6bda14b313
I did this a long time ago with a janky python script, but now clang-format has built-in support for this. I fed clang-format every line with a #include and let it re-sort things according to the precise LLVM rules for include ordering baked into clang-format these days. I've reverted a number of files where the results of sorting includes isn't healthy. Either places where we have legacy code relying on particular include ordering (where possible, I'll fix these separately) or where we have particular formatting around #include lines that I didn't want to disturb in this patch. This patch is *entirely* mechanical. If you get merge conflicts or anything, just ignore the changes in this patch and run clang-format over your #include lines in the files. Sorry for any noise here, but it is important to keep these things stable. I was seeing an increasing number of patches with irrelevant re-ordering of #include lines because clang-format was used. This patch at least isolates that churn, makes it easy to skip when resolving conflicts, and gets us to a clean baseline (again). llvm-svn: 304787
95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
//===-- BPFInstPrinter.cpp - Convert BPF MCInst to asm syntax -------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This class prints an BPF MCInst to a .s file.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "BPFInstPrinter.h"
|
|
#include "BPF.h"
|
|
#include "llvm/MC/MCAsmInfo.h"
|
|
#include "llvm/MC/MCExpr.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/MC/MCSymbol.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/FormattedStream.h"
|
|
using namespace llvm;
|
|
|
|
#define DEBUG_TYPE "asm-printer"
|
|
|
|
// Include the auto-generated portion of the assembly writer.
|
|
#include "BPFGenAsmWriter.inc"
|
|
|
|
void BPFInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
|
|
StringRef Annot, const MCSubtargetInfo &STI) {
|
|
printInstruction(MI, O);
|
|
printAnnotation(O, Annot);
|
|
}
|
|
|
|
static void printExpr(const MCExpr *Expr, raw_ostream &O) {
|
|
#ifndef NDEBUG
|
|
const MCSymbolRefExpr *SRE;
|
|
|
|
if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr))
|
|
SRE = dyn_cast<MCSymbolRefExpr>(BE->getLHS());
|
|
else
|
|
SRE = dyn_cast<MCSymbolRefExpr>(Expr);
|
|
assert(SRE && "Unexpected MCExpr type.");
|
|
|
|
MCSymbolRefExpr::VariantKind Kind = SRE->getKind();
|
|
|
|
assert(Kind == MCSymbolRefExpr::VK_None);
|
|
#endif
|
|
O << *Expr;
|
|
}
|
|
|
|
void BPFInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
|
|
raw_ostream &O, const char *Modifier) {
|
|
assert((Modifier == 0 || Modifier[0] == 0) && "No modifiers supported");
|
|
const MCOperand &Op = MI->getOperand(OpNo);
|
|
if (Op.isReg()) {
|
|
O << getRegisterName(Op.getReg());
|
|
} else if (Op.isImm()) {
|
|
O << (int32_t)Op.getImm();
|
|
} else {
|
|
assert(Op.isExpr() && "Expected an expression");
|
|
printExpr(Op.getExpr(), O);
|
|
}
|
|
}
|
|
|
|
void BPFInstPrinter::printMemOperand(const MCInst *MI, int OpNo, raw_ostream &O,
|
|
const char *Modifier) {
|
|
const MCOperand &RegOp = MI->getOperand(OpNo);
|
|
const MCOperand &OffsetOp = MI->getOperand(OpNo + 1);
|
|
|
|
// register
|
|
assert(RegOp.isReg() && "Register operand not a register");
|
|
O << getRegisterName(RegOp.getReg());
|
|
|
|
// offset
|
|
if (OffsetOp.isImm()) {
|
|
auto Imm = OffsetOp.getImm();
|
|
if (Imm >= 0)
|
|
O << " + " << formatDec(Imm);
|
|
else
|
|
O << " - " << formatDec(-Imm);
|
|
} else {
|
|
assert(0 && "Expected an immediate");
|
|
}
|
|
}
|
|
|
|
void BPFInstPrinter::printImm64Operand(const MCInst *MI, unsigned OpNo,
|
|
raw_ostream &O) {
|
|
const MCOperand &Op = MI->getOperand(OpNo);
|
|
if (Op.isImm())
|
|
O << (uint64_t)Op.getImm();
|
|
else
|
|
O << Op;
|
|
}
|