ppc: [liftoff] fix f32/f64 constant loading

Change-Id: I65a96957216856d334303968f954c035b355f547
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3097871Reviewed-by: Milad Fa <mfarazma@redhat.com>
Commit-Queue: Junliang Yan <junyan@redhat.com>
Cr-Commit-Position: refs/heads/master@{#76315}

src/wasm/baseline/ppc/liftoff-assembler-ppc.h

@@ -169,14 +169,14 @@ void LiftoffAssembler::LoadConstant(LiftoffRegister reg, WasmValue value,
     case kF32: {
       UseScratchRegisterScope temps(this);
       Register scratch = temps.Acquire();
-      mov(scratch, Operand(value.to_f32_boxed().get_scalar()));
+      mov(scratch, Operand(value.to_f32_boxed().get_bits()));
       MovIntToFloat(reg.fp(), scratch, ip);
       break;
     }
     case kF64: {
       UseScratchRegisterScope temps(this);
       Register scratch = temps.Acquire();
-      mov(scratch, Operand(value.to_f64_boxed().get_scalar()));
+      mov(scratch, Operand(value.to_f64_boxed().get_bits()));
       MovInt64ToDouble(reg.fp(), scratch);
       break;
     }