Commit Graph

27 Commits

Author SHA1 Message Date
Dimitry Andric
44e86fbdcf Merge ^/head r357662 through r357854. 2020-02-13 12:52:24 +00:00
Warner Losh
f0df5b8f27 Remove sparc64 specific inclusion of bswap32 built-ins. 2020-02-12 06:56:04 +00:00
Dimitry Andric
a92579cfb9 Add internal floating point environment builtins to libcompiler_rt and
libgcc, as these are used in a few other builtin implementations.
2020-01-28 19:07:37 +00:00
Dimitry Andric
8bc12a7e28 Sort libcompiler_rt sources. 2020-01-27 20:12:03 +00:00
Justin Hibbits
7b6b882fe4 [PowerPC] enable atomic.c in compiler_rt and do not check and forces
lock/lock_free decisions in compiled time

Summary:
Enables atomic.c in compiler_rt and forces clang to not emit a call for runtime
decision about lock/lock_free.  At compiling time, if clang can't decide if
atomic operation can be lock free, it emits calls to external functions  like
`__atomic_is_lock_free`, `__c11_atomic_is_lock_free` and
`__atomic_always_lock_free`, postponing decision to a runtime check.  According
to LLVM code documentation, the mechanism exists due to differences between
x86_64 processors that can't be decided at runtime.

On PowerPC and PowerPCSPE (32 bits), we already know in advance it can't be lock
free, so we force the decision at compile time and avoid having to implement it
in an external library.

This patch was made after 32 bit users testing the PowePC32 bit ISO reported
llvm could not be compiled with in-base llvm due to `__atomic_load8` not
implemented.

Submitted by:	alfredo.junior_eldorado.org.br
Reviewed by:	jhibbits, dim

Differential Revision:	https://reviews.freebsd.org/D22549
2019-12-26 23:06:28 +00:00
Dimitry Andric
0b57cec536 Move all sources from the llvm project into contrib/llvm-project.
This uses the new layout of the upstream repository, which was recently
migrated to GitHub, and converted into a "monorepo".  That is, most of
the earlier separate sub-projects with their own branches and tags were
consolidated into one top-level directory, and are now branched and
tagged together.

Updating the vendor area to match this layout is next.
2019-12-20 19:53:05 +00:00
John Baldwin
3487d66820 Define __SOFT_FP__ for riscv64sf to avoid infinite recursion.
Submitted by:	James Clarke <jrtc27@jrtc27.com>
Reviewed by:	imp
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D22660
2019-12-04 20:18:12 +00:00
Dimitry Andric
91baa74420 Update build glue for building compiler-rt. 2019-08-29 20:39:24 +00:00
Ed Maste
ea0a30b145 compiler-rt: enable __bswapsi2/__bswapdi2 for RISC-V
As with other archs the compiler may emit calls to the byte swap routines
under certain conditions.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-08-14 18:41:28 +00:00
Warner Losh
0fd19f4a95 The routines defined in comparedf2 and comparesf2 are defined in libc
for softfloat mips. No need to include them here.
2018-02-02 05:04:43 +00:00
Warner Losh
0b972ac92e Support armv7 builds for userland
Make armv7 as a new MACHINE_ARCH.

Copy all the places we do armv6 and add armv7 as basically an
alias. clang appears to generate code for armv7 by default. armv7 hard
float isn't supported by the the in-tree gcc, so it hasn't been
updated to have a new default.

Support armv7 as a new valid MACHINE_ARCH (and by extension
TARGET_ARCH).

Add armv7 to the universe build.

Differential Revision: https://reviews.freebsd.org/D12010
2017-10-05 23:01:33 +00:00
Dimitry Andric
2b12718be6 Follow-up to r323001: if the actually selected CPUTYPE is capable of
SSE2 instructions, we can use them.

Suggested by:	jkim
PR:		221733
MFC after:	1 week
X-MFC-With:	r323001
2017-08-30 07:05:29 +00:00
Dimitry Andric
e1ca2b88e2 In compiler-rt, a few assembler implementations for i386 floating point
conversion functions use SSE2 instructions, but these are not guarded by
#ifdef __SSE2__, and there is no implementation using general purpose
registers.  For these functions, use the generic C variants instead,
otherwise they will cause SIGILL on older processors.

Reported by:	bsdpr@phoe.frmug.org
PR:		221733
MFC after:	1 week
2017-08-29 21:45:00 +00:00
John Baldwin
04a91333db Include {u,}{div,mod}si3() on mips in libcompiler_rt.
These builtins were listed in the mips-specific Symbol.map for libc but
were not implemented.  Compiling mips with recent clang requires these
symbols.

Sponsored by:	DARPA / AFRL
2017-08-21 17:49:01 +00:00
Warner Losh
b53a8df3aa There is no MACHINE_CPUARCH == armv6, remove redunant check. 2017-08-14 22:38:54 +00:00
Dimitry Andric
d2043ca373 Merge ^/head r320573 through r320970. 2017-07-13 22:01:38 +00:00
Ed Maste
d9ad2b357b compiler_rt: provide bswap buildins on sparc64
Attempting to build sparc64 world with GCC 6.3 previously failed with
zstd_compress.c:(.text+0x8fc): undefined reference to `__bswapsi2'
2017-07-06 13:27:01 +00:00
Dimitry Andric
27c240688c Merge ^/head r318560 through r318657. 2017-05-22 19:28:24 +00:00
Adrian Chadd
66ed774149 [libcompiler-rt] add bswapdi2/bswapsi2
This is required for mips gcc 6.3 userland to build/run.

Reviewed by:	emaste, dim
Approved by:	emaste
Differential Revision:	https://reviews.freebsd.org/D10838
2017-05-21 23:15:32 +00:00
Dimitry Andric
289fa303d6 Merge compiler-rt trunk r300890, and update build glue. 2017-04-22 18:43:15 +00:00
John Baldwin
813b8a9e89 Add an implementation of __ffssi2() derived from __ffsdi2().
Newer versions of GCC include an __ffssi2() symbol in libgcc and the
compiler can emit calls to it in generated code.  This is true for at
least GCC 6.2 when compiling world for mips and mips64.

Reviewed by:	jmallett, dim
Sponsored by:	DARPA / AFRL
Differential Revision:	https://reviews.freebsd.org/D10086
2017-04-05 02:40:53 +00:00
Dimitry Andric
67bc8c8b9e Merge ^/head r308491 through r308841. 2016-11-19 16:05:55 +00:00
Ruslan Bukin
7804dd5212 Add full softfloat and hardfloat support for RISC-V.
Hardfloat is now default (use riscv64sf as TARGET_ARCH
for softfloat).

Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D8529
2016-11-16 15:21:32 +00:00
Dimitry Andric
2828dafcf3 Merge ^/head r308227 through r308490. 2016-11-10 22:12:19 +00:00
Ruslan Bukin
2ad1d09f16 o Add support for long double.
o Add support for latest RISC-V GNU toolchain.

Sponsored by:	DARPA, AFRL
Sponsored by:	HEIF5
2016-11-03 13:06:17 +00:00
Ed Maste
335bcabec9 Merge ^/head r306303 through 306411. 2016-09-28 19:29:01 +00:00
Ed Maste
040b30497c libcompiler_rt: move file list to Makefile.inc for reuse elsewhere
Also switch to the style used in the clang390-import branch to reduce
future conflicts.

Reviewed by:	dim
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D8039
2016-09-27 18:55:45 +00:00