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-rw-r--r--gcc/rust/parse/rust-parse-impl.h4
-rw-r--r--gcc/testsuite/rust/compile/torture/ifunaryexpr.rs22
2 files changed, 26 insertions, 0 deletions
diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 731e0b3..fa6d409 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -12547,6 +12547,8 @@ Parser<ManagedTokenSource>::null_denotation (const_TokenPtr tok,
case MINUS: { // unary minus
ParseRestrictions entered_from_unary;
entered_from_unary.entered_from_unary = true;
+ if (!restrictions.can_be_struct_expr)
+ entered_from_unary.can_be_struct_expr = false;
std::unique_ptr<AST::Expr> expr
= parse_expr (LBP_UNARY_MINUS, {}, entered_from_unary);
@@ -12571,6 +12573,8 @@ Parser<ManagedTokenSource>::null_denotation (const_TokenPtr tok,
case EXCLAM: { // logical or bitwise not
ParseRestrictions entered_from_unary;
entered_from_unary.entered_from_unary = true;
+ if (!restrictions.can_be_struct_expr)
+ entered_from_unary.can_be_struct_expr = false;
std::unique_ptr<AST::Expr> expr
= parse_expr (LBP_UNARY_EXCLAM, {}, entered_from_unary);
diff --git a/gcc/testsuite/rust/compile/torture/ifunaryexpr.rs b/gcc/testsuite/rust/compile/torture/ifunaryexpr.rs
new file mode 100644
index 0000000..8f0bb87
--- /dev/null
+++ b/gcc/testsuite/rust/compile/torture/ifunaryexpr.rs
@@ -0,0 +1,22 @@
+extern "C"
+{
+ pub fn abort ();
+}
+
+struct B { b: bool }
+
+pub fn main ()
+{
+ let n = 1;
+ if 0 > -n { } else { unsafe { abort (); } }
+
+ let b = true;
+ if !b { unsafe { abort (); } }
+ if !!b { } else { unsafe { abort (); } }
+
+ let bb = B { b: false };
+
+ if !bb.b && !b { unsafe { abort (); } }
+
+ if (B { b: true }).b { } else { unsafe { abort (); } }
+}