replace BITS_PER_UNIT with __CHAR_BIT__ in target libs

libgcc/ChangeLog:

2015-11-07  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	* config/visium/lib2funcs.c (__set_trampoline_parity): Use
	__CHAR_BIT__ instead of BITS_PER_UNIT.
	* fixed-bit.h: Likewise.
	* fp-bit.h: Likewise.
	* libgcc2.c (__popcountSI2): Likewise.
	(__popcountDI2): Likewise.
	* libgcc2.h: Likewise.
	* libgcov.h: Likewise.

libobjc/ChangeLog:

2015-11-07  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

	PR libobjc/24775
	* encoding.c (_darwin_rs6000_special_round_type_align): Use
	__CHAR_BIT__ instead of BITS_PER_UNIT.
	(objc_sizeof_type): Likewise.
	(objc_layout_structure): Likewise.
	(objc_layout_structure_next_member): Likewise.
	(objc_layout_finish_structure): Likewise.
	(objc_layout_structure_get_info): Likewise.

git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@229936 138bc75d-0d04-0410-961f-82ee72b054a4

7 files changed, 37 insertions, 26 deletions

diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index cc5f9f28c07..e4fb81bad0b 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,14 @@
+2015-11-07  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
+	* config/visium/lib2funcs.c (__set_trampoline_parity): Use
+	__CHAR_BIT__ instead of BITS_PER_UNIT.
+	* fixed-bit.h: Likewise.
+	* fp-bit.h: Likewise.
+	* libgcc2.c (__popcountSI2): Likewise.
+	(__popcountDI2): Likewise.
+	* libgcc2.h: Likewise.
+	* libgcov.h: Likewise.
+
 2015-11-07  David Edelsohn  <dje.gcc@gmail.com>
 
 	* config/rs6000/atexit.c: New file.
diff --git a/libgcc/config/visium/lib2funcs.c b/libgcc/config/visium/lib2funcs.c
index ba720a36d9e..ed9561f20f1 100644
--- a/libgcc/config/visium/lib2funcs.c
+++ b/libgcc/config/visium/lib2funcs.c
@@ -315,7 +315,7 @@ __set_trampoline_parity (UWtype *addr)
 {
   int i;
 
-  for (i = 0; i < (TRAMPOLINE_SIZE * BITS_PER_UNIT) / W_TYPE_SIZE; i++)
+  for (i = 0; i < (TRAMPOLINE_SIZE * __CHAR_BIT__) / W_TYPE_SIZE; i++)
     addr[i] |= parity_bit (addr[i]);
 }
 #endif
diff --git a/libgcc/fixed-bit.h b/libgcc/fixed-bit.h
index 2efe01d3d36..7f51f7b1111 100644
--- a/libgcc/fixed-bit.h
+++ b/libgcc/fixed-bit.h
@@ -434,7 +434,7 @@ typedef union
 } INTunion;
 #endif
 
-#define FIXED_WIDTH	(FIXED_SIZE * BITS_PER_UNIT) /* in bits.  */
+#define FIXED_WIDTH	(FIXED_SIZE * __CHAR_BIT__) /* in bits.  */
 #define FIXED_C_TYPE1(NAME)	NAME ## type
 #define FIXED_C_TYPE2(NAME)	FIXED_C_TYPE1(NAME)
 #define FIXED_C_TYPE	FIXED_C_TYPE2(MODE_NAME)
@@ -1108,17 +1108,17 @@ extern FIXED_C_TYPE FIXED_USASHL (FIXED_C_TYPE, word_type);
 #if defined (FROM_MODE_NAME_S) && defined (TO_MODE_NAME_S)
 
 #if FROM_TYPE == 1	/* Signed integer.  */
-#define FROM_INT_WIDTH		(FROM_INT_SIZE * BITS_PER_UNIT)
+#define FROM_INT_WIDTH		(FROM_INT_SIZE * __CHAR_BIT__)
 #endif
 
 #if FROM_TYPE == 2	/* Unsigned integer.  */
-#define FROM_INT_WIDTH		(FROM_INT_SIZE * BITS_PER_UNIT)
+#define FROM_INT_WIDTH		(FROM_INT_SIZE * __CHAR_BIT__)
 #endif
 
 #if FROM_TYPE == 4	/* Fixed-point.  */
 #define FROM_FIXED_C_TYPE	FIXED_C_TYPE2(FROM_MODE_NAME)
 #define FROM_FBITS		FBITS2(FROM_MODE_NAME)
-#define FROM_FIXED_WIDTH	(FROM_FIXED_SIZE * BITS_PER_UNIT)
+#define FROM_FIXED_WIDTH	(FROM_FIXED_SIZE * __CHAR_BIT__)
 #define FROM_FBITS		FBITS2(FROM_MODE_NAME)
 #define FROM_IBITS		IBITS2(FROM_MODE_NAME)
 #define FROM_I_F_BITS		(FROM_FBITS + FROM_IBITS)
@@ -1136,7 +1136,7 @@ extern FIXED_C_TYPE FIXED_USASHL (FIXED_C_TYPE, word_type);
 #if TO_TYPE == 4	/* Fixed-point.  */
 #define TO_FIXED_C_TYPE		FIXED_C_TYPE2(TO_MODE_NAME)
 #define TO_FBITS		FBITS2(TO_MODE_NAME)
-#define TO_FIXED_WIDTH		(TO_FIXED_SIZE * BITS_PER_UNIT)
+#define TO_FIXED_WIDTH		(TO_FIXED_SIZE * __CHAR_BIT__)
 #define TO_FBITS		FBITS2(TO_MODE_NAME)
 #define TO_IBITS		IBITS2(TO_MODE_NAME)
 #define TO_I_F_BITS		(TO_FBITS + TO_IBITS)
diff --git a/libgcc/fp-bit.h b/libgcc/fp-bit.h
index d844f420fc6..29661be8a31 100644
--- a/libgcc/fp-bit.h
+++ b/libgcc/fp-bit.h
@@ -117,11 +117,11 @@ typedef unsigned int UTItype __attribute__ ((mode (TI)));
 
 #define MAX_USI_INT  (~(USItype)0)
 #define MAX_SI_INT   ((SItype) (MAX_USI_INT >> 1))
-#define BITS_PER_SI  (4 * BITS_PER_UNIT)
+#define BITS_PER_SI  (4 * __CHAR_BIT__)
 #ifdef TMODES
 #define MAX_UDI_INT  (~(UDItype)0)
 #define MAX_DI_INT   ((DItype) (MAX_UDI_INT >> 1))
-#define BITS_PER_DI  (8 * BITS_PER_UNIT)
+#define BITS_PER_DI  (8 * __CHAR_BIT__)
 #endif
 
 #ifdef FLOAT_ONLY
diff --git a/libgcc/libgcc2.c b/libgcc/libgcc2.c
index c7376206d64..90dba06ed72 100644
--- a/libgcc/libgcc2.c
+++ b/libgcc/libgcc2.c
@@ -160,7 +160,7 @@ __mulvSI3 (Wtype a, Wtype b)
 }
 #ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC
 #undef WORD_SIZE
-#define WORD_SIZE (sizeof (SItype) * BITS_PER_UNIT)
+#define WORD_SIZE (sizeof (SItype) * __CHAR_BIT__)
 SItype
 __mulvsi3 (SItype a, SItype b)
 {
@@ -820,16 +820,16 @@ const UQItype __popcount_tab[256] =
 #endif
 
 #if defined(L_popcountsi2) || defined(L_popcountdi2)
-#define POPCOUNTCST2(x) (((UWtype) x << BITS_PER_UNIT) | x)
-#define POPCOUNTCST4(x) (((UWtype) x << (2 * BITS_PER_UNIT)) | x)
-#define POPCOUNTCST8(x) (((UWtype) x << (4 * BITS_PER_UNIT)) | x)
-#if W_TYPE_SIZE == BITS_PER_UNIT
+#define POPCOUNTCST2(x) (((UWtype) x << __CHAR_BIT__) | x)
+#define POPCOUNTCST4(x) (((UWtype) x << (2 * __CHAR_BIT__)) | x)
+#define POPCOUNTCST8(x) (((UWtype) x << (4 * __CHAR_BIT__)) | x)
+#if W_TYPE_SIZE == __CHAR_BIT__
 #define POPCOUNTCST(x) x
-#elif W_TYPE_SIZE == 2 * BITS_PER_UNIT
+#elif W_TYPE_SIZE == 2 * __CHAR_BIT__
 #define POPCOUNTCST(x) POPCOUNTCST2 (x)
-#elif W_TYPE_SIZE == 4 * BITS_PER_UNIT
+#elif W_TYPE_SIZE == 4 * __CHAR_BIT__
 #define POPCOUNTCST(x) POPCOUNTCST4 (POPCOUNTCST2 (x))
-#elif W_TYPE_SIZE == 8 * BITS_PER_UNIT
+#elif W_TYPE_SIZE == 8 * __CHAR_BIT__
 #define POPCOUNTCST(x) POPCOUNTCST8 (POPCOUNTCST4 (POPCOUNTCST2 (x)))
 #endif
 #endif
@@ -842,11 +842,11 @@ __popcountSI2 (UWtype x)
   /* Force table lookup on targets like AVR and RL78 which only
      pretend they have LIBGCC2_UNITS_PER_WORD 4, but actually
      have 1, and other small word targets.  */
-#if __SIZEOF_INT__ > 2 && defined (POPCOUNTCST) && BITS_PER_UNIT == 8
+#if __SIZEOF_INT__ > 2 && defined (POPCOUNTCST) && __CHAR_BIT__ == 8
   x = x - ((x >> 1) & POPCOUNTCST (0x55));
   x = (x & POPCOUNTCST (0x33)) + ((x >> 2) & POPCOUNTCST (0x33));
   x = (x + (x >> 4)) & POPCOUNTCST (0x0F);
-  return (x * POPCOUNTCST (0x01)) >> (W_TYPE_SIZE - BITS_PER_UNIT);
+  return (x * POPCOUNTCST (0x01)) >> (W_TYPE_SIZE - __CHAR_BIT__);
 #else
   int i, ret = 0;
 
@@ -866,7 +866,7 @@ __popcountDI2 (UDWtype x)
   /* Force table lookup on targets like AVR and RL78 which only
      pretend they have LIBGCC2_UNITS_PER_WORD 4, but actually
      have 1, and other small word targets.  */
-#if __SIZEOF_INT__ > 2 && defined (POPCOUNTCST) && BITS_PER_UNIT == 8
+#if __SIZEOF_INT__ > 2 && defined (POPCOUNTCST) && __CHAR_BIT__ == 8
   const DWunion uu = {.ll = x};
   UWtype x1 = uu.s.low, x2 = uu.s.high;
   x1 = x1 - ((x1 >> 1) & POPCOUNTCST (0x55));
@@ -876,7 +876,7 @@ __popcountDI2 (UDWtype x)
   x1 = (x1 + (x1 >> 4)) & POPCOUNTCST (0x0F);
   x2 = (x2 + (x2 >> 4)) & POPCOUNTCST (0x0F);
   x1 += x2;
-  return (x1 * POPCOUNTCST (0x01)) >> (W_TYPE_SIZE - BITS_PER_UNIT);
+  return (x1 * POPCOUNTCST (0x01)) >> (W_TYPE_SIZE - __CHAR_BIT__);
 #else
   int i, ret = 0;
 
diff --git a/libgcc/libgcc2.h b/libgcc/libgcc2.h
index 98bb2742582..d689f3433da 100644
--- a/libgcc/libgcc2.h
+++ b/libgcc/libgcc2.h
@@ -178,7 +178,7 @@ typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
    if it existed.  */
 
 #if LIBGCC2_UNITS_PER_WORD == 8
-#define W_TYPE_SIZE (8 * BITS_PER_UNIT)
+#define W_TYPE_SIZE (8 * __CHAR_BIT__)
 #define Wtype	DItype
 #define UWtype	UDItype
 #define HWtype	DItype
@@ -194,7 +194,7 @@ typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
 #endif
 #define COMPAT_SIMODE_TRAPPING_ARITHMETIC
 #elif LIBGCC2_UNITS_PER_WORD == 4
-#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
+#define W_TYPE_SIZE (4 * __CHAR_BIT__)
 #define Wtype	SItype
 #define UWtype	USItype
 #define HWtype	SItype
@@ -209,7 +209,7 @@ typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
 #define __NDW(a,b)	__ ## a ## di ## b
 #endif
 #elif LIBGCC2_UNITS_PER_WORD == 2
-#define W_TYPE_SIZE (2 * BITS_PER_UNIT)
+#define W_TYPE_SIZE (2 * __CHAR_BIT__)
 #define Wtype	HItype
 #define UWtype	UHItype
 #define HWtype	HItype
@@ -224,7 +224,7 @@ typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__)));
 #define __NDW(a,b)	__ ## a ## si ## b
 #endif
 #else
-#define W_TYPE_SIZE BITS_PER_UNIT
+#define W_TYPE_SIZE __CHAR_BIT__
 #define Wtype	QItype
 #define UWtype  UQItype
 #define HWtype	QItype
diff --git a/libgcc/libgcov.h b/libgcc/libgcov.h
index 5f54907029b..363492ea2ad 100644
--- a/libgcc/libgcov.h
+++ b/libgcc/libgcov.h
@@ -43,7 +43,7 @@
 #include "tm.h"
 #include "libgcc_tm.h"
 
-#if BITS_PER_UNIT == 8
+#if __CHAR_BIT__ == 8
 typedef unsigned gcov_unsigned_t __attribute__ ((mode (SI)));
 typedef unsigned gcov_position_t __attribute__ ((mode (SI)));
 #if LONG_LONG_TYPE_SIZE > 32
@@ -54,7 +54,7 @@ typedef signed gcov_type __attribute__ ((mode (SI)));
 typedef unsigned gcov_type_unsigned __attribute__ ((mode (SI)));
 #endif
 #else
-#if BITS_PER_UNIT == 16
+#if __CHAR_BIT__ == 16
 typedef unsigned gcov_unsigned_t __attribute__ ((mode (HI)));
 typedef unsigned gcov_position_t __attribute__ ((mode (HI)));
 #if LONG_LONG_TYPE_SIZE > 32