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AOT call stack optimizations (#3773)

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- Implement TINY / STANDARD frame modes - tiny mode is only able to keep track on the IP
  and func idx, STANDARD mode provides more capabilities (parameters, stack pointer etc.).
- Implement FRAME_PER_FUNCTION / FRAME_PER_CALL modes - frame per function adds
  code at the beginning and at the end of each function for allocating / deallocating stack frame,
  whereas in per-call mode the frame is allocated before each call. The exception is call to
  the imported function, where frame-per-function mode also allocates the stack before the
  `call` instruction (as it can't instrument the imported function).

At the moment TINY + FRAME_PER_FUNCTION is automatically enabled in case GC and perf
profiling are disabled and `values` call stack feature is not requested. In all the other cases
STANDARD + FRAME_PER_CALL is used.

STANDARD + FRAME_PER_FUNCTION and TINY + FRAME_PER_CALL are currently not
implemented but possible, and might be enabled in the future.

ps. https://github.com/bytecodealliance/wasm-micro-runtime/issues/3758
This commit is contained in:
Marcin Kolny
2024-09-10 02:05:23 +01:00
committed by GitHub
parent 0599351262
commit cbc2078898
17 changed files with 590 additions and 85 deletions
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18
core/iwasm/include/aot_comp_option.h
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@ -21,8 +21,24 @@ typedef struct {
/* Enables or disables parameters, locals and stack operands. */
bool values;
/* If enabled, stack frame is generated at the beginning of each
* function (frame-per-function mode). Otherwise, stack frame is
* generated before each call of a function (frame-per-call mode). */
bool frame_per_function;
} AOTCallStackFeatures;
void
aot_call_stack_features_init_default(AOTCallStackFeatures *features);
typedef enum {
AOT_STACK_FRAME_OFF = 0,
/* Use a small stack frame data structure (AOTTinyFrame) */
AOT_STACK_FRAME_TYPE_TINY,
/* Use a regular stack frame data structure (AOTFrame) */
AOT_STACK_FRAME_TYPE_STANDARD,
} AOTStackFrameType;
typedef struct AOTCompOption {
bool is_jit_mode;
bool is_indirect_mode;
@ -38,7 +54,7 @@ typedef struct AOTCompOption {
bool enable_ref_types;
bool enable_gc;
bool enable_aux_stack_check;
bool enable_aux_stack_frame;
AOTStackFrameType aux_stack_frame_type;
AOTCallStackFeatures call_stack_features;
bool enable_perf_profiling;
bool enable_memory_profiling;