[mips] Define pseudo instructions for spilling and copying accumulator

registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178390 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 26 insertions, 0 deletions

diff --git a/lib/Target/Mips/Mips64InstrInfo.td b/lib/Target/Mips/Mips64InstrInfo.td
index dafa37558b..a5eea5185c 100644
--- a/lib/Target/Mips/Mips64InstrInfo.td
+++ b/lib/Target/Mips/Mips64InstrInfo.td
@@ -66,6 +66,14 @@ let usesCustomInserter = 1, Predicates = [HasStdEnc],
   defm ATOMIC_CMP_SWAP_I64  : AtomicCmpSwap64<atomic_cmp_swap_64>;
 }
 
+/// Pseudo instructions for loading, storing and copying accumulator registers.
+let isPseudo = 1 in {
+  defm LOAD_AC128  : LoadM<"load_ac128", ACRegs128>;
+  defm STORE_AC128 : StoreM<"store_ac128", ACRegs128>;
+}
+
+def COPY_AC128 : PseudoSE<(outs ACRegs128:$dst), (ins ACRegs128:$src), []>;
+
 //===----------------------------------------------------------------------===//
 // Instruction definition
 //===----------------------------------------------------------------------===//
diff --git a/lib/Target/Mips/MipsDSPInstrInfo.td b/lib/Target/Mips/MipsDSPInstrInfo.td
index 9531b91487..54192eba41 100644
--- a/lib/Target/Mips/MipsDSPInstrInfo.td
+++ b/lib/Target/Mips/MipsDSPInstrInfo.td
@@ -1271,6 +1271,14 @@ def MULSA_W_PH_PSEUDO : DPA_W_PH_PSEUDO_BASE<MipsMULSA_W_PH, NoItinerary,
 
 }
 
+/// Pseudo instructions for loading, storing and copying accumulator registers.
+let isPseudo = 1 in {
+  defm LOAD_AC_DSP  : LoadM<"load_ac_dsp", ACRegsDSP>;
+  defm STORE_AC_DSP : StoreM<"store_ac_dsp", ACRegsDSP>;
+}
+
+def COPY_AC_DSP : PseudoSE<(outs ACRegsDSP:$dst), (ins ACRegsDSP:$src), []>;
+
 // Patterns.
 class DSPPat<dag pattern, dag result, Predicate pred = HasDSP> :
   Pat<pattern, result>, Requires<[pred]>;
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 043077fde0..a9a89a8d83 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -436,6 +436,7 @@ class Load<string opstr, SDPatternOperator OpNode, RegisterClass RC,
          [(set RC:$rt, (OpNode addr:$addr))], NoItinerary, FrmI> {
   let DecoderMethod = "DecodeMem";
   let canFoldAsLoad = 1;
+  let mayLoad = 1;
 }
 
 class Store<string opstr, SDPatternOperator OpNode, RegisterClass RC,
@@ -443,6 +444,7 @@ class Store<string opstr, SDPatternOperator OpNode, RegisterClass RC,
   InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
          [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> {
   let DecoderMethod = "DecodeMem";
+  let mayStore = 1;
 }
 
 multiclass LoadM<string opstr, RegisterClass RC,
@@ -794,6 +796,14 @@ let usesCustomInserter = 1 in {
   defm ATOMIC_CMP_SWAP_I32  : AtomicCmpSwap32<atomic_cmp_swap_32>;
 }
 
+/// Pseudo instructions for loading, storing and copying accumulator registers.
+let isPseudo = 1 in {
+  defm LOAD_AC64  : LoadM<"load_ac64", ACRegs>;
+  defm STORE_AC64 : StoreM<"store_ac64", ACRegs>;
+}
+
+def COPY_AC64 : PseudoSE<(outs ACRegs:$dst), (ins ACRegs:$src), []>;
+
 //===----------------------------------------------------------------------===//
 // Instruction definition
 //===----------------------------------------------------------------------===//