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-rw-r--r--gcc/final.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/final.c b/gcc/final.c
index 948ecd3..d5a1a30 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1644,7 +1644,10 @@ final_start_function (first, file, optimize)
if (write_symbols)
{
number_blocks (current_function_decl);
- remove_unncessary_notes ();
+ /* Scheduling packs block notes together at the top of a basic block,
+ so we can't learn anything from them. */
+ if (! flag_schedule_insns && ! flag_schedule_insns_after_reload)
+ remove_unncessary_notes ();
/* We never actually put out begin/end notes for the top-level
block in the function. But, conceptually, that block is
always needed. */