Re: [PATCH] PR 92846: [ARC] generate signaling FDCMPF for hard float comparisons

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On 1/14/20 3:49 PM, Vineet Gupta wrote:
> On 12/9/19 11:02 AM, Vineet Gupta wrote:
>> ARC gcc generates FDCMP instructions which raises Invalid operation for
>> signaling NaN only. This causes glibc iseqsig() primitives to fail (in
>> the current ongoing glibc port to ARC)
>> So split up the hard float compares into two categories and for unordered
>> compares generate the FDCMPF instruction (vs. FDCMP) which raises exception
>> for either NaNs.
>> With this fix testsuite/gcc.dg/torture/pr52451.c passes for ARC.
>> Also passes 6 additional tests in glibc testsuite (test*iseqsig) and no
>> regressions
> Can this be backported to gcc-9 please ?
> glibc testing uses gcc-9

Never mind, I see that it is present in upstream/releases/gcc-9 !

linux-snps-arc mailing list

[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux