bjoernager/rust
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Add -Z llvm_module_flag

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Allow adding values to the `!llvm.module.flags` metadata for a generated
module.  The syntax is

`-Z llvm_module_flag=<name>:<type>:<value>:<behavior>`

Currently only u32 values are supported but the type is required to be
specified for forward compatibility.  The `behavior` element must match
one of the named LLVM metadata behaviors.viors.

This flag is expected to be perma-unstable.
This commit is contained in:
Paul Menage 2023-10-09 02:22:14 -07:00
parent 2c1b65ee14
commit 2e6b57541d
5 changed files with 68 additions and 0 deletions
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1
compiler/rustc_interface/src/tests.rs
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@ -771,6 +771,7 @@ fn test_unstable_options_tracking_hash() {
tracked!(instrument_xray, Some(InstrumentXRay::default()));
tracked!(link_directives, false);
tracked!(link_only, true);
tracked!(llvm_module_flag, vec![("bar".to_string(), 123, "max".to_string())]);
tracked!(llvm_plugins, vec![String::from("plugin_name")]);
tracked!(location_detail, LocationDetail { file: true, line: false, column: false });
tracked!(maximal_hir_to_mir_coverage, true);