From 71d7e561bdc2e58cef7fedcec1970dafc852bb61 Mon Sep 17 00:00:00 2001
From: Antoni Boucher <bouanto@zoho.com>
Date: Tue, 3 Jan 2023 08:56:00 -0500
Subject: Comment

---
 src/builder.rs | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src')

diff --git a/src/builder.rs b/src/builder.rs
index 082b7be8c4e..fd674ed0b87 100644
--- a/src/builder.rs
+++ b/src/builder.rs
@@ -1210,6 +1210,14 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> {
     fn cleanup_landing_pad(&mut self, _ty: Type<'gcc>, pers_fn: RValue<'gcc>) -> RValue<'gcc> {
         self.set_personality_fn(pers_fn);
 
+        /*
+         * Matching GCC exception handling with LLVM:
+         *
+         *    GCC                 LLVM
+         *    CATCH_EXPR          landing pad catch clause
+         *    TRY_FINALLY_EXPR    cleanup
+         */
+
         self.cleanup_blocks.borrow_mut().insert(self.block);
 
         // FIXME: we're probably not creating a real cleanup pad here.
-- 
cgit 1.4.1-3-g733a5