New jit API entrypoint: gcc_jit_context_compile_to_file

gcc/jit/ChangeLog:
	* docs/cp/topics/results.rst: Rename to...
	* docs/cp/topics/compilation.rst: ...this, and add section on
	ahead-of-time compilation.
	* docs/cp/topics/index.rst: Update for renaming of results.rst
	to compilation.rst.
	* docs/examples/emit-alphabet.bf: New file, a sample "brainf"
	script.
	* docs/examples/tut05-bf.c: New file, implementing a compiler
	for "brainf".
	* docs/internals/test-hello-world.exe.log.txt: Update to reflect
	changes to logger output.
	* docs/intro/index.rst: Add tutorial05.rst
	* docs/intro/tutorial05.rst: New file.
	* docs/topics/results.rst: Rename to...
	* docs/topics/compilation.rst: ...this, and add section on
	ahead-of-time compilation.
	* docs/topics/index.rst: Update for renaming of results.rst to
	compilation.rst.
	* jit-playback.c (gcc::jit::playback::context::compile): Convert
	return type from result * to void.  Move the code to convert to
	dso and dlopen the result to a new pure virtual "postprocess"
	method.
	(gcc::jit::playback::compile_to_memory::compile_to_memory): New
	function.
	(gcc::jit::playback::compile_to_memory::postprocess): New
	function, based on playback::context::compile.
	(gcc::jit::playback::compile_to_file::compile_to_file): New
	function.
	(gcc::jit::playback::compile_to_file::postprocess): New function.
	(gcc::jit::playback::compile_to_file::copy_file): New function.
	(gcc::jit::playback::context::convert_to_dso): Move internals
	to...
	(gcc::jit::playback::context::invoke_driver): New method.  Add
	"-shared" and "-c" options to driver's argv as needed.
	* jit-playback.h: Include "timevar.h".
	(gcc::jit::playback::context::compile): Convert return type from
	result * to void.
	(gcc::jit::playback::context::postprocess): New pure virtual
	function, making this an abstract base class.
	(gcc::jit::playback::context::get_tempdir): New accessor.
	(gcc::jit::playback::context::invoke_driver): New function.
	(class gcc::jit::playback::compile_to_memory): New subclass of
	playback::context.
	(class gcc::jit::playback::compile_to_file): Likewise.
	* jit-recording.c (gcc::jit::recording::context::compile): Use a
	playback::compile_to_memory, and extract its result.
	(gcc::jit::recording::context::compile_to_file): New function.
	* jit-recording.h (gcc::jit::recording::context::compile_to_file):
	New function.
	* libgccjit++.h (gccjit::context::compile_to_file): New method.
	* libgccjit.c (gcc_jit_context_compile): Update log message to
	clarify that this is an in-memory compile.
	(gcc_jit_context_compile_to_file): New function.
	* libgccjit.h (gcc_jit_context): Clarify that you can compile
	a context more than once, and that you can compile to a file
	as well as to memory.
	(gcc_jit_result): Clarify that this is the result of an
	in-memory compilation.
	(gcc_jit_context_compile): Clarify that you can compile, and that
	this is an in-memory compilation.
	(enum gcc_jit_output_kind): New enum.
	(gcc_jit_context_compile_to_file): New function.
	(gcc_jit_context_enable_dump): Clarify comment to cover both forms
	of compilation.
	* libgccjit.map (gcc_jit_context_compile_to_file): New API
	entrypoint.
	* notes.txt: Update to show the playback::context::postprocess
	virtual function.

gcc/testsuite/ChangeLog:
	* jit.dg/harness.h: Include <unistd.h>.
	(CHECK_NO_ERRORS): New.
	(verify_code): Wrap prototype in #ifndef TEST_COMPILING_TO_FILE.
	(test_jit): Support new macro TEST_COMPILING_TO_FILE for exercising
	gcc_jit_context_compile_to_file.
	* jit.dg/jit.exp (fixed_host_execute): Fix the code for passing on
	args to the spawned executable.
	(jit-expand-vars): New function.
	(jit-exe-params): New variable.
	(dg-jit-set-exe-params): New function.
	(jit-dg-test): Detect testcases that use
	jit-verify-compile-to-file and call jit-setup-compile-to-file.
	Set arguments of spawned process to jit-exe-params.
	(jit-get-output-filename): New function.
	(jit-setup-compile-to-file): New function.
	(jit-verify-compile-to-file): New function.
	(jit-run-executable): New function.
	(jit-verify-executable): New function.
	* jit.dg/test-compile-to-assembler.c: New testcase.
	* jit.dg/test-compile-to-dynamic-library.c: New testcase.
	* jit.dg/test-compile-to-executable.c: New testcase.
	* jit.dg/test-compile-to-object.c: New testcase.

From-SVN: r219876

1 files changed, 53 insertions, 1 deletions

diff --git a/gcc/jit/jit-playback.h b/gcc/jit/jit-playback.h
index 8efd506..e9832f0 100644
--- a/gcc/jit/jit-playback.h
+++ b/gcc/jit/jit-playback.h
@@ -23,6 +23,8 @@ along with GCC; see the file COPYING3.  If not see
 
 #include <utility> // for std::pair
 
+#include "timevar.h"
+
 #include "jit-recording.h"
 
 namespace gcc {
@@ -35,6 +37,12 @@ namespace jit {
 
 namespace playback {
 
+/* playback::context is an abstract base class.
+
+   The two concrete subclasses are:
+   - playback::compile_to_memory
+   - playback::compile_to_file.  */
+
 class context : public log_user
 {
 public:
@@ -174,7 +182,7 @@ public:
     return m_recording_ctxt->get_builtins_manager ();
   }
 
-  result *
+  void
   compile ();
 
   void
@@ -252,9 +260,22 @@ private:
   char *
   read_dump_file (const char *path);
 
+  virtual void postprocess (const char *ctxt_progname) = 0;
+
+protected:
+  tempdir *get_tempdir () { return m_tempdir; }
+
   void
   convert_to_dso (const char *ctxt_progname);
 
+  void
+  invoke_driver (const char *ctxt_progname,
+		 const char *input_file,
+		 const char *output_file,
+		 timevar_id_t tv_id,
+		 bool shared,
+		 bool run_linker);
+
   result *
   dlopen_built_dso ();
 
@@ -274,6 +295,37 @@ private:
   auto_vec<std::pair<tree, location *> > m_cached_locations;
 };
 
+class compile_to_memory : public context
+{
+ public:
+  compile_to_memory (recording::context *ctxt);
+  void postprocess (const char *ctxt_progname);
+
+  result *get_result_obj () const { return m_result; }
+
+ private:
+  result *m_result;
+};
+
+class compile_to_file : public context
+{
+ public:
+  compile_to_file (recording::context *ctxt,
+		   enum gcc_jit_output_kind output_kind,
+		   const char *output_path);
+  void postprocess (const char *ctxt_progname);
+
+ private:
+  void
+  copy_file (const char *src_path,
+	     const char *dst_path);
+
+ private:
+  enum gcc_jit_output_kind m_output_kind;
+  const char *m_output_path;
+};
+
+
 /* A temporary wrapper object.
    These objects are (mostly) only valid during replay.
    We allocate them on the GC heap, so that they will be cleaned