[PATCH] epiphany: fix -Wimplicit-fallthrough warnings in epiphany.c.

[Martin Liška]

This fixes -Wformat-diag warnings.

Ready to be installed?
Thanks,
Martin

gcc/ChangeLog:

        * config/epiphany/epiphany.c (epiphany_mode_priority):
        Use gcc_unreachable for not handled cases.
---
 gcc/config/epiphany/epiphany.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/config/epiphany/epiphany.c b/gcc/config/epiphany/epiphany.c
index a2743436f38..88283419dc1 100644
--- a/gcc/config/epiphany/epiphany.c
+++ b/gcc/config/epiphany/epiphany.c
@@ -2369,6 +2369,7 @@ epiphany_mode_priority (int entity, int priority)
          case 2: return (epiphany_normal_fp_rounding == FP_MODE_ROUND_NEAREST
                          ? FP_MODE_ROUND_TRUNC : FP_MODE_ROUND_NEAREST);
          case 3: return FP_MODE_CALLER;
+         default: gcc_unreachable ();
          }
       case FP_MODE_ROUND_NEAREST:
       case FP_MODE_CALLER:
@@ -2378,6 +2379,7 @@ epiphany_mode_priority (int entity, int priority)
          case 1: return FP_MODE_ROUND_TRUNC;
          case 2: return FP_MODE_INT;
          case 3: return FP_MODE_CALLER;
+         default: gcc_unreachable ();
          }
       case FP_MODE_ROUND_TRUNC:
        switch (priority)
@@ -2386,6 +2388,7 @@ epiphany_mode_priority (int entity, int priority)
          case 1: return FP_MODE_ROUND_NEAREST;
          case 2: return FP_MODE_INT;
          case 3: return FP_MODE_CALLER;
+         default: gcc_unreachable ();
          }
       case FP_MODE_ROUND_UNKNOWN:
       case FP_MODE_NONE:
--
2.34.1