[mips][msa] Fix immediate value of LSA instruction as it was being wrongly encoded.

    
The immediate field should be encoded as "imm - 1" as the CPU always adds one to that field.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195004 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Target/Mips/MipsCodeEmitter.cpp b/lib/Target/Mips/MipsCodeEmitter.cpp
index f4e1e18..ca4163d 100644
--- a/lib/Target/Mips/MipsCodeEmitter.cpp
+++ b/lib/Target/Mips/MipsCodeEmitter.cpp
@@ -114,6 +114,7 @@ private:
   unsigned getMemEncodingMMImm12(const MachineInstr &MI, unsigned OpNo) const;
   unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const;
   unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const;
+  unsigned getLSAImmEncoding(const MachineInstr &MI, unsigned OpNo) const;
 
   void emitGlobalAddressUnaligned(const GlobalValue *GV, unsigned Reloc,
                                   int Offset) const;
@@ -236,6 +237,12 @@ unsigned MipsCodeEmitter::getSizeInsEncoding(const MachineInstr &MI,
          getMachineOpValue(MI, MI.getOperand(OpNo)) - 1;
 }
 
+unsigned MipsCodeEmitter::getLSAImmEncoding(const MachineInstr &MI,
+                                            unsigned OpNo) const {
+  llvm_unreachable("Unimplemented function.");
+  return 0;
+}
+
 /// getMachineOpValue - Return binary encoding of operand. If the machine
 /// operand requires relocation, record the relocation and return zero.
 unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI,