Add codegen test for issue #73827

Author: bugadani

src/test/codegen/issue-73827-bounds-check-index-in-subexpr.rs

@@ -0,0 +1,18 @@
+// This test checks that bounds checks are elided when
+// index is part of a (x | y) < C style condition
+
+// min-llvm-version: 11.0.0
+// compile-flags: -O
+
+#![crate_type = "lib"]
+
+// CHECK-LABEL: @get
+#[no_mangle]
+pub fn get(array: &[u8; 8], x: usize, y: usize) -> u8 {
+    if x > 7 || y > 7 {
+        0
+    } else {
+        // CHECK-NOT: panic_bounds_check
+        array[y]
+    }
+}