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101 Commits

Author SHA1 Message Date
Alex Crichton
dbdcd66e35 Revert "Conversion from a wider to a narrower IEEE-754 floating-point type" 
This reverts commit baab4fd89cdd945e46fed31166e5dcad7224ed87.
 2018-10-30 10:51:11 -07:00
Paolo Teti
45a42b5b89 Conversion from a wider to a narrower IEEE-754 floating-point type 
Adds generic conversion from a wider to a narrower IEEE-754
floating-point type.

Implement `__truncdfsf2` and `__truncdfsf2vfp` and associated test-cases.
 2018-09-17 19:53:04 +02:00
Alex Crichton
84523d81a1
Merge pull request #259 from paoloteti/cc-rs 
Remove superfluous cc flags
 2018-09-09 10:44:02 -07:00
Paolo Teti
296f04fe63 Remove unused variable target_arch_arm 
Previous commit makes this variable unused
 2018-09-08 19:04:09 +02:00
Paolo Teti
66d52cf01d Remove superfluous cc flags 
Latest `cc-rs` already manage all arm/thumb flags, so We can
safely remove this piece of code.
 2018-09-08 17:41:26 +02:00
Alex Crichton
447bb5391f
Merge pull request #256 from jordanrh1/windows-arm 
Support windows/arm target
 2018-09-07 10:08:01 -07:00
Jordan Rhee
71c5701c58 Remove unnecessary check 2018-09-07 08:27:38 -07:00
Jordan Rhee
19a7eedbf3 Try undoing unnecessary change 2018-09-06 09:27:24 -07:00
Jordan Rhee
6310b74d85 Support windows/arm target 2018-09-06 09:27:24 -07:00
Alex Crichton
38d5777d98 Fix some use_c_shim_if directives 
This was an accidental regression introduced in #252 by removing compilation of
C files without adjusting the `#[use_c_shim_if]` directives. This restores the
compilation of the assembly files and updates the `#[use_c_shim_if]` directives.
 2018-09-04 10:21:06 -07:00
Yu Ding
0e67871a43 Follow up on PR #252 2018-08-06 23:03:37 -07:00
Yu Ding
e3ac57b234 Fix symbol collision caused by floatdisf 
[PR #234](https://github.com/rust-lang-nursery/compiler-builtins/pull/234) added floatdisf implementation in rust and removed floatdisf.c from build.rs. However the removal is in-complete. In x86_64+!msvc environment, the symbol floatdisf would be generated twice. Bugs found in Redox OS issue [#1195](https://gitlab.redox-os.org/redox-os/redox/issues/1195) and Mesalink travis [log](https://travis-ci.org/mesalock-linux/mesalink/jobs/412928048) at line 738. This patch fixes it by removing floatdisf.c from this environment.

Signed-off-by: Yu Ding <dingelish@gmail.com>
 2018-08-06 20:54:48 -07:00
Alex Crichton
33086672fa Don't build multc3 on AArch64 MSVC 
Apparently it doesn't compile due to an odd compiler error! This intrinsic has
to do with complex arithmetic anyway and we shouldn't need it.
 2018-07-16 16:37:57 -07:00
Sébastien Marie
b1b06f583a openbsd: doesn't use static as it could result duplicated symbols 2018-07-16 06:17:38 +02:00
Sébastien Marie
c207fd3869 use system library on openbsd 
compiler_rt is provided by default on OpenBSD, so use it instead of
rebuilding it from source.
 2018-05-12 09:40:51 +02:00
Alex Crichton
6249080093
Merge pull request #234 from ketsuban/master 
Add __floatdisf and __floatundisf intrinsics
 2018-04-05 10:06:16 -05:00
Thomas Winwood
ed6d12ecea
Remove reference to C impl of float[un]disf 2018-04-05 15:03:44 +01:00
Paolo Teti
ad3a5b6826 Remove ledf2vfp.S and lesf2vfp.S from build list 2018-02-25 19:49:31 +01:00
Paolo Teti
63b78c86d9 Fix thumbv6m build (feature=c) 
1. Avoid undefined references as:
   undefined reference to `__modsi3'
   undefined reference to `__umodsi3'

2. We can't remove assembly implementations that are not in the list
 2018-02-16 17:34:01 +01:00
Paolo Teti
b2aea631fe Collection of VFP intrinsics 
Nothing really exciting here. LLVM on hard-float target use native instructions
for all listed VFP intrinsics and so resulting implementation is really trivial.

Implemented intrinsics:

 __gesf2vfp
 __gedf2vfp
 __gtsf2vfp
 __gtdf2vfp
 __ltsf2vfp
 __ltdf2vfp
 __nesf2vfp
 __nedf2vfp
 __eqsf2vfp
 __eqdf2vfp
 __extendsfdf2vfp
 2018-02-11 23:46:56 +01:00
Paolo Teti
4e1ff92946 Set -mfloat-abi=hard not only for thumb targets 2018-02-11 21:23:59 +01:00
Paolo Teti
0af69177f9 Add generic conversion from a narrower to a wider FP type 
Add `extend` module to implement conversion from a narrower to a wider
floating-point type.

This implementation is only intended to support *widening* operations.
Module to convert a *narrower* floating-point will be added in the future.
 2018-02-08 18:20:45 +01:00
Paolo Teti
97e6b3712a Add support for sub*f3vfp and add*f3vfp 
As done before for mul and div let's use extern "C" to generate `"aapcs"`
or `"aapcs-vfp"` depending on target configuration.
 2018-02-04 18:34:31 +01:00
Alex Crichton
41290fe728 Simplify how testing is done 
All tests are moved to a separate crate in this repository to enable features by
default. Additionally the test generation is moved to a seprate build script and
simplified to reduce the amount of boilerplate needed per test.

Overall this should still be testing everything, just in a different location!
 2018-01-31 11:32:20 -08:00
Paolo Teti
4c7de1e315 Fix build errors on arm*-linux-gnueabi 
I removed std::mem, but We need it.
 2018-01-30 23:10:56 +01:00
Paolo Teti
cc3ea0ab93 Add test cases for Mul[s/d]f3vfp and Div[s/d]f3vfp 
for ARM targets only
 2018-01-30 20:15:37 +01:00
Paolo Teti
9a4e458b48 Add support for mul[s/d]f3vfp and div[s/d]f3vfp 
Here using `"C"` the compiler will use `"aapcs"` or `"aapcs-vfp"`
depending on target configuration.

Of course this translates in a call to `__aeabi_fdiv` / `__aeabi_fmul`
on non-HF targets.

On `eabi` targets with +vfpv2/vfpv3 LLVM generate:

   vmov	s0, r1
   vmov	s2, r0
   vdiv.f32	s0, s2, s0
   vmov	r0, s0
   bx	lr

On `eabihf` targets with +vfpv3-d16/d32/f32 +fp-only-sp LLVM generate:

  vdiv.f32	s0, s0, s1
  bx	lr

That's exactly what We need for [div/mul][s/d]f3vfp.S
 2018-01-29 20:49:55 +01:00
Alex Crichton
b751493472 Fix some typos/bugs with float comparison intrinsics 
* I believe `__gtdf2` erroneously used `f32` instead of `f64`
* Most of these needed `#[arm_aeabi_alias]` to ensure they're correctly called
  through the alias
* Some existing aliases were corrected with the right names
 2018-01-24 17:01:04 -08:00
Paolo Teti
c68621f444 Fix build issue and comments 
Fix an unclosed if block
 2018-01-19 19:27:25 +01:00
Paolo Teti
2754f64c18 Skip aeabi_cdcmp and aeabi_cfcmp on big-endian targets 
First of all aeabi_cdcmp and aeabi_cfcmp are never called LLVM.
Second are little-endian only, so build fail on big-endian targets.
Temporally workaround: exclude these files for big-endian targets.
 2018-01-19 09:19:05 +01:00
whitequark
746c4717e1 comparesf2: do not build the assembly versions of intrinsics on ARM. 2018-01-12 21:33:24 +00:00
whitequark
566e7ede90 comparesf2/comparedf2: fix a signedness bug and add tests. 2017-12-29 07:58:34 +00:00
whitequark
a0777758df comparesf2/comparedf2: do not build the C versions of intrinsics. 2017-12-29 06:16:35 +00:00
Marco A L Barbosa
90bd768b20 Use kernel user helpers for armv4t 
Rename armv5te cfg to kernel_user_helpers and enable it for armv4t
 2017-12-26 13:02:05 -02:00
bors
be3b817149 Auto merge of #212 - tamird:fomit-frame-pointer-not-supported-arm, r=alexcrichton 
Avoid warning spew

...when the compiler doesn't support '-fomit-frame-pointer' on the
target architecture.
 2017-11-28 17:31:37 +00:00
Tamir Duberstein
fe9bd52cc1
Avoid warning spew 
...when the compiler doesn't support '-fomit-frame-pointer' on the
target architecture.
 2017-11-27 17:41:54 -05:00
Jan Teske
dd0be67665 Remove mulsf3.c and muldf3.c from compiler-rt. 
mulsf3 and muldf3 have Rust implementations since 8970485. Remove the
C implementations to avoid conflicts.
 2017-11-26 21:53:57 +01:00
Scott McMurray
f468c28f74 Another attempt at making MIPS happy 
(I really don't understand how arithmetic makes it segfault...)
 2017-11-25 07:00:26 -08:00
Scott McMurray
ba376a3912 Autogenerate the add/sub tests 2017-11-25 06:25:19 -08:00
Alex Crichton
7115a910c8 Remove divsf3.c from compiler-rt 
We implement this now!
 2017-11-19 09:08:27 -08:00
Oliver Geller
99ea83e095 Implement divsf3 and divdf3 2017-11-13 20:22:27 -05:00
Oliver Geller
5923e278c3 Implement mulsf3 and muldf3 2017-11-08 17:36:34 -05:00
Alex Crichton
4fc3de624a Prepare this crate for more wasm32 compatibility 
This commit prepares the build script for a wasm32 target that doesn't use
Emcripten, notably forcing the `mem` feature to get activated and forcibly
ignoring the `c` feature, even if activated, for the wasm32 target.
 2017-11-01 19:29:41 -07:00
Amanieu d'Antras
c95fefa9f6 Add atomic support for pre-ARMv6 on Linux 2017-10-05 12:44:12 +01:00
Alex Crichton
46dab7688f Update to the cc dependency 2017-09-22 21:30:12 -07:00
Alex Crichton
0a260ce265 Disable empty intrinsics on i686-apple-darwin 
These all currently just produce empty object files
 2017-09-17 15:25:34 -07:00
Matt Ickstadt
1f98921e44 Implement x86 chkstk in "rust" 2017-09-15 18:04:59 -05:00
Tamir Duberstein
0b2a017b94
Update rustbuild commentary 
Also use `cfg!(feature = "rustbuild")` instead of the environment
variable to ease grep-ability.
 2017-09-12 20:54:32 -04:00
est31
465ba28996 Update the gcc crate to 0.3.53 and disable compilation warnings 
They are inside the compiler-rt submodule, about which we don't have
direct control over.
 2017-09-07 07:49:34 +02:00
Alex Crichton
2fa53c4b67 Don't mangle probes all the time 2017-07-07 20:35:14 -07:00