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Index: lib/libc/powerpc64/string/bcopy.S
===================================================================
--- lib/libc/powerpc64/string/bcopy.S
+++ lib/libc/powerpc64/string/bcopy.S
@@ -34,6 +34,11 @@
#define BLOCK_SIZE (1 << BLOCK_SIZE_BITS)
#define BLOCK_SIZE_MASK (BLOCK_SIZE - 1)
+/* Minimum 8 byte alignment, to avoid cache-inhibited alignment faults.*/
+#ifndef ALIGN_MASK
+#define ALIGN_MASK 0x7
+#endif
+
#define MULTI_PHASE_THRESHOLD 512
#ifndef FN_NAME
@@ -67,8 +72,14 @@
#endif
cmpldi %r5, MULTI_PHASE_THRESHOLD
- bge .Lmulti_phase
-
+ blt .Lavoid_vsx
+ /*check if aligned. if aligned, go to multi_phase*/
+ andi. %r8, %r3, ALIGN_MASK
+ andi. %r7, %r4, ALIGN_MASK
+ cmpd %r8, %r7
+ beq .Lmulti_phase
+
+.Lavoid_vsx:
/* align src */
cmpd %r4, %r3 /* forward or backward copy? */
blt .Lbackward_align

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