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-rw-r--r--tests/codegen-llvm/match-unoptimized.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/codegen-llvm/match-unoptimized.rs b/tests/codegen-llvm/match-unoptimized.rs
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+++ b/tests/codegen-llvm/match-unoptimized.rs
@@ -0,0 +1,23 @@
+//@ compile-flags: -C no-prepopulate-passes -Copt-level=0
+
+#![crate_type = "lib"]
+
+#[repr(u16)]
+pub enum E2 {
+    A = 13,
+    B = 42,
+}
+
+// For unoptimized code we produce a `br` instead of a `switch`. Compare with
+// `tests/codegen/match-optimized.rs`
+
+// CHECK-LABEL: @exhaustive_match_2
+#[no_mangle]
+pub fn exhaustive_match_2(e: E2) -> u8 {
+    // CHECK: %[[CMP:.+]] = icmp eq i16 %{{.+}}, 13
+    // CHECK-NEXT: br i1 %[[CMP:.+]],
+    match e {
+        E2::A => 0,
+        E2::B => 1,
+    }
+}