Upgrade bundled PCRE to 8.41

HEADSUP! With PCRE 8.39 the JIT related code was changed in the way,
that additional valgrind options became almost unavoidable. Valgrind
had it already sometimes hard with JIT, now there are seem to be more
cases requiring special valgrind options.

For this reason, the new configure option --with-pcre-valgrind was
introduced. The option is development/debugging only and turns on the
Valgrind related pieces in PCRE, so then false positives are avoided
to the big part. In addition, run-tests.php was added a new valgrind
option, when the leak check is enabled and the test filepath contains
pcre.

Thus, to debug the code related to PCRE with JIT enabled, two things
would likely make sense

  - configure --with-pcre-valgrind
  - valgrind option --smc-check=all if run-tests.php is not used

The checks so far reveal no new issues.

1 files changed, 79 insertions, 67 deletions

diff --git a/ext/pcre/pcrelib/sljit/sljitConfigInternal.h b/ext/pcre/pcrelib/sljit/sljitConfigInternal.h
index 16e3547c93..cc0810fbd7 100644
--- a/ext/pcre/pcrelib/sljit/sljitConfigInternal.h
+++ b/ext/pcre/pcrelib/sljit/sljitConfigInternal.h
@@ -1,7 +1,7 @@
 /*
  *    Stack-less Just-In-Time compiler
  *
- *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
+ *    Copyright Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification, are
  * permitted provided that the following conditions are met:
@@ -31,14 +31,14 @@
    SLJIT defines the following architecture dependent types and macros:
 
    Types:
-     sljit_sb, sljit_ub : signed and unsigned 8 bit byte
-     sljit_sh, sljit_uh : signed and unsigned 16 bit half-word (short) type
-     sljit_si, sljit_ui : signed and unsigned 32 bit integer type
-     sljit_sw, sljit_uw : signed and unsigned machine word, enough to store a pointer
-     sljit_p : unsgined pointer value (usually the same as sljit_uw, but
-               some 64 bit ABIs may use 32 bit pointers)
-     sljit_s : single precision floating point value
-     sljit_d : double precision floating point value
+     sljit_s8, sljit_u8   : signed and unsigned 8 bit integer type
+     sljit_s16, sljit_u16 : signed and unsigned 16 bit integer type
+     sljit_s32, sljit_u32 : signed and unsigned 32 bit integer type
+     sljit_sw, sljit_uw   : signed and unsigned machine word, enough to store a pointer
+     sljit_p              : unsgined pointer value (usually the same as sljit_uw, but
+                            some 64 bit ABIs may use 32 bit pointers)
+     sljit_f32            : 32 bit single precision floating point value
+     sljit_f64            : 64 bit double precision floating point value
 
    Macros for feature detection (boolean):
      SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
@@ -56,10 +56,10 @@
      SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS : number of available floating point scratch registers
      SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS : number of available floating point saved registers
      SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_sw/sljit_uw array by index
-     SLJIT_DOUBLE_SHIFT : the shift required to apply when accessing
-                          a double precision floating point array by index
-     SLJIT_SINGLE_SHIFT : the shift required to apply when accessing
-                          a single precision floating point array by index
+     SLJIT_F32_SHIFT : the shift required to apply when accessing
+                       a single precision floating point array by index
+     SLJIT_F64_SHIFT : the shift required to apply when accessing
+                       a double precision floating point array by index
      SLJIT_LOCALS_OFFSET : local space starting offset (SLJIT_SP + SLJIT_LOCALS_OFFSET)
      SLJIT_RETURN_ADDRESS_OFFSET : a return instruction always adds this offset to the return address
 
@@ -187,14 +187,6 @@
 /* External function definitions. */
 /**********************************/
 
-#if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
-
-/* These libraries are needed for the macros below. */
-#include <stdlib.h>
-#include <string.h>
-
-#endif /* SLJIT_STD_MACROS_DEFINED */
-
 /* General macros:
    Note: SLJIT is designed to be independent from them as possible.
 
@@ -210,8 +202,8 @@
 #define SLJIT_FREE(ptr, allocator_data) free(ptr)
 #endif
 
-#ifndef SLJIT_MEMMOVE
-#define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
+#ifndef SLJIT_MEMCPY
+#define SLJIT_MEMCPY(dest, src, len) memcpy(dest, src, len)
 #endif
 
 #ifndef SLJIT_ZEROMEM
@@ -252,11 +244,6 @@
 #endif
 #endif /* !SLJIT_INLINE */
 
-#ifndef SLJIT_CONST
-/* Const variables. */
-#define SLJIT_CONST const
-#endif
-
 #ifndef SLJIT_UNUSED_ARG
 /* Unused arguments. */
 #define SLJIT_UNUSED_ARG(arg) (void)arg
@@ -284,6 +271,15 @@
 /* Instruction cache flush. */
 /****************************/
 
+#if (!defined SLJIT_CACHE_FLUSH && defined __has_builtin)
+#if __has_builtin(__builtin___clear_cache)
+
+#define SLJIT_CACHE_FLUSH(from, to) \
+	__builtin___clear_cache((char*)from, (char*)to)
+
+#endif /* __has_builtin(__builtin___clear_cache) */
+#endif /* (!defined SLJIT_CACHE_FLUSH && defined __has_builtin) */
+
 #ifndef SLJIT_CACHE_FLUSH
 
 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
@@ -300,24 +296,31 @@
 #define SLJIT_CACHE_FLUSH(from, to) \
 	sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
 
-#elif defined __ANDROID__
+#elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
 
-/* Android lacks __clear_cache; instead, cacheflush should be used. */
+/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
+#define SLJIT_CACHE_FLUSH(from, to) \
+	ppc_cache_flush((from), (to))
+#define SLJIT_CACHE_FLUSH_OWN_IMPL 1
+
+#elif (defined(__GNUC__) && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
 
 #define SLJIT_CACHE_FLUSH(from, to) \
-    cacheflush((long)(from), (long)(to), 0)
+	__builtin___clear_cache((char*)from, (char*)to)
 
-#elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
+#elif defined __ANDROID__
+
+/* Android lacks __clear_cache; instead, cacheflush should be used. */
 
-/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
 #define SLJIT_CACHE_FLUSH(from, to) \
-	ppc_cache_flush((from), (to))
+    cacheflush((long)(from), (long)(to), 0)
 
 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 
 /* The __clear_cache() implementation of GCC is a dummy function on Sparc. */
 #define SLJIT_CACHE_FLUSH(from, to) \
 	sparc_cache_flush((from), (to))
+#define SLJIT_CACHE_FLUSH_OWN_IMPL 1
 
 #else
 
@@ -330,20 +333,20 @@
 #endif /* !SLJIT_CACHE_FLUSH */
 
 /******************************************************/
-/* Byte/half/int/word/single/double type definitions. */
+/*    Integer and floating point type definitions.    */
 /******************************************************/
 
 /* 8 bit byte type. */
-typedef unsigned char sljit_ub;
-typedef signed char sljit_sb;
+typedef unsigned char sljit_u8;
+typedef signed char sljit_s8;
 
 /* 16 bit half-word type. */
-typedef unsigned short int sljit_uh;
-typedef signed short int sljit_sh;
+typedef unsigned short int sljit_u16;
+typedef signed short int sljit_s16;
 
 /* 32 bit integer type. */
-typedef unsigned int sljit_ui;
-typedef signed int sljit_si;
+typedef unsigned int sljit_u32;
+typedef signed int sljit_s32;
 
 /* Machine word type. Enough for storing a pointer.
      32 bit for 32 bit machines.
@@ -377,20 +380,22 @@ typedef long int sljit_sw;
 typedef sljit_uw sljit_p;
 
 /* Floating point types. */
-typedef float sljit_s;
-typedef double sljit_d;
+typedef float sljit_f32;
+typedef double sljit_f64;
 
 /* Shift for pointer sized data. */
 #define SLJIT_POINTER_SHIFT SLJIT_WORD_SHIFT
 
 /* Shift for double precision sized data. */
-#define SLJIT_DOUBLE_SHIFT 3
-#define SLJIT_SINGLE_SHIFT 2
+#define SLJIT_F32_SHIFT 2
+#define SLJIT_F64_SHIFT 3
 
 #ifndef SLJIT_W
 
 /* Defining long constants. */
-#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
+#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
+#define SLJIT_W(w)	(w##l)
+#elif (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
 #define SLJIT_W(w)	(w##ll)
 #else
 #define SLJIT_W(w)	(w)
@@ -534,6 +539,14 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
 #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
+
+#if (defined SLJIT_PROT_EXECUTABLE_ALLOCATOR && SLJIT_PROT_EXECUTABLE_ALLOCATOR)
+SLJIT_API_FUNC_ATTRIBUTE sljit_sw sljit_exec_offset(void* ptr);
+#define SLJIT_EXEC_OFFSET(ptr) sljit_exec_offset(ptr)
+#else
+#define SLJIT_EXEC_OFFSET(ptr) 0
+#endif
+
 #endif
 
 /**********************************************/
@@ -542,37 +555,37 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 
 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
 
-#define SLJIT_NUMBER_OF_REGISTERS 10
-#define SLJIT_NUMBER_OF_SAVED_REGISTERS 7
+#define SLJIT_NUMBER_OF_REGISTERS 12
+#define SLJIT_NUMBER_OF_SAVED_REGISTERS 9
 #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
-#define SLJIT_LOCALS_OFFSET_BASE ((2 + 4) * sizeof(sljit_sw))
+#define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset)
 #else
 /* Maximum 3 arguments are passed on the stack, +1 for double alignment. */
-#define SLJIT_LOCALS_OFFSET_BASE ((3 + 1 + 4) * sizeof(sljit_sw))
+#define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset)
 #endif /* SLJIT_X86_32_FASTCALL */
 
 #elif (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
 
 #ifndef _WIN64
-#define SLJIT_NUMBER_OF_REGISTERS 12
+#define SLJIT_NUMBER_OF_REGISTERS 13
 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 6
-#define SLJIT_LOCALS_OFFSET_BASE (sizeof(sljit_sw))
+#define SLJIT_LOCALS_OFFSET_BASE 0
 #else
-#define SLJIT_NUMBER_OF_REGISTERS 12
+#define SLJIT_NUMBER_OF_REGISTERS 13
 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
-#define SLJIT_LOCALS_OFFSET_BASE ((4 + 2) * sizeof(sljit_sw))
+#define SLJIT_LOCALS_OFFSET_BASE (compiler->locals_offset)
 #endif /* _WIN64 */
 
 #elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
 
-#define SLJIT_NUMBER_OF_REGISTERS 11
+#define SLJIT_NUMBER_OF_REGISTERS 12
 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 #define SLJIT_LOCALS_OFFSET_BASE 0
 
 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
 
-#define SLJIT_NUMBER_OF_REGISTERS 11
-#define SLJIT_NUMBER_OF_SAVED_REGISTERS 7
+#define SLJIT_NUMBER_OF_REGISTERS 12
+#define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 #define SLJIT_LOCALS_OFFSET_BASE 0
 
 #elif (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
@@ -596,7 +609,7 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 
 #elif (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
 
-#define SLJIT_NUMBER_OF_REGISTERS 17
+#define SLJIT_NUMBER_OF_REGISTERS 21
 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
 #define SLJIT_LOCALS_OFFSET_BASE (4 * sizeof(sljit_sw))
@@ -652,7 +665,7 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 
 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
 
-#if !defined(SLJIT_ASSERT) || !defined(SLJIT_ASSERT_STOP)
+#if !defined(SLJIT_ASSERT) || !defined(SLJIT_UNREACHABLE)
 
 /* SLJIT_HALT_PROCESS must halt the process. */
 #ifndef SLJIT_HALT_PROCESS
@@ -664,7 +677,7 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 
 #include <stdio.h>
 
-#endif /* !SLJIT_ASSERT || !SLJIT_ASSERT_STOP */
+#endif /* !SLJIT_ASSERT || !SLJIT_UNREACHABLE */
 
 /* Feel free to redefine these two macros. */
 #ifndef SLJIT_ASSERT
@@ -679,34 +692,33 @@ SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 
 #endif /* !SLJIT_ASSERT */
 
-#ifndef SLJIT_ASSERT_STOP
+#ifndef SLJIT_UNREACHABLE
 
-#define SLJIT_ASSERT_STOP() \
+#define SLJIT_UNREACHABLE() \
 	do { \
 		printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
 		SLJIT_HALT_PROCESS(); \
 	} while (0)
 
-#endif /* !SLJIT_ASSERT_STOP */
+#endif /* !SLJIT_UNREACHABLE */
 
 #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
 
 /* Forcing empty, but valid statements. */
 #undef SLJIT_ASSERT
-#undef SLJIT_ASSERT_STOP
+#undef SLJIT_UNREACHABLE
 
 #define SLJIT_ASSERT(x) \
 	do { } while (0)
-#define SLJIT_ASSERT_STOP() \
+#define SLJIT_UNREACHABLE() \
 	do { } while (0)
 
 #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
 
 #ifndef SLJIT_COMPILE_ASSERT
 
-/* Should be improved eventually. */
 #define SLJIT_COMPILE_ASSERT(x, description) \
-	SLJIT_ASSERT(x)
+	switch(0) { case 0: case ((x) ? 1 : 0): break; }
 
 #endif /* !SLJIT_COMPILE_ASSERT */