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The current playground link used in the page of MIR shows a optimized… #1789

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Merged
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Sep 8, 2023
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The current playground link used in the page of MIR shows a optimized… #1789

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Updated index.md to add a command which can show unoptimized MIR
Prashant-Shekhar-Rao Sep 7, 2023
c21ab4f
typo
tshepang Sep 8, 2023
ef1640b
grammar
tshepang Sep 8, 2023
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6 changes: 6 additions & 0 deletions src/mir/index.md
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Expand Up @@ -62,6 +62,12 @@ show you the MIR for your program. Try putting this program into play
button on the top:

[sample-play]: https://play.rust-lang.org/?gist=30074856e62e74e91f06abd19bd72ece&version=stable
MIR shown by above link is optimized.
Some statements like `StorageLive` are removed in optimization.
This happens because the compiler notices the value is never accessed in the code.
We can use `rustc [filename].rs -Z mir-opt-level=0 --emit mir` to view unoptimized MIR.
This requires the nightly toolchain.


```rust
fn main() {
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