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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/real.h4
2 files changed, 8 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7178c5a..26f9a37 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-30 Richard Sandiford <richard.sandiford@arm.com>
+
+ * real.h (REAL_MODE_FORMAT): Abort if the mode isn't a
+ SCALAR_FLOAT_MODE_P.
+
2015-10-30 Alan Lawrence <alan.lawrence@arm.com>
* tree-sra.c (scalarizable_type_p): Comment variable-length arrays.
diff --git a/gcc/real.h b/gcc/real.h
index e65b526..d3b14e5 100644
--- a/gcc/real.h
+++ b/gcc/real.h
@@ -167,7 +167,9 @@ extern const struct real_format *
(real_format_for_mode[DECIMAL_FLOAT_MODE_P (MODE) \
? (((MODE) - MIN_MODE_DECIMAL_FLOAT) \
+ (MAX_MODE_FLOAT - MIN_MODE_FLOAT + 1)) \
- : ((MODE) - MIN_MODE_FLOAT)])
+ : GET_MODE_CLASS (MODE) == MODE_FLOAT \
+ ? ((MODE) - MIN_MODE_FLOAT) \
+ : (gcc_unreachable (), 0)])
#define FLOAT_MODE_FORMAT(MODE) \
(REAL_MODE_FORMAT (SCALAR_FLOAT_MODE_P (MODE)? (MODE) \