// Copyright 2013 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. use lib; use lib::llvm::llvm; use lib::llvm::{CallConv, AtomicBinOp, AtomicOrdering, AsmDialect}; use lib::llvm::{Opcode, IntPredicate, RealPredicate, False}; use lib::llvm::{ValueRef, BasicBlockRef, BuilderRef, ModuleRef}; use middle::trans::base; use middle::trans::common::*; use middle::trans::machine::llalign_of_min; use middle::trans::type_::Type; use std::cast; use std::hashmap::HashMap; use std::libc::{c_uint, c_ulonglong, c_char}; use std::vec; use syntax::codemap::Span; use std::ptr::is_not_null; pub struct Builder { llbuilder: BuilderRef, ccx: @mut CrateContext, } // This is a really awful way to get a zero-length c-string, but better (and a // lot more efficient) than doing str::as_c_str("", ...) every time. pub fn noname() -> *c_char { unsafe { static cnull: uint = 0u; cast::transmute(&cnull) } } impl Builder { pub fn new(ccx: @mut CrateContext) -> Builder { Builder { llbuilder: ccx.builder.B, ccx: ccx, } } pub fn count_insn(&self, category: &str) { if self.ccx.sess.trans_stats() { self.ccx.stats.n_llvm_insns += 1; } if self.ccx.sess.count_llvm_insns() { do base::with_insn_ctxt |v| { let h = &mut self.ccx.stats.llvm_insns; // Build version of path with cycles removed. // Pass 1: scan table mapping str -> rightmost pos. let mut mm = HashMap::new(); let len = v.len(); let mut i = 0u; while i < len { mm.insert(v[i], i); i += 1u; } // Pass 2: concat strings for each elt, skipping // forwards over any cycles by advancing to rightmost // occurrence of each element in path. let mut s = ~"."; i = 0u; while i < len { i = *mm.get(&v[i]); s.push_char('/'); s.push_str(v[i]); i += 1u; } s.push_char('/'); s.push_str(category); let n = match h.find(&s) { Some(&n) => n, _ => 0u }; h.insert(s, n+1u); } } } pub fn position_before(&self, insn: ValueRef) { unsafe { llvm::LLVMPositionBuilderBefore(self.llbuilder, insn); } } pub fn position_at_end(&self, llbb: BasicBlockRef) { unsafe { llvm::LLVMPositionBuilderAtEnd(self.llbuilder, llbb); } } pub fn ret_void(&self) { self.count_insn("retvoid"); unsafe { llvm::LLVMBuildRetVoid(self.llbuilder); } } pub fn ret(&self, v: ValueRef) { self.count_insn("ret"); unsafe { llvm::LLVMBuildRet(self.llbuilder, v); } } pub fn aggregate_ret(&self, ret_vals: &[ValueRef]) { unsafe { llvm::LLVMBuildAggregateRet(self.llbuilder, vec::raw::to_ptr(ret_vals), ret_vals.len() as c_uint); } } pub fn br(&self, dest: BasicBlockRef) { self.count_insn("br"); unsafe { llvm::LLVMBuildBr(self.llbuilder, dest); } } pub fn cond_br(&self, cond: ValueRef, then_llbb: BasicBlockRef, else_llbb: BasicBlockRef) { self.count_insn("condbr"); unsafe { llvm::LLVMBuildCondBr(self.llbuilder, cond, then_llbb, else_llbb); } } pub fn switch(&self, v: ValueRef, else_llbb: BasicBlockRef, num_cases: uint) -> ValueRef { unsafe { llvm::LLVMBuildSwitch(self.llbuilder, v, else_llbb, num_cases as c_uint) } } pub fn indirect_br(&self, addr: ValueRef, num_dests: uint) { self.count_insn("indirectbr"); unsafe { llvm::LLVMBuildIndirectBr(self.llbuilder, addr, num_dests as c_uint); } } pub fn invoke(&self, llfn: ValueRef, args: &[ValueRef], then: BasicBlockRef, catch: BasicBlockRef, attributes: &[(uint, lib::llvm::Attribute)]) -> ValueRef { self.count_insn("invoke"); unsafe { let v = llvm::LLVMBuildInvoke(self.llbuilder, llfn, vec::raw::to_ptr(args), args.len() as c_uint, then, catch, noname()); for &(idx, attr) in attributes.iter() { llvm::LLVMAddInstrAttribute(v, idx as c_uint, attr as c_uint); } v } } pub fn unreachable(&self) { self.count_insn("unreachable"); unsafe { llvm::LLVMBuildUnreachable(self.llbuilder); } } /* Arithmetic */ pub fn add(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("add"); unsafe { llvm::LLVMBuildAdd(self.llbuilder, lhs, rhs, noname()) } } pub fn nswadd(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nswadd"); unsafe { llvm::LLVMBuildNSWAdd(self.llbuilder, lhs, rhs, noname()) } } pub fn nuwadd(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nuwadd"); unsafe { llvm::LLVMBuildNUWAdd(self.llbuilder, lhs, rhs, noname()) } } pub fn fadd(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("fadd"); unsafe { llvm::LLVMBuildFAdd(self.llbuilder, lhs, rhs, noname()) } } pub fn sub(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("sub"); unsafe { llvm::LLVMBuildSub(self.llbuilder, lhs, rhs, noname()) } } pub fn nswsub(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nwsub"); unsafe { llvm::LLVMBuildNSWSub(self.llbuilder, lhs, rhs, noname()) } } pub fn nuwsub(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nuwsub"); unsafe { llvm::LLVMBuildNUWSub(self.llbuilder, lhs, rhs, noname()) } } pub fn fsub(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("sub"); unsafe { llvm::LLVMBuildFSub(self.llbuilder, lhs, rhs, noname()) } } pub fn mul(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("mul"); unsafe { llvm::LLVMBuildMul(self.llbuilder, lhs, rhs, noname()) } } pub fn nswmul(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nswmul"); unsafe { llvm::LLVMBuildNSWMul(self.llbuilder, lhs, rhs, noname()) } } pub fn nuwmul(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("nuwmul"); unsafe { llvm::LLVMBuildNUWMul(self.llbuilder, lhs, rhs, noname()) } } pub fn fmul(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("fmul"); unsafe { llvm::LLVMBuildFMul(self.llbuilder, lhs, rhs, noname()) } } pub fn udiv(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("udiv"); unsafe { llvm::LLVMBuildUDiv(self.llbuilder, lhs, rhs, noname()) } } pub fn sdiv(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("sdiv"); unsafe { llvm::LLVMBuildSDiv(self.llbuilder, lhs, rhs, noname()) } } pub fn exactsdiv(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("exactsdiv"); unsafe { llvm::LLVMBuildExactSDiv(self.llbuilder, lhs, rhs, noname()) } } pub fn fdiv(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("fdiv"); unsafe { llvm::LLVMBuildFDiv(self.llbuilder, lhs, rhs, noname()) } } pub fn urem(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("urem"); unsafe { llvm::LLVMBuildURem(self.llbuilder, lhs, rhs, noname()) } } pub fn srem(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("srem"); unsafe { llvm::LLVMBuildSRem(self.llbuilder, lhs, rhs, noname()) } } pub fn frem(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("frem"); unsafe { llvm::LLVMBuildFRem(self.llbuilder, lhs, rhs, noname()) } } pub fn shl(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("shl"); unsafe { llvm::LLVMBuildShl(self.llbuilder, lhs, rhs, noname()) } } pub fn lshr(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("lshr"); unsafe { llvm::LLVMBuildLShr(self.llbuilder, lhs, rhs, noname()) } } pub fn ashr(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("ashr"); unsafe { llvm::LLVMBuildAShr(self.llbuilder, lhs, rhs, noname()) } } pub fn and(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("and"); unsafe { llvm::LLVMBuildAnd(self.llbuilder, lhs, rhs, noname()) } } pub fn or(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("or"); unsafe { llvm::LLVMBuildOr(self.llbuilder, lhs, rhs, noname()) } } pub fn xor(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("xor"); unsafe { llvm::LLVMBuildXor(self.llbuilder, lhs, rhs, noname()) } } pub fn binop(&self, op: Opcode, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("binop"); unsafe { llvm::LLVMBuildBinOp(self.llbuilder, op, lhs, rhs, noname()) } } pub fn neg(&self, V: ValueRef) -> ValueRef { self.count_insn("neg"); unsafe { llvm::LLVMBuildNeg(self.llbuilder, V, noname()) } } pub fn nswneg(&self, V: ValueRef) -> ValueRef { self.count_insn("nswneg"); unsafe { llvm::LLVMBuildNSWNeg(self.llbuilder, V, noname()) } } pub fn nuwneg(&self, V: ValueRef) -> ValueRef { self.count_insn("nuwneg"); unsafe { llvm::LLVMBuildNUWNeg(self.llbuilder, V, noname()) } } pub fn fneg(&self, V: ValueRef) -> ValueRef { self.count_insn("fneg"); unsafe { llvm::LLVMBuildFNeg(self.llbuilder, V, noname()) } } pub fn not(&self, V: ValueRef) -> ValueRef { self.count_insn("not"); unsafe { llvm::LLVMBuildNot(self.llbuilder, V, noname()) } } /* Memory */ pub fn malloc(&self, ty: Type) -> ValueRef { self.count_insn("malloc"); unsafe { llvm::LLVMBuildMalloc(self.llbuilder, ty.to_ref(), noname()) } } pub fn array_malloc(&self, ty: Type, val: ValueRef) -> ValueRef { self.count_insn("arraymalloc"); unsafe { llvm::LLVMBuildArrayMalloc(self.llbuilder, ty.to_ref(), val, noname()) } } pub fn alloca(&self, ty: Type, name: &str) -> ValueRef { self.count_insn("alloca"); unsafe { if name.is_empty() { llvm::LLVMBuildAlloca(self.llbuilder, ty.to_ref(), noname()) } else { do name.with_c_str |c| { llvm::LLVMBuildAlloca(self.llbuilder, ty.to_ref(), c) } } } } pub fn array_alloca(&self, ty: Type, val: ValueRef) -> ValueRef { self.count_insn("arrayalloca"); unsafe { llvm::LLVMBuildArrayAlloca(self.llbuilder, ty.to_ref(), val, noname()) } } pub fn free(&self, ptr: ValueRef) { self.count_insn("free"); unsafe { llvm::LLVMBuildFree(self.llbuilder, ptr); } } pub fn load(&self, ptr: ValueRef) -> ValueRef { self.count_insn("load"); unsafe { llvm::LLVMBuildLoad(self.llbuilder, ptr, noname()) } } pub fn atomic_load(&self, ptr: ValueRef, order: AtomicOrdering) -> ValueRef { self.count_insn("load.atomic"); unsafe { let align = llalign_of_min(self.ccx, self.ccx.int_type); llvm::LLVMBuildAtomicLoad(self.llbuilder, ptr, noname(), order, align as c_uint) } } pub fn load_range_assert(&self, ptr: ValueRef, lo: c_ulonglong, hi: c_ulonglong, signed: lib::llvm::Bool) -> ValueRef { let value = self.load(ptr); unsafe { let t = llvm::LLVMGetElementType(llvm::LLVMTypeOf(ptr)); let min = llvm::LLVMConstInt(t, lo, signed); let max = llvm::LLVMConstInt(t, hi, signed); do [min, max].as_imm_buf |ptr, len| { llvm::LLVMSetMetadata(value, lib::llvm::MD_range as c_uint, llvm::LLVMMDNodeInContext(self.ccx.llcx, ptr, len as c_uint)); } } value } pub fn store(&self, val: ValueRef, ptr: ValueRef) { debug2!("Store {} -> {}", self.ccx.tn.val_to_str(val), self.ccx.tn.val_to_str(ptr)); assert!(is_not_null(self.llbuilder)); self.count_insn("store"); unsafe { llvm::LLVMBuildStore(self.llbuilder, val, ptr); } } pub fn atomic_store(&self, val: ValueRef, ptr: ValueRef, order: AtomicOrdering) { debug2!("Store {} -> {}", self.ccx.tn.val_to_str(val), self.ccx.tn.val_to_str(ptr)); self.count_insn("store.atomic"); let align = llalign_of_min(self.ccx, self.ccx.int_type); unsafe { llvm::LLVMBuildAtomicStore(self.llbuilder, val, ptr, order, align as c_uint); } } pub fn gep(&self, ptr: ValueRef, indices: &[ValueRef]) -> ValueRef { self.count_insn("gep"); unsafe { llvm::LLVMBuildGEP(self.llbuilder, ptr, vec::raw::to_ptr(indices), indices.len() as c_uint, noname()) } } // Simple wrapper around GEP that takes an array of ints and wraps them // in C_i32() #[inline] pub fn gepi(&self, base: ValueRef, ixs: &[uint]) -> ValueRef { // Small vector optimization. This should catch 100% of the cases that // we care about. if ixs.len() < 16 { let mut small_vec = [ C_i32(0), ..16 ]; for (small_vec_e, &ix) in small_vec.mut_iter().zip(ixs.iter()) { *small_vec_e = C_i32(ix as i32); } self.inbounds_gep(base, small_vec.slice(0, ixs.len())) } else { let v = do ixs.iter().map |i| { C_i32(*i as i32) }.collect::<~[ValueRef]>(); self.count_insn("gepi"); self.inbounds_gep(base, v) } } pub fn inbounds_gep(&self, ptr: ValueRef, indices: &[ValueRef]) -> ValueRef { self.count_insn("inboundsgep"); unsafe { llvm::LLVMBuildInBoundsGEP( self.llbuilder, ptr, vec::raw::to_ptr(indices), indices.len() as c_uint, noname()) } } pub fn struct_gep(&self, ptr: ValueRef, idx: uint) -> ValueRef { self.count_insn("structgep"); unsafe { llvm::LLVMBuildStructGEP(self.llbuilder, ptr, idx as c_uint, noname()) } } pub fn global_string(&self, _Str: *c_char) -> ValueRef { self.count_insn("globalstring"); unsafe { llvm::LLVMBuildGlobalString(self.llbuilder, _Str, noname()) } } pub fn global_string_ptr(&self, _Str: *c_char) -> ValueRef { self.count_insn("globalstringptr"); unsafe { llvm::LLVMBuildGlobalStringPtr(self.llbuilder, _Str, noname()) } } /* Casts */ pub fn trunc(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("trunc"); unsafe { llvm::LLVMBuildTrunc(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn zext(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("zext"); unsafe { llvm::LLVMBuildZExt(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn sext(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("sext"); unsafe { llvm::LLVMBuildSExt(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn fptoui(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("fptoui"); unsafe { llvm::LLVMBuildFPToUI(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn fptosi(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("fptosi"); unsafe { llvm::LLVMBuildFPToSI(self.llbuilder, val, dest_ty.to_ref(),noname()) } } pub fn uitofp(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("uitofp"); unsafe { llvm::LLVMBuildUIToFP(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn sitofp(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("sitofp"); unsafe { llvm::LLVMBuildSIToFP(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn fptrunc(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("fptrunc"); unsafe { llvm::LLVMBuildFPTrunc(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn fpext(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("fpext"); unsafe { llvm::LLVMBuildFPExt(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn ptrtoint(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("ptrtoint"); unsafe { llvm::LLVMBuildPtrToInt(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn inttoptr(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("inttoptr"); unsafe { llvm::LLVMBuildIntToPtr(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn bitcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("bitcast"); unsafe { llvm::LLVMBuildBitCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn zext_or_bitcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("zextorbitcast"); unsafe { llvm::LLVMBuildZExtOrBitCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn sext_or_bitcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("sextorbitcast"); unsafe { llvm::LLVMBuildSExtOrBitCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn trunc_or_bitcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("truncorbitcast"); unsafe { llvm::LLVMBuildTruncOrBitCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn cast(&self, op: Opcode, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("cast"); unsafe { llvm::LLVMBuildCast(self.llbuilder, op, val, dest_ty.to_ref(), noname()) } } pub fn pointercast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("pointercast"); unsafe { llvm::LLVMBuildPointerCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn intcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("intcast"); unsafe { llvm::LLVMBuildIntCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } pub fn fpcast(&self, val: ValueRef, dest_ty: Type) -> ValueRef { self.count_insn("fpcast"); unsafe { llvm::LLVMBuildFPCast(self.llbuilder, val, dest_ty.to_ref(), noname()) } } /* Comparisons */ pub fn icmp(&self, op: IntPredicate, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("icmp"); unsafe { llvm::LLVMBuildICmp(self.llbuilder, op as c_uint, lhs, rhs, noname()) } } pub fn fcmp(&self, op: RealPredicate, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("fcmp"); unsafe { llvm::LLVMBuildFCmp(self.llbuilder, op as c_uint, lhs, rhs, noname()) } } /* Miscellaneous instructions */ pub fn empty_phi(&self, ty: Type) -> ValueRef { self.count_insn("emptyphi"); unsafe { llvm::LLVMBuildPhi(self.llbuilder, ty.to_ref(), noname()) } } pub fn phi(&self, ty: Type, vals: &[ValueRef], bbs: &[BasicBlockRef]) -> ValueRef { assert_eq!(vals.len(), bbs.len()); let phi = self.empty_phi(ty); self.count_insn("addincoming"); unsafe { llvm::LLVMAddIncoming(phi, vec::raw::to_ptr(vals), vec::raw::to_ptr(bbs), vals.len() as c_uint); phi } } pub fn add_span_comment(&self, sp: Span, text: &str) { if self.ccx.sess.asm_comments() { let s = format!("{} ({})", text, self.ccx.sess.codemap.span_to_str(sp)); debug2!("{}", s); self.add_comment(s); } } pub fn add_comment(&self, text: &str) { if self.ccx.sess.asm_comments() { let sanitized = text.replace("$", ""); let comment_text = format!("\\# {}", sanitized.replace("\n", "\n\t# ")); self.count_insn("inlineasm"); let asm = do comment_text.with_c_str |c| { unsafe { llvm::LLVMConstInlineAsm(Type::func([], &Type::void()).to_ref(), c, noname(), False, False) } }; self.call(asm, [], []); } } pub fn inline_asm_call(&self, asm: *c_char, cons: *c_char, inputs: &[ValueRef], output: Type, volatile: bool, alignstack: bool, dia: AsmDialect) -> ValueRef { self.count_insn("inlineasm"); let volatile = if volatile { lib::llvm::True } else { lib::llvm::False }; let alignstack = if alignstack { lib::llvm::True } else { lib::llvm::False }; let argtys = do inputs.map |v| { debug2!("Asm Input Type: {:?}", self.ccx.tn.val_to_str(*v)); val_ty(*v) }; debug2!("Asm Output Type: {:?}", self.ccx.tn.type_to_str(output)); let fty = Type::func(argtys, &output); unsafe { let v = llvm::LLVMInlineAsm( fty.to_ref(), asm, cons, volatile, alignstack, dia as c_uint); self.call(v, inputs, []) } } pub fn call(&self, llfn: ValueRef, args: &[ValueRef], attributes: &[(uint, lib::llvm::Attribute)]) -> ValueRef { self.count_insn("call"); unsafe { let v = llvm::LLVMBuildCall(self.llbuilder, llfn, vec::raw::to_ptr(args), args.len() as c_uint, noname()); for &(idx, attr) in attributes.iter() { llvm::LLVMAddInstrAttribute(v, idx as c_uint, attr as c_uint); } v } } pub fn call_with_conv(&self, llfn: ValueRef, args: &[ValueRef], conv: CallConv, attributes: &[(uint, lib::llvm::Attribute)]) -> ValueRef { self.count_insn("callwithconv"); let v = self.call(llfn, args, attributes); lib::llvm::SetInstructionCallConv(v, conv); v } pub fn select(&self, cond: ValueRef, then_val: ValueRef, else_val: ValueRef) -> ValueRef { self.count_insn("select"); unsafe { llvm::LLVMBuildSelect(self.llbuilder, cond, then_val, else_val, noname()) } } pub fn va_arg(&self, list: ValueRef, ty: Type) -> ValueRef { self.count_insn("vaarg"); unsafe { llvm::LLVMBuildVAArg(self.llbuilder, list, ty.to_ref(), noname()) } } pub fn extract_element(&self, vec: ValueRef, idx: ValueRef) -> ValueRef { self.count_insn("extractelement"); unsafe { llvm::LLVMBuildExtractElement(self.llbuilder, vec, idx, noname()) } } pub fn insert_element(&self, vec: ValueRef, elt: ValueRef, idx: ValueRef) -> ValueRef { self.count_insn("insertelement"); unsafe { llvm::LLVMBuildInsertElement(self.llbuilder, vec, elt, idx, noname()) } } pub fn shuffle_vector(&self, v1: ValueRef, v2: ValueRef, mask: ValueRef) -> ValueRef { self.count_insn("shufflevector"); unsafe { llvm::LLVMBuildShuffleVector(self.llbuilder, v1, v2, mask, noname()) } } pub fn vector_splat(&self, num_elts: uint, elt: ValueRef) -> ValueRef { unsafe { let elt_ty = val_ty(elt); let Undef = llvm::LLVMGetUndef(Type::vector(&elt_ty, num_elts as u64).to_ref()); let vec = self.insert_element(Undef, elt, C_i32(0)); self.shuffle_vector(vec, Undef, C_null(Type::vector(&Type::i32(), num_elts as u64))) } } pub fn extract_value(&self, agg_val: ValueRef, idx: uint) -> ValueRef { self.count_insn("extractvalue"); unsafe { llvm::LLVMBuildExtractValue(self.llbuilder, agg_val, idx as c_uint, noname()) } } pub fn insert_value(&self, agg_val: ValueRef, elt: ValueRef, idx: uint) -> ValueRef { self.count_insn("insertvalue"); unsafe { llvm::LLVMBuildInsertValue(self.llbuilder, agg_val, elt, idx as c_uint, noname()) } } pub fn is_null(&self, val: ValueRef) -> ValueRef { self.count_insn("isnull"); unsafe { llvm::LLVMBuildIsNull(self.llbuilder, val, noname()) } } pub fn is_not_null(&self, val: ValueRef) -> ValueRef { self.count_insn("isnotnull"); unsafe { llvm::LLVMBuildIsNotNull(self.llbuilder, val, noname()) } } pub fn ptrdiff(&self, lhs: ValueRef, rhs: ValueRef) -> ValueRef { self.count_insn("ptrdiff"); unsafe { llvm::LLVMBuildPtrDiff(self.llbuilder, lhs, rhs, noname()) } } pub fn trap(&self) { unsafe { let BB: BasicBlockRef = llvm::LLVMGetInsertBlock(self.llbuilder); let FN: ValueRef = llvm::LLVMGetBasicBlockParent(BB); let M: ModuleRef = llvm::LLVMGetGlobalParent(FN); let T: ValueRef = do "llvm.trap".with_c_str |buf| { llvm::LLVMGetNamedFunction(M, buf) }; assert!((T as int != 0)); let args: &[ValueRef] = []; self.count_insn("trap"); llvm::LLVMBuildCall( self.llbuilder, T, vec::raw::to_ptr(args), args.len() as c_uint, noname()); } } pub fn landing_pad(&self, ty: Type, pers_fn: ValueRef, num_clauses: uint) -> ValueRef { self.count_insn("landingpad"); unsafe { llvm::LLVMBuildLandingPad( self.llbuilder, ty.to_ref(), pers_fn, num_clauses as c_uint, noname()) } } pub fn set_cleanup(&self, landing_pad: ValueRef) { self.count_insn("setcleanup"); unsafe { llvm::LLVMSetCleanup(landing_pad, lib::llvm::True); } } pub fn resume(&self, exn: ValueRef) -> ValueRef { self.count_insn("resume"); unsafe { llvm::LLVMBuildResume(self.llbuilder, exn) } } // Atomic Operations pub fn atomic_cmpxchg(&self, dst: ValueRef, cmp: ValueRef, src: ValueRef, order: AtomicOrdering) -> ValueRef { unsafe { llvm::LLVMBuildAtomicCmpXchg(self.llbuilder, dst, cmp, src, order) } } pub fn atomic_rmw(&self, op: AtomicBinOp, dst: ValueRef, src: ValueRef, order: AtomicOrdering) -> ValueRef { unsafe { llvm::LLVMBuildAtomicRMW(self.llbuilder, op, dst, src, order, False) } } pub fn atomic_fence(&self, order: AtomicOrdering) { unsafe { llvm::LLVMBuildAtomicFence(self.llbuilder, order); } } }