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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/codegen/issue-73031.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/codegen/issue-73031.rs')
-rw-r--r--tests/codegen/issue-73031.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/codegen/issue-73031.rs b/tests/codegen/issue-73031.rs
new file mode 100644
index 00000000000..a09c4bcfbea
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+++ b/tests/codegen/issue-73031.rs
@@ -0,0 +1,26 @@
+// compile-flags: -O
+#![crate_type = "lib"]
+
+// Test that LLVM can eliminate the unreachable `All::None` branch.
+
+pub enum All {
+    None,
+    Foo,
+    Bar,
+}
+
+// CHECK-LABEL: @issue_73031
+#[no_mangle]
+pub fn issue_73031(a: &mut All, q: i32) -> i32 {
+    *a = if q == 5 {
+        All::Foo
+    } else {
+        All::Bar
+    };
+    match *a {
+        // CHECK-NOT: panic
+        All::None => panic!(),
+        All::Foo => 1,
+        All::Bar => 2,
+    }
+}