llvm_asm!() with indirects broken on LLVM 14 #92794
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A-LLVM
Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
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@Amanieu To avoid unnecessary work, how far away are we from just deleting llvm_asm, now that asm has been stabilized? |
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nikic
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flip1995
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Jan 27, 2022
Remove deprecated LLVM-style inline assembly The `llvm_asm!` was deprecated back in rust-lang#87590 1.56.0, with intention to remove it once `asm!` was stabilized, which already happened in rust-lang#91728 1.59.0. Now it is time to remove `llvm_asm!` to avoid continued maintenance cost. Closes rust-lang#70173. Closes rust-lang#92794. Closes rust-lang#87612. Closes rust-lang#82065. cc `@rust-lang/wg-inline-asm` r? `@Amanieu`
bjorn3
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Feb 23, 2022
Remove deprecated LLVM-style inline assembly The `llvm_asm!` was deprecated back in rust-lang#87590 1.56.0, with intention to remove it once `asm!` was stabilized, which already happened in rust-lang#91728 1.59.0. Now it is time to remove `llvm_asm!` to avoid continued maintenance cost. Closes rust-lang#70173. Closes rust-lang#92794. Closes rust-lang#87612. Closes rust-lang#82065. cc `@rust-lang/wg-inline-asm` r? `@Amanieu`
calebcartwright
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Mar 30, 2022
Remove deprecated LLVM-style inline assembly The `llvm_asm!` was deprecated back in rust-lang#87590 1.56.0, with intention to remove it once `asm!` was stabilized, which already happened in rust-lang#91728 1.59.0. Now it is time to remove `llvm_asm!` to avoid continued maintenance cost. Closes rust-lang#70173. Closes rust-lang#92794. Closes rust-lang#87612. Closes rust-lang#82065. cc `@rust-lang/wg-inline-asm` r? `@Amanieu`
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This broke at LLVM change bec726f - I've spent some time poking at it but it looks like it may require the attention of someone a little more familiar with inline assembly than me. Basically we need to explicitly emit the elementtype(TYPE) attribute for each indirect argument of an inline assembly call. That's mostly easy for outputs, but for inputs I think it's going to take a bit of a refactor to make it work.
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