bjoernager/rust
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add llvm_floatabi field to target spec that controls FloatABIType

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This commit is contained in:
Ralf Jung 2024-12-30 19:08:03 +01:00
parent fff026c8e5
commit a0dbb37ebd
3 changed files with 67 additions and 4 deletions
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16
compiler/rustc_codegen_llvm/src/back/write.rs
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@ -26,7 +26,7 @@ use rustc_session::config::{
self, Lto, OutputType, Passes, RemapPathScopeComponents, SplitDwarfKind, SwitchWithOptPath,
};
use rustc_span::{BytePos, InnerSpan, Pos, SpanData, SyntaxContext, sym};
use rustc_target::spec::{CodeModel, RelocModel, SanitizerSet, SplitDebuginfo, TlsModel};
use rustc_target::spec::{CodeModel, FloatAbi, RelocModel, SanitizerSet, SplitDebuginfo, TlsModel};
use tracing::debug;
use crate::back::lto::ThinBuffer;
@ -40,7 +40,7 @@ use crate::errors::{
WithLlvmError, WriteBytecode,
};
use crate::llvm::diagnostic::OptimizationDiagnosticKind::*;
use crate::llvm::{self, DiagnosticInfo, FloatAbi, PassManager};
use crate::llvm::{self, DiagnosticInfo, PassManager};
use crate::type_::Type;
use crate::{LlvmCodegenBackend, ModuleLlvm, base, common, llvm_util};
@ -181,6 +181,14 @@ pub(crate) fn to_llvm_code_model(code_model: Option<CodeModel>) -> llvm::CodeMod
}
}
fn to_llvm_float_abi(float_abi: Option<FloatAbi>) -> llvm::FloatAbi {
match float_abi {
None => llvm::FloatAbi::Default,
Some(FloatAbi::Soft) => llvm::FloatAbi::Soft,
Some(FloatAbi::Hard) => llvm::FloatAbi::Hard,
}
}
pub(crate) fn target_machine_factory(
sess: &Session,
optlvl: config::OptLevel,
@ -190,11 +198,11 @@ pub(crate) fn target_machine_factory(
let (opt_level, _) = to_llvm_opt_settings(optlvl);
let float_abi = if sess.target.arch == "arm" && sess.opts.cg.soft_float {
FloatAbi::Soft
llvm::FloatAbi::Soft
} 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.
FloatAbi::Default
to_llvm_float_abi(sess.target.llvm_floatabi)
};
let ffunction_sections =