combine.c (simplify_comparison): Add canonical FALLTHROUGH comments.

	* combine.c (simplify_comparison): Add canonical FALLTHROUGH comments.
	* config/i386/i386.c (ix86_dep_by_shift_count_body): Add FALLTHROUGH
	comments.  Remove break after return.
	(ix86_fp_compare_code_to_integer, has_dispatch,
	ix86_simd_clone_usable): Remove break after return.

From-SVN: r240523

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fa647886249bd2d328bb48f72e3a6b3cb4d8d0f4..1a2d42fe96fbe17b4277232e9312631d135ad144 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2016-09-27  Jakub Jelinek  <jakub@redhat.com>
+
+       * combine.c (simplify_comparison): Add canonical FALLTHROUGH comments.
+       * config/i386/i386.c (ix86_dep_by_shift_count_body): Add FALLTHROUGH
+       comments.  Remove break after return.
+       (ix86_fp_compare_code_to_integer, has_dispatch,
+       ix86_simd_clone_usable): Remove break after return.
+
 2016-09-27  Bernd Edlinger  <bernd.edlinger@hotmail.de>
 
        PR rlt-optimization/77714

diff --git a/gcc/combine.c b/gcc/combine.c
index b22a274802990133dcbb1b68ce1d49f334c515bb..b27aae5f02fb8547a8b6440b524d030870561a62 100644 (file)
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -11923,11 +11923,11 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
             we can treat the SUBREG as if it were a ZERO_EXTEND.  */
          if (subreg_lowpart_p (op0)
              && GET_MODE_PRECISION (GET_MODE (SUBREG_REG (op0))) < mode_width)
-           /* Fall through */ ;
+           ;
          else
            break;
 
-         /* ... fall through ...  */
+         /* FALLTHROUGH */
 
        case ZERO_EXTEND:
          mode = GET_MODE (XEXP (op0, 0));
@@ -12339,7 +12339,7 @@ simplify_comparison (enum rtx_code code, rtx *pop0, rtx *pop1)
              continue;
            }
 
-         /* ... fall through ...  */
+         /* FALLTHROUGH */
        case LSHIFTRT:
          /* If we have (compare (xshiftrt FOO N) (const_int C)) and
             the low order N bits of FOO are known to be zero, we can do this

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 256893b34d389c6ee874f54738b13ac57eadcbe4..e0b2d5703be6ecd15666d51258cf3449993f2915 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -21238,9 +21238,9 @@ ix86_dep_by_shift_count_body (const_rtx set_body, const_rtx use_body)
        if (ix86_dep_by_shift_count_body (XVECEXP (set_body, 0, i),
                                          use_body))
          return true;
+      /* FALLTHROUGH */
     default:
       return false;
-      break;
     }
 
   /* Retrieve shift count of USE_BODY.  */
@@ -21254,9 +21254,9 @@ ix86_dep_by_shift_count_body (const_rtx set_body, const_rtx use_body)
        if (ix86_dep_by_shift_count_body (set_body,
                                          XVECEXP (use_body, 0, i)))
          return true;
+      /* FALLTHROUGH */
     default:
       return false;
-      break;
     }
 
   if (shift_rtx
@@ -22370,19 +22370,14 @@ ix86_fp_compare_code_to_integer (enum rtx_code code)
     case ORDERED:
     case UNORDERED:
       return code;
-      break;
     case UNEQ:
       return EQ;
-      break;
     case UNLT:
       return LTU;
-      break;
     case UNLE:
       return LEU;
-      break;
     case LTGT:
       return NE;
-      break;
     default:
       return UNKNOWN;
     }
@@ -49501,7 +49496,6 @@ has_dispatch (rtx_insn *insn, int action)
 
       case IS_DISPATCH_ON:
        return true;
-       break;
 
       case IS_CMP:
        return is_cmp (insn);
@@ -49959,7 +49953,6 @@ ix86_simd_clone_usable (struct cgraph_node *node)
       if (!TARGET_AVX)
        return -1;
       return TARGET_AVX2 ? 1 : 0;
-      break;
     case 'd':
       if (!TARGET_AVX2)
        return -1;