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Merge commit '9a0c32934e' into sync_cg_clif-2021-03-05

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This commit is contained in:
bjorn3 2021-03-05 19:12:59 +01:00
commit 7a6ea77473
73 changed files with 1145 additions and 2596 deletions
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55
compiler/rustc_codegen_cranelift/src/lib.rs
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@ -11,8 +11,6 @@
#![warn(unused_lifetimes)]
#![warn(unreachable_pub)]
#[cfg(feature = "jit")]
extern crate libc;
extern crate snap;
#[macro_use]
extern crate rustc_middle;
@ -53,7 +51,6 @@ mod abi;
mod allocator;
mod analyze;
mod archive;
mod atomic_shim;
mod backend;
mod base;
mod cast;
@ -129,9 +126,9 @@ impl<F: Fn() -> String> Drop for PrintOnPanic<F> {
}
}
struct CodegenCx<'tcx, M: Module> {
struct CodegenCx<'m, 'tcx: 'm> {
tcx: TyCtxt<'tcx>,
module: M,
module: &'m mut dyn Module,
global_asm: String,
constants_cx: ConstantCx,
cached_context: Context,
@ -140,14 +137,20 @@ struct CodegenCx<'tcx, M: Module> {
unwind_context: UnwindContext<'tcx>,
}
impl<'tcx, M: Module> CodegenCx<'tcx, M> {
fn new(tcx: TyCtxt<'tcx>, module: M, debug_info: bool, pic_eh_frame: bool) -> Self {
let unwind_context = UnwindContext::new(tcx, module.isa(), pic_eh_frame);
let debug_context = if debug_info {
Some(DebugContext::new(tcx, module.isa()))
} else {
None
};
impl<'m, 'tcx> CodegenCx<'m, 'tcx> {
fn new(
tcx: TyCtxt<'tcx>,
backend_config: BackendConfig,
module: &'m mut dyn Module,
debug_info: bool,
) -> Self {
let unwind_context = UnwindContext::new(
tcx,
module.isa(),
matches!(backend_config.codegen_mode, CodegenMode::Aot),
);
let debug_context =
if debug_info { Some(DebugContext::new(tcx, module.isa())) } else { None };
CodegenCx {
tcx,
module,
@ -160,14 +163,9 @@ impl<'tcx, M: Module> CodegenCx<'tcx, M> {
}
}
fn finalize(mut self) -> (M, String, Option<DebugContext<'tcx>>, UnwindContext<'tcx>) {
self.constants_cx.finalize(self.tcx, &mut self.module);
(
self.module,
self.global_asm,
self.debug_context,
self.unwind_context,
)
fn finalize(self) -> (String, Option<DebugContext<'tcx>>, UnwindContext<'tcx>) {
self.constants_cx.finalize(self.tcx, self.module);
(self.global_asm, self.debug_context, self.unwind_context)
}
}
@ -302,14 +300,7 @@ fn build_isa(sess: &Session) -> Box<dyn isa::TargetIsa + 'static> {
flags_builder.enable("is_pic").unwrap();
flags_builder.set("enable_probestack", "false").unwrap(); // __cranelift_probestack is not provided
flags_builder
.set(
"enable_verifier",
if cfg!(debug_assertions) {
"true"
} else {
"false"
},
)
.set("enable_verifier", if cfg!(debug_assertions) { "true" } else { "false" })
.unwrap();
let tls_model = match target_triple.binary_format {
@ -338,11 +329,7 @@ fn build_isa(sess: &Session) -> Box<dyn isa::TargetIsa + 'static> {
let flags = settings::Flags::new(flags_builder);
let variant = if cfg!(feature = "oldbe") {
cranelift_codegen::isa::BackendVariant::Legacy
} else {
cranelift_codegen::isa::BackendVariant::MachInst
};
let variant = cranelift_codegen::isa::BackendVariant::MachInst;
let mut isa_builder = cranelift_codegen::isa::lookup_variant(target_triple, variant).unwrap();
// Don't use "haswell", as it implies `has_lzcnt`.macOS CI is still at Ivy Bridge EP, so `lzcnt`
// is interpreted as `bsr`.