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2022-03-12Hexagon (target/hexagon) properly handle NaN in dfmin/dfmax/sfmin/sfmaxTaylor Simpson
The float??_minnum implementation differs from Hexagon for SNaN, it returns NaN, but Hexagon returns the other input. So, we use float??_minimum_number. Test cases added to tests/tcg/hexagon/fpstuff.c Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20220308190410.22355-1-tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2022-03-12Hexagon (target/hexagon) properly handle denorm in arch_sf_recip_commonTaylor Simpson
The arch_sf_recip_common function was calling float32_getexp which adjusts for denorm, but the we actually need the raw exponent bits. This function is called from 3 instructions sfrecipa sffixupn sffixupd Test cases added to tests/tcg/hexagon/fpstuff.c Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Message-Id: <20220210021556.9217-6-tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-01Hexagon (target/hexagon) add F2_sfinvsqrtaTaylor Simpson
Rd32,Pe4 = sfinvsqrta(Rs32) Square root approx The helper packs the 2 32-bit results into a 64-bit value, and the fGEN_TCG override unpacks them into the proper results. Test cases in tests/tcg/hexagon/multi_result.c FP exception tests added to tests/tcg/hexagon/fpstuff.c Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1617930474-31979-19-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-01Hexagon (target/hexagon) add F2_sfrecipa instructionTaylor Simpson
Rd32,Pe4 = sfrecipa(Rs32, Rt32) Recripocal approx Test cases in tests/tcg/hexagon/multi_result.c FP exception tests added to tests/tcg/hexagon/fpstuff.c Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1617930474-31979-18-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-05-01Hexagon (target/hexagon) use softfloat for float-to-int conversionsTaylor Simpson
Use the proper return for helpers that convert to unsigned Remove target/hexagon/conv_emu.[ch] Suggested-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1617930474-31979-13-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-02-18Hexagon (tests/tcg/hexagon) TCG tests - floating pointTaylor Simpson
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <1612763186-18161-34-git-send-email-tsimpson@quicinc.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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