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authorGuillaume Gomez <guillaume1.gomez@gmail.com>2025-07-21 14:34:12 +0200
committerGuillaume Gomez <guillaume1.gomez@gmail.com>2025-07-22 14:28:48 +0200
commita27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch)
treeb033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs
parented93c1783b404d728d4809973a0550eb33cd293f (diff)
downloadrust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz
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Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs')
-rw-r--r--tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs18
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs b/tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs
new file mode 100644
index 00000000000..3b8a146838a
--- /dev/null
+++ b/tests/codegen-llvm/enum/enum-bounds-check-issue-82871.rs
@@ -0,0 +1,18 @@
+//@ compile-flags: -C opt-level=0
+
+#![crate_type = "lib"]
+
+#[repr(C)]
+pub enum E {
+    A,
+}
+
+// CHECK-LABEL: @index
+#[no_mangle]
+pub fn index(x: &[u32; 3], ind: E) -> u32 {
+    // Canary: we should be able to optimize out the bounds check, but we need
+    // to track the range of the discriminant result in order to be able to do that.
+    // oli-obk tried to add that, but that caused miscompilations all over the place.
+    // CHECK: panic_bounds_check
+    x[ind as usize]
+}