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-rw-r--r--gcc/cfg.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/cfg.c b/gcc/cfg.c
index a0f326a5db7..c1cf389e69f 100644
--- a/gcc/cfg.c
+++ b/gcc/cfg.c
@@ -78,7 +78,9 @@ static void free_edge (edge);
void
init_flow (void)
{
-
+ if (!cfun->cfg)
+ cfun->cfg = ggc_alloc_cleared (sizeof (struct control_flow_graph));
+ n_edges = 0;
ENTRY_BLOCK_PTR = ggc_alloc_cleared (sizeof (struct basic_block_def));
ENTRY_BLOCK_PTR->index = ENTRY_BLOCK;
EXIT_BLOCK_PTR = ggc_alloc_cleared (sizeof (struct basic_block_def));