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[PATCH 1/8] gcno file: do not stream block flags (PR gcov-profile/80031).
- From: marxin <mliska at suse dot cz>
- To: gcc-patches at gcc dot gnu dot org
- Cc: hubicka at ucw dot cz, nathan at acm dot org
- Date: Fri, 21 Apr 2017 14:40:26 +0200
- Subject: [PATCH 1/8] gcno file: do not stream block flags (PR gcov-profile/80031).
- Authentication-results: sourceware.org; auth=none
- References: <cover.1493371589.git.mliska@suse.cz>
- Resent-user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0
gcc/ChangeLog:
2017-03-13 Martin Liska <mliska@suse.cz>
PR gcov-profile/80031
* gcov-dump.c (tag_blocks): Just print number of basic blocks.
* gcov-io.h (GCOV_TAG_BLOCKS_NUM): Remove unused macro.
* gcov.c (read_graph_file): Read just number of blocks.
* profile.c (branch_prob): Do not stream 0 flags per a basic
block.
---
gcc/gcov-dump.c | 22 ++--------------------
gcc/gcov-io.h | 1 -
gcc/gcov.c | 7 +------
gcc/profile.c | 3 +--
4 files changed, 4 insertions(+), 29 deletions(-)
diff --git a/gcc/gcov-dump.c b/gcc/gcov-dump.c
index 47db1795313..f2522577e9d 100644
--- a/gcc/gcov-dump.c
+++ b/gcc/gcov-dump.c
@@ -318,27 +318,9 @@ tag_function (const char *filename ATTRIBUTE_UNUSED,
static void
tag_blocks (const char *filename ATTRIBUTE_UNUSED,
unsigned tag ATTRIBUTE_UNUSED, unsigned length ATTRIBUTE_UNUSED,
- unsigned depth)
+ unsigned depth ATTRIBUTE_UNUSED)
{
- unsigned n_blocks = GCOV_TAG_BLOCKS_NUM (length);
-
- printf (" %u blocks", n_blocks);
-
- if (flag_dump_contents)
- {
- unsigned ix;
-
- for (ix = 0; ix != n_blocks; ix++)
- {
- if (!(ix & 7))
- {
- printf ("\n");
- print_prefix (filename, depth, gcov_position ());
- printf (VALUE_PADDING_PREFIX VALUE_PREFIX, ix);
- }
- printf ("%04x ", gcov_read_unsigned ());
- }
- }
+ printf (" %u blocks", gcov_read_unsigned ());
}
static void
diff --git a/gcc/gcov-io.h b/gcc/gcov-io.h
index 1fb58dd918e..1c8ee8f9a2a 100644
--- a/gcc/gcov-io.h
+++ b/gcc/gcov-io.h
@@ -230,7 +230,6 @@ typedef uint64_t gcov_type_unsigned;
#define GCOV_TAG_FUNCTION_LENGTH (3)
#define GCOV_TAG_BLOCKS ((gcov_unsigned_t)0x01410000)
#define GCOV_TAG_BLOCKS_LENGTH(NUM) (NUM)
-#define GCOV_TAG_BLOCKS_NUM(LENGTH) (LENGTH)
#define GCOV_TAG_ARCS ((gcov_unsigned_t)0x01430000)
#define GCOV_TAG_ARCS_LENGTH(NUM) (1 + (NUM) * 2)
#define GCOV_TAG_ARCS_NUM(LENGTH) (((LENGTH) - 1) / 2)
diff --git a/gcc/gcov.c b/gcc/gcov.c
index bb26a1a9787..63f6a75f1af 100644
--- a/gcc/gcov.c
+++ b/gcc/gcov.c
@@ -129,7 +129,6 @@ typedef struct block_info
/* Block execution count. */
gcov_type count;
- unsigned flags : 12;
unsigned count_valid : 1;
unsigned valid_chain : 1;
unsigned invalid_chain : 1;
@@ -1374,12 +1373,8 @@ read_graph_file (void)
bbg_file_name, fn->name);
else
{
- unsigned ix, num_blocks = GCOV_TAG_BLOCKS_NUM (length);
- fn->num_blocks = num_blocks;
-
+ fn->num_blocks = gcov_read_unsigned ();
fn->blocks = XCNEWVEC (block_t, fn->num_blocks);
- for (ix = 0; ix != num_blocks; ix++)
- fn->blocks[ix].flags = gcov_read_unsigned ();
}
}
else if (fn && tag == GCOV_TAG_ARCS)
diff --git a/gcc/profile.c b/gcc/profile.c
index c6f462d2f7a..c7eed0e3dfd 100644
--- a/gcc/profile.c
+++ b/gcc/profile.c
@@ -1195,8 +1195,7 @@ branch_prob (void)
/* Basic block flags */
offset = gcov_write_tag (GCOV_TAG_BLOCKS);
- for (i = 0; i != (unsigned) (n_basic_blocks_for_fn (cfun)); i++)
- gcov_write_unsigned (0);
+ gcov_write_unsigned (n_basic_blocks_for_fn (cfun));
gcov_write_length (offset);
/* Arcs */
--
2.12.2