PPC: [wasm] Int64Lowering of I64Shl.

src/ppc/macro-assembler-ppc.h

Index: src/ppc/macro-assembler-ppc.h
diff --git a/src/ppc/macro-assembler-ppc.h b/src/ppc/macro-assembler-ppc.h
index 8cd9cf8c205755a55e2c0f9e5ccfbe074a398fa1..4a3215c8416abc81cf66f8c90fd86ca14abe3839 100644
--- a/src/ppc/macro-assembler-ppc.h
+++ b/src/ppc/macro-assembler-ppc.h
@@ -410,6 +410,13 @@ class MacroAssembler : public Assembler {
       FPRoundingMode rounding_mode = kRoundToZero);
 #endif
 
+#if !V8_TARGET_ARCH_PPC64
+  void PairShiftLeft(Register dst_low, Register dst_high, Register src_low,
+                     Register src_high, Register scratch, Register shift);
+  void PairShiftLeft(Register dst_low, Register dst_high, Register src_low,
+                     Register src_high, uint32_t shift);
+#endif
+
   // Generates function and stub prologue code.
   void StubPrologue(Register base = no_reg, int prologue_offset = 0);
   void Prologue(bool code_pre_aging, Register base, int prologue_offset = 0);