use matches!() macro in more places

3 files changed, 6 insertions, 8 deletions

diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs
index 4ac93f71619..6807d02519e 100644
--- a/compiler/rustc_mir_transform/src/coverage/mod.rs
+++ b/compiler/rustc_mir_transform/src/coverage/mod.rs
@@ -485,7 +485,7 @@ fn inject_statement(
 
 // Non-code expressions are injected into the coverage map, without generating executable code.
 fn inject_intermediate_expression(mir_body: &mut mir::Body<'tcx>, expression: CoverageKind) {
-    debug_assert!(if let CoverageKind::Expression { .. } = expression { true } else { false });
+    debug_assert!(matches!(expression, CoverageKind::Expression { .. }));
     debug!("  injecting non-code expression {:?}", expression);
     let inject_in_bb = mir::START_BLOCK;
     let data = &mut mir_body[inject_in_bb];
diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs
index cc525a4d6b9..d13fa0729cd 100644
--- a/compiler/rustc_mir_transform/src/coverage/spans.rs
+++ b/compiler/rustc_mir_transform/src/coverage/spans.rs
@@ -94,10 +94,9 @@ impl CoverageSpan {
         stmt_index: usize,
     ) -> Self {
         let is_closure = match statement.kind {
-            StatementKind::Assign(box (_, Rvalue::Aggregate(box ref kind, _))) => match kind {
-                AggregateKind::Closure(_, _) | AggregateKind::Generator(_, _, _) => true,
-                _ => false,
-            },
+            StatementKind::Assign(box (_, Rvalue::Aggregate(box ref kind, _))) => {
+                matches!(kind, AggregateKind::Closure(_, _) | AggregateKind::Generator(_, _, _))
+            }
             _ => false,
         };
 
diff --git a/compiler/rustc_mir_transform/src/unreachable_prop.rs b/compiler/rustc_mir_transform/src/unreachable_prop.rs
index baf381081dd..64cd6f56a9f 100644
--- a/compiler/rustc_mir_transform/src/unreachable_prop.rs
+++ b/compiler/rustc_mir_transform/src/unreachable_prop.rs
@@ -27,9 +27,8 @@ impl MirPass<'_> for UnreachablePropagation {
             // This is a temporary solution that handles possibly diverging asm statements.
             // Accompanying testcases: mir-opt/unreachable_asm.rs and mir-opt/unreachable_asm_2.rs
             let asm_stmt_in_block = || {
-                bb_data.statements.iter().any(|stmt: &Statement<'_>| match stmt.kind {
-                    StatementKind::LlvmInlineAsm(..) => true,
-                    _ => false,
+                bb_data.statements.iter().any(|stmt: &Statement<'_>| {
+                    matches!(stmt.kind, StatementKind::LlvmInlineAsm(..))
                 })
             };