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Merge branch 'feature/likely_unlikely' into 'master'

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Adding likely unlikely macros to hot code paths

Closes IDF-284

See merge request espressif/esp-idf!6368
This commit is contained in:
Angus Gratton 2020-01-10 14:05:07 +08:00
commit bdf6c00154
18 changed files with 94 additions and 35 deletions
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1
components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
View File

@ -28,6 +28,7 @@
#include "esp_nimble_hci.h"
#include "esp_bt.h"
#include "freertos/semphr.h"
#include "esp_compiler.h"
#define NIMBLE_VHCI_TIMEOUT_MS 2000

33
components/esp_common/include/esp_compiler.h Normal file
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@ -0,0 +1,33 @@
// Copyright 2016-2019 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef __ESP_COMPILER_H
#define __ESP_COMPILER_H
/*
* The likely and unlikely macro pairs:
* These macros are useful to place when application
* knows the majority ocurrence of a decision paths,
* placing one of these macros can hint the compiler
* to reorder instructions producing more optimized
* code.
*/
#if (CONFIG_COMPILER_OPTIMIZATION_PERF)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
#else
#define likely(x) (x)
#define unlikely(x) (x)
#endif
#endif

3
components/fatfs/diskio/diskio_rawflash.c
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@ -18,6 +18,7 @@
#include "ff.h"
#include "esp_log.h"
#include "diskio_rawflash.h"
#include "esp_compiler.h"
static const char* TAG = "diskio_rawflash";
@ -40,7 +41,7 @@ DRESULT ff_raw_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
const esp_partition_t* part = ff_raw_handles[pdrv];
assert(part);
esp_err_t err = esp_partition_read(part, sector * SPI_FLASH_SEC_SIZE, buff, count * SPI_FLASH_SEC_SIZE);
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "esp_partition_read failed (0x%x)", err);
return RES_ERROR;
}

5
components/fatfs/diskio/diskio_sdmmc.c
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@ -17,6 +17,7 @@
#include "ff.h"
#include "sdmmc_cmd.h"
#include "esp_log.h"
#include "esp_compiler.h"
static sdmmc_card_t* s_cards[FF_VOLUMES] = { NULL };
@ -37,7 +38,7 @@ DRESULT ff_sdmmc_read (BYTE pdrv, BYTE* buff, DWORD sector, UINT count)
sdmmc_card_t* card = s_cards[pdrv];
assert(card);
esp_err_t err = sdmmc_read_sectors(card, buff, sector, count);
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "sdmmc_read_blocks failed (%d)", err);
return RES_ERROR;
}
@ -49,7 +50,7 @@ DRESULT ff_sdmmc_write (BYTE pdrv, const BYTE* buff, DWORD sector, UINT count)
sdmmc_card_t* card = s_cards[pdrv];
assert(card);
esp_err_t err = sdmmc_write_sectors(card, buff, sector, count);
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "sdmmc_write_blocks failed (%d)", err);
return RES_ERROR;
}

7
components/fatfs/diskio/diskio_wl.c
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@ -19,6 +19,7 @@
#include "esp_log.h"
#include "diskio_wl.h"
#include "wear_levelling.h"
#include "esp_compiler.h"
static const char* TAG = "ff_diskio_spiflash";
@ -43,7 +44,7 @@ DRESULT ff_wl_read (BYTE pdrv, BYTE *buff, DWORD sector, UINT count)
wl_handle_t wl_handle = ff_wl_handles[pdrv];
assert(wl_handle + 1);
esp_err_t err = wl_read(wl_handle, sector * wl_sector_size(wl_handle), buff, count * wl_sector_size(wl_handle));
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "wl_read failed (%d)", err);
return RES_ERROR;
}
@ -56,12 +57,12 @@ DRESULT ff_wl_write (BYTE pdrv, const BYTE *buff, DWORD sector, UINT count)
wl_handle_t wl_handle = ff_wl_handles[pdrv];
assert(wl_handle + 1);
esp_err_t err = wl_erase_range(wl_handle, sector * wl_sector_size(wl_handle), count * wl_sector_size(wl_handle));
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "wl_erase_range failed (%d)", err);
return RES_ERROR;
}
err = wl_write(wl_handle, sector * wl_sector_size(wl_handle), buff, count * wl_sector_size(wl_handle));
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
ESP_LOGE(TAG, "wl_write failed (%d)", err);
return RES_ERROR;
}

2
components/freertos/include/freertos/FreeRTOS.h
View File

@ -94,6 +94,8 @@
#ifdef __cplusplus
extern "C" {
#endif
/* for likely and unlikely */
#include "esp_compiler.h"
/* Application specific configuration options. */
#include "FreeRTOSConfig.h"

4
components/freertos/include/freertos/FreeRTOSConfig.h
View File

@ -126,12 +126,12 @@ int xt_clock_freq(void) __attribute__((deprecated));
#if defined(CONFIG_FREERTOS_ASSERT_DISABLE)
#define configASSERT(a) /* assertions disabled */
#elif defined(CONFIG_FREERTOS_ASSERT_FAIL_PRINT_CONTINUE)
#define configASSERT(a) if (!(a)) { \
#define configASSERT(a) if (unlikely(!(a))) { \
ets_printf("%s:%d (%s)- assert failed!\n", __FILE__, __LINE__, \
__FUNCTION__); \
}
#else /* CONFIG_FREERTOS_ASSERT_FAIL_ABORT */
#define configASSERT(a) if (!(a)) { \
#define configASSERT(a) if (unlikely(!(a))) { \
ets_printf("%s:%d (%s)- assert failed!\n", __FILE__, __LINE__, \
__FUNCTION__); \
abort(); \

3
components/freertos/list.c
View File

@ -72,6 +72,7 @@
#include "FreeRTOS.h"
#include "list.h"
/*-----------------------------------------------------------
* PUBLIC LIST API documented in list.h
*----------------------------------------------------------*/
@ -215,7 +216,7 @@ List_t * const pxList = ( List_t * ) pxItemToRemove->pvContainer;
pxItemToRemove->pxPrevious->pxNext = pxItemToRemove->pxNext;
/* Make sure the index is left pointing to a valid item. */
if( pxList->pxIndex == pxItemToRemove )
if(pxList->pxIndex == pxItemToRemove)
{
pxList->pxIndex = pxItemToRemove->pxPrevious;
}

2
components/freertos/port.c
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@ -90,7 +90,6 @@
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--------------------------------------------------------------------------------
*/
#include <stdlib.h>
#include <string.h>
#include <xtensa/config/core.h>
@ -109,6 +108,7 @@
#include "esp_intr_alloc.h"
#include "esp_log.h"
#include "sdkconfig.h"
#include "esp_compiler.h"
/* Defined in portasm.h */
extern void _frxt_tick_timer_init(void);

10
components/freertos/queue.c
View File

@ -782,7 +782,7 @@ Queue_t * const pxQueue = ( Queue_t * ) xQueue;
mtCOVERAGE_TEST_MARKER();
}
}
else if( xYieldRequired != pdFALSE )
else if(xYieldRequired != pdFALSE)
{
/* This path is a special case that will only get
executed if the task was holding multiple mutexes
@ -815,7 +815,7 @@ Queue_t * const pxQueue = ( Queue_t * ) xQueue;
mtCOVERAGE_TEST_MARKER();
}
}
else if( xYieldRequired != pdFALSE )
else if(xYieldRequired != pdFALSE)
{
/* This path is a special case that will only get
executed if the task was holding multiple mutexes and
@ -868,7 +868,7 @@ Queue_t * const pxQueue = ( Queue_t * ) xQueue;
taskENTER_CRITICAL(&pxQueue->mux);
/* Update the timeout state to see if it has expired yet. */
if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )
if(xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )
{
if( prvIsQueueFull( pxQueue ) != pdFALSE )
{
@ -1573,7 +1573,7 @@ Queue_t * const pxQueue = ( Queue_t * ) xQueue;
taskENTER_CRITICAL(&pxQueue->mux);
/* Update the timeout state to see if it has expired yet. */
if( xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE )
if(xTaskCheckForTimeOut( &xTimeOut, &xTicksToWait ) == pdFALSE)
{
if( prvIsQueueEmpty( pxQueue ) != pdFALSE )
{
@ -1888,7 +1888,7 @@ BaseType_t xReturn = pdFALSE;
}
#endif /* configUSE_MUTEXES */
}
else if( xPosition == queueSEND_TO_BACK )
else if(xPosition == queueSEND_TO_BACK)
{
( void ) memcpy( ( void * ) pxQueue->pcWriteTo, pvItemToQueue, ( size_t ) pxQueue->uxItemSize ); /*lint !e961 !e418 MISRA exception as the casts are only redundant for some ports, plus previous logic ensures a null pointer can only be passed to memcpy() if the copy size is 0. */
pxQueue->pcWriteTo += pxQueue->uxItemSize;

11
components/freertos/tasks.c
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@ -77,6 +77,7 @@ all the API functions to use the MPU wrappers. That should only be done when
task.h is included from an application file. */
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#include "esp_newlib.h"
#include "esp_compiler.h"
/* FreeRTOS includes. */
#include "FreeRTOS.h"
@ -2466,7 +2467,7 @@ BaseType_t xSwitchRequired = pdFALSE;
/* Only allow core 0 increase the tick count in the case of xPortSysTickHandler processing. */
/* And allow core 0 and core 1 to unwind uxPendedTicks during xTaskResumeAll. */
if ( xPortInIsrContext() )
if (xPortInIsrContext())
{
#if ( configUSE_TICK_HOOK == 1 )
vApplicationTickHook();
@ -4187,7 +4188,7 @@ For ESP32 FreeRTOS, vTaskEnterCritical implements both portENTER_CRITICAL and po
{
BaseType_t oldInterruptLevel=0;
BaseType_t schedulerRunning = xSchedulerRunning;
if( schedulerRunning != pdFALSE )
if(schedulerRunning != pdFALSE)
{
//Interrupts may already be disabled (because we're doing this recursively) but we can't get the interrupt level after
//vPortCPUAquireMutex, because it also may mess with interrupts. Get it here first, then later figure out if we're nesting
@ -4200,7 +4201,7 @@ For ESP32 FreeRTOS, vTaskEnterCritical implements both portENTER_CRITICAL and po
vPortCPUAcquireMutexIntsDisabled( mux, portMUX_NO_TIMEOUT );
#endif
if( schedulerRunning != pdFALSE )
if(schedulerRunning != pdFALSE)
{
TCB_t *tcb = pxCurrentTCB[xPortGetCoreID()];
BaseType_t newNesting = tcb->uxCriticalNesting + 1;
@ -4259,11 +4260,11 @@ For ESP32 FreeRTOS, vTaskExitCritical implements both portEXIT_CRITICAL and port
#else
vPortCPUReleaseMutexIntsDisabled( mux );
#endif
if( xSchedulerRunning != pdFALSE )
if(xSchedulerRunning != pdFALSE)
{
TCB_t *tcb = pxCurrentTCB[xPortGetCoreID()];
BaseType_t nesting = tcb->uxCriticalNesting;
if( nesting > 0U )
if(nesting > 0U)
{
nesting--;
tcb->uxCriticalNesting = nesting;

1
components/lwip/port/esp32/freertos/sys_arch.c
View File

@ -40,6 +40,7 @@
#include "arch/sys_arch.h"
#include "lwip/stats.h"
#include "esp_log.h"
#include "esp_compiler.h"
static const char* TAG = "lwip_arch";

7
components/lwip/port/esp32/netif/ethernetif.c
View File

@ -51,6 +51,7 @@
#include "esp_eth.h"
#include "esp_netif.h"
#include "esp_netif_net_stack.h"
#include "esp_compiler.h"
/* Define those to better describe your network interface. */
#define IFNAME0 'e'
@ -133,7 +134,7 @@ static err_t ethernet_low_level_output(struct netif *netif, struct pbuf *p)
pbuf_free(q);
}
/* Check error */
if (ret != ESP_OK) {
if (unlikely(ret != ESP_OK)) {
return ERR_ABRT;
} else {
return ERR_OK;
@ -156,7 +157,7 @@ void ethernetif_input(void *h, void *buffer, size_t len, void *eb)
struct netif *netif = h;
struct pbuf *p;
if (buffer == NULL || !netif_is_up(netif)) {
if (unlikely(buffer == NULL || !netif_is_up(netif))) {
if (buffer) {
ethernet_free_rx_buf_l2(netif, buffer);
}
@ -175,7 +176,7 @@ void ethernetif_input(void *h, void *buffer, size_t len, void *eb)
p->l2_buf = buffer;
#endif
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif) != ERR_OK) {
if (unlikely(netif->input(p, netif) != ERR_OK)) {
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
}

5
components/lwip/port/esp32/netif/wlanif.c
View File

@ -52,6 +52,7 @@
#include "esp_netif.h"
#include "esp_netif_net_stack.h"
#include "esp_compiler.h"
/**
* @brief Free resources allocated in L2 layer
@ -160,7 +161,7 @@ wlanif_input(void *h, void *buffer, size_t len, void* eb)
esp_netif_t *esp_netif = esp_netif_get_handle_from_netif_impl(netif);
struct pbuf *p;
if(!buffer || !netif_is_up(netif)) {
if(unlikely(!buffer || !netif_is_up(netif))) {
if (eb) {
esp_netif_free_rx_buffer(esp_netif, eb);
}
@ -190,7 +191,7 @@ wlanif_input(void *h, void *buffer, size_t len, void* eb)
#endif
/* full packet send to tcpip_thread to process */
if (netif->input(p, netif) != ERR_OK) {
if (unlikely(netif->input(p, netif) != ERR_OK)) {
LWIP_DEBUGF(NETIF_DEBUG, ("ethernetif_input: IP input error\n"));
pbuf_free(p);
}

17
components/newlib/platform_include/assert.h
View File

@ -19,10 +19,23 @@
#pragma once
#include <sdkconfig.h>
#include <stdlib.h>
#include "esp_compiler.h"
#include_next <assert.h>
#if defined(CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_SILENT) && !defined(NDEBUG)
#undef assert
#define assert(__e) ((__e) ? (void)0 : abort())
#undef assert
#define assert(__e) (likely(__e)) ? (void)0 : abort()
#else
/* moved part of toolchain provided assert to there then
* we can tweak the original assert macro to perform likely
* before deliver it to original toolchain implementation
*/
#undef assert
#ifdef NDEBUG
# define assert(__e) ((void)0)
#else
# define assert(__e) (likely(__e) ? (void)0 : __assert_func (__FILE__, __LINE__, \
__ASSERT_FUNC, #__e))
#endif
#endif

13
components/sdmmc/sdmmc_io.c
View File

@ -17,6 +17,7 @@
#include "sdmmc_common.h"
#include "esp_attr.h"
#include "esp_compiler.h"
#define CIS_TUPLE(NAME) (cis_tuple_t) {.code=CISTPL_CODE_##NAME, .name=#NAME, .func=&cis_tuple_func_default, }
@ -235,7 +236,7 @@ esp_err_t sdmmc_io_read_byte(sdmmc_card_t* card, uint32_t function,
uint32_t addr, uint8_t *out_byte)
{
esp_err_t ret = sdmmc_io_rw_direct(card, function, addr, SD_ARG_CMD52_READ, out_byte);
if (ret != ESP_OK) {
if (unlikely(ret != ESP_OK)) {
ESP_LOGE(TAG, "%s: sdmmc_io_rw_direct (read 0x%x) returned 0x%x", __func__, addr, ret);
}
return ret;
@ -247,7 +248,7 @@ esp_err_t sdmmc_io_write_byte(sdmmc_card_t* card, uint32_t function,
uint8_t tmp_byte = in_byte;
esp_err_t ret = sdmmc_io_rw_direct(card, function, addr,
SD_ARG_CMD52_WRITE | SD_ARG_CMD52_EXCHANGE, &tmp_byte);
if (ret != ESP_OK) {
if (unlikely(ret != ESP_OK)) {
ESP_LOGE(TAG, "%s: sdmmc_io_rw_direct (write 0x%x) returned 0x%x", __func__, addr, ret);
return ret;
}
@ -323,7 +324,7 @@ esp_err_t sdmmc_io_read_bytes(sdmmc_card_t* card, uint32_t function,
esp_err_t err = sdmmc_io_rw_extended(card, function, addr,
SD_ARG_CMD53_READ | SD_ARG_CMD53_INCREMENT,
pc_dst, will_transfer);
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
return err;
}
pc_dst += will_transfer;
@ -346,7 +347,7 @@ esp_err_t sdmmc_io_write_bytes(sdmmc_card_t* card, uint32_t function,
esp_err_t err = sdmmc_io_rw_extended(card, function, addr,
SD_ARG_CMD53_WRITE | SD_ARG_CMD53_INCREMENT,
(void*) pc_src, will_transfer);
if (err != ESP_OK) {
if (unlikely(err != ESP_OK)) {
return err;
}
pc_src += will_transfer;
@ -359,7 +360,7 @@ esp_err_t sdmmc_io_write_bytes(sdmmc_card_t* card, uint32_t function,
esp_err_t sdmmc_io_read_blocks(sdmmc_card_t* card, uint32_t function,
uint32_t addr, void* dst, size_t size)
{
if (size % 4 != 0) {
if (unlikely(size % 4 != 0)) {
return ESP_ERR_INVALID_SIZE;
}
return sdmmc_io_rw_extended(card, function, addr,
@ -370,7 +371,7 @@ esp_err_t sdmmc_io_read_blocks(sdmmc_card_t* card, uint32_t function,
esp_err_t sdmmc_io_write_blocks(sdmmc_card_t* card, uint32_t function,
uint32_t addr, const void* src, size_t size)
{
if (size % 4 != 0) {
if (unlikely(size % 4 != 0)) {
return ESP_ERR_INVALID_SIZE;
}
return sdmmc_io_rw_extended(card, function, addr,

4
components/spiffs/spiffs_api.c
View File

@ -35,7 +35,7 @@ s32_t spiffs_api_read(spiffs *fs, uint32_t addr, uint32_t size, uint8_t *dst)
{
esp_err_t err = esp_partition_read(((esp_spiffs_t *)(fs->user_data))->partition,
addr, dst, size);
if (err) {
if (unlikely(err)) {
ESP_LOGE(TAG, "failed to read addr %08x, size %08x, err %d", addr, size, err);
return -1;
}
@ -46,7 +46,7 @@ s32_t spiffs_api_write(spiffs *fs, uint32_t addr, uint32_t size, uint8_t *src)
{
esp_err_t err = esp_partition_write(((esp_spiffs_t *)(fs->user_data))->partition,
addr, src, size);
if (err) {
if (unlikely(err)) {
ESP_LOGE(TAG, "failed to write addr %08x, size %08x, err %d", addr, size, err);
return -1;
}

1
components/spiffs/spiffs_api.h
View File

@ -21,6 +21,7 @@
#include "freertos/semphr.h"
#include "spiffs.h"
#include "esp_vfs.h"
#include "esp_compiler.h"
#ifdef __cplusplus
extern "C" {