Index: common/ppc/ppccommon.h
===================================================================
--- common/ppc/ppccommon.h	(revision 624)
+++ common/ppc/ppccommon.h	(working copy)
@@ -268,15 +268,16 @@
 #define PREP_DIFF_8BYTEALIGNED \
 LOAD_ZERO;                     \
 vec_s16_t pix1v, pix2v;        \
+vec_u8_t pix1v8, pix2v8;        \
 vec_u8_t permPix1, permPix2;   \
 permPix1 = vec_lvsl(0, pix1);  \
 permPix2 = vec_lvsl(0, pix2);  \
 
 #define VEC_DIFF_H_8BYTE_ALIGNED(p1,i1,p2,i2,n,d)     \
-pix1v = vec_perm(vec_ld(0,p1), zero_u8v, permPix1);  \
-pix2v = vec_perm(vec_ld(0, p2), zero_u8v, permPix2); \
-pix1v = vec_u8_to_s16( pix1v );                      \
-pix2v = vec_u8_to_s16( pix2v );                      \
+pix1v8 = vec_perm(vec_ld(0,p1), zero_u8v, permPix1);  \
+pix2v8 = vec_perm(vec_ld(0, p2), zero_u8v, permPix2); \
+pix1v = vec_u8_to_s16( pix1v8 );                      \
+pix2v = vec_u8_to_s16( pix2v8 );                      \
 d = vec_sub( pix1v, pix2v);                          \
 p1 += i1;                                            \
 p2 += i2;
Index: common/ppc/dct.c
===================================================================
--- common/ppc/dct.c	(revision 624)
+++ common/ppc/dct.c	(working copy)
@@ -295,7 +295,7 @@
     vec_u8_t lv = vec_ld( 7, dest );                           \
     vec_u8_t dstv   = vec_perm( hv, lv, (vec_u8_t)perm_ldv );  \
     vec_s16_t idct_sh6 = vec_sra(idctv, sixv);                 \
-    vec_u16_t dst16 = vec_mergeh(zero_u8v, dstv);              \
+    vec_u16_t dst16 = (vec_u16_t)vec_mergeh(zero_u8v, dstv);              \
     vec_s16_t idstsum = vec_adds(idct_sh6, (vec_s16_t)dst16);  \
     vec_u8_t idstsum8 = vec_packsu(zero_s16v, idstsum);        \
     /* unaligned store */                                      \
@@ -311,8 +311,8 @@
 
 void x264_add8x8_idct8_altivec( uint8_t *dst, int16_t dct[8][8] )
 {
-    vec_u16_t onev = vec_splat_s16(1);
-    vec_u16_t twov = vec_splat_s16(2);
+    vec_u16_t onev = (vec_u16_t)vec_splat_s16(1);
+    vec_u16_t twov = (vec_u16_t)vec_splat_s16(2);
 
     dct[0][0] += 32; // rounding for the >>6 at the end
 
@@ -341,7 +341,7 @@
 
     vec_u8_t perm_ldv = vec_lvsl(0, dst);
     vec_u8_t perm_stv = vec_lvsr(8, dst);
-    vec_u16_t sixv = vec_splat_s16(6);
+    vec_u16_t sixv = (vec_u16_t)vec_splat_s16(6);
     const vec_u8_t sel = (vec_u8_t) CV(0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1);
     LOAD_ZERO;