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* [gcc/devel/rust/master] gccrs: fix ICE when closure body is not a block
@ 2023-04-06 21:29 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2023-04-06 21:29 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:89d83fd0e81825eeec4070d94851b8efc8e8c117
commit 89d83fd0e81825eeec4070d94851b8efc8e8c117
Author: Philip Herron <herron.philip@googlemail.com>
Date: Wed Mar 29 16:14:04 2023 +0100
gccrs: fix ICE when closure body is not a block
Fixes: #2052
gcc/rust/ChangeLog:
* backend/rust-compile-expr.cc (CompileExpr::generate_closure_function):
when its not a block we dont have any ribs to generate locals from
gcc/testsuite/ChangeLog:
* rust/execute/torture/issue-2052.rs: New test.
Signed-off-by: Philip Herron <herron.philip@googlemail.com>
Diff:
---
gcc/rust/backend/rust-compile-expr.cc | 23 ++++++++++++++---------
gcc/testsuite/rust/execute/torture/issue-2052.rs | 15 +++++++++++++++
2 files changed, 29 insertions(+), 9 deletions(-)
diff --git a/gcc/rust/backend/rust-compile-expr.cc b/gcc/rust/backend/rust-compile-expr.cc
index 6a7b2eb1394..904c47b86be 100644
--- a/gcc/rust/backend/rust-compile-expr.cc
+++ b/gcc/rust/backend/rust-compile-expr.cc
@@ -2880,20 +2880,25 @@ CompileExpr::generate_closure_function (HIR::ClosureExpr &expr,
// lookup locals
HIR::Expr *function_body = expr.get_expr ().get ();
- auto body_mappings = function_body->get_mappings ();
- Resolver::Rib *rib = nullptr;
- bool ok
- = ctx->get_resolver ()->find_name_rib (body_mappings.get_nodeid (), &rib);
- rust_assert (ok);
+ bool is_block_expr
+ = function_body->get_expression_type () == HIR::Expr::ExprType::Block;
+
+ std::vector<Bvariable *> locals = {};
+ if (is_block_expr)
+ {
+ auto body_mappings = function_body->get_mappings ();
+ Resolver::Rib *rib = nullptr;
+ bool ok
+ = ctx->get_resolver ()->find_name_rib (body_mappings.get_nodeid (),
+ &rib);
+ rust_assert (ok);
- std::vector<Bvariable *> locals
- = compile_locals_for_block (ctx, *rib, fndecl);
+ locals = compile_locals_for_block (ctx, *rib, fndecl);
+ }
tree enclosing_scope = NULL_TREE;
Location start_location = function_body->get_locus ();
Location end_location = function_body->get_locus ();
- bool is_block_expr
- = function_body->get_expression_type () == HIR::Expr::ExprType::Block;
if (is_block_expr)
{
HIR::BlockExpr *body = static_cast<HIR::BlockExpr *> (function_body);
diff --git a/gcc/testsuite/rust/execute/torture/issue-2052.rs b/gcc/testsuite/rust/execute/torture/issue-2052.rs
new file mode 100644
index 00000000000..6c15eb3a470
--- /dev/null
+++ b/gcc/testsuite/rust/execute/torture/issue-2052.rs
@@ -0,0 +1,15 @@
+#[lang = "fn_once"]
+pub trait FnOnce<Args> {
+ #[lang = "fn_once_output"]
+ type Output;
+
+ extern "rust-call" fn call_once(self, args: Args) -> Self::Output;
+}
+
+pub fn f() -> i32 {
+ (|| 42)()
+}
+
+pub fn main() -> i32 {
+ f() - 42
+}
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