From 41dfa93fb8d0cfd3a64ba3e6eba9fbbe1d66090c Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 15 Sep 2017 21:07:54 +0000 Subject: [PATCH] compiler: check error expression in Array_type::get_backend_length Otherwise, a zero length is created in the backend and the backend doesn't know there is an error. Reviewed-on: https://go-review.googlesource.com/61610 From-SVN: r252849 --- gcc/go/gofrontend/MERGE | 2 +- gcc/go/gofrontend/types.cc | 5 +++++ 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE index a1ccb2bc75e..a63d921ab57 100644 --- a/gcc/go/gofrontend/MERGE +++ b/gcc/go/gofrontend/MERGE @@ -1,4 +1,4 @@ -4e063a8eee636cce17aea48c7183e78431174de3 +de7b370901c4fc6852eaa7372282bb699429ec4a 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/types.cc b/gcc/go/gofrontend/types.cc index e91922c1cac..a00b80a7e6c 100644 --- a/gcc/go/gofrontend/types.cc +++ b/gcc/go/gofrontend/types.cc @@ -7638,6 +7638,11 @@ Array_type::get_backend_length(Gogo* gogo) go_assert(this->length_ != NULL); if (this->blength_ == NULL) { + if (this->length_->is_error_expression()) + { + this->blength_ = gogo->backend()->error_expression(); + return this->blength_; + } Numeric_constant nc; mpz_t val; if (this->length_->numeric_constant_value(&nc) && nc.to_int(&val)) -- 2.30.2