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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /src/test/mir-opt/simplify_arm_identity.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/mir-opt/simplify_arm_identity.rs')
-rw-r--r-- | src/test/mir-opt/simplify_arm_identity.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/mir-opt/simplify_arm_identity.rs b/src/test/mir-opt/simplify_arm_identity.rs new file mode 100644 index 000000000..cf6ff57aa --- /dev/null +++ b/src/test/mir-opt/simplify_arm_identity.rs @@ -0,0 +1,26 @@ +// Checks that `SimplifyArmIdentity` is not applied if enums have incompatible layouts. +// Regression test for issue #66856. +// +// compile-flags: -Zmir-opt-level=3 +// EMIT_MIR_FOR_EACH_BIT_WIDTH + +// This pass is broken since deaggregation changed +// ignore-test + +enum Src { + Foo(u8), + Bar, +} + +enum Dst { + Foo(u8), +} + +// EMIT_MIR simplify_arm_identity.main.SimplifyArmIdentity.diff +fn main() { + let e: Src = Src::Foo(0); + let _: Dst = match e { + Src::Foo(x) => Dst::Foo(x), + Src::Bar => Dst::Foo(0), + }; +} |