Revert r215359 - [mips] Implement .ent, .end, .frame, .mask and .fmask assembler directives

It seems to cause an lld test (elf/Mips/hilo16-3.test) to fail. Reverted while we investigate.

llvm-svn: 215361

1 files changed, 7 insertions, 53 deletions

diff --git a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
index 23e0d90dc0b..7a8230fdebf 100644
--- a/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
+++ b/llvm/lib/Target/Mips/MCTargetDesc/MipsTargetStreamer.cpp
@@ -29,9 +29,7 @@
 using namespace llvm;
 
 MipsTargetStreamer::MipsTargetStreamer(MCStreamer &S)
-    : MCTargetStreamer(S), canHaveModuleDirective(true) {
-  GPRInfoSet = FPRInfoSet = FrameInfoSet = false;
-}
+    : MCTargetStreamer(S), canHaveModuleDirective(true) {}
 void MipsTargetStreamer::emitDirectiveSetMicroMips() {}
 void MipsTargetStreamer::emitDirectiveSetNoMicroMips() {}
 void MipsTargetStreamer::emitDirectiveSetMips16() {}
@@ -494,45 +492,11 @@ void MipsTargetELFStreamer::emitDirectiveSetNoAt() {
 }
 
 void MipsTargetELFStreamer::emitDirectiveEnd(StringRef Name) {
-  MCAssembler &MCA = getStreamer().getAssembler();
-  MCContext &Context = MCA.getContext();
-  MCStreamer &OS = getStreamer();
-
-  const MCSectionELF *Sec = Context.getELFSection(".pdr", ELF::SHT_PROGBITS,
-                                                  ELF::SHF_ALLOC | ELF::SHT_REL,
-                                                  SectionKind::getMetadata());
-
-  const MCSymbolRefExpr *ExprRef =
-      MCSymbolRefExpr::Create(Name, MCSymbolRefExpr::VK_None, Context);
-
-  MCSectionData &SecData = MCA.getOrCreateSectionData(*Sec);
-  SecData.setAlignment(4);
-
-  OS.PushSection();
-
-  OS.SwitchSection(Sec);
-
-  OS.EmitValueImpl(ExprRef, 4);
-
-  OS.EmitIntValue(GPRInfoSet ? GPRBitMask : 0, 4); // reg_mask
-  OS.EmitIntValue(GPRInfoSet ? GPROffset : 0, 4);  // reg_offset
-
-  OS.EmitIntValue(FPRInfoSet ? FPRBitMask : 0, 4); // fpreg_mask
-  OS.EmitIntValue(FPRInfoSet ? FPROffset : 0, 4);  // fpreg_offset
-
-  OS.EmitIntValue(FrameInfoSet ? FrameOffset : 0, 4); // frame_offset
-  OS.EmitIntValue(FrameInfoSet ? FrameReg : 0, 4);    // frame_reg
-  OS.EmitIntValue(FrameInfoSet ? ReturnReg : 0, 4);   // return_reg
-
-  // The .end directive marks the end of a procedure. Invalidate
-  // the information gathered up until this point.
-  GPRInfoSet = FPRInfoSet = FrameInfoSet = false;
-
-  OS.PopSection();
+  // FIXME: implement.
 }
 
 void MipsTargetELFStreamer::emitDirectiveEnt(const MCSymbol &Symbol) {
-  GPRInfoSet = FPRInfoSet = FrameInfoSet = false;
+  // FIXME: implement.
 }
 
 void MipsTargetELFStreamer::emitDirectiveAbiCalls() {
@@ -578,28 +542,18 @@ void MipsTargetELFStreamer::emitDirectiveOptionPic2() {
 }
 
 void MipsTargetELFStreamer::emitFrame(unsigned StackReg, unsigned StackSize,
-                                      unsigned ReturnReg_) {
-  MCContext &Context = getStreamer().getAssembler().getContext();
-  const MCRegisterInfo *RegInfo = Context.getRegisterInfo();
-
-  FrameInfoSet = true;
-  FrameReg = RegInfo->getEncodingValue(StackReg);
-  FrameOffset = StackSize;
-  ReturnReg = RegInfo->getEncodingValue(ReturnReg_);
+                                      unsigned ReturnReg) {
+  // FIXME: implement.
 }
 
 void MipsTargetELFStreamer::emitMask(unsigned CPUBitmask,
                                      int CPUTopSavedRegOff) {
-  GPRInfoSet = true;
-  GPRBitMask = CPUBitmask;
-  GPROffset = CPUTopSavedRegOff;
+  // FIXME: implement.
 }
 
 void MipsTargetELFStreamer::emitFMask(unsigned FPUBitmask,
                                       int FPUTopSavedRegOff) {
-  FPRInfoSet = true;
-  FPRBitMask = FPUBitmask;
-  FPROffset = FPUTopSavedRegOff;
+  // FIXME: implement.
 }
 
 void MipsTargetELFStreamer::emitDirectiveSetMips1() {