search for: emitbyte

...es - This callback is invoked when a ULEB128 > needs to be > + /// written to the output stream. > + void emitULEB128Bytes(unsigned Value) { > + do { > + unsigned char Byte = Value & 0x7f; > + Value >>= 7; > + if (Value) Byte |= 0x80; > + emitByte(Byte); > + } while (Value); > + } > + > + /// emitSLEB128Bytes - This callback is invoked when a SLEB128 > needs to be > + /// written to the output stream. > + void emitSLEB128Bytes(int Value) { > + int Sign = Value >> (8 * sizeof(Value) - 1); > + bo...

Dear all, Here's a new patch with Evan's comments (thx Evan!) and some cleanups. Now the (duplicated) exception handling code is in a new file: lib/ExecutionEngine/JIT/JITDwarfEmitter. This patch should work on linux/x86 and linux/ppc (tested). Nicolas -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: jit-exceptions.patch URL:

...se + RMfield = (IndexReg16 & 1) | ((7 - RMfield) << 1); + } + + if (Disp.isImm() && isDisp8(Disp.getImm())) { + // Use [REG]+disp8 form if we can, and for [BP] which cannot be encoded. + if (BaseRegNo == N86::EBP || Disp.getImm() != 0) { + EmitByte(ModRMByte(1, RegOpcodeField, RMfield), CurByte, OS); + EmitImmediate(Disp, MI.getLoc(), 1, FK_Data_1, CurByte, OS, Fixups); + return; + } else { + // No displacement + EmitByte(ModRMByte(0, RegOpcodeField, RMfield), CurByte, OS); + return; +...

I compile these two lines in llc @tst1 = internal global [4 x i8] zeroinitializer; @tst2 = internal global [4 x i8] [i8 0, i8 1, i8 2, i8 3]; @tst1 is emited via MCStreamer::EmitCommonSymbol while the other is emited via MCStreamer::EmitLabel followed by MCStreamer::EmitBytes from what I can tell, only symbols with common linkage should me emitted by MCStreamer::EmitCommonSymbol, is this the expected behavior or should I fix it? -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/201...

...& 1) | ((7 - RMfield) << 1); > + } > + > + if (Disp.isImm() && isDisp8(Disp.getImm())) { > + // Use [REG]+disp8 form if we can, and for [BP] which cannot be > encoded. > + if (BaseRegNo == N86::EBP || Disp.getImm() != 0) { > + EmitByte(ModRMByte(1, RegOpcodeField, RMfield), CurByte, OS); > + EmitImmediate(Disp, MI.getLoc(), 1, FK_Data_1, CurByte, OS, > Fixups); > + return; > + } else { > + // No displacement > + EmitByte(ModRMByte(0, RegOpcodeField, RMfield), CurByte, O...

...t;getCurrentSectionOnly(); OutStreamer->SwitchSection(Section); for (const auto &Sled : Sleds) { OutStreamer->EmitSymbolValue(Sled.Sled, 8); OutStreamer->EmitSymbolValue(CurrentFnSym, 8); auto Kind = static_cast<uint8_t>(Sled.Kind); OutStreamer->EmitBytes( StringRef(reinterpret_cast<const char *>(&Kind), 1)); OutStreamer->EmitBytes( StringRef(reinterpret_cast<const char *>(&Sled.AlwaysInstrument), 1)); OutStreamer->EmitZeros(14); } OutStreamer->SwitchSection(PrevSection); } Sl...

Hi everyone, vmkit requires to know the size of a jitted method before emitting the method. This allows to allocate the correct size for the method. The attached patch creates this functionality when the flag SizedMemoryCode is on. In order to implement this functionality, i had to virtualize some MachineCodeEmitter functions. Is it OK to commit the patch? Thanks, Nicolas --------------

...fined (__LP64__) const unsigned Alignment = 8; uint8_t Buffer[8]; uint8_t *Cur = Buffer; @@ -481,7 +487,7 @@ JCE.emitAlignment(4); void *Result = (void*)JCE.getCurrentPCValue(); if (NotCC) { -#if defined (X86_64_JIT) +#if defined (X86_64_JIT) && defined (__LP64__) JCE.emitByte(0x49); // REX prefix JCE.emitByte(0xB8+2); // movabsq r10 JCE.emitWordLE((unsigned)(intptr_t)Target); @@ -496,7 +502,7 @@ return Result; } -#if defined (X86_64_JIT) +#if defined (X86_64_JIT) && defined (__LP64__) JCE.emitByte(0x49); // REX pre...

...false; >> + } >> + virtual void startFunctionStub(unsigned StubSize, unsigned >> Alignment) {} >> + virtual void *finishFunctionStub(const Function *F) { return 0; } >> + virtual void addRelocation(const llvm::MachineRelocation&) { } >> + virtual void emitByte(unsigned char B) { >> + CurBufferPtr++; >> + } >> + virtual void emitWordLE(unsigned W) { >> + CurBufferPtr+=4; >> + } >> + virtual void emitWordBE(unsigned W) { >> + CurBufferPtr+=4; >> + } >> + virtual void emitInt32(int Value)...

...erPtr); > + return false; > + } > + virtual void startFunctionStub(unsigned StubSize, unsigned > Alignment) {} > + virtual void *finishFunctionStub(const Function *F) { return 0; } > + virtual void addRelocation(const llvm::MachineRelocation&) { } > + virtual void emitByte(unsigned char B) { > + CurBufferPtr++; > + } > + virtual void emitWordLE(unsigned W) { > + CurBufferPtr+=4; > + } > + virtual void emitWordBE(unsigned W) { > + CurBufferPtr+=4; > + } > + virtual void emitInt32(int Value) { > + CurBufferPtr += 4; >...

...uted at /lib/Target/X86/MCTargetDesc/X86BaseInfo.h:574! i made extensive use of gdb and after debugging i found the line with issue in X86MCCodeEmitter.cpp. Here NumOps=3 (all registers). and CurOp is 1st initialized to 0. then, the following code gets executed; case X86II::MRMDestReg: { EmitByte(BaseOpcode, CurByte, OS); unsigned SrcRegNum = CurOp + 1; //SrcRegNum=1 EmitRegModRMByte(MI.getOperand(CurOp), GetX86RegNum(MI.getOperand(SrcRegNum)), CurByte, OS); CurOp = SrcRegNum + 1; break; } so here CurOp becomes 2. After this; it comes to; else { // I...

...} >>> + virtual void startFunctionStub(unsigned StubSize, unsigned >>> Alignment) {} >>> + virtual void *finishFunctionStub(const Function *F) { return 0; } >>> + virtual void addRelocation(const llvm::MachineRelocation&) { } >>> + virtual void emitByte(unsigned char B) { >>> + CurBufferPtr++; >>> + } >>> + virtual void emitWordLE(unsigned W) { >>> + CurBufferPtr+=4; >>> + } >>> + virtual void emitWordBE(unsigned W) { >>> + CurBufferPtr+=4; >>> + } >>> +...

...+ virtual void startFunctionStub(unsigned StubSize, unsigned >>>> Alignment) {} >>>> + virtual void *finishFunctionStub(const Function *F) { return 0; } >>>> + virtual void addRelocation(const llvm::MachineRelocation&) { } >>>> + virtual void emitByte(unsigned char B) { >>>> + CurBufferPtr++; >>>> + } >>>> + virtual void emitWordLE(unsigned W) { >>>> + CurBufferPtr+=4; >>>> + } >>>> + virtual void emitWordBE(unsigned W) { >>>> + CurBufferPtr+=4; >...

Hi, I'm working on bringing up complete coverage for a Gentoo x32 "desktop" system. I've been cooking up quite a few patches for various packages to push upstream, but right now, the biggest blocker is the lack of support for building with/codegen targeting x32 in llvm/clang. Since the x32 patches were sent last year, I see support code has landed in LLVM, and basic handling of

...ned >>>>>> Alignment) {} >>>>>> + virtual void *finishFunctionStub(const Function *F) { return >>>>>> 0; } >>>>>> + virtual void addRelocation(const llvm::MachineRelocation&) { } >>>>>> + virtual void emitByte(unsigned char B) { >>>>>> + CurBufferPtr++; >>>>>> + } >>>>>> + virtual void emitWordLE(unsigned W) { >>>>>> + CurBufferPtr+=4; >>>>>> + } >>>>>> + virtual void emitWordBE(unsigned...

...ently, and if this was available to be sub-classed, then these modifications would be more logical and not require altering the target independent code. · ‘MCAsmStream::EmitAssignment’ has been changed to accommodate our different syntax for ‘.alias’ directives. · ‘MCAsmStream::EmitBytes’ has been changed so that multiple lines of ‘.byte’ directives are emitted to avoid a line-length buffer limitation in our assembler when very large numbers of bytes are to be emitted. · ‘MCAsmStream::EmitFill’ has been changed to accommodate our different syntax for ‘.fill’ directives....

...fined (__LP64__) const unsigned Alignment = 8; uint8_t Buffer[8]; uint8_t *Cur = Buffer; @@ -481,7 +487,7 @@ JCE.emitAlignment(4); void *Result = (void*)JCE.getCurrentPCValue(); if (NotCC) { -#if defined (X86_64_JIT) +#if defined (X86_64_JIT) && defined (__LP64__) JCE.emitByte(0x49); // REX prefix JCE.emitByte(0xB8+2); // movabsq r10 JCE.emitWordLE((unsigned)(intptr_t)Target); @@ -496,7 +502,7 @@ return Result; } -#if defined (X86_64_JIT) +#if defined (X86_64_JIT) && defined (__LP64__) JCE.emitByte(0x49); // REX pre...

...t;>>>>>> + virtual void *finishFunctionStub(const Function *F) { return >>>>>>> 0; } >>>>>>> + virtual void addRelocation(const llvm::MachineRelocation&) >>>>>>> { } >>>>>>> + virtual void emitByte(unsigned char B) { >>>>>>> + CurBufferPtr++; >>>>>>> + } >>>>>>> + virtual void emitWordLE(unsigned W) { >>>>>>> + CurBufferPtr+=4; >>>>>>> + } >>>>>>> + virtual v...

...gned StubSize, unsigned >>>>> Alignment) {} >>>>> + virtual void *finishFunctionStub(const Function *F) { return >>>>> 0; } >>>>> + virtual void addRelocation(const llvm::MachineRelocation&) { } >>>>> + virtual void emitByte(unsigned char B) { >>>>> + CurBufferPtr++; >>>>> + } >>>>> + virtual void emitWordLE(unsigned W) { >>>>> + CurBufferPtr+=4; >>>>> + } >>>>> + virtual void emitWordBE(unsigned W) { >>>>&gt...

...t;>> + virtual void *finishFunctionStub(const Function *F) { return >>>>>>>> 0; } >>>>>>>> + virtual void addRelocation(const llvm::MachineRelocation&) >>>>>>>> { } >>>>>>>> + virtual void emitByte(unsigned char B) { >>>>>>>> + CurBufferPtr++; >>>>>>>> + } >>>>>>>> + virtual void emitWordLE(unsigned W) { >>>>>>>> + CurBufferPtr+=4; >>>>>>>> + } >>>>>&...