diff options
Diffstat (limited to 'gcc/basic-block.h')
| -rw-r--r-- | gcc/basic-block.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/gcc/basic-block.h b/gcc/basic-block.h index 05f41c01948..2c3ef581111 100644 --- a/gcc/basic-block.h +++ b/gcc/basic-block.h @@ -138,6 +138,8 @@ typedef struct edge_def { int probability; /* biased by REG_BR_PROB_BASE */ gcov_type count; /* Expected number of executions calculated in profile.c */ + bool crossing_edge; /* Crosses between hot and cold sections, when + we do partitioning. */ } *edge; #define EDGE_FALLTHRU 1 /* 'Straight line' flow */ @@ -246,6 +248,9 @@ typedef struct basic_block_def { /* Various flags. See BB_* below. */ int flags; + /* Which section block belongs in, when partitioning basic blocks. */ + int partition; + /* Additional data maintained by cfg_layout routines. */ struct reorder_block_def *rbi; } *basic_block; @@ -260,6 +265,12 @@ typedef struct basic_block_def { #define BB_IRREDUCIBLE_LOOP 16 #define BB_SUPERBLOCK 32 +/* Partitions, to be used when partitioning hot and cold basic blocks into + separate sections. */ +#define UNPARTITIONED 0 +#define HOT_PARTITION 1 +#define COLD_PARTITION 2 + /* Number of basic blocks in the current function. */ extern int n_basic_blocks; @@ -611,6 +622,7 @@ extern bool control_flow_insn_p (rtx); /* In bb-reorder.c */ extern void reorder_basic_blocks (void); +extern void partition_hot_cold_basic_blocks (void); /* In dominance.c */ |