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[AVR] Fix endianness handling in AVR MC 

Differential Revision: https://reviews.llvm.org/D67926
This commit is contained in:
serge_sans_paille 2019-09-24 10:20:08 +02:00 committed by serge-sans-paille
parent 9659464d7e
commit 29b4d8f19e
1 changed files with 3 additions and 5 deletions
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8
llvm/lib/Target/AVR/MCTargetDesc/AVRMCCodeEmitter.cpp
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@ -25,6 +25,7 @@
#include "llvm/MC/MCRegisterInfo.h" #include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h" #include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/Support/Casting.h" #include "llvm/Support/Casting.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
#define DEBUG_TYPE "mccodeemitter" #define DEBUG_TYPE "mccodeemitter"
@ -268,14 +269,11 @@ unsigned AVRMCCodeEmitter::getMachineOpValue(const MCInst &MI,
void AVRMCCodeEmitter::emitInstruction(uint64_t Val, unsigned Size, void AVRMCCodeEmitter::emitInstruction(uint64_t Val, unsigned Size,
const MCSubtargetInfo &STI, const MCSubtargetInfo &STI,
raw_ostream &OS) const { raw_ostream &OS) const {
const uint16_t *Words = reinterpret_cast<uint16_t const *>(&Val);
size_t WordCount = Size / 2; size_t WordCount = Size / 2;
for (int64_t i = WordCount - 1; i >= 0; --i) { for (int64_t i = WordCount - 1; i >= 0; --i) {
uint16_t Word = Words[i]; uint16_t Word = (Val >> (i * 16)) & 0xFFFF;
support::endian::write(OS, Word, support::endianness::little);
OS << (uint8_t) ((Word & 0x00ff) >> 0);
OS << (uint8_t) ((Word & 0xff00) >> 8);
} }
} }