31 lines
763 B
Rust
31 lines
763 B
Rust
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#![feature(custom_mir, core_intrinsics)]
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#![crate_type = "lib"]
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use std::intrinsics::mir::*;
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// unit-test: SimplifyCfg-after-uninhabited-enum-branching
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// EMIT_MIR simplify_duplicate_unreachable_blocks.assert_nonzero_nonmax.SimplifyCfg-after-uninhabited-enum-branching.diff
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#[custom_mir(dialect = "runtime", phase = "post-cleanup")]
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pub unsafe fn assert_nonzero_nonmax(x: u8) -> u8 {
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mir!(
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{
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match x {
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0 => unreachable1,
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u8::MAX => unreachable2,
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_ => retblock,
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}
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}
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unreachable1 = {
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Unreachable()
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}
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unreachable2 = {
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Unreachable()
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}
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retblock = {
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RET = x;
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Return()
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}
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)
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}
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