``LIBGCCJIT_ABI_32`` covers the addition of a function to get target builtins:
* :func:`gcc_jit_context_get_target_builtin_function`
+
+.. _LIBGCCJIT_ABI_33:
+
+``LIBGCCJIT_ABI_33``
+--------------------
+``LIBGCCJIT_ABI_33`` covers the addition of a function to create a new
+temporary variable:
+
+ * :func:`gcc_jit_function_new_temp`
underlying string, so it is valid to pass in a pointer to an on-stack
buffer.
+.. function:: gcc_jit_lvalue *\
+ gcc_jit_function_new_temp (gcc_jit_function *func,\
+ gcc_jit_location *loc,\
+ gcc_jit_type *type)
+
+ Create a new local variable within the function, of the given type.
+ This function is similar to :func:`gcc_jit_function_new_local`, but
+ it is to be used for compiler-generated variables (as opposed to
+ user-defined variables in the language to be compiled) and these
+ variables won't show up in the debug info.
+
+ The parameter ``type`` must be non-`void`.
+
+ This entrypoint was added in :ref:`LIBGCCJIT_ABI_33`; you can test
+ for its presence using
+
+ .. code-block:: c
+
+ #ifdef LIBGCCJIT_HAVE_gcc_jit_function_new_temp
+
.. function:: size_t \
gcc_jit_function_get_param_count (gcc_jit_function *func)
#include "toplev.h"
#include "tree-cfg.h"
#include "convert.h"
+#include "gimple-expr.h"
#include "stor-layout.h"
#include "print-tree.h"
#include "gimplify.h"
std::string>> &attributes)
{
gcc_assert (type);
- gcc_assert (name);
- tree inner = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ tree inner;
+ if (name)
+ inner = build_decl (UNKNOWN_LOCATION, VAR_DECL,
get_identifier (name),
type->as_tree ());
+ else
+ {
+ inner = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ create_tmp_var_name ("JITTMP"),
+ type->as_tree ());
+ DECL_ARTIFICIAL (inner) = 1;
+ DECL_IGNORED_P (inner) = 1;
+ DECL_NAMELESS (inner) = 1;
+ }
DECL_CONTEXT (inner) = this->m_inner_fndecl;
/* Prepend to BIND_EXPR_VARS: */
return result;
}
+/* Create a recording::local instance and add it to
+ the functions's context's list of mementos, and to the function's
+ list of locals.
+
+ Implements the post-error-checking part of
+ gcc_jit_function_new_temp. */
+
+recording::lvalue *
+recording::function::new_temp (recording::location *loc,
+ type *type)
+{
+ local *result = new local (this, loc, type, NULL);
+ m_ctxt->record (result);
+ m_locals.safe_push (result);
+ return result;
+}
+
/* Create a recording::block instance and add it to
the functions's context's list of mementos, and to the function's
list of blocks.
recording::local::write_reproducer (reproducer &r)
{
const char *id = r.make_identifier (this, "local");
- r.write (" gcc_jit_lvalue *%s =\n"
- " gcc_jit_function_new_local (%s, /* gcc_jit_function *func */\n"
- " %s, /* gcc_jit_location *loc */\n"
- " %s, /* gcc_jit_type *type */\n"
- " %s); /* const char *name */\n",
- id,
- r.get_identifier (m_func),
- r.get_identifier (m_loc),
- r.get_identifier_as_type (m_type),
- m_name->get_debug_string ());
+ if (m_name)
+ r.write (" gcc_jit_lvalue *%s =\n"
+ " gcc_jit_function_new_local (%s, /* gcc_jit_function *func */\n"
+ " %s, /* gcc_jit_location *loc */\n"
+ " %s, /* gcc_jit_type *type */\n"
+ " %s); /* const char *name */\n",
+ id,
+ r.get_identifier (m_func),
+ r.get_identifier (m_loc),
+ r.get_identifier_as_type (m_type),
+ m_name->get_debug_string ());
+ else
+ r.write (" gcc_jit_lvalue *%s =\n"
+ " gcc_jit_function_new_temp (%s, /* gcc_jit_function *func */\n"
+ " %s, /* gcc_jit_location *loc */\n"
+ " %s); /* gcc_jit_type *type */\n",
+ id,
+ r.get_identifier (m_func),
+ r.get_identifier (m_loc),
+ r.get_identifier_as_type (m_type));
}
/* The implementation of class gcc::jit::recording::statement. */
type *type,
const char *name);
+ lvalue *
+ new_temp (location *loc,
+ type *type);
+
block*
new_block (const char *name);
void write_to_dump (dump &d) final override;
private:
- string * make_debug_string () final override { return m_name; }
+ string * make_debug_string () final override {
+ if (m_name)
+ return m_name;
+ else
+ return m_ctxt->new_string ("temp");
+ }
void write_reproducer (reproducer &r) final override;
enum precedence get_precedence () const final override
{
return (gcc_jit_lvalue *)func->new_local (loc, type, name);
}
+/* Public entrypoint. See description in libgccjit.h.
+
+ After error-checking, the real work is done by the
+ gcc::jit::recording::function::new_temp method in jit-recording.cc. */
+
+gcc_jit_lvalue *
+gcc_jit_function_new_temp (gcc_jit_function *func,
+ gcc_jit_location *loc,
+ gcc_jit_type *type)
+{
+ RETURN_NULL_IF_FAIL (func, NULL, loc, "NULL function");
+ gcc::jit::recording::context *ctxt = func->m_ctxt;
+ JIT_LOG_FUNC (ctxt->get_logger ());
+ /* LOC can be NULL. */
+ RETURN_NULL_IF_FAIL (func->get_kind () != GCC_JIT_FUNCTION_IMPORTED,
+ ctxt, loc,
+ "Cannot add temps to an imported function");
+ RETURN_NULL_IF_FAIL (type, ctxt, loc, "NULL type");
+ RETURN_NULL_IF_FAIL_PRINTF1 (
+ type->has_known_size (),
+ ctxt, loc,
+ "unknown size for temp (type: %s)",
+ type->get_debug_string ());
+ RETURN_NULL_IF_FAIL (
+ !type->is_void (),
+ ctxt, loc,
+ "void type for temp");
+
+ return (gcc_jit_lvalue *)func->new_temp (loc, type);
+}
+
/* Public entrypoint. See description in libgccjit.h.
After error-checking, the real work is done by the
gcc_jit_type *type,
const char *name);
+extern gcc_jit_lvalue *
+gcc_jit_function_new_temp (gcc_jit_function *func,
+ gcc_jit_location *loc,
+ gcc_jit_type *type);
+
+#define LIBGCCJIT_HAVE_gcc_jit_function_new_temp
+
/**********************************************************************
Statement-creation.
**********************************************************************/
global:
gcc_jit_context_get_target_builtin_function;
} LIBGCCJIT_ABI_31;
+
+LIBGCCJIT_ABI_33 {
+ global:
+ gcc_jit_function_new_temp;
+} LIBGCCJIT_ABI_32;
/* test-target-builtins.c: This can't be in the testcases array as it
is target-specific. */
+/* test-temp.c: This can't be in the testcases array as it
+ is target-specific. */
+
/* test-string-literal.c */
#define create_code create_code_string_literal
#define verify_code verify_code_string_literal
--- /dev/null
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "libgccjit.h"
+
+#define TEST_COMPILING_TO_FILE
+#define OUTPUT_KIND GCC_JIT_OUTPUT_KIND_ASSEMBLER
+#define OUTPUT_FILENAME "output-of-test-test-temp.c.s"
+#include "harness.h"
+
+void
+create_code (gcc_jit_context *ctxt, void *user_data)
+{
+ /* Let's try to inject the equivalent of:
+int
+func ()
+{
+ int temp = 10;
+ return temp;
+}
+ */
+ gcc_jit_type *int_type =
+ gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
+
+ gcc_jit_function *func =
+ gcc_jit_context_new_function (ctxt,
+ NULL,
+ GCC_JIT_FUNCTION_EXPORTED,
+ int_type,
+ "func",
+ 0, NULL, 0);
+
+ gcc_jit_block *initial =
+ gcc_jit_function_new_block (func, "initial");
+
+ gcc_jit_lvalue *temp =
+ gcc_jit_function_new_temp (func, NULL, int_type);
+
+ gcc_jit_rvalue *ten =
+ gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 10);
+ gcc_jit_block_add_assignment (initial, NULL, temp, ten);
+
+ gcc_jit_block_end_with_return(initial, NULL,
+ gcc_jit_lvalue_as_rvalue (temp));
+}
+
+void
+verify_code (gcc_jit_context *ctxt, gcc_jit_result *result)
+{
+ CHECK_NON_NULL (result);
+}
+
+/* { dg-final { jit-verify-output-file-was-created "" } } */
+/* { dg-final { jit-verify-assembler-output-not "JITTMP" } } */
projects / thirdparty / gcc.git / commitdiff
