summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--libc/arch-arm/bionic/ffs.S3
1 files changed, 2 insertions, 1 deletions
diff --git a/libc/arch-arm/bionic/ffs.S b/libc/arch-arm/bionic/ffs.S
index f11141c..27aa9b5 100644
--- a/libc/arch-arm/bionic/ffs.S
+++ b/libc/arch-arm/bionic/ffs.S
@@ -29,6 +29,7 @@
*/
#include <machine/asm.h>
+#include <machine/cpu-features.h>
/*
* ffs - find first set bit, this algorithm isolates the first set
@@ -47,7 +48,7 @@ ENTRY(ffs)
/* Standard trick to isolate bottom bit in r0 or 0 if r0 = 0 on entry */
rsb r1, r0, #0
ands r0, r0, r1
-#ifndef __ARM_ARCH_5__
+#if __ARM_HAVE_CLZ != 1
/*
* now r0 has at most one set bit, call this X
* if X = 0, all further instructions are skipped