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Author SHA1 Message Date
Amanieu d'Antras
1eb4cc1977 Update libm submodule 2022-08-10 15:24:16 +01:00
Amanieu d'Antras
6fb26c170e
Merge pull request #488 from Demindiro/remove-x86_64-memcmp-c32 2022-08-10 16:19:06 +02:00
David Hoppenbrouwers
a695cf95cf
Remove c32() from x86_64 memcmp 
Fixes https://github.com/rust-lang/compiler-builtins/issues/487
 2022-08-10 11:29:38 +02:00
Amanieu d'Antras
09aca6f001
Merge pull request #486 from nicholasbishop/bishop-uefi-unadjusted-win64-4 2022-08-07 16:38:34 +02:00
Nicholas Bishop
abb6893a85 Enable unadjusted_on_win64 for UEFI in some cases 
The conversion functions from i128/u128 to f32/f64 have the
`unadjusted_on_win64` attribute, but it is disabled starting with
LLVM14. This seems to be the correct thing to do for Win64, but for some
reason x86_64-unknown-uefi is different, despite generally using the
same ABI as Win64.
 2022-08-03 19:16:03 -04:00
Amanieu d'Antras
8a9e33297a Bump to 0.1.78 2022-07-30 01:45:31 +01:00
Amanieu d'Antras
b71753da80
Merge pull request #484 from Alexhuszagh/armv5te 2022-07-30 02:42:08 +02:00
Amanieu d'Antras
a81a868a59
Merge pull request #482 from ankane/gamma 2022-07-30 02:41:21 +02:00
Andrew Kane
d9cd50d32f Update libm 2022-07-29 17:34:06 -07:00
Alex Huszagh
599dcc2c46
Add compiler-rt fallbacks for sync builtins on armv5te-musl. 2022-07-29 16:58:05 -05:00
Amanieu d'Antras
d117ae3ae7
Merge pull request #483 from Alexhuszagh/musl64 2022-07-29 23:14:24 +02:00
Alex Huszagh
de09c87e0b
Add compiler-rt fallback for __trunctfsf2 on mips64-musl. 2022-07-29 15:52:23 -05:00
Andrew Kane
89df6f6bc0 Added tgamma and tgammaf 2022-07-28 16:21:37 -07:00
Amanieu d'Antras
1913181e24 Bump to 0.1.77 2022-07-28 20:58:02 +01:00
Amanieu d'Antras
c22f0d54c4
Merge pull request #474 from Demindiro/x86_64-mem-align-dest 2022-07-28 21:37:48 +02:00
David Hoppenbrouwers
66f22e0931
Remove branches around rep movsb/stosb 
While it is measurably faster for older CPUs, removing them keeps the code
smaller and is likely more beneficial for newer CPUs.
 2022-07-28 18:45:28 +02:00
David Hoppenbrouwers
04c223f0df
Skip rep movsb in copy_backward if possible 
There is currently no measureable performance difference in benchmarks
but it likely will make a difference in real workloads.
 2022-07-28 18:32:57 +02:00
David Hoppenbrouwers
30e0c1f4c2
Use att_syntax for now 2022-07-28 18:32:56 +02:00
David Hoppenbrouwers
897a133869
Remove rep_param_rev 2022-07-28 18:32:56 +02:00
David Hoppenbrouwers
45e2996c96
Fix suboptimal codegen in memset 2022-07-28 18:32:56 +02:00
David Hoppenbrouwers
a977b01090
Align destination in mem* instructions. 
While misaligned reads are generally fast, misaligned writes aren't and
can have severe penalties.
 2022-07-28 18:32:51 +02:00
Amanieu d'Antras
0cc9a7e4a6
Merge pull request #478 from Lokathor/weak-linkage-for-division 2022-07-28 18:14:59 +02:00
Amanieu d'Antras
863ddc5a6f
Merge pull request #475 from nicholasbishop/bishop-fix-uefi-div 2022-07-28 18:14:13 +02:00
Nicholas Bishop
586e2b38ef Enable win64_128bit_abi_hack for x86_64-unknown-uefi 
The `x86_64-unknown-uefi` target is Windows-like [1], and requires the
same altered ABI for some 128-bit integer intrinsics.

See also https://github.com/rust-lang/rust/issues/86494.

[1]: https://github.com/rust-lang/rust/blob/master/compiler/rustc_target/src/spec/x86_64_unknown_uefi.rs
 2022-07-28 11:55:59 -04:00
Lokathor
8568a33255
restrict linkage to platforms using ELF binaries 
on windows and apple (which don't use ELF) we can't apply weak linkage
 2022-07-28 09:42:18 -06:00
Lokathor
1070134a56
Merge pull request #1 from rust-lang/master 
updates from main
 2022-07-28 09:36:02 -06:00
Amanieu d'Antras
fd3bbe49ef
Merge pull request #480 from Ayush1325/uefi-sqrt 2022-07-28 17:34:43 +02:00
Ayush Singh
f2ac36348c
Use all of src/math for UEFI 
This is needed for libtest
 2022-07-28 20:51:44 +05:30
Amanieu d'Antras
888cc6456c
Merge pull request #481 from Amanieu/disable-ppc64 2022-07-28 17:14:47 +02:00
Amanieu d'Antras
6b6db5cc84 Disable some PPC64 tests which are failing due to an LLVM(?) bug 
See https://github.com/rust-lang/rust/issues/99853
 2022-07-28 16:02:04 +01:00
Lokathor
011f92c877
add weak linkage to the ARM AEABI division functions 2022-07-22 17:14:18 -06:00
Amanieu d'Antras
5e48419836 Bump to 0.1.76 2022-06-29 01:08:54 +01:00
Amanieu d'Antras
db6016bee5
Merge pull request #473 from Ayush1325/uefi-std 
Enable mem for UEFI
 2022-06-29 02:08:09 +02:00
Ayush Singh
f6ab9ca9a7
Enable mem for UEFI 
Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>
 2022-06-28 20:16:07 +05:30
Amanieu d'Antras
4d44679eb5 Bump to 0.1.75 2022-06-12 01:19:53 +01:00
Amanieu d'Antras
d14c5a43b7
Merge pull request #471 from Demindiro/x86_64-fix-recursive-memcmp 2022-06-12 02:19:30 +02:00
David Hoppenbrouwers
08f4f4007d
Fix infinite recursion in x86_64 memcmp if SSE2 is not present 
Fixes #470
 2022-06-11 09:20:01 +02:00
Amanieu d'Antras
59214d6862
Merge pull request #469 from betrusted-io/xous-0.1.74 2022-06-10 01:21:32 +02:00
Sean Cross
7cdad114a5 math: compile math functions for Xous 
This adds support for Xous, enabling users to call math functions on
primitives such as `cos()`.

Signed-off-by: Sean Cross <sean@xobs.io>
 2022-06-09 09:12:44 +08:00
Sean Cross
bb0b7d660f build: compile C code for "xous" operating system 
The "xous" operating system is enturely Rust-based, meaning it has no
libc. Therefore, it relies on `compiler-builtins` for all intrinsics.

Unfortunately, there are not yet Rust equivalents for all C functions.
For example, triganometric functions are still missing. In the meantime,
enable C replacements for these functions so that Rust programs compiled
for Xous can call these functions.

Signed-off-by: Sean Cross <sean@xobs.io>
 2022-06-09 08:40:15 +08:00
Amanieu d'Antras
cfc0422a7e Bump to 0.1.74 2022-05-31 17:19:27 +01:00
Amanieu d'Antras
b6107b307d
Merge pull request #467 from Demindiro/memcmp-x86_64 2022-05-31 18:18:47 +02:00
David Hoppenbrouwers
cb63d7d500
Use unchecked_div/rem 2022-05-31 08:20:30 +02:00
David Hoppenbrouwers
b94e93ead8
Slightly optimize main (32b) memcmp loop 
It only seems to save a single instruction at first sight yet the
effects are significant.
 2022-05-28 22:46:16 +02:00
David Hoppenbrouwers
95d2cd5502
Fix rustfmt sillyness 2022-05-28 08:16:46 +02:00
David Hoppenbrouwers
217748f91b
Fix panic not being optimized out. 
I don't know why it isn't being optimized out though, which worries
me.
 2022-05-28 01:24:17 +02:00
David Hoppenbrouwers
2071d05a19
Always inline compare_bytes::cmp 2022-05-28 00:50:05 +02:00
David Hoppenbrouwers
e7a8932e3b
Fix CI, better memcmp tests 2022-05-28 00:10:55 +02:00
David Hoppenbrouwers
d6650678de
Fix formatting 2022-05-27 22:37:54 +02:00
David Hoppenbrouwers
4dbd8387f9
Implement faster memcmp for x86_64 
x86_64 can load unaligned words in a single cache line as fast as
aligned words. Even when crossing cache or page boundaries it is just as
fast to do an unaligned word read instead of multiple byte reads.

Also add a couple more tests & benchmarks.
 2022-05-27 21:58:39 +02:00