[Driver] Consolidate tools and toolchains by target platform. (NFC)
Summary:
(This is a move-only refactoring patch. There are no functionality changes.)
This patch splits apart the Clang driver's tool and toolchain implementation
files. Each target platform toolchain is moved to its own file, along with the
closest-related tools. Each target platform toolchain has separate headers and
implementation files, so the hierarchy of classes is unchanged.
There are some remaining shared free functions, mostly from Tools.cpp. Several
of these move to their own architecture-specific files, similar to r296056. Some
of them are only used by a single target platform; since the tools and
toolchains are now together, some helpers now live in a platform-specific file.
The balance are helpers related to manipulating argument lists, so they are now
in a new file pair, CommonArgs.h and .cpp.
I've tried to cluster the code logically, which is fairly straightforward for
most of the target platforms and shared architectures. I think I've made
reasonable choices for these, as well as the various shared helpers; but of
course, I'm happy to hear feedback in the review.
There are some particular things I don't like about this patch, but haven't been
able to find a better overall solution. The first is the proliferation of files:
there are several files that are tiny because the toolchain is not very
different from its base (usually the Gnu tools/toolchain). I think this is
mostly a reflection of the true complexity, though, so it may not be "fixable"
in any reasonable sense. The second thing I don't like are the includes like
"../Something.h". I've avoided this largely by clustering into the current file
structure. However, a few of these includes remain, and in those cases it
doesn't make sense to me to sink an existing file any deeper.
Reviewers: rsmith, mehdi_amini, compnerd, rnk, javed.absar
Subscribers: emaste, jfb, danalbert, srhines, dschuff, jyknight, nemanjai, nhaehnle, mgorny, cfe-commits
Differential Revision: https://reviews.llvm.org/D30372
llvm-svn: 297250
diff --git a/clang/lib/Driver/ToolChains/Arch/Sparc.cpp b/clang/lib/Driver/ToolChains/Arch/Sparc.cpp
new file mode 100644
index 0000000..594ec99
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Arch/Sparc.cpp
@@ -0,0 +1,100 @@
+//===--- Sparc.cpp - Tools Implementations ----------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "Sparc.h"
+#include "clang/Driver/Driver.h"
+#include "clang/Driver/DriverDiagnostic.h"
+#include "clang/Driver/Options.h"
+#include "llvm/ADT/StringSwitch.h"
+#include "llvm/Option/ArgList.h"
+
+using namespace clang::driver;
+using namespace clang::driver::tools;
+using namespace clang;
+using namespace llvm::opt;
+
+const char *sparc::getSparcAsmModeForCPU(StringRef Name,
+ const llvm::Triple &Triple) {
+ if (Triple.getArch() == llvm::Triple::sparcv9) {
+ return llvm::StringSwitch<const char *>(Name)
+ .Case("niagara", "-Av9b")
+ .Case("niagara2", "-Av9b")
+ .Case("niagara3", "-Av9d")
+ .Case("niagara4", "-Av9d")
+ .Default("-Av9");
+ } else {
+ return llvm::StringSwitch<const char *>(Name)
+ .Case("v8", "-Av8")
+ .Case("supersparc", "-Av8")
+ .Case("sparclite", "-Asparclite")
+ .Case("f934", "-Asparclite")
+ .Case("hypersparc", "-Av8")
+ .Case("sparclite86x", "-Asparclite")
+ .Case("sparclet", "-Asparclet")
+ .Case("tsc701", "-Asparclet")
+ .Case("v9", "-Av8plus")
+ .Case("ultrasparc", "-Av8plus")
+ .Case("ultrasparc3", "-Av8plus")
+ .Case("niagara", "-Av8plusb")
+ .Case("niagara2", "-Av8plusb")
+ .Case("niagara3", "-Av8plusd")
+ .Case("niagara4", "-Av8plusd")
+ .Case("leon2", "-Av8")
+ .Case("at697e", "-Av8")
+ .Case("at697f", "-Av8")
+ .Case("leon3", "-Av8")
+ .Case("ut699", "-Av8")
+ .Case("gr712rc", "-Av8")
+ .Case("leon4", "-Av8")
+ .Case("gr740", "-Av8")
+ .Default("-Av8");
+ }
+}
+
+sparc::FloatABI sparc::getSparcFloatABI(const Driver &D,
+ const ArgList &Args) {
+ sparc::FloatABI ABI = sparc::FloatABI::Invalid;
+ if (Arg *A = Args.getLastArg(clang::driver::options::OPT_msoft_float,
+ options::OPT_mhard_float,
+ options::OPT_mfloat_abi_EQ)) {
+ if (A->getOption().matches(clang::driver::options::OPT_msoft_float))
+ ABI = sparc::FloatABI::Soft;
+ else if (A->getOption().matches(options::OPT_mhard_float))
+ ABI = sparc::FloatABI::Hard;
+ else {
+ ABI = llvm::StringSwitch<sparc::FloatABI>(A->getValue())
+ .Case("soft", sparc::FloatABI::Soft)
+ .Case("hard", sparc::FloatABI::Hard)
+ .Default(sparc::FloatABI::Invalid);
+ if (ABI == sparc::FloatABI::Invalid &&
+ !StringRef(A->getValue()).empty()) {
+ D.Diag(clang::diag::err_drv_invalid_mfloat_abi) << A->getAsString(Args);
+ ABI = sparc::FloatABI::Hard;
+ }
+ }
+ }
+
+ // If unspecified, choose the default based on the platform.
+ // Only the hard-float ABI on Sparc is standardized, and it is the
+ // default. GCC also supports a nonstandard soft-float ABI mode, also
+ // implemented in LLVM. However as this is not standard we set the default
+ // to be hard-float.
+ if (ABI == sparc::FloatABI::Invalid) {
+ ABI = sparc::FloatABI::Hard;
+ }
+
+ return ABI;
+}
+
+void sparc::getSparcTargetFeatures(const Driver &D, const ArgList &Args,
+ std::vector<StringRef> &Features) {
+ sparc::FloatABI FloatABI = sparc::getSparcFloatABI(D, Args);
+ if (FloatABI == sparc::FloatABI::Soft)
+ Features.push_back("+soft-float");
+}