diff --git a/sysdeps/powerpc/powerpc32/power4/memset.S b/sysdeps/powerpc/powerpc32/power4/memset.S
index 88110e3..8b746a6 100644
--- a/sysdeps/powerpc/powerpc32/power4/memset.S
+++ b/sysdeps/powerpc/powerpc32/power4/memset.S
@@ -50,7 +50,7 @@ L(_memset):
 
 /* Align to word boundary.  */
 	cmplwi	cr5, rLEN, 31
-	insrdi	rCHR, rCHR, 8, 48     /* Replicate byte to halfword.  */
+	insrwi	rCHR, rCHR, 8, 16     /* Replicate byte to halfword.  */
 	beq+	L(aligned)
 	mtcrf	0x01, rMEMP0
 	subfic	rALIGN, rALIGN, 4
@@ -65,7 +65,7 @@ L(g0):
 /* Handle the case of size < 31.  */
 L(aligned):
 	mtcrf	0x01, rLEN
-	insrdi	rCHR, rCHR, 16, 32    /* Replicate halfword to word.  */
+	insrwi	rCHR, rCHR, 16, 0    /* Replicate halfword to word.  */
 	ble	cr5, L(medium)
 /* Align to 32-byte boundary.  */
 	andi.	rALIGN, rMEMP, 0x1C
diff --git a/sysdeps/powerpc/powerpc32/power6/memset.S b/sysdeps/powerpc/powerpc32/power6/memset.S
index 4b18fa7..445fa44 100644
--- a/sysdeps/powerpc/powerpc32/power6/memset.S
+++ b/sysdeps/powerpc/powerpc32/power6/memset.S
@@ -48,7 +48,7 @@ L(_memset):
 	ble-	cr1, L(small)
 /* Align to word boundary.  */
 	cmplwi	cr5, rLEN, 31
-	insrdi	rCHR, rCHR, 8, 48	/* Replicate byte to halfword.  */
+	insrwi	rCHR, rCHR, 8, 16	/* Replicate byte to halfword.  */
 	beq+	L(aligned)
 	mtcrf	0x01, rMEMP0
 	subfic	rALIGN, rALIGN, 4
@@ -64,7 +64,7 @@ L(g0):
 /* Handle the case of size < 31.  */
 L(aligned):
 	mtcrf	0x01, rLEN
-	insrdi	rCHR, rCHR, 16, 32	/* Replicate halfword to word.  */
+	insrwi	rCHR, rCHR, 16, 0	/* Replicate halfword to word.  */
 	ble	cr5, L(medium)
 /* Align to 32-byte boundary.  */
 	andi.	rALIGN, rMEMP, 0x1C
diff --git a/sysdeps/powerpc/powerpc32/power7/memchr.S b/sysdeps/powerpc/powerpc32/power7/memchr.S
index 1d6a0d6..ccdd7cf 100644
--- a/sysdeps/powerpc/powerpc32/power7/memchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/memchr.S
@@ -25,9 +25,9 @@ ENTRY (__memchr)
 	CALL_MCOUNT
 	dcbt	0,r3
 	clrrwi  r8,r3,2
-	insrdi	r4,r4,8,48
+	insrwi	r4,r4,8,16    /* Replicate byte to word.  */
 	add	r7,r3,r5      /* Calculate the last acceptable address.  */
-	insrdi	r4,r4,16,32
+	insrwi	r4,r4,16,0
 	cmplwi	r5,16
 	li	r9, -1
 	rlwinm	r6,r3,3,27,28 /* Calculate padding.  */
diff --git a/sysdeps/powerpc/powerpc32/power7/memrchr.S b/sysdeps/powerpc/powerpc32/power7/memrchr.S
index ebfd540..b05bf32 100644
--- a/sysdeps/powerpc/powerpc32/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/memrchr.S
@@ -32,8 +32,8 @@ ENTRY (__memrchr)
 	dcbt	r9,r6,16      /* Stream hint, decreasing addresses.  */
 
 	/* Replicate BYTE to word.  */
-	rldimi	r4,r4,8,48
-	rldimi	r4,r4,16,32
+	insrwi	r4,r4,8,16
+	insrwi	r4,r4,16,0
 	li	r6,-4
 	li	r9,-1
 	rlwinm	r0,r0,3,27,28 /* Calculate padding.  */
diff --git a/sysdeps/powerpc/powerpc32/power7/memset.S b/sysdeps/powerpc/powerpc32/power7/memset.S
index ae18761..34fc1ad 100644
--- a/sysdeps/powerpc/powerpc32/power7/memset.S
+++ b/sysdeps/powerpc/powerpc32/power7/memset.S
@@ -35,8 +35,8 @@ L(_memset):
 	cfi_offset(31,-8)
 
 	/* Replicate byte to word.  */
-	insrdi	4,4,8,48
-	insrdi	4,4,16,32
+	insrwi	4,4,8,16
+	insrwi	4,4,16,0
 
 	ble	cr6,L(small)	/* If length <= 8, use short copy code.  */
 
diff --git a/sysdeps/powerpc/powerpc32/power7/rawmemchr.S b/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
index dec4db0..8ccf186 100644
--- a/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
@@ -27,8 +27,8 @@ ENTRY (__rawmemchr)
 	clrrwi	r8,r3,2	      /* Align the address to word boundary.  */
 
 	/* Replicate byte to word.  */
-	rldimi	r4,r4,8,48
-	rldimi	r4,r4,16,32
+	insrwi	r4,r4,8,16
+	insrwi	r4,r4,16,0
 
 	/* Now r4 has a word of c bytes.  */
 
diff --git a/sysdeps/powerpc/powerpc32/power7/strchr.S b/sysdeps/powerpc/powerpc32/power7/strchr.S
index f7ecb72..d795833 100644
--- a/sysdeps/powerpc/powerpc32/power7/strchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/strchr.S
@@ -35,8 +35,8 @@ ENTRY (strchr)
 	beq	cr7,L(null_match)
 
 	/* Replicate byte to word.  */
-	insrdi	r4,r4,8,48
-	insrdi	r4,r4,16,32
+	insrwi	r4,r4,8,16
+	insrwi	r4,r4,16,0
 
 	/* Now r4 has a word of c bytes and r0 has
 	   a word of null bytes.  */
diff --git a/sysdeps/powerpc/powerpc32/power7/strchrnul.S b/sysdeps/powerpc/powerpc32/power7/strchrnul.S
index ece8237..dcc7620 100644
--- a/sysdeps/powerpc/powerpc32/power7/strchrnul.S
+++ b/sysdeps/powerpc/powerpc32/power7/strchrnul.S
@@ -27,8 +27,8 @@ ENTRY (__strchrnul)
 	clrrwi	r8,r3,2	      /* Align the address to word boundary.  */
 
 	/* Replicate byte to word.  */
-	insrdi	r4,r4,8,48
-	insrdi	r4,r4,16,32
+	insrwi  r4,r4,8,16
+	insrwi  r4,r4,16,0
 
 	rlwinm	r6,r3,3,27,28 /* Calculate padding.  */
 	lwz	r12,0(r8)     /* Load word from memory.  */
