mirror of https://github.com/rust-lang/rust.git
89 lines
2.3 KiB
Diff
89 lines
2.3 KiB
Diff
- // MIR for `test` before GVN
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+ // MIR for `test` after GVN
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fn test() -> () {
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let mut _0: ();
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let _1: &std::boxed::Box<()>;
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let _2: &std::boxed::Box<()>;
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let _3: std::boxed::Box<()>;
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let mut _6: *const ();
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let mut _8: *const [()];
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let mut _9: std::boxed::Box<()>;
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let mut _10: *const ();
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let mut _11: usize;
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scope 1 {
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debug vp_ctx => _1;
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let _4: *const ();
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scope 2 {
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debug slf => _10;
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let _5: *const [()];
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scope 3 {
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debug bytes => _5;
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let _7: *mut ();
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scope 4 {
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debug _x => _7;
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}
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scope 7 (inlined foo) {
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}
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}
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scope 5 (inlined slice_from_raw_parts::<()>) {
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scope 6 (inlined std::ptr::from_raw_parts::<[()], ()>) {
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}
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}
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}
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}
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bb0: {
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StorageLive(_1);
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- StorageLive(_2);
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+ nop;
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StorageLive(_3);
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_3 = Box::<()>::new(const ()) -> [return: bb1, unwind continue];
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}
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bb1: {
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_2 = &_3;
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_1 = copy _2;
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- StorageDead(_2);
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+ nop;
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StorageLive(_4);
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- _9 = deref_copy _3;
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+ _9 = copy _3;
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_10 = copy ((_9.0: std::ptr::Unique<()>).0: std::ptr::NonNull<()>) as *const () (Transmute);
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_4 = copy _10;
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- StorageLive(_5);
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+ nop;
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StorageLive(_6);
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- _6 = copy _4;
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+ _6 = copy _10;
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StorageLive(_11);
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_11 = const 1_usize;
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- _5 = *const [()] from (copy _6, copy _11);
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+ _5 = *const [()] from (copy _10, const 1_usize);
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StorageDead(_11);
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StorageDead(_6);
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StorageLive(_7);
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StorageLive(_8);
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_8 = copy _5;
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- _7 = copy _8 as *mut () (PtrToPtr);
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+ _7 = copy _5 as *mut () (PtrToPtr);
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StorageDead(_8);
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StorageDead(_7);
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- StorageDead(_5);
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+ nop;
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StorageDead(_4);
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drop(_3) -> [return: bb2, unwind: bb3];
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}
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bb2: {
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StorageDead(_3);
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StorageDead(_1);
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return;
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}
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bb3 (cleanup): {
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resume;
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}
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}
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