PPC: [wasm] Int64Lowering of I64ShrU and I64ShrS.

src/compiler/ppc/code-generator-ppc.cc

Index: src/compiler/ppc/code-generator-ppc.cc
diff --git a/src/compiler/ppc/code-generator-ppc.cc b/src/compiler/ppc/code-generator-ppc.cc
index 9d2009ac0fa324d5c56add29d9aad3341b9da457..976519eca2457c19d394ca6428f8d0ed1846b238 100644
--- a/src/compiler/ppc/code-generator-ppc.cc
+++ b/src/compiler/ppc/code-generator-ppc.cc
@@ -966,17 +966,39 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       break;
 #endif
 #if !V8_TARGET_ARCH_PPC64
-    case kPPC_PairShiftLeft:
+    case kPPC_ShiftLeftPair:
       if (instr->InputAt(2)->IsImmediate()) {
-        __ PairShiftLeft(i.OutputRegister(0), i.OutputRegister(1),
+        __ ShiftLeftPair(i.OutputRegister(0), i.OutputRegister(1),
                          i.InputRegister(0), i.InputRegister(1),
                          i.InputInt32(2));
       } else {
-        __ PairShiftLeft(i.OutputRegister(0), i.OutputRegister(1),
+        __ ShiftLeftPair(i.OutputRegister(0), i.OutputRegister(1),
                          i.InputRegister(0), i.InputRegister(1), kScratchReg,
                          i.InputRegister(2));
       }
       break;
+    case kPPC_ShiftRightPair:
+      if (instr->InputAt(2)->IsImmediate()) {
+        __ ShiftRightPair(i.OutputRegister(0), i.OutputRegister(1),
+                          i.InputRegister(0), i.InputRegister(1),
+                          i.InputInt32(2));
+      } else {
+        __ ShiftRightPair(i.OutputRegister(0), i.OutputRegister(1),
+                          i.InputRegister(0), i.InputRegister(1), kScratchReg,
+                          i.InputRegister(2));
+      }
+      break;
+    case kPPC_ShiftRightAlgPair:
+      if (instr->InputAt(2)->IsImmediate()) {
+        __ ShiftRightAlgPair(i.OutputRegister(0), i.OutputRegister(1),
+                             i.InputRegister(0), i.InputRegister(1),
+                             i.InputInt32(2));
+      } else {
+        __ ShiftRightAlgPair(i.OutputRegister(0), i.OutputRegister(1),
+                             i.InputRegister(0), i.InputRegister(1),
+                             kScratchReg, i.InputRegister(2));
+      }
+      break;
 #endif
     case kPPC_RotRight32:
       if (HasRegisterInput(instr, 1)) {