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Diffstat (limited to 'tests/mir-opt/const_prop/discriminant.rs')
-rw-r--r-- | tests/mir-opt/const_prop/discriminant.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/mir-opt/const_prop/discriminant.rs b/tests/mir-opt/const_prop/discriminant.rs new file mode 100644 index 000000000..fdd67ca8a --- /dev/null +++ b/tests/mir-opt/const_prop/discriminant.rs @@ -0,0 +1,13 @@ +// unit-test: ConstProp +// compile-flags: -O + +// FIXME(wesleywiser): Ideally, we could const-prop away all of this and just be left with +// `let x = 42` but that doesn't work because const-prop doesn't support `Operand::Indirect` +// and `InterpCx::eval_place()` always forces an allocation which creates the `Indirect`. +// Fixing either of those will allow us to const-prop this away. + +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR discriminant.main.ConstProp.diff +fn main() { + let x = (if let Some(true) = Some(true) { 42 } else { 10 }) + 0; +} |