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Re: [RFC PATCH 2/2] tests/tcg/mips64el: Run float tests
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From: |
Philippe Mathieu-Daudé |
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Subject: |
Re: [RFC PATCH 2/2] tests/tcg/mips64el: Run float tests |
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Date: |
Sun, 26 Dec 2021 11:50:13 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 |
On 12/26/21 03:25, Jiaxun Yang wrote:
> 在2021年12月26日十二月 上午12:19，Philippe Mathieu-Daudé写道：
>> Unfortunately this fails:
>>
>> $ make run-tcg-tests-mips64el-linux-user
>> ...
>> Files float_convs.out and tests/tcg/mips64el/float_convs.ref differ
>> --- float_convs.out 2021-12-26 01:03:48.585973637 +0100
>> +++ tests/tcg/mips64el/float_convs.ref 2021-12-26 00:29:35.804465340
>> +0100
>> @@ -1,40 +1,40 @@
>> ### Rounding to nearest
>> -from single: f32(nan:0xffffffff)
>> - to double: f64(nan:0x007ff7ffffffffffff) (INVALID)
>> - to int32: 2147483647 (INVALID)
>> - to int64: 9223372036854775807 (INVALID)
>> - to uint32: 2147483647 (INVALID)
>> - to uint64: 9223372036854775807 (INVALID)
>> make[2]: *** [tests/tcg/multiarch/Makefile.target:32: run-float_convs]
>> Error 1
>>
>> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
>> ---
>> tests/tcg/mips64el/Makefile.target | 2 ++
>> 1 file changed, 2 insertions(+)
>> create mode 100644 tests/tcg/mips64el/Makefile.target
>>
>> diff --git a/tests/tcg/mips64el/Makefile.target
>> b/tests/tcg/mips64el/Makefile.target
>> new file mode 100644
>> index 00000000000..dcb1e9d72ac
>> --- /dev/null
>> +++ b/tests/tcg/mips64el/Makefile.target
>> @@ -0,0 +1,2 @@
>> +float_%: CFLAGS+=-march=loongson3a
>> +float_%: QEMU_OPTS+=-cpu Loongson-3A4000
>
> Hmm, -march=loongson3a assumed legacy NaN while our -cpu Loongson-3A4000
> assumed IEEE 754-2008 style NaN.
>
> I guess switch to Loongson-3A1000 can help?
Nop, exactly the same error.
Also, float_madds fails as:
Files float_madds.out and tests/tcg/mips64el/float_madds.ref differ
--- float_madds.out 2021-12-26 11:49:06.018532269 +0100
+++ tests/tcg/mips64el/float_madds.ref 2021-12-26 01:16:02.269497182 +0100
@@ -1,16 +1,16 @@
### Rounding to nearest
-op : f32(nan:0xffffffff) * f32(nan:0xffbfffff) + f32(-inf:0xff800000)
-res: f32(nan:0x7fbfffff) flags=INVALID (0/0)
-op : f32(nan:0xffbfffff) * f32(-inf:0xff800000) + f32(nan:0xffffffff)
-res: f32(nan:0x7fbfffff) flags=INVALID (0/1)
-op : f32(-inf:0xff800000) * f32(nan:0xffffffff) + f32(nan:0xffbfffff)
-res: f32(nan:0x7fbfffff) flags=INVALID (0/2)
make[2]: *** [tests/tcg/multiarch/Makefile.target:30: run-float_madds]
Error 1