On 4/7/25 12:26 AM, Jin Ma wrote:
XThreadVector does not support the vsext/vzext instructions; however,
due to the reuse of RVV optimizations, it may generate these instructions
in certain cases. To prevent the error "Unknown opcode 'th.vsext.vf2',"
we should disable these patterns.
V2:
Change the value of dg-do in the test case from assemble to compile, and
remove the -save-temps option.
gcc/ChangeLog:
* config/riscv/vector.md: Disable vsext/vzext for XTheadVector.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/xtheadvector/vsext.c: New test.
* gcc.target/riscv/rvv/xtheadvector/vzext.c: New test.
OK for the trunk. Thanks!
Also OK if you wanted to backport to gcc-14.
jeff
