If MAX_MACHINE_MODE exceeds 8bits, a warning will appear in the following code.
waring: writing 293 bytes into a region of size 256 overflows the destination
gcc/lto-streamer-out.cc
void
lto_output_init_mode_table (void)
{
memset (streamer_mode_table, '\0', MAX_MACHINE_MODE);
}
gcc/ChangeLog:
* tree-streamer.cc: Extend streamer_mode_table size to
MACHINE_MODE_BITSIZE.
* tree-streamer.h: Ditto.
---
gcc/tree-streamer.cc | 2 +-
gcc/tree-streamer.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/tree-streamer.cc b/gcc/tree-streamer.cc
index ed65a7692e3..14c222698bf 100644
--- a/gcc/tree-streamer.cc
+++ b/gcc/tree-streamer.cc
@@ -35,7 +35,7 @@ along with GCC; see the file COPYING3. If not see
During streaming in, we translate the on the disk mode using this
table. For normal LTO it is set to identity, for ACCEL_COMPILER
depending on the mode_table content. */
-unsigned char streamer_mode_table[1 << 8];
+unsigned char streamer_mode_table[1 << MACHINE_MODE_BITSIZE];
/* Check that all the TS_* structures handled by the streamer_write_* and
streamer_read_* routines are exactly ALL the structures defined in
diff --git a/gcc/tree-streamer.h b/gcc/tree-streamer.h
index 170d61cf20b..8bc757be189 100644
--- a/gcc/tree-streamer.h
+++ b/gcc/tree-streamer.h
@@ -75,7 +75,7 @@ void streamer_write_tree_body (struct output_block *, tree);
void streamer_write_integer_cst (struct output_block *, tree);
/* In tree-streamer.cc. */
-extern unsigned char streamer_mode_table[1 << 8];
+extern unsigned char streamer_mode_table[1 << MACHINE_MODE_BITSIZE];
void streamer_check_handled_ts_structures (void);
bool streamer_tree_cache_insert (struct streamer_tree_cache_d *, tree,
hashval_t, unsigned *);
--
2.17.1
