[PowerPC] Support symbolic u16imm operands

Currently, all instructions taking s16imm operands support symbolic
operands.  However, for u16imm operands, we only support actual
immediate integers.  This causes the assembler to reject code like

  ori %r5, %r5, symbol@l

This patch changes the u16imm operand definition to likewise
accept symbolic operands.  In fact, s16imm and u16imm can
share the same encoding routine, now renamed to getImm16Encoding.

llvm-svn: 184944

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCInstrInfo.td b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
index a9cfd5ef872..a9706967331 100644
--- a/llvm/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/llvm/lib/Target/PowerPC/PPCInstrInfo.td
@@ -434,7 +434,7 @@ def PPCS16ImmAsmOperand : AsmOperandClass {
 }
 def s16imm  : Operand<i32> {
   let PrintMethod = "printS16ImmOperand";
-  let EncoderMethod = "getS16ImmEncoding";
+  let EncoderMethod = "getImm16Encoding";
   let ParserMatchClass = PPCS16ImmAsmOperand;
 }
 def PPCU16ImmAsmOperand : AsmOperandClass {
@@ -443,6 +443,7 @@ def PPCU16ImmAsmOperand : AsmOperandClass {
 }
 def u16imm  : Operand<i32> {
   let PrintMethod = "printU16ImmOperand";
+  let EncoderMethod = "getImm16Encoding";
   let ParserMatchClass = PPCU16ImmAsmOperand;
 }
 def PPCDirectBrAsmOperand : AsmOperandClass {