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-rw-r--r--gcc/config/pdp11/pdp11.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/gcc/config/pdp11/pdp11.h b/gcc/config/pdp11/pdp11.h
index 30bb630c2cb..2c16aa80ddb 100644
--- a/gcc/config/pdp11/pdp11.h
+++ b/gcc/config/pdp11/pdp11.h
@@ -888,9 +888,6 @@ extern int may_call_alloca;
#define MOVE_MAX 2
-/* Zero extension is faster if the target is known to be zero */
-/* #define SLOW_ZERO_EXTEND */
-
/* Nonzero if access to memory by byte is slow and undesirable. -
*/
#define SLOW_BYTE_ACCESS 0