diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/llvmc/examples/Makefile | 2 | ||||
| -rw-r--r-- | tools/llvmc/examples/mcc16/Hooks.cpp | 109 | ||||
| -rw-r--r-- | tools/llvmc/examples/mcc16/Main.cpp | 57 | ||||
| -rw-r--r-- | tools/llvmc/examples/mcc16/Makefile | 15 | ||||
| -rw-r--r-- | tools/llvmc/examples/mcc16/PIC16.td | 234 | ||||
| -rw-r--r-- | tools/llvmc/examples/mcc16/README | 75 |
6 files changed, 491 insertions, 1 deletions
diff --git a/tools/llvmc/examples/Makefile b/tools/llvmc/examples/Makefile index 8f300a6..8468e93 100644 --- a/tools/llvmc/examples/Makefile +++ b/tools/llvmc/examples/Makefile @@ -9,6 +9,6 @@ LEVEL=../../.. -PARALLEL_DIRS := Hello Simple Skeleton +PARALLEL_DIRS := Hello Simple mcc16 Skeleton include $(LEVEL)/Makefile.common diff --git a/tools/llvmc/examples/mcc16/Hooks.cpp b/tools/llvmc/examples/mcc16/Hooks.cpp new file mode 100644 index 0000000..edb91e1 --- /dev/null +++ b/tools/llvmc/examples/mcc16/Hooks.cpp @@ -0,0 +1,109 @@ +#include "llvm/System/Path.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/raw_ostream.h" + +#include <string> + +namespace llvmc { + extern char *ProgramName; + + namespace autogenerated { + extern llvm::cl::opt<std::string> Parameter_p; + } +} + +using namespace llvm; +using namespace llvmc; + +// Returns the platform specific directory separator via #ifdefs. +// FIXME: This currently work on linux and windows only. It does not +// work on other unices. +static std::string GetDirSeparator() { +#if __linux__ || __APPLE__ + return "/"; +#else + return "\\"; +#endif +} + +namespace hooks { +// Get preprocessor define for the part. +// It is __partname format in lower case. +std::string +GetLowerCasePartDefine(void) { + std::string Partname; + if (autogenerated::Parameter_p.empty()) { + Partname = "16f1xxx"; + } else { + Partname = autogenerated::Parameter_p; + } + + std::string LowerCase; + for (unsigned i = 0; i < Partname.size(); i++) { + LowerCase.push_back(std::tolower(Partname[i])); + } + + return "__" + LowerCase; +} + +std::string +GetUpperCasePartDefine(void) { + std::string Partname; + if (autogenerated::Parameter_p.empty()) { + Partname = "16f1xxx"; + } else { + Partname = autogenerated::Parameter_p; + } + + std::string UpperCase; + for (unsigned i = 0; i < Partname.size(); i++) { + UpperCase.push_back(std::toupper(Partname[i])); + } + + return "__" + UpperCase; +} + +// Get the dir where c16 executables reside. +std::string GetBinDir() { + // Construct a Path object from the program name. + void *P = (void*) (intptr_t) GetBinDir; + sys::Path ProgramFullPath + = sys::Path::GetMainExecutable(llvmc::ProgramName, P); + + // Get the dir name for the program. It's last component should be 'bin'. + std::string BinDir = ProgramFullPath.getDirname(); + + // llvm::errs() << "BinDir: " << BinDir << '\n'; + return BinDir + GetDirSeparator(); +} + +// Get the Top-level Installation dir for c16. +std::string GetInstallDir() { + sys::Path BinDirPath = sys::Path(GetBinDir()); + + // Go one more level up to get the install dir. + std::string InstallDir = BinDirPath.getDirname(); + + return InstallDir + GetDirSeparator(); +} + +// Get the dir where the c16 header files reside. +std::string GetStdHeadersDir() { + return GetInstallDir() + "include"; +} + +// Get the dir where the assembler header files reside. +std::string GetStdAsmHeadersDir() { + return GetInstallDir() + "inc"; +} + +// Get the dir where the linker scripts reside. +std::string GetStdLinkerScriptsDir() { + return GetInstallDir() + "lkr"; +} + +// Get the dir where startup code, intrinsics and lib reside. +std::string GetStdLibsDir() { + return GetInstallDir() + "lib"; +} +} diff --git a/tools/llvmc/examples/mcc16/Main.cpp b/tools/llvmc/examples/mcc16/Main.cpp new file mode 100644 index 0000000..55ae912 --- /dev/null +++ b/tools/llvmc/examples/mcc16/Main.cpp @@ -0,0 +1,57 @@ +//===--- Main.cpp - The LLVM Compiler Driver -------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open +// Source License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Usually this file just includes CompilerDriver/Main.inc, but here we apply +// some trickery to make the built-in '-save-temps' option hidden and enable +// '--temp-dir' by default. +// +//===----------------------------------------------------------------------===// + +#include "llvm/CompilerDriver/BuiltinOptions.h" +#include "llvm/CompilerDriver/Main.h" + +#include "llvm/System/Path.h" +#include "llvm/Config/config.h" + +#include <iostream> + +#include "PIC16.inc" + +namespace { + +// Modify the PACKAGE_VERSION to use build number in top level configure file. +void PIC16VersionPrinter(void) { + std::cout << "MPLAB C16 1.0 " << PACKAGE_VERSION << "\n"; +} + +} + +int main(int argc, char** argv) { + + // HACK + SaveTemps.setHiddenFlag(llvm::cl::Hidden); + TempDirname.setHiddenFlag(llvm::cl::Hidden); + Languages.setHiddenFlag(llvm::cl::Hidden); + DryRun.setHiddenFlag(llvm::cl::Hidden); + + llvm::cl::SetVersionPrinter(PIC16VersionPrinter); + + // Ask for a standard temp dir, but just cache its basename., and delete it. + llvm::sys::Path tempDir; + tempDir = llvm::sys::Path::GetTemporaryDirectory(); + TempDirname = tempDir.getBasename(); + tempDir.eraseFromDisk(true); + + // We are creating a temp dir in current dir, with the cached name. + // But before that remove if one already exists with that name.. + tempDir = TempDirname; + tempDir.eraseFromDisk(true); + + return llvmc::Main(argc, argv); +} diff --git a/tools/llvmc/examples/mcc16/Makefile b/tools/llvmc/examples/mcc16/Makefile new file mode 100644 index 0000000..4409cff --- /dev/null +++ b/tools/llvmc/examples/mcc16/Makefile @@ -0,0 +1,15 @@ +##===- llvmc/examples/mcc16/Makefile -----------------------*- Makefile -*-===## +# +# The LLVM Compiler Infrastructure +# +# This file is distributed under the University of Illinois Open Source +# License. See LICENSE.TXT for details. +# +##===----------------------------------------------------------------------===## + +LEVEL = ../../../.. + +LLVMC_BASED_DRIVER = mcc16 +BUILT_SOURCES = PIC16.inc + +include $(LEVEL)/Makefile.common diff --git a/tools/llvmc/examples/mcc16/PIC16.td b/tools/llvmc/examples/mcc16/PIC16.td new file mode 100644 index 0000000..6f04196 --- /dev/null +++ b/tools/llvmc/examples/mcc16/PIC16.td @@ -0,0 +1,234 @@ +//===- PIC16.td - PIC16 toolchain driver -------------------*- tablegen -*-===// +// +// A basic driver for the PIC16 toolchain. +// +//===----------------------------------------------------------------------===// + +include "llvm/CompilerDriver/Common.td" + +// Options + +def OptionList : OptionList<[ + (switch_option "g", + (help "Enable Debugging")), + (switch_option "E", + (help "Stop after preprocessing, do not compile")), + (switch_option "S", + (help "Stop after compilation, do not assemble")), + (switch_option "bc", + (help "Stop after b-code generation, do not compile")), + (switch_option "c", + (help "Stop after assemble, do not link")), + (prefix_option "p", + (help "Specify part name")), + (prefix_list_option "I", + (help "Add a directory to include path")), + (prefix_list_option "L", + (help "Add a directory to library path")), + (prefix_list_option "K", + (help "Add a directory to linker script search path")), + (parameter_option "l", + (help "Specify a library to link")), + (parameter_option "k", + (help "Specify a linker script")), + (parameter_option "m", + (help "Generate linker map file with the given name")), + (prefix_list_option "D", + (help "Define a macro")), + (switch_option "X", + (help "Do not invoke mp2hex to create an output hex file.")), + (switch_option "O0", + (help "Do not optimize")), + (switch_option "O1", + (help "Optimization Level 1.")), + (switch_option "O2", + (help "Optimization Level 2.")), + (switch_option "O3", + (help "Optimization Level 3.")), + (switch_option "Od", + (help "Perform Debug-safe Optimizations only.")), + (switch_option "w", + (help "Disable all warnings.")), +// (switch_option "O1", +// (help "Optimization level 1")), +// (switch_option "O2", +// (help "Optimization level 2. (Default)")), +// (parameter_option "pre-RA-sched", +// (help "Example of an option that is passed to llc")), + (parameter_option "regalloc", + (help "Register allocator to use (possible values: simple, linearscan, pbqp, local; default=linearscan)")), + (prefix_list_option "Wa,", (comma_separated), + (help "Pass options to assembler (Run 'gpasm -help' for assembler options)")), + (prefix_list_option "Wl,", (comma_separated), + (help "Pass options to linker (Run 'mplink -help' for linker options)")) +// (prefix_list_option "Wllc,", +// (help "Pass options to llc")), +// (prefix_list_option "Wo,", +// (help "Pass options to llvm-ld")) +]>; + +// Tools +class clang_based<string language, string cmd, string ext_E> : Tool< +[(in_language language), + (out_language "llvm-bitcode"), + (output_suffix "bc"), + (command cmd), + (actions (case + (and (multiple_input_files), + (or (switch_on "S"), (switch_on "c"))), + (error "cannot specify -o with -c or -S with multiple files"), + (switch_on "E"), [(forward "E"), + (stop_compilation), (output_suffix ext_E)], + (and (switch_on "E"), (empty "o")), (no_out_file), + (switch_on "bc"),[(stop_compilation), (output_suffix "bc")], + (switch_on "g"), (append_cmd "-g"), + (switch_on "w"), (append_cmd "-w"), + (switch_on "O1"), (append_cmd ""), + (switch_on "O2"), (append_cmd ""), + (switch_on "O3"), (append_cmd ""), + (switch_on "Od"), (append_cmd ""), + (not_empty "D"), (forward "D"), + (not_empty "I"), (forward "I"), + (switch_on "O0"), (append_cmd "-O0"), + (default), (append_cmd "-O1"))) +// (sink) +]>; + +def clang_cc : clang_based<"c", "$CALL(GetBinDir)clang -cc1 -I $CALL(GetStdHeadersDir) -D $CALL(GetLowerCasePartDefine) -D $CALL(GetUpperCasePartDefine) -triple=pic16- -emit-llvm-bc ", "i">; + +//def clang_cc : Tool<[ +// (in_language "c"), +// (out_language "llvm-bitcode"), +// (output_suffix "bc"), +// (cmd_line "$CALL(GetBinDir)clang-cc -I $CALL(GetStdHeadersDir) -triple=pic16- -emit-llvm-bc "), +// (cmd_line kkkkk +// (actions (case +// (switch_on "g"), (append_cmd "g"), +// (not_empty "I"), (forward "I"))), +// (sink) +//]>; + + +// pre-link-and-lto step. +def llvm_ld : Tool<[ + (in_language "llvm-bitcode"), + (out_language "llvm-bitcode"), + (output_suffix "bc"), + (command "$CALL(GetBinDir)llvm-ld -L $CALL(GetStdLibsDir) -disable-licm-promotion -l std"), + (out_file_option "-b"), + (actions (case + (switch_on "O0"), (append_cmd "-disable-opt"), + (switch_on "O1"), (append_cmd "-disable-opt"), +// Whenever O3 is not specified on the command line, default i.e. disable-inlining will always be added. + (switch_on "O2"), (append_cmd ""), + (switch_on "O3"), (append_cmd ""), + (default), (append_cmd "-disable-inlining"))), + (join) +]>; + +// optimize single file +def llvm_ld_optimizer : Tool<[ + (in_language "llvm-bitcode"), + (out_language "llvm-bitcode"), + (output_suffix "bc"), +// FIXME: we are still not disabling licm-promotion. +// -disable-licm-promotion and building stdn library causes c16-71 to fail. + (command "$CALL(GetBinDir)llvm-ld "), + (out_file_option "-b"), + (actions (case + (switch_on "O0"), (append_cmd "-disable-opt"), + (switch_on "O1"), (append_cmd "-disable-opt"), +// Whenever O3 is not specified on the command line, default i.e. disable-inlining will always be added. + (switch_on "O2"), (append_cmd ""), + (switch_on "O3"), (append_cmd ""), + (default), (append_cmd "-disable-inlining"))) +]>; + +// optimizer step. +def pic16passes : Tool<[ + (in_language "llvm-bitcode"), + (out_language "llvm-bitcode"), + (output_suffix "obc"), + (command "$CALL(GetBinDir)opt -pic16cloner -pic16overlay -f"), + (actions (case + (switch_on "O0"), (append_cmd "-disable-opt"))) +]>; + +def llc : Tool<[ + (in_language "llvm-bitcode"), + (out_language "assembler"), + (output_suffix "s"), + (command "$CALL(GetBinDir)llc -march=pic16 -disable-jump-tables -pre-RA-sched=list-burr -f"), + (actions (case + (switch_on "S"), (stop_compilation), +// (not_empty "Wllc,"), (unpack_values "Wllc,"), +// (not_empty "pre-RA-sched"), (forward "pre-RA-sched"))) + (not_empty "regalloc"), (forward "regalloc"), + (empty "regalloc"), (append_cmd "-regalloc=linearscan"))) +]>; + +def gpasm : Tool<[ + (in_language "assembler"), + (out_language "object-code"), + (output_suffix "o"), + (command "$CALL(GetBinDir)gpasm -z -r decimal -I $CALL(GetStdAsmHeadersDir) -C -c -w 2"), + (actions (case + (switch_on "c"), (stop_compilation), + (switch_on "g"), (append_cmd "-g"), + (not_empty "p"), (forward "p"), + (empty "p"), (append_cmd "-p 16f1xxx"), + (not_empty "Wa,"), (forward_value "Wa,"))) +]>; + +def mplink : Tool<[ + (in_language "object-code"), + (out_language "executable"), + (output_suffix "cof"), + (command "$CALL(GetBinDir)mplink -e -k $CALL(GetStdLinkerScriptsDir) -l $CALL(GetStdLibsDir) intrinsics.lib stdn.lib"), + (actions (case + (not_empty "Wl,"), (forward_value "Wl,"), + (switch_on "X"), (append_cmd "-x"), + (not_empty "L"), (forward_as "L", "-l"), + (not_empty "K"), (forward_as "K", "-k"), + (not_empty "m"), (forward "m"), + (not_empty "p"), [(forward "p"), (append_cmd "-c")], + (empty "p"), (append_cmd "-p 16f1xxx -c"), +// (not_empty "l"), [(unpack_values "l"),(append_cmd ".lib")])), + (not_empty "k"), (forward "k"), + (not_empty "l"), (forward "l"))), + (join) +]>; + +// Language map + +def LanguageMap : LanguageMap<[ + (lang_to_suffixes "c", "c"), + (lang_to_suffixes "c-cpp-output", "i"), + (lang_to_suffixes "assembler", "s"), + (lang_to_suffixes "assembler-with-cpp", "S"), + (lang_to_suffixes "llvm-assembler", "ll"), + (lang_to_suffixes "llvm-bitcode", "bc"), + (lang_to_suffixes "object-code", "o"), + (lang_to_suffixes "executable", "cof") +]>; + +// Compilation graph + +def CompilationGraph : CompilationGraph<[ + (edge "root", "clang_cc"), + (edge "root", "llvm_ld"), + (optional_edge "root", "llvm_ld_optimizer", + (case (switch_on "S"), (inc_weight), + (switch_on "c"), (inc_weight))), + (edge "root", "gpasm"), + (edge "root", "mplink"), + (edge "clang_cc", "llvm_ld"), + (optional_edge "clang_cc", "llvm_ld_optimizer", + (case (switch_on "S"), (inc_weight), + (switch_on "c"), (inc_weight))), + (edge "llvm_ld", "pic16passes"), + (edge "llvm_ld_optimizer", "pic16passes"), + (edge "pic16passes", "llc"), + (edge "llc", "gpasm"), + (edge "gpasm", "mplink") +]>; diff --git a/tools/llvmc/examples/mcc16/README b/tools/llvmc/examples/mcc16/README new file mode 100644 index 0000000..6d2b73d --- /dev/null +++ b/tools/llvmc/examples/mcc16/README @@ -0,0 +1,75 @@ +This is a basic compiler driver for the PIC16 toolchain that shows how to create +your own llvmc-based drivers. It is based on the examples/Skeleton template. + +The PIC16 toolchain looks like this: + +clang-cc (FE) -> llvm-ld (optimizer) -> llc (codegen) -> native-as -> native-ld + +Following features were requested by Sanjiv: + +From: Sanjiv Gupta <sanjiv.gupta <at> microchip.com> +Subject: Re: llvmc for PIC16 +Newsgroups: gmane.comp.compilers.llvm.devel +Date: 2009-06-05 06:51:14 GMT + +The salient features that we want to have in the driver are: +1. llvm-ld will be used as "The Optimizer". +2. If the user has specified to generate the final executable, then +llvm-ld should run on all the .bc files generated by clang and create a +single optimized .bc file for further tools. +3. -Wo <options> - pass optimizations to the llvm-ld +4. mcc16 -Wl <options> - pass options to native linker. +5. mcc16 -Wa <options> - pass options to native assembler. + +Here are some example command lines and sample command invocations as to +what should be done. + +$ mcc16 -S foo.c +// [clang-cc foo.c] -> foo.bc +// [llvm-ld foo.bc] -> foo.opt.bc +// [llc foo.opt.bc] -> foo.s + +$ mcc16 -S foo.c bar.c +// [clang-cc foo.c] -> foo.bc +// [llvm-ld foo.bc] -> foo.opt.bc +// [llc foo.opt.bc] -> foo.s +// [clang-cc bar.c] -> bar.bc +// [llvm-ld bar.bc] -> bar.opt.bc +// [llc bar.opt.bc] -> bar.s + +** Use of -g causes llvm-ld to run with -disable-opt +$ mcc16 -S -g foo.c +// [clang-cc foo.c] -> foo.bc +// [llvm-ld -disable-opt foo.bc] -> foo.opt.bc +// [llc foo.opt.bc] -> foo.s + +** -I is passed to clang-cc, -pre-RA-sched=list-burr to llc. +$ mcc16 -S -g -I ../include -pre-RA-sched=list-burr foo.c +// [clang-cc -I ../include foo.c] -> foo.bc +// [llvm-ld -disable-opt foo.bc] -> foo.opt.bc +// [llc -pre-RA-sched=list-burr foo.opt.bc] -> foo.s + +** -Wo passes options to llvm-ld +$ mcc16 -Wo=opt1,opt2 -S -I ../include -pre-RA-sched=list-burr foo.c +// [clang-cc -I ../include foo.c] -> foo.bc +// [llvm-ld -opt1 -opt2 foo.bc] -> foo.opt.bc +// [llc -pre-RA-sched=list-burr foo.opt.bc] -> foo.s + +** -Wa passes options to native as. +$ mcc16 -c foo.c -Wa=opt1 +// [clang-cc foo.c] -> foo.bc +// [llvm-ld foo.bc] -> foo.opt.bc +// [llc foo.opt.bc] -> foo.s +// [native-as -opt1 foo.s] -> foo.o + +$ mcc16 -Wo=opt1 -Wl=opt2 -Wa=opt3 foo.c bar.c +// [clang-cc foo.c] -> foo.bc +// [clang-cc bar.c] -> bar.bc +// [llvm-ld -opt1 foo.bc bar.bc] -> a.out.bc +// [llc a.out.bc] -> a.out.s +// [native-as -opt3 a.out.s] -> a.out.o +// [native-ld -opt2 a.out.o] -> a.out + +Is this achievable by a tablegen based driver ? + +- Sanjiv |