https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117669
Bug ID: 117669
Summary: RISC-V:The 'VEEWTRUNC4' iterator 'RVVMF2BF' type
condition error
Product: gcc
Version: 14.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: sundongya at nucleisys dot com
Target Milestone: ---
Hi,
While studying the bf16 type within the RISC-V related code, I noticed a
potential discrepancy in the vector-iterators.md file, specifically within the
"VEEWTRUNC4" iterator concerning the condition for "RVVMF2BF". The existing
code is as follows:
(RVVM2BF "TARGET_VECTOR_ELEN_BF_16")
(RVVM1BF "TARGET_VECTOR_ELEN_BF_16")
(RVVMF2BF "TARGET_VECTOR_ELEN_FP_16")
(RVVMF4BF "TARGET_VECTOR_ELEN_BF_16 && TARGET_MIN_VLEN > 32 && TARGET_64BIT")
It seems that the constraint for RVVMF2BF should ideally be
"TARGET_VECTOR_ELEN_BF_16". I hope this observation can be of some help in
enhancing the accuracy of our code.
