From: Ian Lance Taylor <ian@gcc.gnu.org>
Date: Tue, 23 Jul 2019 17:20:36 +0000 (+0000)
Subject: compiler: use correct value type in 2-case select send
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=40768ee0bc9965d109692f884f8588626e01e3fe;p=gcc.git

compiler: use correct value type in 2-case select send

    In the channel-send case, the value to be sent may needs an
    (implicit) type conversion to the channel element type. This CL
    ensures that we use the correct value type for the send.

    Fixes golang/go#33235.

    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/187177

From-SVN: r273743
---

diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index dabd5a30989..ba7282efde4 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-b7bce0dbccb978d33eb8ce0bffc02fae2c2857c1
+480477ca64c3001b9c7e92ef8b978dc92a5912d2
 
 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 27c4b95781d..6d9c0eb2414 100644
--- a/gcc/go/gofrontend/statements.cc
+++ b/gcc/go/gofrontend/statements.cc
@@ -5880,6 +5880,7 @@ Select_statement::lower_two_case(Block* b)
      : this->clauses_->at(1));
   Location loc = this->location();
   Expression* chan = chancase.channel();
+  Type* valtype = chan->type()->channel_type()->element_type();
 
   Temporary_statement* chantmp = Statement::make_temporary(NULL, chan, loc);
   b->add_statement(chantmp);
@@ -5891,7 +5892,8 @@ Select_statement::lower_two_case(Block* b)
     {
       // if selectnbsend(chan, &val) { body } else { default body }
 
-      Temporary_statement* ts = Statement::make_temporary(NULL, chancase.val(), loc);
+      Temporary_statement* ts =
+        Statement::make_temporary(valtype, chancase.val(), loc);
       // Tell the escape analysis that the value escapes, as it may be sent
       // to a channel.
       ts->set_value_escapes();
@@ -5904,7 +5906,6 @@ Select_statement::lower_two_case(Block* b)
     }
   else
     {
-      Type* valtype = chan->type()->channel_type()->element_type();
       Temporary_statement* ts = Statement::make_temporary(valtype, NULL, loc);
       b->add_statement(ts);