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- Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo

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and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134884 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2011-07-11 03:57:24 +00:00
parent b5a12dd12f
commit 59ee62d241
46 changed files with 387 additions and 158 deletions
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7
tools/llvm-mc/llvm-mc.cpp
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@ -17,6 +17,7 @@
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCCodeEmitter.h"
#include "llvm/MC/MCInstPrinter.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCSectionMachO.h"
#include "llvm/MC/MCStreamer.h"
#include "llvm/MC/MCSubtargetInfo.h"
@ -341,6 +342,7 @@ static int AssembleInput(const char *ProgName) {
TM->getTargetLowering()->getObjFileLowering();
const_cast<TargetLoweringObjectFile&>(TLOF).Initialize(Ctx, *TM);
OwningPtr<MCInstrInfo> MCII(TheTarget->createMCInstrInfo());
OwningPtr<MCSubtargetInfo>
STI(TheTarget->createMCSubtargetInfo(TripleName, MCPU, FeaturesStr));
@ -351,7 +353,7 @@ static int AssembleInput(const char *ProgName) {
MCCodeEmitter *CE = 0;
TargetAsmBackend *TAB = 0;
if (ShowEncoding) {
CE = TheTarget->createCodeEmitter(*TM, Ctx);
CE = TheTarget->createCodeEmitter(*MCII, *STI, Ctx);
TAB = TheTarget->createAsmBackend(TripleName);
}
Str.reset(TheTarget->createAsmStreamer(Ctx, FOS, /*asmverbose*/true,
@ -362,7 +364,7 @@ static int AssembleInput(const char *ProgName) {
Str.reset(createNullStreamer(Ctx));
} else {
assert(FileType == OFT_ObjectFile && "Invalid file type!");
MCCodeEmitter *CE = TheTarget->createCodeEmitter(*TM, Ctx);
MCCodeEmitter *CE = TheTarget->createCodeEmitter(*MCII, *STI, Ctx);
TargetAsmBackend *TAB = TheTarget->createAsmBackend(TripleName);
Str.reset(TheTarget->createObjectStreamer(TripleName, Ctx, *TAB,
FOS, CE, RelaxAll,
@ -451,6 +453,7 @@ int main(int argc, char **argv) {
llvm::InitializeAllTargetInfos();
// FIXME: We shouldn't need to initialize the Target(Machine)s.
llvm::InitializeAllTargets();
llvm::InitializeAllMCInstrInfos();
llvm::InitializeAllMCSubtargetInfos();
llvm::InitializeAllAsmPrinters();
llvm::InitializeAllAsmParsers();