summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/powerpc/pmu/branch_loops.S
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/powerpc/pmu/branch_loops.S')
-rw-r--r--tools/testing/selftests/powerpc/pmu/branch_loops.S28
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)