https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119572
Bug ID: 119572
Summary: [15 Regression] Recent change triggers regression on
RISC-V vector test
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: law at gcc dot gnu.org
Target Milestone: ---
This change:
commit 70391e3958db791edea4e877636592de47a785e7
Author: Kyrylo Tkachov <ktkac...@nvidia.com>
Date: Mon Mar 24 01:53:06 2025 -0700
PR middle-end/119442: expr.cc: Fix vec_duplicate into vector boolean modes
In this testcase GCC tries to expand a VNx4BI vector:
vector(4) <signed-boolean:4> _40;
_39 = (<signed-boolean:4>) _24;
_40 = {_39, _39, _39, _39};
[ ... ]
Is triggering this failure on RISC-V:
Tests that now fail, but worked before (1 tests):
unix/-march=rv64gc_zba_zbb_zbs_zicond: gcc:
gcc.target/riscv/rvv/autovec/pr119114.c -O3 -ftree-vectorize execution test
Neither Robin nor I have done any debugging on this, though we have a suspicion
that it's likely a target specific issue, possibly with vsetvl handling.
