LLVM 17.0.0git
WebAssemblyMCAsmInfo.cpp
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1//===-- WebAssemblyMCAsmInfo.cpp - WebAssembly asm properties -------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8///
9/// \file
10/// This file contains the declarations of the WebAssemblyMCAsmInfo
11/// properties.
12///
13//===----------------------------------------------------------------------===//
14
17#include "llvm/ADT/Triple.h"
18
19using namespace llvm;
20
21#define DEBUG_TYPE "wasm-mc-asm-info"
22
24
26 const MCTargetOptions &Options) {
27 CodePointerSize = CalleeSaveStackSlotSize = T.isArch64Bit() ? 8 : 4;
28
29 // TODO: What should MaxInstLength be?
30
32
33 // Use .skip instead of .zero because .zero is confusing when used with two
34 // arguments (it doesn't actually zero things out).
35 ZeroDirective = "\t.skip\t";
36
37 Data8bitsDirective = "\t.int8\t";
38 Data16bitsDirective = "\t.int16\t";
39 Data32bitsDirective = "\t.int32\t";
40 Data64bitsDirective = "\t.int64\t";
41
42 AlignmentIsInBytes = false;
45
47
48 // When compilation is done on a cpp file by clang, the exception model info
49 // is stored in LangOptions, which is later used to set the info in
50 // TargetOptions and then MCAsmInfo in LLVMTargetMachine::initAsmInfo(). But
51 // this process does not happen when compiling bitcode directly with clang, so
52 // we make sure this info is set correctly.
55}
This header is deprecated in favour of llvm/TargetParser/Triple.h.
static LVOptions Options
Definition: LVOptions.cpp:25
This file contains the declaration of the WebAssemblyMCAsmInfo class.
This file contains the declaration of the WebAssembly-specific utility functions.
const char * Data16bitsDirective
Definition: MCAsmInfo.h:286
const char * Data8bitsDirective
These directives are used to output some unit of integer data to the current section.
Definition: MCAsmInfo.h:285
const char * Data64bitsDirective
Definition: MCAsmInfo.h:288
ExceptionHandling ExceptionsType
Exception handling format for the target. Defaults to None.
Definition: MCAsmInfo.h:454
const char * Data32bitsDirective
Definition: MCAsmInfo.h:287
LCOMM::LCOMMType LCOMMDirectiveAlignmentType
Describes if the .lcomm directive for the target supports an alignment argument and how it is interpr...
Definition: MCAsmInfo.h:369
bool SupportsDebugInformation
True if target supports emission of debugging information.
Definition: MCAsmInfo.h:451
bool COMMDirectiveAlignmentIsInBytes
True is .comm's and .lcomms optional alignment is to be specified in bytes instead of log2(n).
Definition: MCAsmInfo.h:365
bool AlignmentIsInBytes
If this is true (the default) then the asmprinter emits ".align N" directives, where N is the number ...
Definition: MCAsmInfo.h:329
const char * ZeroDirective
This should be set to the directive used to get some number of zero (and non-zero if supported by the...
Definition: MCAsmInfo.h:249
bool UseDataRegionDirectives
This is true if data region markers should be printed as ".data_region/.end_data_region" directives.
Definition: MCAsmInfo.h:234
unsigned CodePointerSize
Code pointer size in bytes. Default is 4.
Definition: MCAsmInfo.h:72
unsigned CalleeSaveStackSlotSize
Size of the stack slot reserved for callee-saved registers, in bytes.
Definition: MCAsmInfo.h:76
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
WebAssemblyMCAsmInfo(const Triple &T, const MCTargetOptions &Options)
@ Log2Alignment
Definition: MCAsmInfo.h:50
cl::opt< bool > WasmEnableEH
cl::opt< bool > WasmEnableSjLj
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
@ Wasm
WebAssembly Exception Handling.