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Diffstat (limited to 'gcc/config/pdp11/pdp11.h')
-rw-r--r--gcc/config/pdp11/pdp11.h8
1 files changed, 3 insertions, 5 deletions
diff --git a/gcc/config/pdp11/pdp11.h b/gcc/config/pdp11/pdp11.h
index ff2f9a2..f4c9186 100644
--- a/gcc/config/pdp11/pdp11.h
+++ b/gcc/config/pdp11/pdp11.h
@@ -441,9 +441,8 @@ extern int may_call_alloca;
#define MOVE_MAX 2
-/* Nonzero if access to memory by byte is slow and undesirable. -
-*/
-#define SLOW_BYTE_ACCESS 0
+/* Nonzero if access to memory by byte is no faster than by word. */
+#define SLOW_BYTE_ACCESS 1
/* Do not break .stabs pseudos into continuations. */
#define DBX_CONTIN_LENGTH 0
@@ -453,8 +452,7 @@ extern int may_call_alloca;
#define SELECT_CC_MODE(OP,X,Y) pdp11_cc_mode (OP, X, Y)
-/* Enable compare elimination pass.
- FIXME: how can this be enabled for two registers? */
+/* Enable compare elimination pass. */
#undef TARGET_FLAGS_REGNUM
#define TARGET_FLAGS_REGNUM CC_REGNUM