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-rw-r--r--gcc/flags.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/flags.h b/gcc/flags.h
index 7fec383bdd7..dec686dfe38 100644
--- a/gcc/flags.h
+++ b/gcc/flags.h
@@ -555,6 +555,10 @@ extern int frame_pointer_needed;
extern int flag_check_memory_usage;
+/* Nonzero if the generated code should trap on signed overflow
+ for PLUS / SUB / MULT. */
+extern int flag_trapv;
+
/* Nonzero if GCC must prefix function names (used with
flag_check_memory_usage). */
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