45f924ece5
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
13db8bf436
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
73884ae671
Fix __aeabi_fcmple and add test cases
...
`le` in __aeabi_fcmple means `less or equal`
2018-02-04 10:56:02 +01:00
f42b9e0bad
__[mul/div]sf3vfp and __[mul/div]df3vfp only on ARM
2018-01-30 18:48:20 +01:00
8f018562ca
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
7d5fb94560
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
07b446a9ab
comparesf2/comparedf2: fix a signedness bug and add tests.
2017-12-29 07:58:34 +00:00
6adcc9e9cb
comparesf2/comparedf2: use i32 instead of bool for return type.
...
Note that this changes semantics:
pub extern "C" fn __eqsf2(a: f32, b: f32) -> bool {
cmp(a, b).to_le_abi() != 0
}
is not the same as
pub extern "C" fn __eqsf2(a: f32, b: f32) -> i32 {
cmp(a, b).to_le_abi()
}
However, compiler-rt does the latter, so this is actually
an improvement.
2017-12-29 06:14:51 +00:00
f5d86476a8
Implement comparesf2/comparedf2 intrinsics.
2017-12-28 03:45:32 +00:00
8bb30026c7
Implement divsf3 and divdf3
2017-11-13 20:22:27 -05:00
897048543f
Implement mulsf3 and muldf3
2017-11-08 17:36:34 -05:00
c781759498
Partially revert a272d753f5
...
This partially reverts commit "Convert float_to_int! into a function"
2017-09-29 02:20:27 +02:00
a20840262e
Partially revert 482d98318f
...
This partially reverts "Convert int_to_float! to a function".
2017-09-29 02:19:40 +02:00
3efae7f7d9
Convert add! to a function
2017-09-14 17:33:44 +02:00
482d98318f
Convert int_to_float! to a function
2017-09-14 16:32:50 +02:00
ff63f7b80f
Convert float_to_int! into a function
2017-09-14 14:59:32 +02:00
a272d753f5
Don't use the Wrapping wrapper in float addition
...
Inspired by a patch by mattico.
2017-09-14 02:08:28 +02:00
72ed4c8bce
Don't use a macro for pow calculation
2017-09-14 01:59:02 +02:00
8313cec597
Extend the Float trait by some constants and supertraits
2017-09-14 01:57:52 +02:00
2c1d7dccc1
Use the newly added ONE constant in float addition
2017-09-14 00:10:16 +02:00
46cfa05650
Introduce a float_impl! macro to avoid duplication
2017-09-13 22:44:56 +02:00
9bdedec38e
Refactor float builtins to use associated consts
2017-09-13 22:09:52 +02:00
c9a261895e
Refactor int builtins to use associated consts
2017-09-13 22:09:31 +02:00
c138713df1
Avoid memcpy references in unoptimized code
2017-07-22 23:10:30 +02:00
91eaa85902
Don't mangle probes all the time
2017-07-07 20:35:14 -07:00
2147753559
Remove usage of unwrap_or_else
2017-06-23 21:31:54 -07:00
4dac0be751
Don't derive Debug for Sign
2017-06-23 21:11:31 -07:00
b42d267065
Don't compile assembly on x86_64 Windows
...
They've all got the wrong ABI...
2017-06-23 21:09:24 -07:00
7de57cd4f9
Handle aeabi aliasing
...
Objects in compiler-rt may have two symbols, so this makes sure that we don't
bring in those objects by accident by defining the aliases ourselves.
2017-06-23 15:55:11 -07:00
a839d53a02
Deal with floatdidf on x86_64
...
Apparently LLVM will lower this down to just an instruction
2017-06-23 13:28:24 -07:00
5172f8c218
Tweak usage of C shims on MSVC
2017-06-23 12:03:33 -07:00
a16ebb0dcb
Use `nm` to weed out panics
2017-06-23 11:52:22 -07:00
83d63eaa9b
Convert float intrinsics to the `intrinsics!` macro
2017-06-23 11:05:25 -07:00
93fed264c1
Remove executable bit from conv.rs
2017-06-23 10:44:59 -07:00
b2f72e1eb1
remove unused macros
...
to fix warnings
2017-06-01 07:40:50 -05:00
f90792e1bc
Add i128 <-> float conversion functions
2017-05-06 02:22:54 +02:00
144e54d7b0
Rename float conversion macros to something nicer
2017-05-05 23:31:41 +02:00
b8e8c7f693
no_std compatible tester
2017-04-10 14:38:17 -05:00
cc0d8ba2d1
remove the current test suite
2017-04-10 11:14:05 -05:00
109c33ed0a
test out of range condition using f64
...
to avoid imprecision due to rounding to f32
2017-04-08 10:18:19 -05:00
4c556dc9e7
fix quickcheck tests
...
the check! macro syntax has changed
2017-03-06 12:17:41 -05:00
09d2f2f1f5
exclude from tests values out of integer range (and NaN).
2017-03-06 11:56:52 -05:00
d96102d270
implement float/double to (u)int conversion.
2017-03-06 11:56:52 -05:00
293fef5ebe
impl (unsigned/signed) int to single/double precision float conversion based on llvm algorithms.
2017-03-06 11:55:57 -05:00
5bb969d8f5
implement float subtraction
...
as a + (-b)
2017-02-08 10:10:40 -05:00
47b45d1d62
adjust the check! macro to accept AAPCS intrinsics
2017-02-07 23:07:51 -05:00
57085be2ea
ARM: keep some non-aeabi symbols around
...
- multi3: there's no aeabi equivalent
- divmod{s,d}i4: these are directly called by __aeabi_{l,i}divmod
- add{s,d}f3: required by the C sub{s,d}f3 implementation
but make sure they also use the AAPCS calling convention
2017-02-07 14:28:02 -05:00
dfa7b161aa
use AAPCS calling convention on all aeabi intrinsics
...
also, on ARM, inline(always) the actual implementation of the intrinsics so we
end with code like this:
```
00000000 <__aeabi_dadd>:
(implementation here)
```
instead of "trampolines" like this:
```
00000000 <__aeabi_dadd>:
(shuffle registers)
(call __adddf3)
00000000 <__adddf3>:
(implementation here)
```
closes #116
2017-02-07 09:41:26 -05:00
f68475e080
Use better cfg name for arm-linux tests
2016-11-12 15:52:59 -06:00
655f642d3f
Add float quickcheck
2016-11-12 14:55:28 -06:00
Paolo Teti
Alex Crichton
whitequark
Oliver Geller
est31
Tim Neumann
Jorge Aparicio
Jorge Aparicio
Wilfried Chauveau
Matt Ickstadt