| ## A snippet from https://github.com/riscv/riscv-v-spec. |
| |
| # RUN: llvm-mc -triple=riscv64 -filetype=obj --mattr=+experimental-v < %s \ |
| # RUN: | llvm-objdump -d --mattr=+experimental-v - \ |
| # RUN: | FileCheck %s --check-prefix=CHECK-INST |
| |
| loop: |
| vsetvli a3, a0, e16,m4 # vtype = 16-bit integer vectors |
| # CHECK-INST: d7 76 65 00 vsetvli a3, a0, e16,m4 |
| vlh.v v4, (a1) # Get 16b vector |
| # CHECK-INST: 07 d2 05 12 vlh.v v4, (a1) |
| slli t1, a3, 1 # Multiply length by two bytes/element |
| # CHECK-INST: 13 93 16 00 slli t1, a3, 1 |
| add a1, a1, t1 # Bump pointer |
| # CHECK-INST: b3 85 65 00 add a1, a1, t1 |
| vwmul.vx v8, v4, x10 # 32b in <v8--v15> |
| # CHECK-INST: 57 64 45 ee vwmul.vx v8, v4, a0 |
| |
| vsetvli x0, a0, e32,m8 # Operate on 32b values |
| # CHECK-INST: 57 70 b5 00 vsetvli zero, a0, e32,m8 |
| vsrl.vi v8, v8, 3 |
| # CHECK-INST: 57 b4 81 a2 vsrl.vi v8, v8, 3 |
| vsw.v v8, (a2) # Store vector of 32b |
| # CHECK-INST: 27 64 06 02 vsw.v v8, (a2) |
| slli t1, a3, 2 # Multiply length by four bytes/element |
| # CHECK-INST: 13 93 26 00 slli t1, a3, 2 |
| add a2, a2, t1 # Bump pointer |
| # CHECK-INST: 33 06 66 00 add a2, a2, t1 |
| sub a0, a0, a3 # Decrement count |
| # CHECK-INST: 33 05 d5 40 sub a0, a0, a3 |
| bnez a0, loop # Any more? |
| # CHECK-INST: e3 1a 05 fc bnez a0, -44 |
