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Added Subtarget support into RegisterInfo

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Added HasABICall and HasAbsoluteCall (equivalent to gcc -mabicall and 
-mno-shared). HasAbsoluteCall is not implemented but HasABICall is the 
default for o32 ABI. Now, both should help into a more accurate 
relocation types implementation. 
Added IsLinux is needed to choose between asm directives.
Instruction name strings cleanup.
AsmPrinter improved.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53551 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes
2008-07-14 14:42:54 +00:00
parent 91e1c32dd0
commit 43d526d162
9 changed files with 200 additions and 116 deletions
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24
lib/Target/Mips/MipsSubtarget.cpp
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@ -15,23 +15,34 @@
#include "Mips.h"
#include "MipsGenSubtarget.inc"
#include "llvm/Module.h"
#include "llvm/Support/CommandLine.h"
using namespace llvm;
cl::opt<bool> NotABICall("disable-mips-abicall", cl::Hidden,
cl::desc("Disable code for SVR4-style dynamic objects"));
cl::opt<bool> AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
cl::desc("Enable absolute call within abicall"));
MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
const std::string &FS, bool little) :
MipsArchVersion(Mips1), MipsABI(O32), IsLittle(little), IsSingleFloat(false),
IsFP64bit(false), IsGP64bit(false), HasVFPU(false), HasSEInReg(false)
IsFP64bit(false), IsGP64bit(false), HasVFPU(false), HasSEInReg(false),
HasABICall(true), HasAbsoluteCall(false), IsLinux(true)
{
std::string CPU = "mips1";
// Parse features string.
ParseSubtargetFeatures(FS, CPU);
const std::string& TT = M.getTargetTriple();
// Is the target system Linux ?
if (TT.find("linux") == std::string::npos)
IsLinux = false;
// When only the target triple is specified and is
// a allegrex target, set the features. We also match
// big and little endian allegrex cores (dont really
// know if a big one exists)
const std::string& TT = M.getTargetTriple();
if (TT.find("mipsallegrex") != std::string::npos) {
MipsABI = EABI;
IsSingleFloat = true;
@ -39,4 +50,13 @@ MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
HasVFPU = true; // Enables Allegrex Vector FPU (not supported yet)
HasSEInReg = true;
}
// Abicall is the default for O32 ABI and is ignored
// for EABI.
if (NotABICall || isABI_EABI())
HasABICall = false;
// TODO: disable when handling 64 bit symbols in the future.
if (HasABICall && AbsoluteCall)
HasAbsoluteCall = true;
}