diff options
Diffstat (limited to 'src/gallium/drivers/radeon/AMDILIntrinsicInfo.cpp')
| -rw-r--r-- | src/gallium/drivers/radeon/AMDILIntrinsicInfo.cpp | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeon/AMDILIntrinsicInfo.cpp b/src/gallium/drivers/radeon/AMDILIntrinsicInfo.cpp new file mode 100644 index 00000000000..75729ac01a3 --- /dev/null +++ b/src/gallium/drivers/radeon/AMDILIntrinsicInfo.cpp @@ -0,0 +1,190 @@ +//===- AMDILIntrinsicInfo.cpp - AMDIL Intrinsic Information ------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//==-----------------------------------------------------------------------===// +// +// This file contains the AMDIL Implementation of the IntrinsicInfo class. +// +//===-----------------------------------------------------------------------===// + +#include "AMDILIntrinsicInfo.h" +#include "AMDIL.h" +#include "AMDILTargetMachine.h" +#include "llvm/DerivedTypes.h" +#include "llvm/Intrinsics.h" +#include "llvm/Module.h" + +using namespace llvm; + +#define GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN +#include "AMDILGenIntrinsics.inc" +#undef GET_LLVM_INTRINSIC_FOR_GCC_BUILTIN + +AMDILIntrinsicInfo::AMDILIntrinsicInfo(AMDILTargetMachine *tm) + : TargetIntrinsicInfo(), mTM(tm) +{ +} + +std::string +AMDILIntrinsicInfo::getName(unsigned int IntrID, Type **Tys, + unsigned int numTys) const +{ + static const char* const names[] = { +#define GET_INTRINSIC_NAME_TABLE +#include "AMDILGenIntrinsics.inc" +#undef GET_INTRINSIC_NAME_TABLE + }; + + //assert(!isOverloaded(IntrID) + //&& "AMDIL Intrinsics are not overloaded"); + if (IntrID < Intrinsic::num_intrinsics) { + return 0; + } + assert(IntrID < AMDGPUIntrinsic::num_AMDIL_intrinsics + && "Invalid intrinsic ID"); + + std::string Result(names[IntrID - Intrinsic::num_intrinsics]); + return Result; +} + + static bool +checkTruncation(const char *Name, unsigned int& Len) +{ + const char *ptr = Name + (Len - 1); + while(ptr != Name && *ptr != '_') { + --ptr; + } + // We don't want to truncate on atomic instructions + // but we do want to enter the check Truncation + // section so that we can translate the atomic + // instructions if we need to. + if (!strncmp(Name, "__atom", 6)) { + return true; + } + if (strstr(ptr, "i32") + || strstr(ptr, "u32") + || strstr(ptr, "i64") + || strstr(ptr, "u64") + || strstr(ptr, "f32") + || strstr(ptr, "f64") + || strstr(ptr, "i16") + || strstr(ptr, "u16") + || strstr(ptr, "i8") + || strstr(ptr, "u8")) { + Len = (unsigned int)(ptr - Name); + return true; + } + return false; +} + +// We don't want to support both the OpenCL 1.0 atomics +// and the 1.1 atomics with different names, so we translate +// the 1.0 atomics to the 1.1 naming here if needed. +static char* +atomTranslateIfNeeded(const char *Name, unsigned int Len) +{ + char *buffer = NULL; + if (strncmp(Name, "__atom_", 7)) { + // If we are not starting with __atom_, then + // go ahead and continue on with the allocation. + buffer = new char[Len + 1]; + memcpy(buffer, Name, Len); + } else { + buffer = new char[Len + 3]; + memcpy(buffer, "__atomic_", 9); + memcpy(buffer + 9, Name + 7, Len - 7); + Len += 2; + } + buffer[Len] = '\0'; + return buffer; +} + +unsigned int +AMDILIntrinsicInfo::lookupName(const char *Name, unsigned int Len) const +{ +#define GET_FUNCTION_RECOGNIZER +#include "AMDILGenIntrinsics.inc" +#undef GET_FUNCTION_RECOGNIZER + AMDGPUIntrinsic::ID IntrinsicID + = (AMDGPUIntrinsic::ID)Intrinsic::not_intrinsic; + if (checkTruncation(Name, Len)) { + char *buffer = atomTranslateIfNeeded(Name, Len); + IntrinsicID = getIntrinsicForGCCBuiltin("AMDIL", buffer); + delete [] buffer; + } else { + IntrinsicID = getIntrinsicForGCCBuiltin("AMDIL", Name); + } + if (!isValidIntrinsic(IntrinsicID)) { + return 0; + } + if (IntrinsicID != (AMDGPUIntrinsic::ID)Intrinsic::not_intrinsic) { + return IntrinsicID; + } + return 0; +} + +bool +AMDILIntrinsicInfo::isOverloaded(unsigned id) const +{ + // Overload Table +#define GET_INTRINSIC_OVERLOAD_TABLE +#include "AMDILGenIntrinsics.inc" +#undef GET_INTRINSIC_OVERLOAD_TABLE +} + +/// This defines the "getAttributes(ID id)" method. +#define GET_INTRINSIC_ATTRIBUTES +#include "AMDILGenIntrinsics.inc" +#undef GET_INTRINSIC_ATTRIBUTES + +Function* +AMDILIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID, + Type **Tys, + unsigned numTys) const +{ + assert(!isOverloaded(IntrID) && "AMDIL intrinsics are not overloaded"); + AttrListPtr AList = getAttributes((AMDGPUIntrinsic::ID) IntrID); + LLVMContext& Context = M->getContext(); + unsigned int id = IntrID; + Type *ResultTy = NULL; + std::vector<Type*> ArgTys; + bool IsVarArg = false; + +#define GET_INTRINSIC_GENERATOR +#include "AMDILGenIntrinsics.inc" +#undef GET_INTRINSIC_GENERATOR + // We need to add the resource ID argument for atomics. + if (id >= AMDGPUIntrinsic::AMDIL_atomic_add_gi32 + && id <= AMDGPUIntrinsic::AMDIL_atomic_xor_ru32_noret) { + ArgTys.push_back(IntegerType::get(Context, 32)); + } + + return cast<Function>(M->getOrInsertFunction(getName(IntrID), + FunctionType::get(ResultTy, ArgTys, IsVarArg), + AList)); +} + +/// Because the code generator has to support different SC versions, +/// this function is added to check that the intrinsic being used +/// is actually valid. In the case where it isn't valid, the +/// function call is not translated into an intrinsic and the +/// fall back software emulated path should pick up the result. +bool +AMDILIntrinsicInfo::isValidIntrinsic(unsigned int IntrID) const +{ + const AMDILSubtarget *stm = mTM->getSubtargetImpl(); + switch (IntrID) { + default: + return true; + case AMDGPUIntrinsic::AMDIL_convert_f32_i32_rpi: + case AMDGPUIntrinsic::AMDIL_convert_f32_i32_flr: + case AMDGPUIntrinsic::AMDIL_convert_f32_f16_near: + case AMDGPUIntrinsic::AMDIL_convert_f32_f16_neg_inf: + case AMDGPUIntrinsic::AMDIL_convert_f32_f16_plus_inf: + return stm->calVersion() >= CAL_VERSION_SC_139; + }; +} |