diff --git a/src/cmd/internal/obj/x86/asm6.go b/src/cmd/internal/obj/x86/asm6.go
index 8a299fefe3..494e422081 100644
--- a/src/cmd/internal/obj/x86/asm6.go
+++ b/src/cmd/internal/obj/x86/asm6.go
@@ -855,8 +855,8 @@ var yvex_ri3 = []ytab{
 }
 
 var yvex_xyi3 = []ytab{
-	{Yi8, Yxm, Yxr, Zvex_i_rm_r, 2},
-	{Yi8, Yym, Yyr, Zvex_i_rm_r, 2},
+	{Yu8, Yxm, Yxr, Zvex_i_rm_r, 2},
+	{Yu8, Yym, Yyr, Zvex_i_rm_r, 2},
 }
 
 var yvex_yyi4 = []ytab{ //TODO don't hide 4 op, some version have xmm version
diff --git a/src/crypto/sha256/sha256block_amd64.s b/src/crypto/sha256/sha256block_amd64.s
index 6ab3b52d65..6a740f9b59 100644
--- a/src/crypto/sha256/sha256block_amd64.s
+++ b/src/crypto/sha256/sha256block_amd64.s
@@ -302,7 +302,7 @@
 	ADDL    y0, y2;                      \ // y2 = S1 + CH					// --
 	;                                    \
 	VPXOR   XTMP4, XTMP3, XTMP1;         \ // XTMP1 = s0
-	VPSHUFD $-6, XDWORD3, XTMP2;         \ // XTMP2 = W[-2] {BBAA}
+	VPSHUFD $0xFA, XDWORD3, XTMP2;       \ // XTMP2 = W[-2] {BBAA}
 	ORL     T1, y3;                      \ // y3 = MAJ = (a|c)&b)|(a&c)             // MAJ
 	ADDL    y1, h;                       \ // h = k + w + h + S0                    // --
 	;                                    \