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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 /src/test/mir-opt/early_otherwise_branch_soundness.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 'src/test/mir-opt/early_otherwise_branch_soundness.rs')
-rw-r--r-- | src/test/mir-opt/early_otherwise_branch_soundness.rs | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/test/mir-opt/early_otherwise_branch_soundness.rs b/src/test/mir-opt/early_otherwise_branch_soundness.rs deleted file mode 100644 index cd4589232..000000000 --- a/src/test/mir-opt/early_otherwise_branch_soundness.rs +++ /dev/null @@ -1,32 +0,0 @@ -// unit-test: EarlyOtherwiseBranch - -// Tests various cases that the `early_otherwise_branch` opt should *not* optimize - -// From #78496 -enum E<'a> { - Empty, - Some(&'a E<'a>), -} - -// EMIT_MIR early_otherwise_branch_soundness.no_downcast.EarlyOtherwiseBranch.diff -fn no_downcast(e: &E) -> u32 { - if let E::Some(E::Some(_)) = e { 1 } else { 2 } -} - -// SAFETY: if `a` is `Some`, `b` must point to a valid, initialized value -// EMIT_MIR early_otherwise_branch_soundness.no_deref_ptr.EarlyOtherwiseBranch.diff -unsafe fn no_deref_ptr(a: Option<i32>, b: *const Option<i32>) -> i32 { - match a { - // `*b` being correct depends on `a == Some(_)` - Some(_) => match *b { - Some(v) => v, - _ => 0, - }, - _ => 0, - } -} - -fn main() { - no_downcast(&E::Empty); - unsafe { no_deref_ptr(None, std::ptr::null()) }; -} |