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Merge commit 'e8dca3e87d164d2806098c462c6ce41301341f68' into sync_from_cg_gcc

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Antoni Boucher
2022-06-06 22:04:37 -04:00
parent 50b00252ae e8dca3e87d
commit 3fac982e07
41 changed files with 7933 additions and 592 deletions
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10
compiler/rustc_codegen_gcc/src/base.rs
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@@ -78,9 +78,19 @@ pub fn compile_codegen_unit<'tcx>(tcx: TyCtxt<'tcx>, cgu_name: Symbol, supports_
let context = Context::default();
// TODO(antoyo): only set on x86 platforms.
context.add_command_line_option("-masm=intel");
// TODO(antoyo): only add the following cli argument if the feature is supported.
context.add_command_line_option("-msse2");
context.add_command_line_option("-mavx2");
context.add_command_line_option("-msha");
context.add_command_line_option("-mpclmul");
// FIXME(antoyo): the following causes an illegal instruction on vmovdqu64 in std_example on my CPU.
// Only add if the CPU supports it.
//context.add_command_line_option("-mavx512f");
for arg in &tcx.sess.opts.cg.llvm_args {
context.add_command_line_option(arg);
}
// NOTE: This is needed to compile the file src/intrinsic/archs.rs during a bootstrap of rustc.
context.add_command_line_option("-fno-var-tracking-assignments");
// NOTE: an optimization (https://github.com/rust-lang/rustc_codegen_gcc/issues/53).
context.add_command_line_option("-fno-semantic-interposition");
// NOTE: Rust relies on LLVM not doing TBAA (https://github.com/rust-lang/unsafe-code-guidelines/issues/292).