From: Philip Herron <herron.philip@googlemail.com>
Date: Thu, 20 Apr 2023 10:55:20 +0000 (+0100)
Subject: gccrs: Fix ICE in assignment of error type bound predicates
X-Git-Tag: basepoints/gcc-15~2619
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cd587fbc1de242a389209974f468dcd8094abb74;p=thirdparty%2Fgcc.git

gccrs: Fix ICE in assignment of error type bound predicates

gcc/rust/ChangeLog:

	* typecheck/rust-tyty-bounds.cc (TypeBoundPredicate::operator=):
	we are done if other is in an error state

Signed-off-by: Philip Herron <herron.philip@googlemail.com>
---

diff --git a/gcc/rust/typecheck/rust-tyty-bounds.cc b/gcc/rust/typecheck/rust-tyty-bounds.cc
index 23a2926faeba..dc4418ff27b7 100644
--- a/gcc/rust/typecheck/rust-tyty-bounds.cc
+++ b/gcc/rust/typecheck/rust-tyty-bounds.cc
@@ -360,6 +360,9 @@ TypeBoundPredicate::operator= (const TypeBoundPredicate &other)
   for (const auto &p : other.get_substs ())
     substitutions.push_back (p.clone ());
 
+  if (other.is_error ())
+    return *this;
+
   std::vector<SubstitutionArg> mappings;
   for (size_t i = 0; i < other.used_arguments.get_mappings ().size (); i++)
     {