Import compiler-rt r172839.

This brings in __aeabi_lcmp and __aeabi_ulcmp. It also fixes the spelling
of __aeabi_f2lz. Both changes originated on the arm_eabi project branch.

contrib/compiler-rt/LICENSE.TXT

@@ -14,7 +14,7 @@ Full text of the relevant licenses is included below.
 University of Illinois/NCSA
 Open Source License
 
-Copyright (c) 2009-2012 by the contributors listed in CREDITS.TXT
+Copyright (c) 2009-2013 by the contributors listed in CREDITS.TXT
 
 All rights reserved.
 
@@ -55,7 +55,7 @@ SOFTWARE.
 
 ==============================================================================
 
-Copyright (c) 2009-2012 by the contributors listed in CREDITS.TXT
+Copyright (c) 2009-2013 by the contributors listed in CREDITS.TXT
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

contrib/compiler-rt/lib/arm/divsi3.S

@@ -25,7 +25,16 @@
 // Ok, APCS and AAPCS agree on 32 bit args, so it's safe to use the same routine.
 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_idiv, __divsi3)
 DEFINE_COMPILERRT_FUNCTION(__divsi3)
-    ESTABLISH_FRAME
+#if __ARM_ARCH_7S__
+   tst     r1,r1
+   beq     LOCAL_LABEL(divzero)
+   sdiv    r0, r0, r1
+   bx      lr
+LOCAL_LABEL(divzero):
+   mov     r0,#0
+   bx      lr
+#else
+ESTABLISH_FRAME
 //  Set aside the sign of the quotient.
     eor     r4,     r0, r1
 //  Take absolute value of a and b via abs(x) = (x^(x >> 31)) - (x >> 31).
@@ -39,3 +48,4 @@ DEFINE_COMPILERRT_FUNCTION(__divsi3)
     eor     r0,     r0, r4, asr #31
     sub     r0,     r0, r4, asr #31
     CLEAR_FRAME_AND_RETURN
+#endif

contrib/compiler-rt/lib/arm/udivsi3.S

@@ -33,6 +33,15 @@
 // Ok, APCS and AAPCS agree on 32 bit args, so it's safe to use the same routine.
 DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_uidiv, __udivsi3)
 DEFINE_COMPILERRT_FUNCTION(__udivsi3)
+#if __ARM_ARCH_7S__
+	tst	r1,r1
+	beq	LOCAL_LABEL(divzero)
+	udiv	r0, r0, r1
+	bx  	lr
+	LOCAL_LABEL(divzero):
+	mov	r0,#0
+	bx	lr
+#else
 //  We use a simple digit by digit algorithm; before we get into the actual 
 //  divide loop, we must calculate the left-shift amount necessary to align
 //  the MSB of the divisor with that of the dividend (If this shift is
@@ -78,3 +87,4 @@ LOCAL_LABEL(return):
 //  Move the quotient to r0 and return.
     mov     r0,     q
     CLEAR_FRAME_AND_RETURN
+#endif

contrib/compiler-rt/lib/cmpdi2.c

@@ -36,3 +36,16 @@ __cmpdi2(di_int a, di_int b)
         return 2;
     return 1;
 }
+
+#ifdef __ARM_EABI__
+/* Returns: if (a <  b) returns -1
+*           if (a == b) returns  0
+*           if (a >  b) returns  1
+*/
+COMPILER_RT_ABI si_int
+__aeabi_lcmp(di_int a, di_int b)
+{
+	return __cmpdi2(a, b) - 1;
+}
+#endif
+

contrib/compiler-rt/lib/fixsfdi.c

@@ -23,7 +23,7 @@
 
 /* seee eeee emmm mmmm mmmm mmmm mmmm mmmm */
 
-ARM_EABI_FNALIAS(d2lz, fixsfdi)
+ARM_EABI_FNALIAS(f2lz, fixsfdi)
 
 COMPILER_RT_ABI di_int
 __fixsfdi(float a)

contrib/compiler-rt/lib/int_endianness.h

@@ -31,7 +31,7 @@
 
 /* .. */
 
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) || defined(__minix)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || defined(__minix)
 #include <sys/endian.h>
 
 #if _BYTE_ORDER == _BIG_ENDIAN
@@ -44,6 +44,19 @@
 
 #endif /* *BSD */
 
+#if defined(__OpenBSD__) || defined(__Bitrig__)
+#include <machine/endian.h>
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN    1
+#elif _BYTE_ORDER == _LITTLE_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN    0
+#endif /* _BYTE_ORDER */
+
+#endif /* OpenBSD and Bitrig. */
+
 /* .. */
 
 /* Mac OSX has __BIG_ENDIAN__ or __LITTLE_ENDIAN__ automatically set by the compiler (at least with GCC) */

contrib/compiler-rt/lib/ucmpdi2.c

@@ -36,3 +36,16 @@ __ucmpdi2(du_int a, du_int b)
         return 2;
     return 1;
 }
+
+#ifdef __ARM_EABI__
+/* Returns: if (a <  b) returns -1
+*           if (a == b) returns  0
+*           if (a >  b) returns  1
+*/
+COMPILER_RT_ABI si_int
+__aeabi_ulcmp(di_int a, di_int b)
+{
+	return __ucmpdi2(a, b) - 1;
+}
+#endif
+