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-rw-r--r--gcc/machmode.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/machmode.h b/gcc/machmode.h
index 30d1a8ccb38..f979b95ea0b 100644
--- a/gcc/machmode.h
+++ b/gcc/machmode.h
@@ -279,4 +279,8 @@ extern void init_adjust_machine_modes (void);
TRULY_NOOP_TRUNCATION (GET_MODE_PRECISION (MODE1), \
GET_MODE_PRECISION (MODE2))
+#define HWI_COMPUTABLE_MODE_P(MODE) \
+ (SCALAR_INT_MODE_P (MODE) \
+ && GET_MODE_PRECISION (MODE) <= HOST_BITS_PER_WIDE_INT)
+
#endif /* not HAVE_MACHINE_MODES */