id = 1339 title = "RVV vfncvt.rtz.x.f.w Assertion failed" state = "closed" created_at = "2022-11-25T06:14:02.568Z" closed_at = "2023-01-18T04:33:24.825Z" labels = ["accel: TCG", "target: riscv", "workflow::Patch available"] url = "https://gitlab.com/qemu-project/qemu/-/issues/1339" host-os = "Ubuntu 22.04" host-arch = "x86" qemu-version = "7.0.50" guest-os = "n/a" guest-arch = "n/a" description = """when execute ``` vsetvli t0, x0, e16, m1 vfncvt.rtz.x.f.w v0, v4 ``` report error: qemu-riscv64: ../target/riscv/translate.c:212: decode_save_opc: Assertion \\`ctx->insn_start != NULL' failed. Segmentation fault (core dumped)""" reproduce = """1. write the code 2. compile 3. excute""" additional = """"""