[mips][wasm] Fix FpRegister size in WasmDebugBreakFrameConstants.

The FpRegister size was miswritten as kSimd128Size like x64, while it
should be kDoubleSize on mips.

Change-Id: Iac4c5687e398a87ec0508fb99042a487c41ddf8c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2110891
Auto-Submit: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Dan Elphick <delphick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66804}

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

@@ -55,7 +55,7 @@ class WasmDebugBreakFrameConstants : public TypedFrameConstants {
   static constexpr int kLastPushedGpRegisterOffset =
       -kFixedFrameSizeFromFp - kNumPushedGpRegisters * kSystemPointerSize;
   static constexpr int kLastPushedFpRegisterOffset =
-      kLastPushedGpRegisterOffset - kNumPushedFpRegisters * kSimd128Size;
+      kLastPushedGpRegisterOffset - kNumPushedFpRegisters * kDoubleSize;
 
   // Offsets are fp-relative.
   static int GetPushedGpRegisterOffset(int reg_code) {
@@ -69,7 +69,7 @@ class WasmDebugBreakFrameConstants : public TypedFrameConstants {
     DCHECK_NE(0, kPushedFpRegs & (1 << reg_code));
     uint32_t lower_regs = kPushedFpRegs & ((uint32_t{1} << reg_code) - 1);
     return kLastPushedFpRegisterOffset +
-           base::bits::CountPopulation(lower_regs) * kSimd128Size;
+           base::bits::CountPopulation(lower_regs) * kDoubleSize;
   }
 };
 

src/execution/mips64/frame-constants-mips64.h

@@ -51,7 +51,7 @@ class WasmDebugBreakFrameConstants : public TypedFrameConstants {
   static constexpr int kLastPushedGpRegisterOffset =
       -kFixedFrameSizeFromFp - kNumPushedGpRegisters * kSystemPointerSize;
   static constexpr int kLastPushedFpRegisterOffset =
-      kLastPushedGpRegisterOffset - kNumPushedFpRegisters * kSimd128Size;
+      kLastPushedGpRegisterOffset - kNumPushedFpRegisters * kDoubleSize;
 
   // Offsets are fp-relative.
   static int GetPushedGpRegisterOffset(int reg_code) {
@@ -65,7 +65,7 @@ class WasmDebugBreakFrameConstants : public TypedFrameConstants {
     DCHECK_NE(0, kPushedFpRegs & (1 << reg_code));
     uint32_t lower_regs = kPushedFpRegs & ((uint32_t{1} << reg_code) - 1);
     return kLastPushedFpRegisterOffset +
-           base::bits::CountPopulation(lower_regs) * kSimd128Size;
+           base::bits::CountPopulation(lower_regs) * kDoubleSize;
   }
 };