REQUIRES: aarch64-registered-target, asserts

RUN: llvm-exegesis -mcpu=neoverse-v2 --use-dummy-perf-counters --min-instructions=100 --mode=latency --debug-only=preview-gen-assembly --opcode-name=ADDVv4i16v 2>&1 | FileCheck %s -check-prefix=PREVIEW

PREVIEW: Generated assembly snippet:
PREVIEW-NEXT: ```
PREVIEW:      {{[04]}}: {{.*}}      movi    d{{[0-9]+}}, #0000000000000000
PREVIEW-NEXT: {{[48]}}: {{.*}}      addv    h{{[0-9]+}}, v{{[0-9]+}}.4h
PREVIEW:      ...      ({{[0-9]+}} more instructions)
PREVIEW-NEXT: {{.*}}   addv    h{{[0-9]+}}, v{{[0-9]+}}.4h
PREVIEW:      {{.*}}   ret
PREVIEW-NEXT:```

RUN: llvm-exegesis -mcpu=neoverse-v2 --use-dummy-perf-counters --min-instructions=100 --mode=latency --debug-only=print-gen-assembly  --opcode-name=ADDVv4i16v 2>&1 | FileCheck %s -check-prefix=PRINT
PRINT: Generated assembly snippet:
PRINT-NEXT: ```
PRINT:      {{[04]}}: {{.*}}      movi    d{{[0-9]+}}, #0000000000000000
PRINT-NEXT: {{[48]}}: {{.*}}      addv    h{{[0-9]+}}, v{{[0-9]+}}.4h
PRINT-NEXT: {{.*}}   addv    h{{[0-9]+}}, v{{[0-9]+}}.4h
PRINT:      {{.*}}   ret
PRINT-NEXT:```