commit gcc-4.4.3 which is used to build gcc-4.4.3 Android toolchain in master.

The source is based on fsf gcc-4.4.3 and contains local patches which
are recorded in gcc-4.4.3/README.google.

Change-Id: Id8c6d6927df274ae9749196a1cc24dbd9abc9887

1 files changed, 263 insertions, 0 deletions

diff --git a/gcc-4.4.3/gcc/tree-sample-profile.h b/gcc-4.4.3/gcc/tree-sample-profile.h
new file mode 100644
index 000000000..98b2ecb3e
--- /dev/null
+++ b/gcc-4.4.3/gcc/tree-sample-profile.h
@@ -0,0 +1,263 @@
+/* Header file of sample profile in GCC.
+   Copyright (C) 2008
+   Free Software Foundation, Inc.
+   Contributed by Paul Yuan (yingbo.com@gmail.com)
+              and Vinodha Ramasamy (vinodha@google.com).
+
+This file is part of GCC.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+/* References:
+   [1] "Feedback-directed Optimizations in GCC with Estimated Edge Profiles
+        from Hardware Event Sampling", Vinodha Ramasamy, Paul Yuan, Dehao Chen,
+        and Robert Hundt; GCC Summit 2008.
+*/
+
+#ifndef _SAMPLE_PROFILE_H
+#define _SAMPLE_PROFILE_H
+
+#include "input.h"
+
+#define FB_SAMPLE_NIDENT       16
+#define FB_SAMPLE_MAJOR_VERSION      1
+#define FB_SAMPLE_MINOR_VERSION      1
+#define SP_HTAB_INIT_SIZE 2000
+#define SP_INLINE_HTAB_INIT_SIZE 2000
+#define SP_FUNCNAME_HTAB_INIT_SIZE 2000
+
+/* Organization of sample file is as follows:
+   fb_sample_hdr
+   pu_hdr 1
+   pu_hdr 2
+   pu_hdr 3 ...
+   inline_hdr 1
+   inline_hdr 2 ...
+   str_table
+   module_hdr 1
+   module_hdr 2 ...
+   Module_Profile_Data
+   Profile_Data.  */
+
+struct fb_sample_hdr
+{
+  /* Identifier.  */
+  char fb_ident[FB_SAMPLE_NIDENT];
+
+  /* File version.  */
+  unsigned int fb_version;
+
+  /* Total number of inline function hdrs.  */
+  unsigned int fb_func_inline_hdr_num;
+
+  /* Function header file offset.  */
+  unsigned long long fb_func_hdr_offset;
+
+  /* Module header offset.  */
+  unsigned long long fb_module_hdr_offset;
+
+  /* Number of module header.  */
+  unsigned long long fb_num_module_hdr;
+
+  /* Module profile size. */
+  unsigned long long fb_module_profile_size;
+
+  /* Function header entry size.  */
+  unsigned int fb_func_hdr_ent_size;
+
+  /* Number of function header entries.  */
+  unsigned int fb_func_hdr_num;
+
+  unsigned long long fb_str_table_offset;
+  unsigned long long fb_str_table_size;
+
+  /* File offset for profile data.  */
+  unsigned long long fb_profile_offset;
+};
+
+/* Header for each function.  */
+struct func_sample_hdr
+{
+  int func_checksum;
+  int inline_depth;
+  unsigned long long sampling_rate;
+  /* Sum of samples including inlined function samples.  */
+  unsigned long long total_samples;
+
+  /* Samples of the entry BB.  */
+  unsigned long long entry_count;
+
+  /* Offset into string table.  */
+  unsigned long long func_name_index;
+
+  /* Offset into profile section relative to fb_profile_offset.  */
+  unsigned long long func_profile_offset;
+
+  /* Offsets into different profile data follows.  */
+  unsigned long long func_freq_offset;
+  unsigned long long func_num_freq_entries;
+  /* Used to hold inline stack if inline_depth > 0.  */
+  /* inline_depth number of fb_info_inline_stack entries are stored.  */
+  unsigned long long inline_stack_offset;
+
+  /* Offsets into histogram profile section relative to fb_hist_table_offset */
+  unsigned long long func_hist_table_offset;
+  unsigned long long func_num_hist_entries;
+
+  /* Offset relative to start of inline hdrs section.  */
+  unsigned long long func_inline_hdr_offset;
+  unsigned long long func_num_inline_entries;
+
+  /* Used only for inlined routines.  */
+  unsigned long long func_parent_hdr_offset;
+
+  /* For future use.  */
+  unsigned long long reserved1;
+  unsigned long long reserved2;
+};
+
+/* Header for each module.  */
+struct module_sample_hdr
+{
+  /* Offset into string table.  */
+  unsigned long long module_name_index;
+
+  /* Offset into file profile section.  */
+  unsigned long long module_profile_offset;
+
+  /* Number of modules related to this file.  */
+  unsigned long long num_aux_modules;
+
+  /* Number of quote paths entries.  */
+  unsigned long long num_quote_paths;
+
+  /* Number of bracket paths entries.  */
+  unsigned long long num_bracket_paths;
+
+  /* Number of cpp define entries.  */
+  unsigned long long num_cpp_defines;
+
+  /* Number of cpp include entries.  */
+  unsigned long long num_cpp_includes;
+
+  /* Number of cl arg entreis.  */
+  unsigned long long num_cl_args;
+
+  /* Flag that represent if the module is exported.  */
+  unsigned exported;
+
+  /* Flag that represent if the module has asm.  */
+  unsigned has_asm;
+};
+
+struct fb_info_module
+{
+  unsigned long long string_offset;
+};
+
+struct fb_info_freq
+{
+  unsigned long long filename_offset;
+  int line_num;
+  int discriminator;
+  int num_instr;
+  float freq;
+  unsigned long long num_value;
+  unsigned long long hist_offset;
+};
+
+enum fb_histogram_type
+{
+  CALL_HIST,
+  STRINGOP_HIST,
+  DIVMOD_HIST
+};
+
+struct fb_info_hist
+{
+  enum fb_histogram_type type;
+  unsigned long long value;
+  int count;
+};
+
+struct fb_info_inline_stack_entry
+{
+  unsigned long long filename_offset;
+  int line_num;
+  int discriminator;
+};
+
+struct sample_hist
+{
+  enum fb_histogram_type type;
+  union
+  {
+    char *func_name;
+    unsigned long long value;
+  } value;
+  int count;
+};
+
+/* Store line number and it's associated count.  */
+struct sample_freq_detail
+{
+  const char *filename;
+  const char *func_name;
+  int line_num;
+  int discriminator;
+  int num_instr;
+  unsigned long long num_value;
+  struct sample_hist *values;
+  float freq;
+};
+
+struct expanded_inline_location {
+  expanded_location loc;
+  int discriminator;
+};
+
+struct sample_inline_freq
+{
+  bool is_first;
+  int depth;
+  int line_num;
+  int discriminator;
+  struct expanded_inline_location *inline_stack;
+  const char *func_name;
+  const char *filename;
+  int num_instr;
+  unsigned long long num_value;
+  struct sample_hist *values;
+  float freq;
+};
+
+/* Store profile per feedback data file.  */
+struct profile
+{
+  struct fb_sample_hdr fb_hdr;
+  char *str_table;
+};
+
+extern void init_sample_profile (void);
+extern void end_sample_profile (void);
+extern unsigned long long get_total_count (gimple, const char *);
+extern unsigned long long get_total_count_edge (struct cgraph_edge *,
+                                                const char *);
+extern void sp_annotate_bb (basic_block);
+extern void sp_smooth_cfg (void);
+extern void sp_add_funcname_mapping (const char *, const char *);
+extern const char *sp_get_real_funcname (const char *name);
+extern void sp_set_sample_profile (gcov_type max_count);
+extern void gimple_sample_vpt (gimple, struct sample_hist *, int);
+#endif