From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 21 Nov 2017 06:14:32 +0000 (+0000)
Subject: compiler: report error for ++/-- applied to a non-numeric type
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5e43a9eeca114f99248c46495449d6fd4fc2b63e;p=gcc.git

compiler: report error for ++/-- applied to a non-numeric type

    This avoids a compiler crash.

    Fixes GCC PR 83071.

    Reviewed-on: https://go-review.googlesource.com/78875

From-SVN: r254983
---

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 4832c782946..ed351c032ed 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-cb5dc1ce98857884a2215c461dd1d7de530f9f5e
+5485b3faed476f6d051833d1790b5f77be9d1efc
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/gcc/go/gofrontend/statements.cc b/gcc/go/gofrontend/statements.cc
index b22f690b3d6..e97798008ea 100644
--- a/gcc/go/gofrontend/statements.cc
+++ b/gcc/go/gofrontend/statements.cc
@@ -1826,6 +1826,11 @@ Statement*
 Inc_dec_statement::do_lower(Gogo*, Named_object*, Block*, Statement_inserter*)
 {
   Location loc = this->location();
+  if (!this->expr_->type()->is_numeric_type())
+    {
+      this->report_error("increment or decrement of non-numeric type");
+      return Statement::make_error_statement(loc);
+    }
   Expression* oexpr = Expression::make_integer_ul(1, this->expr_->type(), loc);
   Operator op = this->is_inc_ ? OPERATOR_PLUSEQ : OPERATOR_MINUSEQ;
   return Statement::make_assignment_operation(op, this->expr_, oexpr, loc);