diff options
Diffstat (limited to 'gcc/tree-scalar-evolution.c')
| -rw-r--r-- | gcc/tree-scalar-evolution.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/gcc/tree-scalar-evolution.c b/gcc/tree-scalar-evolution.c index cc80794..262ec76 100644 --- a/gcc/tree-scalar-evolution.c +++ b/gcc/tree-scalar-evolution.c @@ -2608,6 +2608,16 @@ scev_initialize (void) } } +/* Clean the scalar evolution analysis cache, but preserve the cached + numbers of iterations for the loops. */ + +void +scev_reset_except_niters (void) +{ + if (scalar_evolution_info) + htab_empty (scalar_evolution_info); +} + /* Cleans up the information cached by the scalar evolutions analysis. */ void @@ -2619,7 +2629,8 @@ scev_reset (void) if (!scalar_evolution_info || !current_loops) return; - htab_empty (scalar_evolution_info); + scev_reset_except_niters (); + FOR_EACH_LOOP (li, loop, 0) { loop->nb_iterations = NULL_TREE; |