tree af3a67426a3446d16d6421bb0f75da809c920c5f
parent 297cf346f2400274946650ab9ecd039427fc986b
author Than McIntosh <thanm@google.com> 1512484066 -0500
committer Ian Lance Taylor <iant@golang.org> 1512567072 +0000

compiler: handle set-and-use-temp in nilcheck code

Change the code in Unary_expression::do_get_backend that introduces
explicit nil checks for dereference operations to special case
set-and-use-temporary expressions. For this case it is better to
generate an explicit reference of the temp in the final conditional
(avoids introducing tree sharing).

Change-Id: Ic7d83605d93212af36ef8f069ffbb080e9697db8
Reviewed-on: https://go-review.googlesource.com/81915
Reviewed-by: Ian Lance Taylor <iant@golang.org>