Re: [Qemu-devel] [PATCH v4 32/49] tests/tcg/arm: add fcvt test cases for AArch32/64

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

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On 05/17/2018 05:30 PM, Richard Henderson wrote:
> On 05/17/2018 10:47 AM, Alex Bennée wrote:
>> This runs through the usual float to float conversions and crucially
>> also runs with ARM Alternative Half Precision Format.
>>
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> [rth: tweak vcvtb.f16.f32/vctb.f32.f16 code and regen]
>> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
>>
>> ---
>> v4
>>   - add fcvt.ref and check results against it
>>   - fix single_to_half, single_to_double conversions
>>   - properly toggle AHP mode (fpsr->fpcr)
>>   - more values around the AHP margins
>>   - add INF/NAN/SNAN inputs
>>   - build for ARM and AArch64
>>   - fix bug for hex literals
>>   - add float-to-int
>>   - checkpatch fix
>> ---
> 
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

Thanks Richard, I was not very motivated to review each line of the
fcvt.ref files =)

> diff --git a/tests/tcg/arm/Makefile.target b/tests/tcg/arm/Makefile.target
> index 9d2b551732..7bb777f442 100644
> --- a/tests/tcg/arm/Makefile.target
> +++ b/tests/tcg/arm/Makefile.target
> @@ -8,7 +8,9 @@ ARM_SRC=$(SRC_PATH)/tests/tcg/arm
>  # Set search path for all sources
>  VPATH 		+= $(ARM_SRC)
>
> -TESTS += hello-arm test-arm-iwmmxt
> +ARM_TESTS=hello-arm test-arm-iwmmxt
> +
> +TESTS += $(ARM_TESTS) fcvt
>
>  hello-arm: CFLAGS+=-marm -ffreestanding
>  hello-arm: LDFLAGS+=-nostdlib
> @@ -24,3 +26,14 @@ run-test-mmap: test-mmap
>  	$(call quiet-command, $(QEMU) -p 8192 $< 8192 > test-mmap-8192.out,
"TEST", "$< (8k pages) on $(TARGET_NAME)")
>  	$(call quiet-command, $(QEMU) -p 16384 $< 16384 >
test-mmap-16384.out, "TEST", "$< (16k pages) on $(TARGET_NAME)")
>  endif
> +
> +ifeq ($(TARGET_NAME), arm)
> +fcvt: LDFLAGS+=-lm
> +# fcvt: CFLAGS+=-march=armv8.2-a+fp16 -mfpu=neon-fp-armv8

Alex, What is your idea here, enable this later?
Maybe add some TODO comment around..

Except this nit, for both Makefile.target:
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

> +
> +run-fcvt: fcvt
> +	$(call quiet-command, \
> +		$(QEMU) $< > fcvt.out && \
> +		diff -u $(ARM_SRC)/fcvt.ref fcvt.out, \
> +		"TEST", "$< (default) on $(TARGET_NAME)")
> +endif

$ make -j1 run-tcg-tests-aarch64-linux-user
  BUILD   debian9
  BUILD   debian-arm64-cross
  CROSS-BUILD aarch64 guest-tests with docker qemu:debian-arm64-cross
  BUILD   debian9
  BUILD   debian-arm64-cross
  CROSS-BUILD aarch64 guest-tests with docker qemu:debian-arm64-cross
  RUN-TESTS for aarch64
  TEST    test-mmap (default) on aarch64
  TEST    test-mmap (8k pages) on aarch64
  TEST    test-mmap (16k pages) on aarch64
  TEST    test-mmap (32k pages) on aarch64
  TEST    sha1 on aarch64
  TEST    linux-test on aarch64
  TEST    testthread on aarch64
  TEST    fcvt (default) on aarch64
  TEST    sysregs on aarch64

\o/

Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>



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