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-rw-r--r--iconvdata/8bit-gap.c8
-rw-r--r--iconvdata/8bit-generic.c6
-rw-r--r--iconvdata/ansi_x3.110.c16
-rw-r--r--iconvdata/big5.c13
-rw-r--r--iconvdata/big5hkscs.c13
5 files changed, 32 insertions, 24 deletions
diff --git a/iconvdata/8bit-gap.c b/iconvdata/8bit-gap.c
index c805d5e57c..75493f758f 100644
--- a/iconvdata/8bit-gap.c
+++ b/iconvdata/8bit-gap.c
@@ -48,7 +48,7 @@ struct gap
   {									      \
     uint32_t ch = to_ucs4[*inptr];					      \
 									      \
-    if (HAS_HOLES && ch == L'\0' && *inptr != '\0')			      \
+    if (HAS_HOLES && __builtin_expect (ch, L'\1') == L'\0' && *inptr != '\0') \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
@@ -80,7 +80,7 @@ struct gap
     uint32_t ch = get32 (inptr);					      \
     unsigned char res;							      \
 									      \
-    if (ch >= 0xffff)							      \
+    if (__builtin_expect (ch, 0) >= 0xffff)				      \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
@@ -95,7 +95,7 @@ struct gap
       }									      \
     while (ch > rp->end)						      \
       ++rp;								      \
-    if (ch < rp->start)							      \
+    if (__builtin_expect (ch < rp->start, 0))				      \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
@@ -110,7 +110,7 @@ struct gap
       }									      \
 									      \
     res = from_ucs4[ch + rp->idx];					      \
-    if (ch != 0 && res == '\0')						      \
+    if (__builtin_expect (res, '\1') == '\0' && ch != 0)		      \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
diff --git a/iconvdata/8bit-generic.c b/iconvdata/8bit-generic.c
index 3b6b47abb1..398bd67ba4 100644
--- a/iconvdata/8bit-generic.c
+++ b/iconvdata/8bit-generic.c
@@ -34,7 +34,7 @@
   {									      \
     uint32_t ch = to_ucs4[*inptr];					      \
 									      \
-    if (HAS_HOLES && ch == L'\0' && *inptr != '\0')			      \
+    if (HAS_HOLES && __builtin_expect (ch, L'\1') == L'\0' && *inptr != '\0') \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
@@ -61,8 +61,8 @@
   {									      \
     uint32_t ch = get32 (inptr);					      \
 									      \
-    if (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0])		      \
-	|| (ch != 0 && from_ucs4[ch] == '\0'))				      \
+    if (__builtin_expect (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0]), 0)\
+	|| (__builtin_expect (from_ucs4[ch], '\1') == '\0' && ch != 0))	      \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
diff --git a/iconvdata/ansi_x3.110.c b/iconvdata/ansi_x3.110.c
index 94bd2e620e..bacbfd23ad 100644
--- a/iconvdata/ansi_x3.110.c
+++ b/iconvdata/ansi_x3.110.c
@@ -401,7 +401,7 @@ static const char from_ucs4[][2] =
     uint32_t ch = *inptr;						      \
     int incr;								      \
 									      \
-    if (ch >= 0xc1 && ch <= 0xcf)					      \
+    if (__builtin_expect (ch, 0x00) >= 0xc1 && ch <= 0xcf)		      \
       {									      \
 	/* Composed character.  First test whether the next character	      \
 	   is also available.  */					      \
@@ -416,7 +416,8 @@ static const char from_ucs4[][2] =
 									      \
 	ch2 = inptr[1];							      \
 									      \
-	if (ch2 < 0x20 || ch2 >= 0x80)					      \
+	if (__builtin_expect (ch2, 0x20) < 0x20				      \
+	    || __builtin_expect (ch2, 0x7f) >= 0x80)			      \
 	  {								      \
 	    /* This is illegal.  */					      \
 	    if (! ignore_errors_p ())					      \
@@ -440,7 +441,7 @@ static const char from_ucs4[][2] =
 	incr = 1;							      \
       }									      \
 									      \
-    if (ch == 0 && *inptr != '\0')					      \
+    if (__builtin_expect (ch, 1) == 0 && *inptr != '\0')		      \
       {									      \
 	/* This is an illegal character.  */				      \
 	if (! ignore_errors_p ())					      \
@@ -471,7 +472,8 @@ static const char from_ucs4[][2] =
     uint32_t ch = get32 (inptr);					      \
     const char *cp;							      \
 									      \
-    if (ch >= sizeof (from_ucs4) / sizeof (from_ucs4[0]))		      \
+    if (__builtin_expect (ch, 0)					      \
+	>= sizeof (from_ucs4) / sizeof (from_ucs4[0]))			      \
       {									      \
 	if (ch == 0x2c7)						      \
 	  cp = "\xcf\x20";						      \
@@ -536,7 +538,7 @@ static const char from_ucs4[][2] =
 	    tmp[1] = '\0';						      \
 	    cp = tmp;							      \
 	  }								      \
-	else if (ch == 0x266a)						      \
+	else if (__builtin_expect (ch, 0x266a) == 0x266a)		      \
 	  cp = "\xd5";							      \
 	else								      \
 	  {								      \
@@ -556,7 +558,7 @@ static const char from_ucs4[][2] =
       {									      \
 	cp = from_ucs4[ch];						      \
 									      \
-	if (cp[0] == '\0' && ch != 0)					      \
+	if (__builtin_expect (cp[0], '\1') == '\0' && ch != 0)		      \
 	  {								      \
 	    /* Illegal characters.  */					      \
 	    if (! ignore_errors_p ())					      \
@@ -575,7 +577,7 @@ static const char from_ucs4[][2] =
     /* Now test for a possible second byte and write this if possible.  */    \
     if (cp[1] != '\0')							      \
       {									      \
-	if (NEED_LENGTH_TEST && outptr >= outend)			      \
+	if (NEED_LENGTH_TEST && __builtin_expect (outptr >= outend, 0))	      \
 	  {								      \
 	    /* The result does not fit into the buffer.  */		      \
 	    --outptr;							      \
diff --git a/iconvdata/big5.c b/iconvdata/big5.c
index 0e4ca7464a..363b2506d6 100644
--- a/iconvdata/big5.c
+++ b/iconvdata/big5.c
@@ -8450,7 +8450,8 @@ static const char from_ucs4_tab13[][2] =
 	/* See whether the second byte is in the correct range.  */	      \
 	if (ch2 >= 0x40 && ch2 <= 0x7e)					      \
 	  idx += ch2 - 0x40;						      \
-	else if (ch2 >= 0xa1 && ch2 <= 0xfe)				      \
+	else if (__builtin_expect (ch2, 0xa1) >= 0xa1			      \
+		 && __builtin_expect (ch2, 0xa1) <= 0xfe)		      \
 	  idx += 0x3f + (ch2 - 0xa1);					      \
 	else								      \
 	  {								      \
@@ -8470,7 +8471,7 @@ static const char from_ucs4_tab13[][2] =
 	ch = big5_to_ucs[idx];						      \
 									      \
 	/* Is this character defined?  */				      \
-	if (ch == 0 && *inptr != '\0')					      \
+	if (__builtin_expect (ch, 1) == 0 && *inptr != '\0')		      \
 	  {								      \
 	    /* This is an illegal character.  */			      \
 	    if (! ignore_errors_p ())					      \
@@ -8506,7 +8507,8 @@ static const char from_ucs4_tab13[][2] =
     char buf[2];							      \
     const char *cp;							      \
 									      \
-    if (ch >= sizeof (from_ucs4_tab1) / sizeof (from_ucs4_tab1[0]))	      \
+    if (__builtin_expect (ch, 0)					      \
+	>= sizeof (from_ucs4_tab1) / sizeof (from_ucs4_tab1[0]))	      \
       switch (ch)							      \
 	{								      \
         case 0x2c7 ... 0x2d9:						      \
@@ -8578,7 +8580,7 @@ static const char from_ucs4_tab13[][2] =
     else								      \
       cp = from_ucs4_tab1[ch];						      \
 									      \
-    if (cp[0] == '\0' && ch != 0)					      \
+    if (__builtin_expect (cp[0], '\1') == '\0' && ch != 0)		      \
       {									      \
 	/* Illegal character.  */					      \
 	if (! ignore_errors_p ())					      \
@@ -8592,7 +8594,8 @@ static const char from_ucs4_tab13[][2] =
     else								      \
       {									      \
 	/* See whether there is enough room for the second byte we write.  */ \
-	if (NEED_LENGTH_TEST && cp[1] != '\0' && outptr + 1 >= outend)	      \
+	if (NEED_LENGTH_TEST && __builtin_expect (cp[1], '\1') != '\0'	      \
+	    && __builtin_expect (outptr + 1 >= outend, 0))		      \
 	  {								      \
 	    /* We have not enough room.  */				      \
 	    result = __GCONV_FULL_OUTPUT;				      \
diff --git a/iconvdata/big5hkscs.c b/iconvdata/big5hkscs.c
index 09974d5523..083b077c94 100644
--- a/iconvdata/big5hkscs.c
+++ b/iconvdata/big5hkscs.c
@@ -12604,7 +12604,8 @@ static const char from_ucs4_tab14[][2] =
 	/* See whether the second byte is in the correct range.  */	      \
 	if (ch2 >= 0x40 && ch2 <= 0x7e)					      \
 	  idx += ch2 - 0x40;						      \
-	else if (ch2 >= 0xa1 && ch2 <= 0xfe)				      \
+	else if (__builtin_expect (ch2, 0xa1) >= 0xa1			      \
+		 && __builtin_expect (ch2, 0xa1) <= 0xfe)		      \
 	  idx += 0x3f + (ch2 - 0xa1);					      \
 	else								      \
 	  {								      \
@@ -12624,7 +12625,7 @@ static const char from_ucs4_tab14[][2] =
 	ch = big5_to_ucs[idx];						      \
 									      \
 	/* Is this character defined?  */				      \
-	if (ch == 0 && *inptr != '\0')					      \
+	if (__builtin_expect (ch, 1) == 0 && *inptr != '\0')		      \
 	  {								      \
 	    /* This is an illegal character.  */			      \
 	    if (! ignore_errors_p ())					      \
@@ -12660,7 +12661,8 @@ static const char from_ucs4_tab14[][2] =
     char buf[2];							      \
     const char *cp;							      \
 									      \
-    if (ch >= sizeof (from_ucs4_tab1) / sizeof (from_ucs4_tab1[0]))	      \
+    if (__builtin_expect (ch, 0)					      \
+	>= sizeof (from_ucs4_tab1) / sizeof (from_ucs4_tab1[0]))	      \
       switch (ch)							      \
 	{								      \
         case 0x2c7 ... 0x2d9:						      \
@@ -12735,7 +12737,7 @@ static const char from_ucs4_tab14[][2] =
     else								      \
       cp = from_ucs4_tab1[ch];						      \
 									      \
-    if (cp[0] == '\0' && ch != 0)					      \
+    if (__builtin_expect (cp[0], '\1') == '\0' && ch != 0)		      \
       {									      \
 	/* Illegal character.  */					      \
 	if (! ignore_errors_p ())					      \
@@ -12749,7 +12751,8 @@ static const char from_ucs4_tab14[][2] =
     else								      \
       {									      \
 	/* See whether there is enough room for the second byte we write.  */ \
-	if (NEED_LENGTH_TEST && cp[1] != '\0' && outptr + 1 >= outend)	      \
+	if (NEED_LENGTH_TEST && __builtin_expect (cp[1], '\1') != '\0'	      \
+	    && __builtin_expect (outptr + 1 >= outend, 0))		      \
 	  {								      \
 	    /* We have not enough room.  */				      \
 	    result = __GCONV_FULL_OUTPUT;				      \