallLowering.h"
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namespace llvm {
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class SPIRVGlobalRegistry;
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class SPIRVTargetLowering;
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class SPIRVCallLowering : public CallLowering {
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private:
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// Used to create and assign function, argument, and return type information.
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SPIRVGlobalRegistry *GR;
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public:
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SPIRVCallLowering(const SPIRVTargetLowering &TLI, SPIRVGlobalRegistry *GR);
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// Built OpReturn or OpReturnValue.
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bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
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ArrayRef<Register> VRegs, FunctionLoweringInfo &FLI,
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Register SwiftErrorVReg) const override;
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// Build OpFunction, OpFunctionParameter, and any EntryPoint or Linkage data.
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bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
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ArrayRef<ArrayRef<Register>> VRegs,
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FunctionLoweringInfo &FLI) const override;
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// Build OpCall, or replace with a builtin function.
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bool lowerCall(MachineIRBuilder &MIRBuilder,
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CallLoweringInfo &Info) const override;
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};
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} // end namespace llvm
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#endif // LLVM_LIB_TARGET_SPIRV_SPIRVCALLLOWERING_H
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