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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/mir-opt/separate_const_switch.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/mir-opt/separate_const_switch.rs')
-rw-r--r-- | tests/mir-opt/separate_const_switch.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/mir-opt/separate_const_switch.rs b/tests/mir-opt/separate_const_switch.rs new file mode 100644 index 000000000..c809e5629 --- /dev/null +++ b/tests/mir-opt/separate_const_switch.rs @@ -0,0 +1,31 @@ +#![feature(control_flow_enum)] +#![feature(try_trait_v2)] + +use std::ops::ControlFlow; + +// EMIT_MIR separate_const_switch.too_complex.SeparateConstSwitch.diff +fn too_complex(x: Result<i32, usize>) -> Option<i32> { + // The pass should break the outer match into + // two blocks that only have one parent each. + // Parents are one of the two branches of the first + // match, so a later pass can propagate constants. + match { + match x { + Ok(v) => ControlFlow::Continue(v), + Err(r) => ControlFlow::Break(r), + } + } { + ControlFlow::Continue(v) => Some(v), + ControlFlow::Break(r) => None, + } +} + +// EMIT_MIR separate_const_switch.identity.SeparateConstSwitch.diff +fn identity(x: Result<i32, i32>) -> Result<i32, i32> { + Ok(x?) +} + +fn main() { + too_complex(Ok(0)); + identity(Ok(0)); +} |