From ca2fe289df060b0564c52738e17f71e1d23366c0 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Wed, 16 Sep 2015 18:04:22 +0000 Subject: [PATCH] compiler: Don't crash on erroneous channel reads. Fixes golang/go#12320. Reviewed-on: https://go-review.googlesource.com/13932 From-SVN: r227834 --- gcc/go/gofrontend/MERGE | 2 +- gcc/go/gofrontend/expressions.cc | 9 +++++++++ 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE index fb61c64ea31..c150747ae36 100644 --- a/gcc/go/gofrontend/MERGE +++ b/gcc/go/gofrontend/MERGE @@ -1,4 +1,4 @@ -79f457a267ff2bf8e65db4bcec0cbc7add79227a +1cb26dc898bda1e85f4dd2ee204adbce792e4813 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/expressions.cc b/gcc/go/gofrontend/expressions.cc index 49d4d27071a..542f3de6fbb 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -3472,6 +3472,15 @@ Unsafe_type_conversion_expression::do_get_backend(Translate_context* context) Type* t = this->type_; Type* et = this->expr_->type(); + + if (t->is_error_type() + || this->expr_->is_error_expression() + || et->is_error_type()) + { + go_assert(saw_errors()); + return context->backend()->error_expression(); + } + if (t->array_type() != NULL) go_assert(et->array_type() != NULL && t->is_slice_type() == et->is_slice_type()); -- 2.30.2