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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/issue-73031.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/issue-73031.rs')
-rw-r--r-- | tests/codegen/issue-73031.rs | 26 |
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 000000000..a09c4bcfb --- /dev/null +++ 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, + } +} |