clang/test/Driver/stack-clash-protection-02.c

   1 // RUN: %clang -target s390x-linux-gnu -fstack-clash-protection -### %s 2>&1 | FileCheck %s -check-prefix=SystemZ
   2 // SystemZ: "-fstack-clash-protection"
   3 // RUN: %clang -target s390x-linux-gnu -fstack-clash-protection -S -emit-llvm -o %t.ll %s 2>&1 | FileCheck %s -check-prefix=SystemZ-warn
   4 // SystemZ-warn: warning: unable to protect inline asm that clobbers stack pointer against stack clash
   5
   6 int foo(int c) {
   7   int r;
   8   __asm__("ag %%r15, %0"
   9           :
  10           : "rm"(c)
  11           : "r15");
  12   return r;
  13 }