diff options
| author | Jim Grosbach <grosbach@apple.com> | 2010-10-07 22:12:50 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2010-10-07 22:12:50 +0000 |
| commit | a270576d6da83e2a5dd4636828d1323c21366957 (patch) | |
| tree | 92937f5c952c2a03bb43509bf90c2b5a94c56515 /lib | |
| parent | d03eb75f3f12b2a189b16a474550d53986084883 (diff) | |
| download | external_llvm-a270576d6da83e2a5dd4636828d1323c21366957.tar.gz external_llvm-a270576d6da83e2a5dd4636828d1323c21366957.tar.bz2 external_llvm-a270576d6da83e2a5dd4636828d1323c21366957.zip | |
Trivial MC code emitter shell. No instruction forms actually handled yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115993 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/ARM/ARMMCCodeEmitter.cpp | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/lib/Target/ARM/ARMMCCodeEmitter.cpp b/lib/Target/ARM/ARMMCCodeEmitter.cpp index cfebe97dfe..35319a473d 100644 --- a/lib/Target/ARM/ARMMCCodeEmitter.cpp +++ b/lib/Target/ARM/ARMMCCodeEmitter.cpp @@ -13,13 +13,16 @@ #define DEBUG_TYPE "arm-emitter" #include "ARM.h" -#include "ARMBaseInfo.h" +#include "ARMInstrInfo.h" #include "llvm/MC/MCCodeEmitter.h" #include "llvm/MC/MCExpr.h" #include "llvm/MC/MCInst.h" +#include "llvm/ADT/Statistic.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; +STATISTIC(MCNumEmitted, "Number of MC instructions emitted"); + namespace { class ARMMCCodeEmitter : public MCCodeEmitter { ARMMCCodeEmitter(const ARMMCCodeEmitter &); // DO NOT IMPLEMENT @@ -31,7 +34,6 @@ class ARMMCCodeEmitter : public MCCodeEmitter { public: ARMMCCodeEmitter(TargetMachine &tm, MCContext &ctx) : TM(tm), TII(*TM.getInstrInfo()), Ctx(ctx) { - assert(0 && "ARMMCCodeEmitter::ARMMCCodeEmitter() not yet implemented."); } ~ARMMCCodeEmitter() {} @@ -107,7 +109,21 @@ EmitImmediate(const MCOperand &DispOp, unsigned Size, MCFixupKind FixupKind, void ARMMCCodeEmitter:: EncodeInstruction(const MCInst &MI, raw_ostream &OS, SmallVectorImpl<MCFixup> &Fixups) const { - assert(0 && "ARMMCCodeEmitter::EncodeInstruction() not yet implemented."); + unsigned Opcode = MI.getOpcode(); + const TargetInstrDesc &Desc = TII.get(Opcode); + uint64_t TSFlags = Desc.TSFlags; + + // Pseudo instructions don't get encoded. + if ((TSFlags & ARMII::FormMask) == ARMII::Pseudo) + return; + + ++MCNumEmitted; // Keep track of the # of mi's emitted + switch (TSFlags & ARMII::FormMask) { + default: { + llvm_unreachable("Unhandled instruction encoding format!"); + break; + } + } } // FIXME: These #defines shouldn't be necessary. Instead, tblgen should |