From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/mir-opt/simplify-arm-identity.rs | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 src/test/mir-opt/simplify-arm-identity.rs (limited to 'src/test/mir-opt/simplify-arm-identity.rs') 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..bedc86bba --- /dev/null +++ b/src/test/mir-opt/simplify-arm-identity.rs @@ -0,0 +1,23 @@ +// 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 + +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), + }; +} -- cgit v1.2.3