1 //===-- WebAssemblyMCAsmInfo.cpp - WebAssembly asm properties -------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 /// \brief This file contains the declarations of the WebAssemblyMCAsmInfo
14 //===----------------------------------------------------------------------===//
16 #include "WebAssemblyMCAsmInfo.h"
17 #include "llvm/ADT/Triple.h"
18 #include "llvm/Support/CommandLine.h"
21 #define DEBUG_TYPE "wasm-mc-asm-info"
23 WebAssemblyMCAsmInfo::~WebAssemblyMCAsmInfo() {}
25 WebAssemblyMCAsmInfo::WebAssemblyMCAsmInfo(const Triple &T) {
26 PointerSize = CalleeSaveStackSlotSize = T.isArch64Bit() ? 8 : 4;
28 // TODO: What should MaxInstLength be?
30 // WebAssembly's text format uses s-expressions to represent its AST,
31 // LISP-style comments are therefore suitable.
34 PrivateGlobalPrefix = "";
35 PrivateLabelPrefix = "";
37 InlineAsmStart = ";APP\n";
38 InlineAsmEnd = ";NO_APP\n";
40 UseDataRegionDirectives = true;
42 Data8bitsDirective = "\t.int8\t";
43 Data16bitsDirective = "\t.int16\t";
44 Data32bitsDirective = "\t.int32\t";
45 Data64bitsDirective = "\t.int64\t";
47 AlignmentIsInBytes = false;
48 COMMDirectiveAlignmentIsInBytes = false;
49 LCOMMDirectiveAlignmentType = LCOMM::Log2Alignment;
51 HasDotTypeDotSizeDirective = false;
52 HasSingleParameterDotFile = false;
54 SupportsDebugInformation = true;
56 // For now, WebAssembly does not support exceptions.
57 ExceptionsType = ExceptionHandling::None;
59 // TODO: UseIntegratedAssembler?