mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
f0569be4a9
DAGcombine's ability to find reasons to remove truncates when they were not needed. Consequently, the CellSPU backend would produce correct, but _really slow and horrible_, code. Replaced with instruction sequences that do the equivalent truncation in SPUInstrInfo.td. - Re-examine how unaligned loads and stores work. Generated unaligned load code has been tested on the CellSPU hardware; see the i32operations.c and i64operations.c in CodeGen/CellSPU/useful-harnesses. (While they may be toy test code, it does prove that some real world code does compile correctly.) - Fix truncating stores in bug 3193 (note: unpack_df.ll will still make llc fault because i64 ult is not yet implemented.) - Added i64 eq and neq for setcc and select/setcc; started new instruction information file for them in SPU64InstrInfo.td. Additional i64 operations should be added to this file and not to SPUInstrInfo.td. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61447 91177308-0d34-0410-b5e6-96231b3b80d8
51 lines
1.8 KiB
C++
51 lines
1.8 KiB
C++
//===-- SPUTargetAsmInfo.cpp - Cell SPU asm properties ----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file contains the declarations of the SPUTargetAsmInfo properties.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "SPUTargetAsmInfo.h"
|
|
#include "SPUTargetMachine.h"
|
|
#include "llvm/Function.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
|
|
using namespace llvm;
|
|
|
|
SPULinuxTargetAsmInfo::SPULinuxTargetAsmInfo(const SPUTargetMachine &TM) :
|
|
SPUTargetAsmInfo<ELFTargetAsmInfo>(TM) {
|
|
PCSymbol = ".";
|
|
CommentString = "#";
|
|
GlobalPrefix = "";
|
|
PrivateGlobalPrefix = ".L";
|
|
// This corresponds to what the gcc SPU compiler emits, for consistency.
|
|
CStringSection = ".rodata.str";
|
|
|
|
// BSS section needs to be emitted as ".section"
|
|
BSSSection = "\t.section\t.bss";
|
|
BSSSection_ = getUnnamedSection("\t.section\t.bss",
|
|
SectionFlags::Writeable | SectionFlags::BSS,
|
|
true);
|
|
|
|
}
|
|
|
|
/// PreferredEHDataFormat - This hook allows the target to select data
|
|
/// format used for encoding pointers in exception handling data. Reason is
|
|
/// 0 for data, 1 for code labels, 2 for function pointers. Global is true
|
|
/// if the symbol can be relocated.
|
|
unsigned
|
|
SPULinuxTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
|
|
bool Global) const {
|
|
// We really need to write something here.
|
|
return TargetAsmInfo::PreferredEHDataFormat(Reason, Global);
|
|
}
|
|
|
|
// Instantiate default implementation.
|
|
TEMPLATE_INSTANTIATION(class SPUTargetAsmInfo<TargetAsmInfo>);
|