Improve Mips JIT.
Implement encoder methods getJumpTargetOpValue and getBranchTargetOpValue
for jmptarget and brtarget Mips tablegen operand types in the code emitter
for old-style JIT. Rename the pc relative relocation for branches - new
name is Mips::reloc_mips_pc16.
Patch by Sasa Stankovic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147382 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsCodeEmitter.cpp b/lib/Target/Mips/MipsCodeEmitter.cpp
index a3b260f..fd768f2 100644
--- a/lib/Target/Mips/MipsCodeEmitter.cpp
+++ b/lib/Target/Mips/MipsCodeEmitter.cpp
@@ -163,7 +163,7 @@
return Mips::reloc_mips_26;
if ((Form == MipsII::FrmI || Form == MipsII::FrmFI)
&& MI.isBranch())
- return Mips::reloc_mips_branch;
+ return Mips::reloc_mips_pc16;
if (Form == MipsII::FrmI && MI.getOpcode() == Mips::LUi)
return Mips::reloc_mips_hi;
return Mips::reloc_mips_lo;
@@ -171,13 +171,22 @@
unsigned MipsCodeEmitter::getJumpTargetOpValue(const MachineInstr &MI,
unsigned OpNo) const {
- // FIXME: implement
+ MachineOperand MO = MI.getOperand(OpNo);
+ if (MO.isGlobal())
+ emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
+ else if (MO.isSymbol())
+ emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
+ else if (MO.isMBB())
+ emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
+ else
+ llvm_unreachable("Unexpected jump target operand kind.");
return 0;
}
unsigned MipsCodeEmitter::getBranchTargetOpValue(const MachineInstr &MI,
unsigned OpNo) const {
- // FIXME: implement
+ MachineOperand MO = MI.getOperand(OpNo);
+ emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
return 0;
}