1 // Copyright 2013 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 use rustc::dep_graph::DepGraphSafe;
15 use rustc::hir::def_id::DefId;
20 use monomorphize::Instance;
23 use monomorphize::partitioning::CodegenUnit;
25 use type_of::PointeeInfo;
27 use rustc_data_structures::base_n;
28 use rustc::mir::mono::Stats;
29 use rustc::session::config::{self, DebugInfo};
30 use rustc::session::Session;
31 use rustc::ty::layout::{LayoutError, LayoutOf, Size, TyLayout};
32 use rustc::ty::{self, Ty, TyCtxt};
33 use rustc::util::nodemap::FxHashMap;
34 use rustc_target::spec::{HasTargetSpec, Target};
36 use std::ffi::{CStr, CString};
37 use std::cell::{Cell, RefCell};
41 use syntax::symbol::LocalInternedString;
44 /// There is one `CodegenCx` per compilation unit. Each one has its own LLVM
45 /// `llvm::Context` so that several compilation units may be optimized in parallel.
46 /// All other LLVM data structures in the `CodegenCx` are tied to that `llvm::Context`.
47 pub struct CodegenCx<'a, 'tcx: 'a> {
48 pub tcx: TyCtxt<'a, 'tcx, 'tcx>,
49 pub check_overflow: bool,
50 pub use_dll_storage_attrs: bool,
51 pub tls_model: llvm::ThreadLocalMode,
53 pub llmod: &'a llvm::Module,
54 pub llcx: &'a llvm::Context,
55 pub stats: RefCell<Stats>,
56 pub codegen_unit: Arc<CodegenUnit<'tcx>>,
58 /// Cache instances of monomorphic and polymorphic items
59 pub instances: RefCell<FxHashMap<Instance<'tcx>, &'a Value>>,
60 /// Cache generated vtables
61 pub vtables: RefCell<FxHashMap<(Ty<'tcx>,
62 Option<ty::PolyExistentialTraitRef<'tcx>>), &'a Value>>,
63 /// Cache of constant strings,
64 pub const_cstr_cache: RefCell<FxHashMap<LocalInternedString, &'a Value>>,
66 /// Reverse-direction for const ptrs cast from globals.
67 /// Key is a Value holding a *T,
68 /// Val is a Value holding a *[T].
70 /// Needed because LLVM loses pointer->pointee association
71 /// when we ptrcast, and we have to ptrcast during codegen
72 /// of a [T] const because we form a slice, a (*T,usize) pair, not
73 /// a pointer to an LLVM array type. Similar for trait objects.
74 pub const_unsized: RefCell<FxHashMap<&'a Value, &'a Value>>,
76 /// Cache of emitted const globals (value -> global)
77 pub const_globals: RefCell<FxHashMap<&'a Value, &'a Value>>,
79 /// Mapping from static definitions to their DefId's.
80 pub statics: RefCell<FxHashMap<&'a Value, DefId>>,
82 /// List of globals for static variables which need to be passed to the
83 /// LLVM function ReplaceAllUsesWith (RAUW) when codegen is complete.
84 /// (We have to make sure we don't invalidate any Values referring
86 pub statics_to_rauw: RefCell<Vec<(&'a Value, &'a Value)>>,
88 /// Statics that will be placed in the llvm.used variable
89 /// See http://llvm.org/docs/LangRef.html#the-llvm-used-global-variable for details
90 pub used_statics: RefCell<Vec<&'a Value>>,
92 pub lltypes: RefCell<FxHashMap<(Ty<'tcx>, Option<usize>), &'a Type>>,
93 pub scalar_lltypes: RefCell<FxHashMap<Ty<'tcx>, &'a Type>>,
94 pub pointee_infos: RefCell<FxHashMap<(Ty<'tcx>, Size), Option<PointeeInfo>>>,
95 pub isize_ty: &'a Type,
97 pub dbg_cx: Option<debuginfo::CrateDebugContext<'a, 'tcx>>,
99 eh_personality: Cell<Option<&'a Value>>,
100 eh_unwind_resume: Cell<Option<&'a Value>>,
101 pub rust_try_fn: Cell<Option<&'a Value>>,
103 intrinsics: RefCell<FxHashMap<&'static str, &'a Value>>,
105 /// A counter that is used for generating local symbol names
106 local_gen_sym_counter: Cell<usize>,
109 impl<'a, 'tcx> DepGraphSafe for CodegenCx<'a, 'tcx> {
112 pub fn get_reloc_model(sess: &Session) -> llvm::RelocMode {
113 let reloc_model_arg = match sess.opts.cg.relocation_model {
114 Some(ref s) => &s[..],
115 None => &sess.target.target.options.relocation_model[..],
118 match ::back::write::RELOC_MODEL_ARGS.iter().find(
119 |&&arg| arg.0 == reloc_model_arg) {
122 sess.err(&format!("{:?} is not a valid relocation mode",
124 sess.abort_if_errors();
130 fn get_tls_model(sess: &Session) -> llvm::ThreadLocalMode {
131 let tls_model_arg = match sess.opts.debugging_opts.tls_model {
132 Some(ref s) => &s[..],
133 None => &sess.target.target.options.tls_model[..],
136 match ::back::write::TLS_MODEL_ARGS.iter().find(
137 |&&arg| arg.0 == tls_model_arg) {
140 sess.err(&format!("{:?} is not a valid TLS model",
142 sess.abort_if_errors();
148 fn is_any_library(sess: &Session) -> bool {
149 sess.crate_types.borrow().iter().any(|ty| {
150 *ty != config::CrateType::Executable
154 pub fn is_pie_binary(sess: &Session) -> bool {
155 !is_any_library(sess) && get_reloc_model(sess) == llvm::RelocMode::PIC
158 pub unsafe fn create_module(
160 llcx: &'ll llvm::Context,
162 ) -> &'ll llvm::Module {
163 let mod_name = CString::new(mod_name).unwrap();
164 let llmod = llvm::LLVMModuleCreateWithNameInContext(mod_name.as_ptr(), llcx);
166 // Ensure the data-layout values hardcoded remain the defaults.
167 if sess.target.target.options.is_builtin {
168 let tm = ::back::write::create_target_machine(sess, false);
169 llvm::LLVMRustSetDataLayoutFromTargetMachine(llmod, tm);
170 llvm::LLVMRustDisposeTargetMachine(tm);
172 let data_layout = llvm::LLVMGetDataLayout(llmod);
173 let data_layout = str::from_utf8(CStr::from_ptr(data_layout).to_bytes())
174 .ok().expect("got a non-UTF8 data-layout from LLVM");
176 // Unfortunately LLVM target specs change over time, and right now we
177 // don't have proper support to work with any more than one
178 // `data_layout` than the one that is in the rust-lang/rust repo. If
179 // this compiler is configured against a custom LLVM, we may have a
180 // differing data layout, even though we should update our own to use
183 // As an interim hack, if CFG_LLVM_ROOT is not an empty string then we
184 // disable this check entirely as we may be configured with something
185 // that has a different target layout.
187 // Unsure if this will actually cause breakage when rustc is configured
191 let cfg_llvm_root = option_env!("CFG_LLVM_ROOT").unwrap_or("");
192 let custom_llvm_used = cfg_llvm_root.trim() != "";
194 if !custom_llvm_used && sess.target.target.data_layout != data_layout {
195 bug!("data-layout for builtin `{}` target, `{}`, \
196 differs from LLVM default, `{}`",
197 sess.target.target.llvm_target,
198 sess.target.target.data_layout,
203 let data_layout = CString::new(&sess.target.target.data_layout[..]).unwrap();
204 llvm::LLVMSetDataLayout(llmod, data_layout.as_ptr());
206 let llvm_target = sess.target.target.llvm_target.as_bytes();
207 let llvm_target = CString::new(llvm_target).unwrap();
208 llvm::LLVMRustSetNormalizedTarget(llmod, llvm_target.as_ptr());
210 if is_pie_binary(sess) {
211 llvm::LLVMRustSetModulePIELevel(llmod);
217 impl<'a, 'tcx> CodegenCx<'a, 'tcx> {
218 crate fn new(tcx: TyCtxt<'a, 'tcx, 'tcx>,
219 codegen_unit: Arc<CodegenUnit<'tcx>>,
220 llvm_module: &'a ::ModuleLlvm)
221 -> CodegenCx<'a, 'tcx> {
222 // An interesting part of Windows which MSVC forces our hand on (and
223 // apparently MinGW didn't) is the usage of `dllimport` and `dllexport`
224 // attributes in LLVM IR as well as native dependencies (in C these
225 // correspond to `__declspec(dllimport)`).
227 // Whenever a dynamic library is built by MSVC it must have its public
228 // interface specified by functions tagged with `dllexport` or otherwise
229 // they're not available to be linked against. This poses a few problems
230 // for the compiler, some of which are somewhat fundamental, but we use
231 // the `use_dll_storage_attrs` variable below to attach the `dllexport`
232 // attribute to all LLVM functions that are exported e.g. they're
233 // already tagged with external linkage). This is suboptimal for a few
236 // * If an object file will never be included in a dynamic library,
237 // there's no need to attach the dllexport attribute. Most object
238 // files in Rust are not destined to become part of a dll as binaries
239 // are statically linked by default.
240 // * If the compiler is emitting both an rlib and a dylib, the same
241 // source object file is currently used but with MSVC this may be less
242 // feasible. The compiler may be able to get around this, but it may
243 // involve some invasive changes to deal with this.
245 // The flipside of this situation is that whenever you link to a dll and
246 // you import a function from it, the import should be tagged with
247 // `dllimport`. At this time, however, the compiler does not emit
248 // `dllimport` for any declarations other than constants (where it is
249 // required), which is again suboptimal for even more reasons!
251 // * Calling a function imported from another dll without using
252 // `dllimport` causes the linker/compiler to have extra overhead (one
253 // `jmp` instruction on x86) when calling the function.
254 // * The same object file may be used in different circumstances, so a
255 // function may be imported from a dll if the object is linked into a
256 // dll, but it may be just linked against if linked into an rlib.
257 // * The compiler has no knowledge about whether native functions should
258 // be tagged dllimport or not.
260 // For now the compiler takes the perf hit (I do not have any numbers to
261 // this effect) by marking very little as `dllimport` and praying the
262 // linker will take care of everything. Fixing this problem will likely
263 // require adding a few attributes to Rust itself (feature gated at the
264 // start) and then strongly recommending static linkage on MSVC!
265 let use_dll_storage_attrs = tcx.sess.target.target.options.is_like_msvc;
267 let check_overflow = tcx.sess.overflow_checks();
269 let tls_model = get_tls_model(&tcx.sess);
271 let (llcx, llmod) = (&*llvm_module.llcx, llvm_module.llmod());
273 let dbg_cx = if tcx.sess.opts.debuginfo != DebugInfo::None {
274 let dctx = debuginfo::CrateDebugContext::new(llmod);
275 debuginfo::metadata::compile_unit_metadata(tcx,
276 &codegen_unit.name().as_str(),
283 let isize_ty = Type::ix_llcx(llcx, tcx.data_layout.pointer_size.bits());
288 use_dll_storage_attrs,
292 stats: RefCell::new(Stats::default()),
294 instances: RefCell::new(FxHashMap()),
295 vtables: RefCell::new(FxHashMap()),
296 const_cstr_cache: RefCell::new(FxHashMap()),
297 const_unsized: RefCell::new(FxHashMap()),
298 const_globals: RefCell::new(FxHashMap()),
299 statics: RefCell::new(FxHashMap()),
300 statics_to_rauw: RefCell::new(Vec::new()),
301 used_statics: RefCell::new(Vec::new()),
302 lltypes: RefCell::new(FxHashMap()),
303 scalar_lltypes: RefCell::new(FxHashMap()),
304 pointee_infos: RefCell::new(FxHashMap()),
307 eh_personality: Cell::new(None),
308 eh_unwind_resume: Cell::new(None),
309 rust_try_fn: Cell::new(None),
310 intrinsics: RefCell::new(FxHashMap()),
311 local_gen_sym_counter: Cell::new(0),
316 impl<'b, 'tcx> CodegenCx<'b, 'tcx> {
317 pub fn sess<'a>(&'a self) -> &'a Session {
321 pub fn get_intrinsic(&self, key: &str) -> &'b Value {
322 if let Some(v) = self.intrinsics.borrow().get(key).cloned() {
325 match declare_intrinsic(self, key) {
327 None => bug!("unknown intrinsic '{}'", key)
331 /// Generate a new symbol name with the given prefix. This symbol name must
332 /// only be used for definitions with `internal` or `private` linkage.
333 pub fn generate_local_symbol_name(&self, prefix: &str) -> String {
334 let idx = self.local_gen_sym_counter.get();
335 self.local_gen_sym_counter.set(idx + 1);
336 // Include a '.' character, so there can be no accidental conflicts with
337 // user defined names
338 let mut name = String::with_capacity(prefix.len() + 6);
339 name.push_str(prefix);
341 base_n::push_str(idx as u128, base_n::ALPHANUMERIC_ONLY, &mut name);
345 pub fn eh_personality(&self) -> &'b Value {
346 // The exception handling personality function.
348 // If our compilation unit has the `eh_personality` lang item somewhere
349 // within it, then we just need to codegen that. Otherwise, we're
350 // building an rlib which will depend on some upstream implementation of
351 // this function, so we just codegen a generic reference to it. We don't
352 // specify any of the types for the function, we just make it a symbol
353 // that LLVM can later use.
355 // Note that MSVC is a little special here in that we don't use the
356 // `eh_personality` lang item at all. Currently LLVM has support for
357 // both Dwarf and SEH unwind mechanisms for MSVC targets and uses the
358 // *name of the personality function* to decide what kind of unwind side
359 // tables/landing pads to emit. It looks like Dwarf is used by default,
360 // injecting a dependency on the `_Unwind_Resume` symbol for resuming
361 // an "exception", but for MSVC we want to force SEH. This means that we
362 // can't actually have the personality function be our standard
363 // `rust_eh_personality` function, but rather we wired it up to the
364 // CRT's custom personality function, which forces LLVM to consider
365 // landing pads as "landing pads for SEH".
366 if let Some(llpersonality) = self.eh_personality.get() {
370 let llfn = match tcx.lang_items().eh_personality() {
371 Some(def_id) if !base::wants_msvc_seh(self.sess()) => {
372 callee::resolve_and_get_fn(self, def_id, tcx.intern_substs(&[]))
375 let name = if base::wants_msvc_seh(self.sess()) {
378 "rust_eh_personality"
380 let fty = Type::variadic_func(&[], Type::i32(self));
381 declare::declare_cfn(self, name, fty)
384 self.eh_personality.set(Some(llfn));
388 // Returns a Value of the "eh_unwind_resume" lang item if one is defined,
389 // otherwise declares it as an external function.
390 pub fn eh_unwind_resume(&self) -> &'b Value {
392 let unwresume = &self.eh_unwind_resume;
393 if let Some(llfn) = unwresume.get() {
398 assert!(self.sess().target.target.options.custom_unwind_resume);
399 if let Some(def_id) = tcx.lang_items().eh_unwind_resume() {
400 let llfn = callee::resolve_and_get_fn(self, def_id, tcx.intern_substs(&[]));
401 unwresume.set(Some(llfn));
405 let ty = tcx.mk_fn_ptr(ty::Binder::bind(tcx.mk_fn_sig(
406 iter::once(tcx.mk_mut_ptr(tcx.types.u8)),
409 hir::Unsafety::Unsafe,
413 let llfn = declare::declare_fn(self, "rust_eh_unwind_resume", ty);
414 attributes::unwind(llfn, true);
415 unwresume.set(Some(llfn));
419 pub fn type_needs_drop(&self, ty: Ty<'tcx>) -> bool {
420 common::type_needs_drop(self.tcx, ty)
423 pub fn type_is_sized(&self, ty: Ty<'tcx>) -> bool {
424 common::type_is_sized(self.tcx, ty)
427 pub fn type_is_freeze(&self, ty: Ty<'tcx>) -> bool {
428 common::type_is_freeze(self.tcx, ty)
431 pub fn type_has_metadata(&self, ty: Ty<'tcx>) -> bool {
432 use syntax_pos::DUMMY_SP;
433 if ty.is_sized(self.tcx.at(DUMMY_SP), ty::ParamEnv::reveal_all()) {
437 let tail = self.tcx.struct_tail(ty);
439 ty::TyForeign(..) => false,
440 ty::TyStr | ty::TySlice(..) | ty::TyDynamic(..) => true,
441 _ => bug!("unexpected unsized tail: {:?}", tail.sty),
446 impl ty::layout::HasDataLayout for &'a CodegenCx<'ll, 'tcx> {
447 fn data_layout(&self) -> &ty::layout::TargetDataLayout {
448 &self.tcx.data_layout
452 impl HasTargetSpec for &'a CodegenCx<'ll, 'tcx> {
453 fn target_spec(&self) -> &Target {
454 &self.tcx.sess.target.target
458 impl ty::layout::HasTyCtxt<'tcx> for &'a CodegenCx<'ll, 'tcx> {
459 fn tcx<'b>(&'b self) -> TyCtxt<'b, 'tcx, 'tcx> {
464 impl LayoutOf for &'a CodegenCx<'ll, 'tcx> {
466 type TyLayout = TyLayout<'tcx>;
468 fn layout_of(self, ty: Ty<'tcx>) -> Self::TyLayout {
469 self.tcx.layout_of(ty::ParamEnv::reveal_all().and(ty))
470 .unwrap_or_else(|e| match e {
471 LayoutError::SizeOverflow(_) => self.sess().fatal(&e.to_string()),
472 _ => bug!("failed to get layout for `{}`: {}", ty, e)
477 /// Declare any llvm intrinsics that you might need
478 fn declare_intrinsic(cx: &CodegenCx<'ll, '_>, key: &str) -> Option<&'ll Value> {
480 ($name:expr, fn() -> $ret:expr) => (
482 let f = declare::declare_cfn(cx, $name, Type::func(&[], $ret));
483 llvm::SetUnnamedAddr(f, false);
484 cx.intrinsics.borrow_mut().insert($name, f.clone());
488 ($name:expr, fn(...) -> $ret:expr) => (
490 let f = declare::declare_cfn(cx, $name, Type::variadic_func(&[], $ret));
491 llvm::SetUnnamedAddr(f, false);
492 cx.intrinsics.borrow_mut().insert($name, f.clone());
496 ($name:expr, fn($($arg:expr),*) -> $ret:expr) => (
498 let f = declare::declare_cfn(cx, $name, Type::func(&[$($arg),*], $ret));
499 llvm::SetUnnamedAddr(f, false);
500 cx.intrinsics.borrow_mut().insert($name, f.clone());
505 macro_rules! mk_struct {
506 ($($field_ty:expr),*) => (Type::struct_(cx, &[$($field_ty),*], false))
509 let i8p = Type::i8p(cx);
510 let void = Type::void(cx);
511 let i1 = Type::i1(cx);
512 let t_i8 = Type::i8(cx);
513 let t_i16 = Type::i16(cx);
514 let t_i32 = Type::i32(cx);
515 let t_i64 = Type::i64(cx);
516 let t_i128 = Type::i128(cx);
517 let t_f32 = Type::f32(cx);
518 let t_f64 = Type::f64(cx);
520 let t_v2f32 = Type::vector(t_f32, 2);
521 let t_v4f32 = Type::vector(t_f32, 4);
522 let t_v8f32 = Type::vector(t_f32, 8);
523 let t_v16f32 = Type::vector(t_f32, 16);
525 let t_v2f64 = Type::vector(t_f64, 2);
526 let t_v4f64 = Type::vector(t_f64, 4);
527 let t_v8f64 = Type::vector(t_f64, 8);
529 ifn!("llvm.memcpy.p0i8.p0i8.i16", fn(i8p, i8p, t_i16, t_i32, i1) -> void);
530 ifn!("llvm.memcpy.p0i8.p0i8.i32", fn(i8p, i8p, t_i32, t_i32, i1) -> void);
531 ifn!("llvm.memcpy.p0i8.p0i8.i64", fn(i8p, i8p, t_i64, t_i32, i1) -> void);
532 ifn!("llvm.memmove.p0i8.p0i8.i16", fn(i8p, i8p, t_i16, t_i32, i1) -> void);
533 ifn!("llvm.memmove.p0i8.p0i8.i32", fn(i8p, i8p, t_i32, t_i32, i1) -> void);
534 ifn!("llvm.memmove.p0i8.p0i8.i64", fn(i8p, i8p, t_i64, t_i32, i1) -> void);
535 ifn!("llvm.memset.p0i8.i16", fn(i8p, t_i8, t_i16, t_i32, i1) -> void);
536 ifn!("llvm.memset.p0i8.i32", fn(i8p, t_i8, t_i32, t_i32, i1) -> void);
537 ifn!("llvm.memset.p0i8.i64", fn(i8p, t_i8, t_i64, t_i32, i1) -> void);
539 ifn!("llvm.trap", fn() -> void);
540 ifn!("llvm.debugtrap", fn() -> void);
541 ifn!("llvm.frameaddress", fn(t_i32) -> i8p);
543 ifn!("llvm.powi.f32", fn(t_f32, t_i32) -> t_f32);
544 ifn!("llvm.powi.v2f32", fn(t_v2f32, t_i32) -> t_v2f32);
545 ifn!("llvm.powi.v4f32", fn(t_v4f32, t_i32) -> t_v4f32);
546 ifn!("llvm.powi.v8f32", fn(t_v8f32, t_i32) -> t_v8f32);
547 ifn!("llvm.powi.v16f32", fn(t_v16f32, t_i32) -> t_v16f32);
548 ifn!("llvm.powi.f64", fn(t_f64, t_i32) -> t_f64);
549 ifn!("llvm.powi.v2f64", fn(t_v2f64, t_i32) -> t_v2f64);
550 ifn!("llvm.powi.v4f64", fn(t_v4f64, t_i32) -> t_v4f64);
551 ifn!("llvm.powi.v8f64", fn(t_v8f64, t_i32) -> t_v8f64);
553 ifn!("llvm.pow.f32", fn(t_f32, t_f32) -> t_f32);
554 ifn!("llvm.pow.v2f32", fn(t_v2f32, t_v2f32) -> t_v2f32);
555 ifn!("llvm.pow.v4f32", fn(t_v4f32, t_v4f32) -> t_v4f32);
556 ifn!("llvm.pow.v8f32", fn(t_v8f32, t_v8f32) -> t_v8f32);
557 ifn!("llvm.pow.v16f32", fn(t_v16f32, t_v16f32) -> t_v16f32);
558 ifn!("llvm.pow.f64", fn(t_f64, t_f64) -> t_f64);
559 ifn!("llvm.pow.v2f64", fn(t_v2f64, t_v2f64) -> t_v2f64);
560 ifn!("llvm.pow.v4f64", fn(t_v4f64, t_v4f64) -> t_v4f64);
561 ifn!("llvm.pow.v8f64", fn(t_v8f64, t_v8f64) -> t_v8f64);
563 ifn!("llvm.sqrt.f32", fn(t_f32) -> t_f32);
564 ifn!("llvm.sqrt.v2f32", fn(t_v2f32) -> t_v2f32);
565 ifn!("llvm.sqrt.v4f32", fn(t_v4f32) -> t_v4f32);
566 ifn!("llvm.sqrt.v8f32", fn(t_v8f32) -> t_v8f32);
567 ifn!("llvm.sqrt.v16f32", fn(t_v16f32) -> t_v16f32);
568 ifn!("llvm.sqrt.f64", fn(t_f64) -> t_f64);
569 ifn!("llvm.sqrt.v2f64", fn(t_v2f64) -> t_v2f64);
570 ifn!("llvm.sqrt.v4f64", fn(t_v4f64) -> t_v4f64);
571 ifn!("llvm.sqrt.v8f64", fn(t_v8f64) -> t_v8f64);
573 ifn!("llvm.sin.f32", fn(t_f32) -> t_f32);
574 ifn!("llvm.sin.v2f32", fn(t_v2f32) -> t_v2f32);
575 ifn!("llvm.sin.v4f32", fn(t_v4f32) -> t_v4f32);
576 ifn!("llvm.sin.v8f32", fn(t_v8f32) -> t_v8f32);
577 ifn!("llvm.sin.v16f32", fn(t_v16f32) -> t_v16f32);
578 ifn!("llvm.sin.f64", fn(t_f64) -> t_f64);
579 ifn!("llvm.sin.v2f64", fn(t_v2f64) -> t_v2f64);
580 ifn!("llvm.sin.v4f64", fn(t_v4f64) -> t_v4f64);
581 ifn!("llvm.sin.v8f64", fn(t_v8f64) -> t_v8f64);
583 ifn!("llvm.cos.f32", fn(t_f32) -> t_f32);
584 ifn!("llvm.cos.v2f32", fn(t_v2f32) -> t_v2f32);
585 ifn!("llvm.cos.v4f32", fn(t_v4f32) -> t_v4f32);
586 ifn!("llvm.cos.v8f32", fn(t_v8f32) -> t_v8f32);
587 ifn!("llvm.cos.v16f32", fn(t_v16f32) -> t_v16f32);
588 ifn!("llvm.cos.f64", fn(t_f64) -> t_f64);
589 ifn!("llvm.cos.v2f64", fn(t_v2f64) -> t_v2f64);
590 ifn!("llvm.cos.v4f64", fn(t_v4f64) -> t_v4f64);
591 ifn!("llvm.cos.v8f64", fn(t_v8f64) -> t_v8f64);
593 ifn!("llvm.exp.f32", fn(t_f32) -> t_f32);
594 ifn!("llvm.exp.v2f32", fn(t_v2f32) -> t_v2f32);
595 ifn!("llvm.exp.v4f32", fn(t_v4f32) -> t_v4f32);
596 ifn!("llvm.exp.v8f32", fn(t_v8f32) -> t_v8f32);
597 ifn!("llvm.exp.v16f32", fn(t_v16f32) -> t_v16f32);
598 ifn!("llvm.exp.f64", fn(t_f64) -> t_f64);
599 ifn!("llvm.exp.v2f64", fn(t_v2f64) -> t_v2f64);
600 ifn!("llvm.exp.v4f64", fn(t_v4f64) -> t_v4f64);
601 ifn!("llvm.exp.v8f64", fn(t_v8f64) -> t_v8f64);
603 ifn!("llvm.exp2.f32", fn(t_f32) -> t_f32);
604 ifn!("llvm.exp2.v2f32", fn(t_v2f32) -> t_v2f32);
605 ifn!("llvm.exp2.v4f32", fn(t_v4f32) -> t_v4f32);
606 ifn!("llvm.exp2.v8f32", fn(t_v8f32) -> t_v8f32);
607 ifn!("llvm.exp2.v16f32", fn(t_v16f32) -> t_v16f32);
608 ifn!("llvm.exp2.f64", fn(t_f64) -> t_f64);
609 ifn!("llvm.exp2.v2f64", fn(t_v2f64) -> t_v2f64);
610 ifn!("llvm.exp2.v4f64", fn(t_v4f64) -> t_v4f64);
611 ifn!("llvm.exp2.v8f64", fn(t_v8f64) -> t_v8f64);
613 ifn!("llvm.log.f32", fn(t_f32) -> t_f32);
614 ifn!("llvm.log.v2f32", fn(t_v2f32) -> t_v2f32);
615 ifn!("llvm.log.v4f32", fn(t_v4f32) -> t_v4f32);
616 ifn!("llvm.log.v8f32", fn(t_v8f32) -> t_v8f32);
617 ifn!("llvm.log.v16f32", fn(t_v16f32) -> t_v16f32);
618 ifn!("llvm.log.f64", fn(t_f64) -> t_f64);
619 ifn!("llvm.log.v2f64", fn(t_v2f64) -> t_v2f64);
620 ifn!("llvm.log.v4f64", fn(t_v4f64) -> t_v4f64);
621 ifn!("llvm.log.v8f64", fn(t_v8f64) -> t_v8f64);
623 ifn!("llvm.log10.f32", fn(t_f32) -> t_f32);
624 ifn!("llvm.log10.v2f32", fn(t_v2f32) -> t_v2f32);
625 ifn!("llvm.log10.v4f32", fn(t_v4f32) -> t_v4f32);
626 ifn!("llvm.log10.v8f32", fn(t_v8f32) -> t_v8f32);
627 ifn!("llvm.log10.v16f32", fn(t_v16f32) -> t_v16f32);
628 ifn!("llvm.log10.f64", fn(t_f64) -> t_f64);
629 ifn!("llvm.log10.v2f64", fn(t_v2f64) -> t_v2f64);
630 ifn!("llvm.log10.v4f64", fn(t_v4f64) -> t_v4f64);
631 ifn!("llvm.log10.v8f64", fn(t_v8f64) -> t_v8f64);
633 ifn!("llvm.log2.f32", fn(t_f32) -> t_f32);
634 ifn!("llvm.log2.v2f32", fn(t_v2f32) -> t_v2f32);
635 ifn!("llvm.log2.v4f32", fn(t_v4f32) -> t_v4f32);
636 ifn!("llvm.log2.v8f32", fn(t_v8f32) -> t_v8f32);
637 ifn!("llvm.log2.v16f32", fn(t_v16f32) -> t_v16f32);
638 ifn!("llvm.log2.f64", fn(t_f64) -> t_f64);
639 ifn!("llvm.log2.v2f64", fn(t_v2f64) -> t_v2f64);
640 ifn!("llvm.log2.v4f64", fn(t_v4f64) -> t_v4f64);
641 ifn!("llvm.log2.v8f64", fn(t_v8f64) -> t_v8f64);
643 ifn!("llvm.fma.f32", fn(t_f32, t_f32, t_f32) -> t_f32);
644 ifn!("llvm.fma.v2f32", fn(t_v2f32, t_v2f32, t_v2f32) -> t_v2f32);
645 ifn!("llvm.fma.v4f32", fn(t_v4f32, t_v4f32, t_v4f32) -> t_v4f32);
646 ifn!("llvm.fma.v8f32", fn(t_v8f32, t_v8f32, t_v8f32) -> t_v8f32);
647 ifn!("llvm.fma.v16f32", fn(t_v16f32, t_v16f32, t_v16f32) -> t_v16f32);
648 ifn!("llvm.fma.f64", fn(t_f64, t_f64, t_f64) -> t_f64);
649 ifn!("llvm.fma.v2f64", fn(t_v2f64, t_v2f64, t_v2f64) -> t_v2f64);
650 ifn!("llvm.fma.v4f64", fn(t_v4f64, t_v4f64, t_v4f64) -> t_v4f64);
651 ifn!("llvm.fma.v8f64", fn(t_v8f64, t_v8f64, t_v8f64) -> t_v8f64);
653 ifn!("llvm.fabs.f32", fn(t_f32) -> t_f32);
654 ifn!("llvm.fabs.v2f32", fn(t_v2f32) -> t_v2f32);
655 ifn!("llvm.fabs.v4f32", fn(t_v4f32) -> t_v4f32);
656 ifn!("llvm.fabs.v8f32", fn(t_v8f32) -> t_v8f32);
657 ifn!("llvm.fabs.v16f32", fn(t_v16f32) -> t_v16f32);
658 ifn!("llvm.fabs.f64", fn(t_f64) -> t_f64);
659 ifn!("llvm.fabs.v2f64", fn(t_v2f64) -> t_v2f64);
660 ifn!("llvm.fabs.v4f64", fn(t_v4f64) -> t_v4f64);
661 ifn!("llvm.fabs.v8f64", fn(t_v8f64) -> t_v8f64);
663 ifn!("llvm.floor.f32", fn(t_f32) -> t_f32);
664 ifn!("llvm.floor.v2f32", fn(t_v2f32) -> t_v2f32);
665 ifn!("llvm.floor.v4f32", fn(t_v4f32) -> t_v4f32);
666 ifn!("llvm.floor.v8f32", fn(t_v8f32) -> t_v8f32);
667 ifn!("llvm.floor.v16f32", fn(t_v16f32) -> t_v16f32);
668 ifn!("llvm.floor.f64", fn(t_f64) -> t_f64);
669 ifn!("llvm.floor.v2f64", fn(t_v2f64) -> t_v2f64);
670 ifn!("llvm.floor.v4f64", fn(t_v4f64) -> t_v4f64);
671 ifn!("llvm.floor.v8f64", fn(t_v8f64) -> t_v8f64);
673 ifn!("llvm.ceil.f32", fn(t_f32) -> t_f32);
674 ifn!("llvm.ceil.v2f32", fn(t_v2f32) -> t_v2f32);
675 ifn!("llvm.ceil.v4f32", fn(t_v4f32) -> t_v4f32);
676 ifn!("llvm.ceil.v8f32", fn(t_v8f32) -> t_v8f32);
677 ifn!("llvm.ceil.v16f32", fn(t_v16f32) -> t_v16f32);
678 ifn!("llvm.ceil.f64", fn(t_f64) -> t_f64);
679 ifn!("llvm.ceil.v2f64", fn(t_v2f64) -> t_v2f64);
680 ifn!("llvm.ceil.v4f64", fn(t_v4f64) -> t_v4f64);
681 ifn!("llvm.ceil.v8f64", fn(t_v8f64) -> t_v8f64);
683 ifn!("llvm.trunc.f32", fn(t_f32) -> t_f32);
684 ifn!("llvm.trunc.f64", fn(t_f64) -> t_f64);
686 ifn!("llvm.copysign.f32", fn(t_f32, t_f32) -> t_f32);
687 ifn!("llvm.copysign.f64", fn(t_f64, t_f64) -> t_f64);
688 ifn!("llvm.round.f32", fn(t_f32) -> t_f32);
689 ifn!("llvm.round.f64", fn(t_f64) -> t_f64);
691 ifn!("llvm.rint.f32", fn(t_f32) -> t_f32);
692 ifn!("llvm.rint.f64", fn(t_f64) -> t_f64);
693 ifn!("llvm.nearbyint.f32", fn(t_f32) -> t_f32);
694 ifn!("llvm.nearbyint.f64", fn(t_f64) -> t_f64);
696 ifn!("llvm.ctpop.i8", fn(t_i8) -> t_i8);
697 ifn!("llvm.ctpop.i16", fn(t_i16) -> t_i16);
698 ifn!("llvm.ctpop.i32", fn(t_i32) -> t_i32);
699 ifn!("llvm.ctpop.i64", fn(t_i64) -> t_i64);
700 ifn!("llvm.ctpop.i128", fn(t_i128) -> t_i128);
702 ifn!("llvm.ctlz.i8", fn(t_i8 , i1) -> t_i8);
703 ifn!("llvm.ctlz.i16", fn(t_i16, i1) -> t_i16);
704 ifn!("llvm.ctlz.i32", fn(t_i32, i1) -> t_i32);
705 ifn!("llvm.ctlz.i64", fn(t_i64, i1) -> t_i64);
706 ifn!("llvm.ctlz.i128", fn(t_i128, i1) -> t_i128);
708 ifn!("llvm.cttz.i8", fn(t_i8 , i1) -> t_i8);
709 ifn!("llvm.cttz.i16", fn(t_i16, i1) -> t_i16);
710 ifn!("llvm.cttz.i32", fn(t_i32, i1) -> t_i32);
711 ifn!("llvm.cttz.i64", fn(t_i64, i1) -> t_i64);
712 ifn!("llvm.cttz.i128", fn(t_i128, i1) -> t_i128);
714 ifn!("llvm.bswap.i16", fn(t_i16) -> t_i16);
715 ifn!("llvm.bswap.i32", fn(t_i32) -> t_i32);
716 ifn!("llvm.bswap.i64", fn(t_i64) -> t_i64);
717 ifn!("llvm.bswap.i128", fn(t_i128) -> t_i128);
719 ifn!("llvm.bitreverse.i8", fn(t_i8) -> t_i8);
720 ifn!("llvm.bitreverse.i16", fn(t_i16) -> t_i16);
721 ifn!("llvm.bitreverse.i32", fn(t_i32) -> t_i32);
722 ifn!("llvm.bitreverse.i64", fn(t_i64) -> t_i64);
723 ifn!("llvm.bitreverse.i128", fn(t_i128) -> t_i128);
725 ifn!("llvm.sadd.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
726 ifn!("llvm.sadd.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
727 ifn!("llvm.sadd.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
728 ifn!("llvm.sadd.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
729 ifn!("llvm.sadd.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
731 ifn!("llvm.uadd.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
732 ifn!("llvm.uadd.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
733 ifn!("llvm.uadd.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
734 ifn!("llvm.uadd.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
735 ifn!("llvm.uadd.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
737 ifn!("llvm.ssub.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
738 ifn!("llvm.ssub.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
739 ifn!("llvm.ssub.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
740 ifn!("llvm.ssub.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
741 ifn!("llvm.ssub.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
743 ifn!("llvm.usub.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
744 ifn!("llvm.usub.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
745 ifn!("llvm.usub.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
746 ifn!("llvm.usub.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
747 ifn!("llvm.usub.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
749 ifn!("llvm.smul.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
750 ifn!("llvm.smul.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
751 ifn!("llvm.smul.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
752 ifn!("llvm.smul.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
753 ifn!("llvm.smul.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
755 ifn!("llvm.umul.with.overflow.i8", fn(t_i8, t_i8) -> mk_struct!{t_i8, i1});
756 ifn!("llvm.umul.with.overflow.i16", fn(t_i16, t_i16) -> mk_struct!{t_i16, i1});
757 ifn!("llvm.umul.with.overflow.i32", fn(t_i32, t_i32) -> mk_struct!{t_i32, i1});
758 ifn!("llvm.umul.with.overflow.i64", fn(t_i64, t_i64) -> mk_struct!{t_i64, i1});
759 ifn!("llvm.umul.with.overflow.i128", fn(t_i128, t_i128) -> mk_struct!{t_i128, i1});
761 ifn!("llvm.lifetime.start", fn(t_i64,i8p) -> void);
762 ifn!("llvm.lifetime.end", fn(t_i64, i8p) -> void);
764 ifn!("llvm.expect.i1", fn(i1, i1) -> i1);
765 ifn!("llvm.eh.typeid.for", fn(i8p) -> t_i32);
766 ifn!("llvm.localescape", fn(...) -> void);
767 ifn!("llvm.localrecover", fn(i8p, i8p, t_i32) -> i8p);
768 ifn!("llvm.x86.seh.recoverfp", fn(i8p, i8p) -> i8p);
770 ifn!("llvm.assume", fn(i1) -> void);
771 ifn!("llvm.prefetch", fn(i8p, t_i32, t_i32, t_i32) -> void);
773 if cx.sess().opts.debuginfo != DebugInfo::None {
774 ifn!("llvm.dbg.declare", fn(Type::metadata(cx), Type::metadata(cx)) -> void);
775 ifn!("llvm.dbg.value", fn(Type::metadata(cx), t_i64, Type::metadata(cx)) -> void);