Implement PPC64 relocations types
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29125 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCJITInfo.cpp b/lib/Target/PowerPC/PPCJITInfo.cpp
index 98bc4e1..1d4760a 100644
--- a/lib/Target/PowerPC/PPCJITInfo.cpp
+++ b/lib/Target/PowerPC/PPCJITInfo.cpp
@@ -207,7 +207,7 @@
case PPC::reloc_absolute_ptr_high: // Pointer relocations.
case PPC::reloc_absolute_ptr_low:
case PPC::reloc_absolute_high: // high bits of ref -> low 16 of instr
- case PPC::reloc_absolute_low: // low bits of ref -> low 16 of instr
+ case PPC::reloc_absolute_low: { // low bits of ref -> low 16 of instr
ResultPtr += MR->getConstantVal();
// If this is a high-part access, get the high-part.
@@ -227,6 +227,16 @@
*RelocPos = LowBits | HighBits; // Slam into low 16-bits
break;
}
+ case PPC::reloc_absolute_low_ix: { // low bits of ref -> low 14 of instr
+ ResultPtr += MR->getConstantVal();
+ // Do the addition then mask, so the addition does not overflow the 16-bit
+ // immediate section of the instruction.
+ unsigned LowBits = (*RelocPos + ResultPtr) & 0xFFFC;
+ unsigned HighBits = *RelocPos & 0xFFFF0003;
+ *RelocPos = LowBits | HighBits; // Slam into low 14-bits.
+ break;
+ }
+ }
}
}