[arm64] Fix frame size to account for q registers

In https://crrev.com/c/2645694 we push the full q registers before lazy
compile, but we did not change the fixed frame size to account for the
wider registers being pushed.

This manifested in the frame having data like:

(gdb) x/10xg start.ptr_
0x7f5576ff3eb0: 0x0000000000000000      0x0000336b08202759
0x7f5576ff3ec0: 0x7ff000007f801000      0x0000000000000000
0x7f5576ff3ed0: 0x7ff000007f801001      0x0000000000000000
0x7f5576ff3ee0: 0x7ff000007f801002      0x0000000000000000
0x7f5576ff3ef0: 0x7ff000007f801003      0x0000000000000000

The GC then walks part of this frame, thinking that 0x7ff000007f801003
is a heap object, and then crashes.

Add some static_asserts (similar to builtins-x64) to remind ourselves
that the pushed registers have to match the size in frame constants.

Bug: chromium:1161555,v8:11358
Change-Id: Ic5138cc17ad44ccab9121ca226f9f812afef72c7
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2656857Reviewed-by: Clemens Backes <clemensb@chromium.org>
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Zhi An Ng <zhin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#72439}

src/builtins/arm64/builtins-arm64.cc

@@ -2696,6 +2696,12 @@ void Builtins::Generate_WasmCompileLazy(MacroAssembler* masm) {
         Register::ListOf(x0, x1, x2, x3, x4, x5, x6, x7);
     constexpr RegList fp_regs =
         Register::ListOf(d0, d1, d2, d3, d4, d5, d6, d7);
+    static_assert(WasmCompileLazyFrameConstants::kNumberOfSavedGpParamRegs ==
+                      NumRegs(gp_regs),
+                  "frame size mismatch");
+    static_assert(WasmCompileLazyFrameConstants::kNumberOfSavedFpParamRegs ==
+                      NumRegs(fp_regs),
+                  "frame size mismatch");
     __ PushXRegList(gp_regs);
     __ PushQRegList(fp_regs);
 

src/execution/arm64/frame-constants-arm64.h

@@ -81,7 +81,7 @@ class WasmCompileLazyFrameConstants : public TypedFrameConstants {
       // Header is padded to 16 byte (see {MacroAssembler::EnterFrame}).
       RoundUp<16>(TypedFrameConstants::kFixedFrameSizeFromFp) +
       kNumberOfSavedGpParamRegs * kSystemPointerSize +
-      kNumberOfSavedFpParamRegs * kDoubleSize;
+      kNumberOfSavedFpParamRegs * kSimd128Size;
 };
 
 // Frame constructed by the {WasmDebugBreak} builtin.