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-rw-r--r--soft-fp/op-common.h8
-rw-r--r--soft-fp/soft-fp.h9
2 files changed, 13 insertions, 4 deletions
diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h
index 0a2f86aad9..83c2156954 100644
--- a/soft-fp/op-common.h
+++ b/soft-fp/op-common.h
@@ -927,7 +927,7 @@
 	  break;						\
 								\
 	default:						\
-	  abort ();						\
+	  _FP_UNREACHABLE;					\
 	}							\
     }								\
   while (0)
@@ -1092,7 +1092,7 @@
 	  break;							\
 									\
 	default:							\
-	  abort ();							\
+	  _FP_UNREACHABLE;						\
 	}								\
 									\
       /* T = X * Y is zero, infinity or NaN.  */			\
@@ -1148,7 +1148,7 @@
 	  break;							\
 									\
 	default:							\
-	  abort ();							\
+	  _FP_UNREACHABLE;						\
 	}								\
     done_fma: ;								\
     }									\
@@ -1215,7 +1215,7 @@
 	  break;						\
 								\
 	default:						\
-	  abort ();						\
+	  _FP_UNREACHABLE;					\
 	}							\
     }								\
   while (0)
diff --git a/soft-fp/soft-fp.h b/soft-fp/soft-fp.h
index bb68df9160..b247125a39 100644
--- a/soft-fp/soft-fp.h
+++ b/soft-fp/soft-fp.h
@@ -51,6 +51,15 @@
 # endif
 #endif
 
+/* For unreachable default cases in switch statements over bitwise OR
+   of FP_CLS_* values.  */
+#if (defined __GNUC__							\
+     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)))
+# define _FP_UNREACHABLE	__builtin_unreachable ()
+#else
+# define _FP_UNREACHABLE	abort ()
+#endif
+
 /* In the Linux kernel, some architectures have a single function that
    uses different kinds of unpacking and packing depending on the
    instruction being emulated, meaning it is not readily visible to