summaryrefslogtreecommitdiffstats
path: root/src/test/codegen/match-unoptimized.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:21 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:21 +0000
commit4e8199b572f2035b7749cba276ece3a26630d23e (patch)
treef09feeed6a0fe39d027b1908aa63ea6b35e4b631 /src/test/codegen/match-unoptimized.rs
parentAdding upstream version 1.66.0+dfsg1. (diff)
downloadrustc-4e8199b572f2035b7749cba276ece3a26630d23e.tar.xz
rustc-4e8199b572f2035b7749cba276ece3a26630d23e.zip
Adding upstream version 1.67.1+dfsg1.upstream/1.67.1+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/codegen/match-unoptimized.rs')
-rw-r--r--src/test/codegen/match-unoptimized.rs23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/codegen/match-unoptimized.rs b/src/test/codegen/match-unoptimized.rs
new file mode 100644
index 000000000..be40b29e3
--- /dev/null
+++ b/src/test/codegen/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
+// `src/test/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,
+ }
+}