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From: Arthur Cohen <cohenarthur@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc r13-6211] gccrs: intrinsics: Add `sorry_handler` intrinsic
 handler
X-Act-Checkin: gcc
X-Git-Author: Arthur Cohen <arthur.cohen@embecosm.com>
X-Git-Refname: refs/heads/master
X-Git-Oldrev: 4d39d3912ffeec47134f46f705ed48a248df226c
X-Git-Newrev: 782e070374acd7e20a883958d5e0c30f2b032338
Message-Id: <20230221120009.8A0103858284@sourceware.org>
Date: Tue, 21 Feb 2023 12:00:09 +0000 (GMT)
List-Id: <gcc-cvs.sourceware.org>

https://gcc.gnu.org/g:782e070374acd7e20a883958d5e0c30f2b032338

commit r13-6211-g782e070374acd7e20a883958d5e0c30f2b032338
Author: Arthur Cohen <arthur.cohen@embecosm.com>
Date:   Tue Oct 25 10:48:43 2022 +0200

    gccrs: intrinsics: Add `sorry_handler` intrinsic handler
    
    gcc/rust/ChangeLog:
    
            * backend/rust-compile-intrinsic.cc (sorry_handler): New intrinsic handler.
    
    gcc/testsuite/ChangeLog:
    
            * rust/compile/torture/intrinsics-3.rs: New test.

Diff:
---
 gcc/rust/backend/rust-compile-intrinsic.cc         | 10 ++++++++++
 gcc/testsuite/rust/compile/torture/intrinsics-3.rs |  9 +++++++++
 2 files changed, 19 insertions(+)

diff --git a/gcc/rust/backend/rust-compile-intrinsic.cc b/gcc/rust/backend/rust-compile-intrinsic.cc
index a418b863210..2a2091ccc25 100644
--- a/gcc/rust/backend/rust-compile-intrinsic.cc
+++ b/gcc/rust/backend/rust-compile-intrinsic.cc
@@ -93,6 +93,15 @@ prefetch_write_data (Context *ctx, TyTy::FnType *fntype)
   return prefetch_data_handler (ctx, fntype, Prefetch::Write);
 }
 
+static inline tree
+sorry_handler (Context *ctx, TyTy::FnType *fntype)
+{
+  rust_sorry_at (fntype->get_locus (), "intrinsic %qs is not yet implemented",
+		 fntype->get_identifier ().c_str ());
+
+  return error_mark_node;
+}
+
 static const std::map<std::string,
 		      std::function<tree (Context *, TyTy::FnType *)>>
   generic_intrinsics = {
@@ -107,6 +116,7 @@ static const std::map<std::string,
     {"copy_nonoverlapping", &copy_nonoverlapping_handler},
     {"prefetch_read_data", &prefetch_read_data},
     {"prefetch_write_data", &prefetch_write_data},
+    {"atomic_load", &sorry_handler},
 };
 
 Intrinsics::Intrinsics (Context *ctx) : ctx (ctx) {}
diff --git a/gcc/testsuite/rust/compile/torture/intrinsics-3.rs b/gcc/testsuite/rust/compile/torture/intrinsics-3.rs
new file mode 100644
index 00000000000..1acb3533c08
--- /dev/null
+++ b/gcc/testsuite/rust/compile/torture/intrinsics-3.rs
@@ -0,0 +1,9 @@
+extern "rust-intrinsic" {
+    fn not_an_intrinsic();
+    fn atomic_load(); // { dg-message "sorry, unimplemented: intrinsic .atomic_load. is not yet implemented" }
+}
+
+fn main() {
+    unsafe { not_an_intrinsic() }; // { dg-error "unknown builtin intrinsic: not_an_intrinsic" }
+    unsafe { atomic_load() };
+}