From f77abdb15691289dd517b2ace2a08c010f578d9d Mon Sep 17 00:00:00 2001
From: Dzmitry Malyshau <kvark@fastmail.com>
Date: Sun, 25 Apr 2021 12:50:49 -0400
Subject: [PATCH] [spv-out] generate LogicalNot for bools

---
 src/back/spv/writer.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/back/spv/writer.rs b/src/back/spv/writer.rs
index ffd05a6078..ed81608bb4 100644
--- a/src/back/spv/writer.rs
+++ b/src/back/spv/writer.rs
@@ -1575,7 +1575,10 @@ impl Writer {
                             return Err(Error::FeatureNotImplemented("negation"));
                         }
                     },
-                    crate::UnaryOperator::Not => spirv::Op::Not,
+                    crate::UnaryOperator::Not => match expr_ty_inner.scalar_kind() {
+                        Some(crate::ScalarKind::Bool) => spirv::Op::LogicalNot,
+                        _ => spirv::Op::Not,
+                    },
                 };
 
                 block