diff options
Diffstat (limited to 'tools/testing/selftests/powerpc/pmu/branch_loops.S')
| -rw-r--r-- | tools/testing/selftests/powerpc/pmu/branch_loops.S | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/branch_loops.S b/tools/testing/selftests/powerpc/pmu/branch_loops.S new file mode 100644 index 000000000..de758dd3c --- /dev/null +++ b/tools/testing/selftests/powerpc/pmu/branch_loops.S @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright 2022, Kajol Jain, IBM Corp. + */ + +#include <ppc-asm.h> + + .text + +#define ITER_SHIFT 31 + +FUNC_START(indirect_branch_loop) + li r3, 1 + sldi r3, r3, ITER_SHIFT + +1: cmpdi r3, 0 + beqlr + + addi r3, r3, -1 + + ld r4, 2f@got(%r2) + mtctr r4 + bctr + + .balign 32 +2: b 1b + +FUNC_END(indirect_branch_loop) |