clang/test/CodeGen/PowerPC/inline-asm-matching-ppc-vsx.c

   1 // REQUIRES: powerpc-registered-target
   2
   3 // RUN: %clang_cc1 -triple powerpc64le-unknown-linux-gnu -target-feature +vsx \
   4 // RUN:   -target-cpu pwr9 -emit-llvm %s -o - | FileCheck %s
   5
   6 // This case is to test VSX register support in the clobbers list for inline asm.
   7 void testVSX (void) {
   8   unsigned int a = 0;
   9   unsigned int *dbell=&a;
  10   int d;
  11   __asm__ __volatile__ (
  12     "lxvw4x  %%vs32, 0, %2\n\t"
  13     "stxvw4x %%vs32, 0, %1"
  14     : "=m"(*(volatile unsigned int*)(dbell))
  15     : "r" (dbell), "r" (&d)
  16     : "vs32"
  17   );
  18 }
  19
  20 // CHECK: call void asm sideeffect "lxvw4x  %vs32, 0, $2\0A\09stxvw4x %vs32, 0, $1", "=*m,r,r,~{vs32}"