llvm/test/tools/llvm-exegesis/X86/latency/subprocess-address-annotation.s

   1 # REQUIRES: exegesis-can-measure-latency, x86_64-linux
   2
   3 # RUN: llvm-exegesis -mtriple=x86_64-unknown-unknown -mode=latency -snippets-file=%s -execution-mode=subprocess | FileCheck %s
   4
   5 # Check that the code is loaded in at the expected address.
   6
   7 # LLVM-EXEGESIS-SNIPPET-ADDRESS 20000
   8 # LLVM-EXEGESIS-DEFREG RAX 0
   9 # LLVM-EXEGESIS-DEFREG R14 127
  10 # LLVM-EXEGESIS-DEFREG R15 0
  11 # LLVM-EXEGESIS-DEFREG RDI 0
  12
  13 # Load the instruction pointer and round down to the nearest page as there
  14 # will be some setup code loaded in before this part begins to execute.
  15 lea 0(%rip), %rax
  16 shrq $12, %rax
  17 shlq $12, %rax
  18
  19 cmpq $0x20000, %rax
  20 cmovneq %r14, %r15
  21
  22 movq $60, %rax
  23 movq %r15, %rdi
  24 syscall
  25
  26 # CHECK-NOT: error:           'Child benchmarking process exited with non-zero exit code: Child process returned with unknown exit code'