diff options
Diffstat (limited to 'src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs')
-rw-r--r-- | src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs new file mode 100644 index 000000000..13f1b3f47 --- /dev/null +++ b/src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs @@ -0,0 +1,15 @@ +// compile-flags: -O + +// EMIT_MIR mutable_variable_unprop_assign.main.ConstProp.diff +fn main() { + let a = foo(); + let mut x: (i32, i32) = (1, 2); + x.1 = a; + let y = x.1; + let z = x.0; // this could theoretically be allowed, but we can't handle it right now +} + +#[inline(never)] +fn foo() -> i32 { + unimplemented!() +} |