Index: head/contrib/compiler-rt/lib/builtins/README.txt
===================================================================
--- head/contrib/compiler-rt/lib/builtins/README.txt (revision 316510)
+++ head/contrib/compiler-rt/lib/builtins/README.txt (revision 316511)
@@ -1,345 +1,346 @@
Compiler-RT
================================
This directory and its subdirectories contain source code for the compiler
support routines.
Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.
================================
This is a replacement library for libgcc. Each function is contained
in its own file. Each function has a corresponding unit test under
test/Unit.
A rudimentary script to test each file is in the file called
test/Unit/test.
Here is the specification for this library:
http://gcc.gnu.org/onlinedocs/gccint/Libgcc.html#Libgcc
Here is a synopsis of the contents of this library:
typedef int si_int;
typedef unsigned su_int;
typedef long long di_int;
typedef unsigned long long du_int;
// Integral bit manipulation
di_int __ashldi3(di_int a, si_int b); // a << b
ti_int __ashlti3(ti_int a, si_int b); // a << b
di_int __ashrdi3(di_int a, si_int b); // a >> b arithmetic (sign fill)
ti_int __ashrti3(ti_int a, si_int b); // a >> b arithmetic (sign fill)
di_int __lshrdi3(di_int a, si_int b); // a >> b logical (zero fill)
ti_int __lshrti3(ti_int a, si_int b); // a >> b logical (zero fill)
si_int __clzsi2(si_int a); // count leading zeros
si_int __clzdi2(di_int a); // count leading zeros
si_int __clzti2(ti_int a); // count leading zeros
si_int __ctzsi2(si_int a); // count trailing zeros
si_int __ctzdi2(di_int a); // count trailing zeros
si_int __ctzti2(ti_int a); // count trailing zeros
+si_int __ffssi2(si_int a); // find least significant 1 bit
si_int __ffsdi2(di_int a); // find least significant 1 bit
si_int __ffsti2(ti_int a); // find least significant 1 bit
si_int __paritysi2(si_int a); // bit parity
si_int __paritydi2(di_int a); // bit parity
si_int __parityti2(ti_int a); // bit parity
si_int __popcountsi2(si_int a); // bit population
si_int __popcountdi2(di_int a); // bit population
si_int __popcountti2(ti_int a); // bit population
uint32_t __bswapsi2(uint32_t a); // a byteswapped, arm only
uint64_t __bswapdi2(uint64_t a); // a byteswapped, arm only
// Integral arithmetic
di_int __negdi2 (di_int a); // -a
ti_int __negti2 (ti_int a); // -a
di_int __muldi3 (di_int a, di_int b); // a * b
ti_int __multi3 (ti_int a, ti_int b); // a * b
si_int __divsi3 (si_int a, si_int b); // a / b signed
di_int __divdi3 (di_int a, di_int b); // a / b signed
ti_int __divti3 (ti_int a, ti_int b); // a / b signed
su_int __udivsi3 (su_int n, su_int d); // a / b unsigned
du_int __udivdi3 (du_int a, du_int b); // a / b unsigned
tu_int __udivti3 (tu_int a, tu_int b); // a / b unsigned
si_int __modsi3 (si_int a, si_int b); // a % b signed
di_int __moddi3 (di_int a, di_int b); // a % b signed
ti_int __modti3 (ti_int a, ti_int b); // a % b signed
su_int __umodsi3 (su_int a, su_int b); // a % b unsigned
du_int __umoddi3 (du_int a, du_int b); // a % b unsigned
tu_int __umodti3 (tu_int a, tu_int b); // a % b unsigned
du_int __udivmoddi4(du_int a, du_int b, du_int* rem); // a / b, *rem = a % b unsigned
tu_int __udivmodti4(tu_int a, tu_int b, tu_int* rem); // a / b, *rem = a % b unsigned
su_int __udivmodsi4(su_int a, su_int b, su_int* rem); // a / b, *rem = a % b unsigned
si_int __divmodsi4(si_int a, si_int b, si_int* rem); // a / b, *rem = a % b signed
// Integral arithmetic with trapping overflow
si_int __absvsi2(si_int a); // abs(a)
di_int __absvdi2(di_int a); // abs(a)
ti_int __absvti2(ti_int a); // abs(a)
si_int __negvsi2(si_int a); // -a
di_int __negvdi2(di_int a); // -a
ti_int __negvti2(ti_int a); // -a
si_int __addvsi3(si_int a, si_int b); // a + b
di_int __addvdi3(di_int a, di_int b); // a + b
ti_int __addvti3(ti_int a, ti_int b); // a + b
si_int __subvsi3(si_int a, si_int b); // a - b
di_int __subvdi3(di_int a, di_int b); // a - b
ti_int __subvti3(ti_int a, ti_int b); // a - b
si_int __mulvsi3(si_int a, si_int b); // a * b
di_int __mulvdi3(di_int a, di_int b); // a * b
ti_int __mulvti3(ti_int a, ti_int b); // a * b
// Integral arithmetic which returns if overflow
si_int __mulosi4(si_int a, si_int b, int* overflow); // a * b, overflow set to one if result not in signed range
di_int __mulodi4(di_int a, di_int b, int* overflow); // a * b, overflow set to one if result not in signed range
ti_int __muloti4(ti_int a, ti_int b, int* overflow); // a * b, overflow set to
one if result not in signed range
// Integral comparison: a < b -> 0
// a == b -> 1
// a > b -> 2
si_int __cmpdi2 (di_int a, di_int b);
si_int __cmpti2 (ti_int a, ti_int b);
si_int __ucmpdi2(du_int a, du_int b);
si_int __ucmpti2(tu_int a, tu_int b);
// Integral / floating point conversion
di_int __fixsfdi( float a);
di_int __fixdfdi( double a);
di_int __fixxfdi(long double a);
ti_int __fixsfti( float a);
ti_int __fixdfti( double a);
ti_int __fixxfti(long double a);
uint64_t __fixtfdi(long double input); // ppc only, doesn't match documentation
su_int __fixunssfsi( float a);
su_int __fixunsdfsi( double a);
su_int __fixunsxfsi(long double a);
du_int __fixunssfdi( float a);
du_int __fixunsdfdi( double a);
du_int __fixunsxfdi(long double a);
tu_int __fixunssfti( float a);
tu_int __fixunsdfti( double a);
tu_int __fixunsxfti(long double a);
uint64_t __fixunstfdi(long double input); // ppc only
float __floatdisf(di_int a);
double __floatdidf(di_int a);
long double __floatdixf(di_int a);
long double __floatditf(int64_t a); // ppc only
float __floattisf(ti_int a);
double __floattidf(ti_int a);
long double __floattixf(ti_int a);
float __floatundisf(du_int a);
double __floatundidf(du_int a);
long double __floatundixf(du_int a);
long double __floatunditf(uint64_t a); // ppc only
float __floatuntisf(tu_int a);
double __floatuntidf(tu_int a);
long double __floatuntixf(tu_int a);
// Floating point raised to integer power
float __powisf2( float a, si_int b); // a ^ b
double __powidf2( double a, si_int b); // a ^ b
long double __powixf2(long double a, si_int b); // a ^ b
long double __powitf2(long double a, si_int b); // ppc only, a ^ b
// Complex arithmetic
// (a + ib) * (c + id)
float _Complex __mulsc3( float a, float b, float c, float d);
double _Complex __muldc3(double a, double b, double c, double d);
long double _Complex __mulxc3(long double a, long double b,
long double c, long double d);
long double _Complex __multc3(long double a, long double b,
long double c, long double d); // ppc only
// (a + ib) / (c + id)
float _Complex __divsc3( float a, float b, float c, float d);
double _Complex __divdc3(double a, double b, double c, double d);
long double _Complex __divxc3(long double a, long double b,
long double c, long double d);
long double _Complex __divtc3(long double a, long double b,
long double c, long double d); // ppc only
// Runtime support
// __clear_cache() is used to tell process that new instructions have been
// written to an address range. Necessary on processors that do not have
// a unified instruction and data cache.
void __clear_cache(void* start, void* end);
// __enable_execute_stack() is used with nested functions when a trampoline
// function is written onto the stack and that page range needs to be made
// executable.
void __enable_execute_stack(void* addr);
// __gcc_personality_v0() is normally only called by the system unwinder.
// C code (as opposed to C++) normally does not need a personality function
// because there are no catch clauses or destructors to be run. But there
// is a C language extension __attribute__((cleanup(func))) which marks local
// variables as needing the cleanup function "func" to be run when the
// variable goes out of scope. That includes when an exception is thrown,
// so a personality handler is needed.
_Unwind_Reason_Code __gcc_personality_v0(int version, _Unwind_Action actions,
uint64_t exceptionClass, struct _Unwind_Exception* exceptionObject,
_Unwind_Context_t context);
// for use with some implementations of assert() in <assert.h>
void __eprintf(const char* format, const char* assertion_expression,
const char* line, const char* file);
// for systems with emulated thread local storage
void* __emutls_get_address(struct __emutls_control*);
// Power PC specific functions
// There is no C interface to the saveFP/restFP functions. They are helper
// functions called by the prolog and epilog of functions that need to save
// a number of non-volatile float point registers.
saveFP
restFP
// PowerPC has a standard template for trampoline functions. This function
// generates a custom trampoline function with the specific realFunc
// and localsPtr values.
void __trampoline_setup(uint32_t* trampOnStack, int trampSizeAllocated,
const void* realFunc, void* localsPtr);
// adds two 128-bit double-double precision values ( x + y )
long double __gcc_qadd(long double x, long double y);
// subtracts two 128-bit double-double precision values ( x - y )
long double __gcc_qsub(long double x, long double y);
// multiples two 128-bit double-double precision values ( x * y )
long double __gcc_qmul(long double x, long double y);
// divides two 128-bit double-double precision values ( x / y )
long double __gcc_qdiv(long double a, long double b);
// ARM specific functions
// There is no C interface to the switch* functions. These helper functions
// are only needed by Thumb1 code for efficient switch table generation.
switch16
switch32
switch8
switchu8
// There is no C interface to the *_vfp_d8_d15_regs functions. There are
// called in the prolog and epilog of Thumb1 functions. When the C++ ABI use
// SJLJ for exceptions, each function with a catch clause or destuctors needs
// to save and restore all registers in it prolog and epliog. But there is
// no way to access vector and high float registers from thumb1 code, so the
// compiler must add call outs to these helper functions in the prolog and
// epilog.
restore_vfp_d8_d15_regs
save_vfp_d8_d15_regs
// Note: long ago ARM processors did not have floating point hardware support.
// Floating point was done in software and floating point parameters were
// passed in integer registers. When hardware support was added for floating
// point, new *vfp functions were added to do the same operations but with
// floating point parameters in floating point registers.
// Undocumented functions
float __addsf3vfp(float a, float b); // Appears to return a + b
double __adddf3vfp(double a, double b); // Appears to return a + b
float __divsf3vfp(float a, float b); // Appears to return a / b
double __divdf3vfp(double a, double b); // Appears to return a / b
int __eqsf2vfp(float a, float b); // Appears to return one
// iff a == b and neither is NaN.
int __eqdf2vfp(double a, double b); // Appears to return one
// iff a == b and neither is NaN.
double __extendsfdf2vfp(float a); // Appears to convert from
// float to double.
int __fixdfsivfp(double a); // Appears to convert from
// double to int.
int __fixsfsivfp(float a); // Appears to convert from
// float to int.
unsigned int __fixunssfsivfp(float a); // Appears to convert from
// float to unsigned int.
unsigned int __fixunsdfsivfp(double a); // Appears to convert from
// double to unsigned int.
double __floatsidfvfp(int a); // Appears to convert from
// int to double.
float __floatsisfvfp(int a); // Appears to convert from
// int to float.
double __floatunssidfvfp(unsigned int a); // Appears to convert from
// unisgned int to double.
float __floatunssisfvfp(unsigned int a); // Appears to convert from
// unisgned int to float.
int __gedf2vfp(double a, double b); // Appears to return __gedf2
// (a >= b)
int __gesf2vfp(float a, float b); // Appears to return __gesf2
// (a >= b)
int __gtdf2vfp(double a, double b); // Appears to return __gtdf2
// (a > b)
int __gtsf2vfp(float a, float b); // Appears to return __gtsf2
// (a > b)
int __ledf2vfp(double a, double b); // Appears to return __ledf2
// (a <= b)
int __lesf2vfp(float a, float b); // Appears to return __lesf2
// (a <= b)
int __ltdf2vfp(double a, double b); // Appears to return __ltdf2
// (a < b)
int __ltsf2vfp(float a, float b); // Appears to return __ltsf2
// (a < b)
double __muldf3vfp(double a, double b); // Appears to return a * b
float __mulsf3vfp(float a, float b); // Appears to return a * b
int __nedf2vfp(double a, double b); // Appears to return __nedf2
// (a != b)
double __negdf2vfp(double a); // Appears to return -a
float __negsf2vfp(float a); // Appears to return -a
float __negsf2vfp(float a); // Appears to return -a
double __subdf3vfp(double a, double b); // Appears to return a - b
float __subsf3vfp(float a, float b); // Appears to return a - b
float __truncdfsf2vfp(double a); // Appears to convert from
// double to float.
int __unorddf2vfp(double a, double b); // Appears to return __unorddf2
int __unordsf2vfp(float a, float b); // Appears to return __unordsf2
Preconditions are listed for each function at the definition when there are any.
Any preconditions reflect the specification at
http://gcc.gnu.org/onlinedocs/gccint/Libgcc.html#Libgcc.
Assumptions are listed in "int_lib.h", and in individual files. Where possible
assumptions are checked at compile time.
Index: head/contrib/compiler-rt/lib/builtins/ffssi2.c
===================================================================
--- head/contrib/compiler-rt/lib/builtins/ffssi2.c (nonexistent)
+++ head/contrib/compiler-rt/lib/builtins/ffssi2.c (revision 316511)
@@ -0,0 +1,29 @@
+/* ===-- ffssi2.c - Implement __ffssi2 -------------------------------------===
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ *
+ * This file implements __ffssi2 for the compiler_rt library.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#include "int_lib.h"
+
+/* Returns: the index of the least significant 1-bit in a, or
+ * the value zero if a is zero. The least significant bit is index one.
+ */
+
+COMPILER_RT_ABI si_int
+__ffssi2(si_int a)
+{
+ if (a == 0)
+ {
+ return 0;
+ }
+ return __builtin_ctz(a) + 1;
+}
Property changes on: head/contrib/compiler-rt/lib/builtins/ffssi2.c
___________________________________________________________________
Added: svn:eol-style
## -0,0 +1 ##
+native
\ No newline at end of property
Added: svn:keywords
## -0,0 +1 ##
+FreeBSD=%H
\ No newline at end of property
Added: svn:mime-type
## -0,0 +1 ##
+text/plain
\ No newline at end of property
Index: head/lib/libcompiler_rt/Makefile.inc
===================================================================
--- head/lib/libcompiler_rt/Makefile.inc (revision 316510)
+++ head/lib/libcompiler_rt/Makefile.inc (revision 316511)
@@ -1,225 +1,226 @@
# $FreeBSD$
CRTARCH= ${MACHINE_CPUARCH:C/amd64/x86_64/}
CRTSRC= ${SRCTOP}/contrib/compiler-rt/lib/builtins
.PATH: ${CRTSRC}/${CRTARCH}
.PATH: ${CRTSRC}
SRCF+= absvdi2
SRCF+= absvsi2
SRCF+= absvti2
SRCF+= addvdi3
SRCF+= addvsi3
SRCF+= addvti3
SRCF+= apple_versioning
SRCF+= ashldi3
SRCF+= ashlti3
SRCF+= ashrdi3
SRCF+= ashrti3
SRCF+= clear_cache
SRCF+= clzdi2
SRCF+= clzsi2
SRCF+= clzti2
SRCF+= cmpdi2
SRCF+= cmpti2
SRCF+= ctzdi2
SRCF+= ctzsi2
SRCF+= ctzti2
SRCF+= divdc3
SRCF+= divdi3
SRCF+= divmoddi4
SRCF+= divmodsi4
SRCF+= divsc3
SRCF+= divtc3
SRCF+= divti3
SRCF+= divxc3
SRCF+= enable_execute_stack
SRCF+= eprintf
SRCF+= extendhfsf2
+SRCF+= ffssi2
SRCF+= ffsdi2
SRCF+= ffsti2
SRCF+= fixdfdi
SRCF+= fixdfti
SRCF+= fixsfdi
SRCF+= fixsfti
SRCF+= fixunsdfdi
SRCF+= fixunsdfsi
SRCF+= fixunsdfti
SRCF+= fixunssfdi
SRCF+= fixunssfsi
SRCF+= fixunssfti
SRCF+= fixunsxfdi
SRCF+= fixunsxfsi
SRCF+= fixunsxfti
SRCF+= fixxfdi
SRCF+= fixxfti
SRCF+= floatdidf
SRCF+= floatdisf
SRCF+= floatditf
SRCF+= floatdixf
SRCF+= floatsitf
SRCF+= floattidf
SRCF+= floattisf
SRCF+= floattixf
SRCF+= floatundidf
SRCF+= floatundisf
SRCF+= floatunditf
SRCF+= floatundixf
SRCF+= floatunsidf
SRCF+= floatunsisf
SRCF+= floatuntidf
SRCF+= floatuntisf
SRCF+= floatuntixf
SRCF+= gcc_personality_v0
SRCF+= int_util
SRCF+= lshrdi3
SRCF+= lshrti3
SRCF+= moddi3
SRCF+= modti3
SRCF+= muldc3
SRCF+= muldi3
SRCF+= mulodi4
SRCF+= mulosi4
SRCF+= muloti4
SRCF+= mulsc3
SRCF+= multi3
SRCF+= mulvdi3
SRCF+= mulvsi3
SRCF+= mulvti3
SRCF+= multc3
SRCF+= mulxc3
SRCF+= negdf2
SRCF+= negdi2
SRCF+= negsf2
SRCF+= negti2
SRCF+= negvdi2
SRCF+= negvsi2
SRCF+= negvti2
SRCF+= paritydi2
SRCF+= paritysi2
SRCF+= parityti2
SRCF+= popcountdi2
SRCF+= popcountsi2
SRCF+= popcountti2
SRCF+= powidf2
SRCF+= powisf2
SRCF+= powitf2
SRCF+= powixf2
SRCF+= subvdi3
SRCF+= subvsi3
SRCF+= subvti3
SRCF+= trampoline_setup
SRCF+= truncdfhf2
SRCF+= truncsfhf2
SRCF+= ucmpdi2
SRCF+= ucmpti2
SRCF+= udivdi3
SRCF+= udivmoddi4
SRCF+= udivmodsi4
SRCF+= udivmodti4
SRCF+= udivti3
SRCF+= umoddi3
SRCF+= umodti3
# __cpu_model support, only used on x86
.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
SRCF+= cpu_model
.endif
#
# 128-bit quad precision long double support,
# only used on some architectures.
#
.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "riscv"
SRCF+= addtf3
SRCF+= comparetf2
SRCF+= divtf3
SRCF+= extenddftf2
SRCF+= extendsftf2
SRCF+= fixtfdi
SRCF+= fixtfsi
SRCF+= fixtfti
SRCF+= fixunstfdi
SRCF+= fixunstfsi
SRCF+= fixunstfti
SRCF+= floatunsitf
SRCF+= multf3
SRCF+= subtf3
SRCF+= trunctfdf2
SRCF+= trunctfsf2
.endif
# These are already shipped by libc.a on some architectures.
.if ${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips" && \
${MACHINE_CPUARCH} != "riscv"
SRCF+= adddf3
SRCF+= addsf3
SRCF+= divdf3
SRCF+= divsf3
SRCF+= extendsfdf2
SRCF+= fixdfsi
SRCF+= fixsfsi
SRCF+= floatsidf
SRCF+= floatsisf
SRCF+= muldf3
SRCF+= mulsf3
SRCF+= subdf3
SRCF+= subsf3
SRCF+= truncdfsf2
.endif
.if ${MACHINE_CPUARCH} != "arm"
SRCF+= comparedf2
SRCF+= comparesf2
.endif
.if ${MACHINE_CPUARCH} != "mips"
SRCF+= divsi3
SRCF+= modsi3
SRCF+= udivsi3
SRCF+= umodsi3
.endif
# FreeBSD-specific atomic intrinsics.
.if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "armv6"
.PATH: ${SRCTOP}/sys/arm/arm
SRCF+= stdatomic
CFLAGS+= -DEMIT_SYNC_ATOMICS
.elif ${MACHINE_CPUARCH} == "mips"
.PATH: ${SRCTOP}/sys/mips/mips
SRCF+= stdatomic
.endif
.for file in ${SRCF}
.if ${MACHINE_ARCH:Marmv6*} && (!defined(CPUTYPE) || ${CPUTYPE:M*soft*} == "") \
&& exists(${CRTSRC}/${CRTARCH}/${file}vfp.S)
SRCS+= ${file}vfp.S
. elif exists(${CRTSRC}/${CRTARCH}/${file}.S)
SRCS+= ${file}.S
. else
SRCS+= ${file}.c
. endif
.endfor
.if ${MACHINE_CPUARCH} == "arm"
SRCS+= aeabi_div0.c
SRCS+= aeabi_idivmod.S
SRCS+= aeabi_ldivmod.S
SRCS+= aeabi_memcmp.S
SRCS+= aeabi_memcpy.S
SRCS+= aeabi_memmove.S
SRCS+= aeabi_memset.S
SRCS+= aeabi_uidivmod.S
SRCS+= aeabi_uldivmod.S
SRCS+= bswapdi2.S
SRCS+= bswapsi2.S
SRCS+= switch16.S
SRCS+= switch32.S
SRCS+= switch8.S
SRCS+= switchu8.S
SRCS+= sync_synchronize.S
.endif