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44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
//===- SparcSubtarget.cpp - SPARC 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 SPARC specific subclass of TargetSubtarget.
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//
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//===----------------------------------------------------------------------===//
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#include "SparcSubtarget.h"
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#include "SparcGenSubtarget.inc"
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using namespace llvm;
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// FIXME: temporary.
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#include "llvm/Support/CommandLine.h"
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namespace {
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cl::opt<bool> EnableV9("enable-sparc-v9-insts", cl::Hidden,
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cl::desc("Enable V9 instructions in the V8 target"));
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}
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SparcSubtarget::SparcSubtarget(const Module &M, const std::string &FS) {
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// Set the default features.
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IsV9 = false;
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V8DeprecatedInsts = false;
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IsVIS = false;
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// Determine default and user specified characteristics
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std::string CPU = "generic";
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// FIXME: autodetect host here!
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CPU = "v9"; // What is a good way to detect V9?
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// Parse features string.
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ParseSubtargetFeatures(FS, CPU);
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// Unless explicitly enabled, disable the V9 instructions.
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if (!EnableV9)
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IsV9 = false;
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}
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