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authorkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>1999-12-18 21:33:23 +0000
committerkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>1999-12-18 21:33:23 +0000
commit083a2b5efc1c99bf5876b5dee828230e4a3faa77 (patch)
treeb29d6812261abeb25b182a176f35382f12cb98bd /gcc/flow.c
parent34f6bd81bda38e680764f4ffd2405ac4123b9a3d (diff)
downloadgcc-083a2b5efc1c99bf5876b5dee828230e4a3faa77.tar.gz
* alias.c: Minor reformatting.
* flow.c: Likewise. * regs.h: Likewise. * stor-layout.c: Likewise. * fold-const.c: Likewise. (OVERFLOW_SUM_SIGN): Renamed from overflow_sum_sign. (struct cb_args, const_binop_1, const_binop): Pass type of arg, not arg itself. (size_int_wide): Cache nodes even if garbage collecting. (twoval_comparison_p): Reenable SAVE_EXPR case if operand of SAVE_EXPR has no side effects. * cse.c: Move a comment. * tree.c: Minor reformatting. (int_size_in_bytes): Return -1 if constant overflows. * reload.c (combine_reloads): Do nothing if no output reload git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@31017 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/flow.c')
-rw-r--r--gcc/flow.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/gcc/flow.c b/gcc/flow.c
index 606f2064c55..eff2a05d686 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -103,8 +103,8 @@ Boston, MA 02111-1307, USA. */
a REG_INC element is added to the insn's REG_NOTES list.
life_analysis fills in certain vectors containing information about
- register usage: reg_n_refs, reg_n_deaths, reg_n_sets, reg_live_length,
- reg_n_calls_crosses and reg_basic_block.
+ register usage: REG_N_REFS, REG_N_DEATHS, REG_N_SETS, REG_LIVE_LENGTH,
+ REG_N_CALLS_CROSSED and REG_BASIC_BLOCK.
life_analysis sets current_function_sp_is_unchanging if the function
doesn't modify the stack pointer. */
@@ -178,10 +178,8 @@ varray_type basic_block_info;
/* The special entry and exit blocks. */
-struct basic_block_def entry_exit_blocks[2] =
-{
- {
- NULL, /* head */
+struct basic_block_def entry_exit_blocks[2]
+= {{NULL, /* head */
NULL, /* end */
NULL, /* pred */
NULL, /* succ */
@@ -2392,8 +2390,10 @@ calculate_loop_depth (dump)
/* The loop infrastructure does the real job for us. */
flow_loops_find (&loops);
+
if (dump)
flow_loops_dump (&loops, dump, 0);
+
flow_loops_free (&loops);
}
@@ -6802,6 +6802,7 @@ flow_loop_level_compute (loop, depth)
/* Compute the loop nesting depth and enclosed loop level for the loop
hierarchy tree specfied by LOOPS. Return the maximum enclosed loop
level. */
+
static int
flow_loops_level_compute (loops)
struct loops *loops;
@@ -6813,6 +6814,7 @@ flow_loops_level_compute (loops)
/* Find all the natural loops in the function and save in LOOPS structure
and recalculate loop_depth information in basic block structures.
Return the number of natural loops found. */
+
int
flow_loops_find (loops)
struct loops *loops;
@@ -6872,8 +6874,8 @@ flow_loops_find (loops)
flow_depth_first_order_compute (dfs_order);
/* Allocate loop structures. */
- loops->array = (struct loop *)
- xcalloc (num_loops, sizeof (struct loop));
+ loops->array
+ = (struct loop *) xcalloc (num_loops, sizeof (struct loop));
headers = sbitmap_alloc (n_basic_blocks);
sbitmap_zero (headers);
@@ -6921,8 +6923,8 @@ flow_loops_find (loops)
/* Find nodes contained within the loop. */
loop->nodes = sbitmap_alloc (n_basic_blocks);
- loop->num_nodes =
- flow_loop_nodes_find (header, latch, loop->nodes);
+ loop->num_nodes
+ = flow_loop_nodes_find (header, latch, loop->nodes);
/* Find edges which exit the loop. Note that a node
may have several exit edges. */