From 5a0d645ede33cd42d88f1be6da70c631778b3038 Mon Sep 17 00:00:00 2001
From: Wolfgang Bumiller <wry.git@bumiller.com>
Date: Sun, 23 Jul 2017 09:33:19 +0200
Subject: [PATCH] cleanup: silence fallthrough warnings

---
 fold.cpp   | 7 +++++--
 parser.cpp | 4 ++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fold.cpp b/fold.cpp
index 7a0df0e..7b13db6 100644
--- a/fold.cpp
+++ b/fold.cpp
@@ -1392,8 +1392,8 @@ ast_expression *fold::op(const oper_info *info, ast_expression **opexprs) {
         return nullptr;
 
     switch(info->operands) {
-        case 3: if(!c) return nullptr;
-        case 2: if(!b) return nullptr;
+        case 3: if(!c) return nullptr; [[fallthrough]];
+        case 2: if(!b) return nullptr; [[fallthrough]];
         case 1:
         if(!a) {
             compile_error(ctx(), "internal error: fold_op no operands to fold\n");
@@ -1560,6 +1560,7 @@ ast_expression *fold::superfluous(ast_expression *left, ast_expression *right, i
         case INSTR_DIV_F:
             if (swapped)
                 return nullptr;
+            [[fallthrough]];
         case INSTR_MUL_F:
             if (immvalue_float(load) == 1.0f) {
                 ++opts_optimizationcount[OPTIM_PEEPHOLE];
@@ -1572,6 +1573,7 @@ ast_expression *fold::superfluous(ast_expression *left, ast_expression *right, i
         case INSTR_SUB_F:
             if (swapped)
                 return nullptr;
+            [[fallthrough]];
         case INSTR_ADD_F:
             if (immvalue_float(load) == 0.0f) {
                 ++opts_optimizationcount[OPTIM_PEEPHOLE];
@@ -1591,6 +1593,7 @@ ast_expression *fold::superfluous(ast_expression *left, ast_expression *right, i
         case INSTR_SUB_V:
             if (swapped)
                 return nullptr;
+            [[fallthrough]];
         case INSTR_ADD_V:
             if (vec3_cmp(immvalue_vector(load), vec3_create(0, 0, 0))) {
                 ++opts_optimizationcount[OPTIM_PEEPHOLE];
diff --git a/parser.cpp b/parser.cpp
index e365316..92434f0 100644
--- a/parser.cpp
+++ b/parser.cpp
@@ -728,6 +728,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
 
         case opid2('|','|'):
             generated_op += 1; /* INSTR_OR */
+            [[fallthrough]];
         case opid2('&','&'):
             generated_op += INSTR_AND;
             if (!(out = parser->m_fold.op(op, exprs))) {
@@ -857,10 +858,13 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy)
 
         case opid1('>'):
             generated_op += 1; /* INSTR_GT */
+            [[fallthrough]];
         case opid1('<'):
             generated_op += 1; /* INSTR_LT */
+            [[fallthrough]];
         case opid2('>', '='):
             generated_op += 1; /* INSTR_GE */
+            [[fallthrough]];
         case opid2('<', '='):
             generated_op += INSTR_LE;
             if (NotSameType(TYPE_FLOAT)) {
-- 
2.39.2