diff options
Diffstat (limited to 'deps/v8/src/execution/frame-constants.h')
| -rw-r--r-- | deps/v8/src/execution/frame-constants.h | 36 |
1 files changed, 14 insertions, 22 deletions
diff --git a/deps/v8/src/execution/frame-constants.h b/deps/v8/src/execution/frame-constants.h index 6c037451a2..1c0a1f65f0 100644 --- a/deps/v8/src/execution/frame-constants.h +++ b/deps/v8/src/execution/frame-constants.h @@ -21,18 +21,15 @@ namespace internal { // header, with slot index 2 corresponding to the current function context and 3 // corresponding to the frame marker/JSFunction. // -// If V8_REVERSE_JSARGS is set, then the parameters are reversed in the stack, -// i.e., the first parameter (the receiver) is just above the return address. -// // slot JS frame // +-----------------+-------------------------------- -// -n-1 | parameter 0 | ^ +// -n-1 | parameter n | ^ // |- - - - - - - - -| | -// -n | | Caller +// -n | parameter n-1 | Caller // ... | ... | frame slots -// -2 | parameter n-1 | (slot < 0) +// -2 | parameter 1 | (slot < 0) // |- - - - - - - - -| | -// -1 | parameter n | v +// -1 | parameter 0 | v // -----+-----------------+-------------------------------- // 0 | return addr | ^ ^ // |- - - - - - - - -| | | @@ -59,7 +56,7 @@ class CommonFrameConstants : public AllStatic { // Fixed part of the frame consists of return address, caller fp, // constant pool (if FLAG_enable_embedded_constant_pool), context, and - // function. StandardFrame::IterateExpressions assumes that kLastObjectOffset + // function. CommonFrame::IterateExpressions assumes that kLastObjectOffset // is the last object pointer. static constexpr int kFixedFrameSizeAboveFp = kPCOnStackSize + kFPOnStackSize; static constexpr int kFixedSlotCountAboveFp = @@ -82,13 +79,13 @@ class CommonFrameConstants : public AllStatic { // // slot JS frame // +-----------------+-------------------------------- -// -n-1 | parameter 0 | ^ +// -n-1 | parameter n | ^ // |- - - - - - - - -| | -// -n | | Caller +// -n | parameter n-1 | Caller // ... | ... | frame slots -// -2 | parameter n-1 | (slot < 0) +// -2 | parameter 1 | (slot < 0) // |- - - - - - - - -| | -// -1 | parameter n | v +// -1 | parameter 0 | v // -----+-----------------+-------------------------------- // 0 | return addr | ^ ^ // |- - - - - - - - -| | | @@ -133,13 +130,13 @@ class StandardFrameConstants : public CommonFrameConstants { // // slot JS frame // +-----------------+-------------------------------- -// -n-1 | parameter 0 | ^ +// -n-1 | parameter n | ^ // |- - - - - - - - -| | -// -n | | Caller +// -n | parameter n-1 | Caller // ... | ... | frame slots -// -2 | parameter n-1 | (slot < 0) +// -2 | parameter 1 | (slot < 0) // |- - - - - - - - -| | -// -1 | parameter n | v +// -1 | parameter 0 | v // -----+-----------------+-------------------------------- // 0 | return addr | ^ ^ // |- - - - - - - - -| | | @@ -305,18 +302,13 @@ class InterpreterFrameConstants : public StandardFrameConstants { STANDARD_FRAME_EXTRA_PUSHED_VALUE_OFFSET(1); DEFINE_STANDARD_FRAME_SIZES(2); -#ifdef V8_REVERSE_JSARGS static constexpr int kFirstParamFromFp = StandardFrameConstants::kCallerSPOffset; -#else - static constexpr int kLastParamFromFp = - StandardFrameConstants::kCallerSPOffset; -#endif static constexpr int kRegisterFileFromFp = -kFixedFrameSizeFromFp - kSystemPointerSize; static constexpr int kExpressionsOffset = kRegisterFileFromFp; - // Expression index for {StandardFrame::GetExpressionAddress}. + // Expression index for {JavaScriptFrame::GetExpressionAddress}. static constexpr int kBytecodeArrayExpressionIndex = -2; static constexpr int kBytecodeOffsetExpressionIndex = -1; static constexpr int kRegisterFileExpressionIndex = 0; |