Currently building gcc for xtensa configuration with XCHAL_HAVE_LOOPS
set to 0 fails with the following error:
xtensa.c:3952: undefined reference to `reorg_loops(bool, hw_doloop_hooks*)'
Only compile target-specific zero-overhead loop optimization code when
TARGET_LOOPS allows it.
2014-12-30 Max Filippov <jcmvb...@gmail.com>
* config/xtensa/xtensa.c (hwloop_optimize, hwloop_fail,
hwloop_pattern_reg, xtensa_doloop_hooks, xtensa_reorg_loops):
put under #if TARGET_LOOPS guard.
---
gcc/config/xtensa/xtensa.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/gcc/config/xtensa/xtensa.c b/gcc/config/xtensa/xtensa.c
index 9cc7675..fadfb3f 100644
--- a/gcc/config/xtensa/xtensa.c
+++ b/gcc/config/xtensa/xtensa.c
@@ -3766,6 +3766,8 @@ xtensa_invalid_within_doloop (const rtx_insn *insn)
/* Optimize LOOP. */
+#if TARGET_LOOPS
+
static bool
hwloop_optimize (hwloop_info loop)
{
@@ -3951,6 +3953,12 @@ xtensa_reorg_loops (void)
{
reorg_loops (false, &xtensa_doloop_hooks);
}
+#else
+static inline void
+xtensa_reorg_loops (void)
+{
+}
+#endif
/* Implement the TARGET_MACHINE_DEPENDENT_REORG pass. */
--
1.8.1.4
