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fa21741f38
This brings the compile time of Function.cpp from ~40s down to ~4s for me locally. It also shaves off about 400KB of object file size in a release+asserts build. I also realized that the AMDGPU backend does not have any GCC builtin names to match, so the extra lookup was a no-op. I removed it to silence a zero-length string table array warning. There should be no functional change here. This change really ends the story of PR11951. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@258897 91177308-0d34-0410-b5e6-96231b3b80d8
76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
//===- AMDGPUIntrinsicInfo.cpp - AMDGPU Intrinsic Information ---*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//==-----------------------------------------------------------------------===//
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//
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/// \file
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/// \brief AMDGPU Implementation of the IntrinsicInfo class.
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//
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//===-----------------------------------------------------------------------===//
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#include "AMDGPUIntrinsicInfo.h"
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#include "AMDGPUSubtarget.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Intrinsics.h"
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#include "llvm/IR/Module.h"
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using namespace llvm;
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AMDGPUIntrinsicInfo::AMDGPUIntrinsicInfo()
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: TargetIntrinsicInfo() {}
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static const char *const IntrinsicNameTable[] = {
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#define GET_INTRINSIC_NAME_TABLE
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#include "AMDGPUGenIntrinsics.inc"
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#undef GET_INTRINSIC_NAME_TABLE
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};
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std::string AMDGPUIntrinsicInfo::getName(unsigned IntrID, Type **Tys,
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unsigned numTys) const {
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if (IntrID < Intrinsic::num_intrinsics) {
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return nullptr;
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}
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assert(IntrID < AMDGPUIntrinsic::num_AMDGPU_intrinsics &&
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"Invalid intrinsic ID");
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std::string Result(IntrinsicNameTable[IntrID - Intrinsic::num_intrinsics]);
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return Result;
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}
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unsigned AMDGPUIntrinsicInfo::lookupName(const char *NameData,
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unsigned Len) const {
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StringRef Name(NameData, Len);
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if (!Name.startswith("llvm."))
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return 0; // All intrinsics start with 'llvm.'
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// Look for a name match in our table. If the intrinsic is not overloaded,
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// require an exact match. If it is overloaded, require a prefix match. The
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// AMDGPU enum enum starts at Intrinsic::num_intrinsics.
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int Idx = Intrinsic::lookupLLVMIntrinsicByName(IntrinsicNameTable, Name);
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if (Idx >= 0) {
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bool IsPrefixMatch = Name.size() > strlen(IntrinsicNameTable[Idx]);
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return IsPrefixMatch == isOverloaded(Idx + 1)
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? Intrinsic::num_intrinsics + Idx
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: 0;
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}
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return 0;
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}
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bool AMDGPUIntrinsicInfo::isOverloaded(unsigned id) const {
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// Overload Table
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#define GET_INTRINSIC_OVERLOAD_TABLE
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#include "AMDGPUGenIntrinsics.inc"
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#undef GET_INTRINSIC_OVERLOAD_TABLE
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}
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Function *AMDGPUIntrinsicInfo::getDeclaration(Module *M, unsigned IntrID,
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Type **Tys,
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unsigned numTys) const {
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llvm_unreachable("Not implemented");
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}
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