diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/enum-bounds-check-derived-idx.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/enum-bounds-check-derived-idx.rs')
-rw-r--r-- | tests/codegen/enum-bounds-check-derived-idx.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/codegen/enum-bounds-check-derived-idx.rs b/tests/codegen/enum-bounds-check-derived-idx.rs new file mode 100644 index 000000000..aa66c2ed0 --- /dev/null +++ b/tests/codegen/enum-bounds-check-derived-idx.rs @@ -0,0 +1,24 @@ +// This test checks an optimization that is not guaranteed to work. This test case should not block +// a future LLVM update. +// compile-flags: -O + +#![crate_type = "lib"] + +pub enum Bar { + A = 1, + B = 3, +} + +// CHECK-LABEL: @lookup_inc +#[no_mangle] +pub fn lookup_inc(buf: &[u8; 5], f: Bar) -> u8 { + // CHECK-NOT: panic_bounds_check + buf[f as usize + 1] +} + +// CHECK-LABEL: @lookup_dec +#[no_mangle] +pub fn lookup_dec(buf: &[u8; 5], f: Bar) -> u8 { + // CHECK-NOT: panic_bounds_check + buf[f as usize - 1] +} |