1## A snippet from https://github.com/riscv/riscv-v-spec. 2 3# RUN: llvm-mc -triple=riscv64 -filetype=obj --mattr=+v < %s \ 4# RUN: | llvm-objdump -d --mattr=+v - \ 5# RUN: | FileCheck %s --check-prefix=CHECK-INST 6 7loop: 8 vsetvli a3, a0, e16,m4,ta,ma # vtype = 16-bit integer vectors 9# CHECK-INST: 0ca576d7 vsetvli a3, a0, e16, m4, ta, ma 10 vle16.v v4, (a1) # Get 16b vector 11# CHECK-INST: 0205d207 vle16.v v4, (a1) 12 slli t1, a3, 1 # Multiply length by two bytes/element 13# CHECK-INST: 00169313 slli t1, a3, 0x1 14 add a1, a1, t1 # Bump pointer 15# CHECK-INST: 006585b3 add a1, a1, t1 16 vwmul.vx v8, v4, x10 # 32b in <v8--v15> 17# CHECK-INST: ee456457 vwmul.vx v8, v4, a0 18 19 vsetvli x0, a0, e32,m8,ta,ma # Operate on 32b values 20# CHECK-INST: 0d357057 vsetvli zero, a0, e32, m8, ta, ma 21 vsrl.vi v8, v8, 3 22# CHECK-INST: a281b457 vsrl.vi v8, v8, 0x3 23 vse32.v v8, (a2) # Store vector of 32b 24# CHECK-INST: 02066427 vse32.v v8, (a2) 25 slli t1, a3, 2 # Multiply length by four bytes/element 26# CHECK-INST: 00269313 slli t1, a3, 0x2 27 add a2, a2, t1 # Bump pointer 28# CHECK-INST: 00660633 add a2, a2, t1 29 sub a0, a0, a3 # Decrement count 30# CHECK-INST: 40d50533 sub a0, a0, a3 31 bnez a0, loop # Any more? 32# CHECK-INST: fc051ae3 bnez a0, 0x0 33