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deprecate -Csoft-float because it is unsound (and not fixable)

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This commit is contained in:
Ralf Jung 2024-09-03 10:49:16 +02:00
parent 9b82580c73
commit df38e644ce
5 changed files with 39 additions and 2 deletions
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8
compiler/rustc_codegen_llvm/src/back/write.rs
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@ -185,7 +185,13 @@ pub(crate) fn target_machine_factory(
let reloc_model = to_llvm_relocation_model(sess.relocation_model());
let (opt_level, _) = to_llvm_opt_settings(optlvl);
let use_softfp = sess.opts.cg.soft_float;
let use_softfp = if sess.target.arch == "arm" && sess.target.abi == "eabihf" {
sess.opts.cg.soft_float
} else {
// `validate_commandline_args_with_session_available` has already warned about this being ignored.
// Let's make sure LLVM doesn't suddenly start using this flag on more targets.
false
};
let ffunction_sections =
sess.opts.unstable_opts.function_sections.unwrap_or(sess.target.function_sections);