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* [gcc/devel/rust/master] Preserve inside_loop context when compiling match
@ 2022-06-08 12:42 Thomas Schwinge
0 siblings, 0 replies; only message in thread
From: Thomas Schwinge @ 2022-06-08 12:42 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:0472834ddf177038d343b193acab70b2859656f8
commit 0472834ddf177038d343b193acab70b2859656f8
Author: David Faust <david.faust@oracle.com>
Date: Tue May 3 15:12:24 2022 -0700
Preserve inside_loop context when compiling match
Diff:
---
gcc/rust/typecheck/rust-hir-type-check-expr.h | 2 +-
gcc/testsuite/rust/execute/torture/match_loop1.rs | 51 +++++++++++++++++++++++
2 files changed, 52 insertions(+), 1 deletion(-)
diff --git a/gcc/rust/typecheck/rust-hir-type-check-expr.h b/gcc/rust/typecheck/rust-hir-type-check-expr.h
index 5633751c5a0..f1dff2cb0f2 100644
--- a/gcc/rust/typecheck/rust-hir-type-check-expr.h
+++ b/gcc/rust/typecheck/rust-hir-type-check-expr.h
@@ -1027,7 +1027,7 @@ public:
// check the kase type
TyTy::BaseType *kase_block_ty
- = TypeCheckExpr::Resolve (kase.get_expr ().get (), false);
+ = TypeCheckExpr::Resolve (kase.get_expr ().get (), inside_loop);
kase_block_tys.push_back (kase_block_ty);
}
diff --git a/gcc/testsuite/rust/execute/torture/match_loop1.rs b/gcc/testsuite/rust/execute/torture/match_loop1.rs
new file mode 100644
index 00000000000..d3aab6bc0bf
--- /dev/null
+++ b/gcc/testsuite/rust/execute/torture/match_loop1.rs
@@ -0,0 +1,51 @@
+// { dg-output "E::One\nE::Two\nbreak!\n" }
+
+extern "C" {
+ fn printf(s: *const i8, ...);
+}
+
+enum E {
+ One,
+ Two,
+ Other
+}
+
+fn foo () {
+ let mut x = E::One;
+
+ loop {
+ match x {
+ E::One => {
+ let a = "E::One\n\0";
+ let b = a as *const str;
+ let c = b as *const i8;
+ printf (c);
+
+ x = E::Two;
+ }
+ E::Two => {
+ let a = "E::Two\n\0";
+ let b = a as *const str;
+ let c = b as *const i8;
+ printf (c);
+
+ x = E::Other;
+ }
+ _ => {
+ let a = "break!\n\0";
+ let b = a as *const str;
+ let c = b as *const i8;
+ printf (c);
+
+ break;
+ }
+ }
+ }
+}
+
+
+fn main () -> i32 {
+ foo ();
+
+ 0
+}
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