[BPF] Allow selectively disable compiler builtins for BPF target #4
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- the calls to rust alloc/dealloc routines need to be preserved and not replaced by compiler generated builtin inlined code
jackcmay
reviewed
Feb 17, 2021
| LibFunc &F) const { | ||
| // Intrinsics don't overlap w/libcalls; if our module has a large number of | ||
| // intrinsics, this ends up being an interesting compile time win since we | ||
| // avoid string normalization and comparison. |
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let's keep it... the trailing white space is bad in source code (my editor automatically deletes it on saving a file)
jackcmay
reviewed
Feb 17, 2021
| } | ||
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| if (T.isBPF()) { | ||
| TLI.setUnavailable(LibFunc_rust_alloc); |
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Why does llvm have to have any knowledge of these rust functions?
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it does. It replaces them with internal built-ins, which these calls to TLI.setUnavailable() prevent from happening.
LucasSte
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Feb 16, 2024
* [BPF] Make rust allocation builtins unavailable for BPF target - the calls to rust alloc/dealloc routines need to be preserved and not replaced by compiler generated builtin inlined code
LucasSte
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to LucasSte/llvm-project
that referenced
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Jun 28, 2024
…a-xyz#4) * [BPF] Make rust allocation builtins unavailable for BPF target - the calls to rust alloc/dealloc routines need to be preserved and not replaced by compiler generated builtin inlined code
LucasSte
pushed a commit
that referenced
this pull request
Aug 19, 2024
* [BPF] Make rust allocation builtins unavailable for BPF target - the calls to rust alloc/dealloc routines need to be preserved and not replaced by compiler generated builtin inlined code
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