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Side by Side Diff: src/IceInstMIPS32.cpp

Issue 1176133004: implement the null function for the Mips32 subzero compiler (Closed) Base URL: https://chromium.googlesource.com/native_client/pnacl-subzero.git@master
Patch Set: Fixing patch per review comments Created 5 years, 5 months ago
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1 //===- subzero/src/IceInstMips32.cpp - Mips32 instruction implementation ----=== //
2 //
3 // The Subzero Code Generator
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 /// \file
11 /// This file implements the InstMips32 and OperandMips32 classes,
12 /// primarily the constructors and the dump()/emit() methods.
13 ///
14 //===----------------------------------------------------------------------===//
15
16 #include "IceAssemblerMIPS32.h"
17 #include "IceCfg.h"
18 #include "IceCfgNode.h"
19 #include "IceInst.h"
20 #include "IceInstMIPS32.h"
21 #include "IceOperand.h"
22 #include "IceRegistersMIPS32.h"
23 #include "IceTargetLoweringMIPS32.h"
24
25 namespace Ice {
26
27
28 InstMIPS32Ret::InstMIPS32Ret(Cfg *Func, Variable *RA, Variable *Source)
29 : InstMIPS32(Func, InstMIPS32::Ret, Source ? 2 : 1, nullptr) {
30 addSource(RA);
31 if (Source)
32 addSource(Source);
33 }
34
35 void InstMIPS32Ret::emit(const Cfg *Func) const {
36 if (!ALLOW_DUMP)
37 return;
38 assert(getSrcSize() > 0);
39 Variable *RA = llvm::cast<Variable>(getSrc(0));
40 assert(RA->hasReg());
41 assert(RA->getRegNum() == RegMIPS32::Reg_RA);
42 Ostream &Str = Func->getContext()->getStrEmit();
43 Str << "\t"
44 << "jr $ra"
45 << "\t";
46 RA->emit(Func);
47 }
48
49 void InstMIPS32Ret::emitIAS(const Cfg *Func) const {
50 (void)Func;
51 llvm_unreachable("Not yet implemented");
52 }
53
54 void InstMIPS32Ret::dump(const Cfg *Func) const {
55 if (!ALLOW_DUMP)
56 return;
57 Ostream &Str = Func->getContext()->getStrDump();
58 Type Ty = (getSrcSize() == 1 ? IceType_void : getSrc(0)->getType());
59 Str << "ret." << Ty << " ";
60 dumpSources(Func);
61 }
62 }
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