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R600: Store disassembly in a special ELF section when feature +DumpCode is enabled.

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Patch by: Jay Cornwall

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192523 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tom Stellard
2013-10-12 05:02:51 +00:00
parent c429b5cca1
commit f931867317
3 changed files with 83 additions and 14 deletions
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43
lib/Target/R600/AMDGPUMCInstLower.cpp
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@@ -15,14 +15,19 @@
#include "AMDGPUMCInstLower.h"
#include "AMDGPUAsmPrinter.h"
#include "InstPrinter/AMDGPUInstPrinter.h"
#include "R600InstrInfo.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/IR/Constants.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/MC/MCInst.h"
#include "llvm/MC/MCObjectStreamer.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include <algorithm>
using namespace llvm;
@@ -69,15 +74,45 @@ void AMDGPUAsmPrinter::EmitInstruction(const MachineInstr *MI) {
MachineBasicBlock::const_instr_iterator I = MI;
++I;
while (I != MBB->end() && I->isInsideBundle()) {
MCInst MCBundleInst;
const MachineInstr *BundledInst = I;
MCInstLowering.lower(BundledInst, MCBundleInst);
OutStreamer.EmitInstruction(MCBundleInst);
EmitInstruction(I);
++I;
}
} else {
MCInst TmpInst;
MCInstLowering.lower(MI, TmpInst);
OutStreamer.EmitInstruction(TmpInst);
if (DisasmEnabled) {
// Disassemble instruction/operands to text.
DisasmLines.resize(DisasmLines.size() + 1);
std::string &DisasmLine = DisasmLines.back();
raw_string_ostream DisasmStream(DisasmLine);
AMDGPUInstPrinter InstPrinter(*TM.getMCAsmInfo(), *TM.getInstrInfo(),
*TM.getRegisterInfo());
InstPrinter.printInst(&TmpInst, DisasmStream, StringRef());
// Disassemble instruction/operands to hex representation.
SmallVector<MCFixup, 4> Fixups;
SmallVector<char, 16> CodeBytes;
raw_svector_ostream CodeStream(CodeBytes);
MCObjectStreamer &ObjStreamer = (MCObjectStreamer &)OutStreamer;
MCCodeEmitter &InstEmitter = ObjStreamer.getAssembler().getEmitter();
InstEmitter.EncodeInstruction(TmpInst, CodeStream, Fixups);
CodeStream.flush();
HexLines.resize(HexLines.size() + 1);
std::string &HexLine = HexLines.back();
raw_string_ostream HexStream(HexLine);
for (size_t i = 0; i < CodeBytes.size(); i += 4) {
unsigned int CodeDWord = *(unsigned int *)&CodeBytes[i];
HexStream << format("%s%08X", (i > 0 ? " " : ""), CodeDWord);
}
DisasmStream.flush();
DisasmLineMaxLen = std::max(DisasmLineMaxLen, DisasmLine.size());
}
}
}