clang  6.0.0svn
PPC.cpp
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1 //===--- PPC.cpp - PPC Helpers for Tools ------------------------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 #include "PPC.h"
11 #include "ToolChains/CommonArgs.h"
12 #include "clang/Driver/Driver.h"
14 #include "clang/Driver/Options.h"
15 #include "llvm/ADT/StringSwitch.h"
16 #include "llvm/Option/ArgList.h"
17 
18 using namespace clang::driver;
19 using namespace clang::driver::tools;
20 using namespace clang;
21 using namespace llvm::opt;
22 
23 /// getPPCTargetCPU - Get the (LLVM) name of the PowerPC cpu we are targeting.
24 std::string ppc::getPPCTargetCPU(const ArgList &Args) {
25  if (Arg *A = Args.getLastArg(clang::driver::options::OPT_mcpu_EQ)) {
26  StringRef CPUName = A->getValue();
27 
28  if (CPUName == "native") {
29  std::string CPU = llvm::sys::getHostCPUName();
30  if (!CPU.empty() && CPU != "generic")
31  return CPU;
32  else
33  return "";
34  }
35 
36  return llvm::StringSwitch<const char *>(CPUName)
37  .Case("common", "generic")
38  .Case("440", "440")
39  .Case("440fp", "440")
40  .Case("450", "450")
41  .Case("601", "601")
42  .Case("602", "602")
43  .Case("603", "603")
44  .Case("603e", "603e")
45  .Case("603ev", "603ev")
46  .Case("604", "604")
47  .Case("604e", "604e")
48  .Case("620", "620")
49  .Case("630", "pwr3")
50  .Case("G3", "g3")
51  .Case("7400", "7400")
52  .Case("G4", "g4")
53  .Case("7450", "7450")
54  .Case("G4+", "g4+")
55  .Case("750", "750")
56  .Case("970", "970")
57  .Case("G5", "g5")
58  .Case("a2", "a2")
59  .Case("a2q", "a2q")
60  .Case("e500mc", "e500mc")
61  .Case("e5500", "e5500")
62  .Case("power3", "pwr3")
63  .Case("power4", "pwr4")
64  .Case("power5", "pwr5")
65  .Case("power5x", "pwr5x")
66  .Case("power6", "pwr6")
67  .Case("power6x", "pwr6x")
68  .Case("power7", "pwr7")
69  .Case("power8", "pwr8")
70  .Case("power9", "pwr9")
71  .Case("pwr3", "pwr3")
72  .Case("pwr4", "pwr4")
73  .Case("pwr5", "pwr5")
74  .Case("pwr5x", "pwr5x")
75  .Case("pwr6", "pwr6")
76  .Case("pwr6x", "pwr6x")
77  .Case("pwr7", "pwr7")
78  .Case("pwr8", "pwr8")
79  .Case("pwr9", "pwr9")
80  .Case("powerpc", "ppc")
81  .Case("powerpc64", "ppc64")
82  .Case("powerpc64le", "ppc64le")
83  .Default("");
84  }
85 
86  return "";
87 }
88 
89 const char *ppc::getPPCAsmModeForCPU(StringRef Name) {
90  return llvm::StringSwitch<const char *>(Name)
91  .Case("pwr7", "-mpower7")
92  .Case("power7", "-mpower7")
93  .Case("pwr8", "-mpower8")
94  .Case("power8", "-mpower8")
95  .Case("ppc64le", "-mpower8")
96  .Case("pwr9", "-mpower9")
97  .Case("power9", "-mpower9")
98  .Default("-many");
99 }
100 
101 void ppc::getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple,
102  const ArgList &Args,
103  std::vector<StringRef> &Features) {
104  handleTargetFeaturesGroup(Args, Features, options::OPT_m_ppc_Features_Group);
105 
107  if (FloatABI == ppc::FloatABI::Soft)
108  Features.push_back("-hard-float");
109 }
110 
111 ppc::FloatABI ppc::getPPCFloatABI(const Driver &D, const ArgList &Args) {
113  if (Arg *A =
114  Args.getLastArg(options::OPT_msoft_float, options::OPT_mhard_float,
115  options::OPT_mfloat_abi_EQ)) {
116  if (A->getOption().matches(options::OPT_msoft_float))
117  ABI = ppc::FloatABI::Soft;
118  else if (A->getOption().matches(options::OPT_mhard_float))
119  ABI = ppc::FloatABI::Hard;
120  else {
121  ABI = llvm::StringSwitch<ppc::FloatABI>(A->getValue())
122  .Case("soft", ppc::FloatABI::Soft)
123  .Case("hard", ppc::FloatABI::Hard)
124  .Default(ppc::FloatABI::Invalid);
125  if (ABI == ppc::FloatABI::Invalid && !StringRef(A->getValue()).empty()) {
126  D.Diag(clang::diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args);
127  ABI = ppc::FloatABI::Hard;
128  }
129  }
130  }
131 
132  // If unspecified, choose the default based on the platform.
133  if (ABI == ppc::FloatABI::Invalid) {
134  ABI = ppc::FloatABI::Hard;
135  }
136 
137  return ABI;
138 }
139 
140 bool ppc::hasPPCAbiArg(const ArgList &Args, const char *Value) {
141  Arg *A = Args.getLastArg(options::OPT_mabi_EQ);
142  return A && (A->getValue() == StringRef(Value));
143 }
const char * getPPCAsmModeForCPU(StringRef Name)
Definition: PPC.cpp:89
void handleTargetFeaturesGroup(const llvm::opt::ArgList &Args, std::vector< StringRef > &Features, llvm::opt::OptSpecifier Group)
DiagnosticBuilder Diag(unsigned DiagID) const
Definition: Driver.h:116
FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args)
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
Definition: Driver.h:65
bool hasPPCAbiArg(const llvm::opt::ArgList &Args, const char *Value)
std::string getPPCTargetCPU(const llvm::opt::ArgList &Args)
Dataflow Directional Tag Classes.
void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple, const llvm::opt::ArgList &Args, std::vector< llvm::StringRef > &Features)