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283b399377
behavior based on other files defining DEBUG_TYPE, which means it cannot define DEBUG_TYPE at all. This is actually better IMO as it forces folks to define relevant DEBUG_TYPEs for their files. However, it requires all files that currently use DEBUG(...) to define a DEBUG_TYPE if they don't already. I've updated all such files in LLVM and will do the same for other upstream projects. This still leaves one important change in how LLVM uses the DEBUG_TYPE macro going forward: we need to only define the macro *after* header files have been #include-ed. Previously, this wasn't possible because Debug.h required the macro to be pre-defined. This commit removes that. By defining DEBUG_TYPE after the includes two things are fixed: - Header files that need to provide a DEBUG_TYPE for some inline code can do so by defining the macro before their inline code and undef-ing it afterward so the macro does not escape. - We no longer have rampant ODR violations due to including headers with different DEBUG_TYPE definitions. This may be mostly an academic violation today, but with modules these types of violations are easy to check for and potentially very relevant. Where necessary to suppor headers with DEBUG_TYPE, I have moved the definitions below the includes in this commit. I plan to move the rest of the DEBUG_TYPE macros in LLVM in subsequent commits; this one is big enough. The comments in Debug.h, which were hilariously out of date already, have been updated to reflect the recommended practice going forward. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206822 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
//===- NVPTXSubtarget.cpp - NVPTX Subtarget Information -------------------===//
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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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// This file implements the NVPTX specific subclass of TargetSubtarget.
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//
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//===----------------------------------------------------------------------===//
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#include "NVPTXSubtarget.h"
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#define DEBUG_TYPE "nvptx-subtarget"
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#define GET_SUBTARGETINFO_ENUM
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#define GET_SUBTARGETINFO_TARGET_DESC
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#define GET_SUBTARGETINFO_CTOR
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#include "NVPTXGenSubtargetInfo.inc"
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using namespace llvm;
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// Pin the vtable to this file.
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void NVPTXSubtarget::anchor() {}
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NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU,
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const std::string &FS, bool is64Bit)
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: NVPTXGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit), PTXVersion(0),
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SmVersion(20) {
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Triple T(TT);
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if (T.getOS() == Triple::NVCL)
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drvInterface = NVPTX::NVCL;
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else
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drvInterface = NVPTX::CUDA;
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// Provide the default CPU if none
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std::string defCPU = "sm_20";
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ParseSubtargetFeatures((CPU.empty() ? defCPU : CPU), FS);
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// Get the TargetName from the FS if available
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if (FS.empty() && CPU.empty())
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TargetName = defCPU;
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else if (!CPU.empty())
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TargetName = CPU;
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else
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llvm_unreachable("we are not using FeatureStr");
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// We default to PTX 3.1, but we cannot just default to it in the initializer
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// since the attribute parser checks if the given option is >= the default.
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// So if we set ptx31 as the default, the ptx30 attribute would never match.
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// Instead, we use 0 as the default and manually set 31 if the default is
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// used.
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if (PTXVersion == 0) {
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PTXVersion = 31;
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}
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}
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