target-ppc: add vcmpnez[b,h,w][.] instructions

Adds following instructions:

vcmpnezb[.]: Vector Compare Not Equal or Zero Byte
vcmpnezh[.]: Vector Compare Not Equal or Zero Halfword
vcmpnezw[.]: Vector Compare Not Equal or Zero Word

Signed-off-by: Swapnil Bokade <bokadeswapnil@gmail.com>
[ collapse switch case ]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

target-ppc/helper.h

@@ -144,6 +144,9 @@ DEF_HELPER_4(vcmpequb, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequh, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequw, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequd, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezb, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezh, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezw, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtub, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuh, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuw, void, env, avr, avr, avr)
@@ -160,6 +163,9 @@ DEF_HELPER_4(vcmpequb_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequh_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequw_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequd_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezb_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezh_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezw_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtub_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuh_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuw_dot, void, env, avr, avr, avr)

target-ppc/int_helper.c

@@ -719,6 +719,42 @@ VCMP(gtsd, >, s64)
 #undef VCMP_DO
 #undef VCMP
 
+#define VCMPNEZ_DO(suffix, element, etype, record)                   \
+void helper_vcmpnez##suffix(CPUPPCState *env, ppc_avr_t *r,          \
+                            ppc_avr_t *a, ppc_avr_t *b)                 \
+{                                                                       \
+    etype ones = (etype)-1;                                             \
+    etype all = ones;                                                   \
+    etype none = 0;                                                     \
+    int i;                                                              \
+                                                                        \
+    for (i = 0; i < ARRAY_SIZE(r->element); i++) {                      \
+        etype result = ((a->element[i] == 0)                            \
+                           || (b->element[i] == 0)                      \
+                           || (a->element[i] != b->element[i]) ?        \
+                           ones : 0x0);                                 \
+        r->element[i] = result;                                         \
+        all &= result;                                                  \
+        none |= result;                                                 \
+    }                                                                   \
+    if (record) {                                                       \
+        env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1);           \
+    }                                                                   \
+}
+
+/* VCMPNEZ - Vector compare not equal to zero
+ *   suffix  - instruction mnemonic suffix (b: byte, h: halfword, w: word)
+ *   element - element type to access from vector
+ */
+#define VCMPNEZ(suffix, element, etype)         \
+    VCMPNEZ_DO(suffix, element, etype, 0)       \
+    VCMPNEZ_DO(suffix##_dot, element, etype, 1)
+VCMPNEZ(b, u8, uint8_t)
+VCMPNEZ(h, u16, uint16_t)
+VCMPNEZ(w, u32, uint32_t)
+#undef VCMPNEZ_DO
+#undef VCMPNEZ
+
 #define VCMPFP_DO(suffix, compare, order, record)                       \
     void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r,            \
                              ppc_avr_t *a, ppc_avr_t *b)                \

target-ppc/translate/vmx-impl.c

@@ -493,6 +493,9 @@ GEN_VXRFORM(vcmpequb, 3, 0)
 GEN_VXRFORM(vcmpequh, 3, 1)
 GEN_VXRFORM(vcmpequw, 3, 2)
 GEN_VXRFORM(vcmpequd, 3, 3)
+GEN_VXRFORM(vcmpnezb, 3, 4)
+GEN_VXRFORM(vcmpnezh, 3, 5)
+GEN_VXRFORM(vcmpnezw, 3, 6)
 GEN_VXRFORM(vcmpgtsb, 3, 12)
 GEN_VXRFORM(vcmpgtsh, 3, 13)
 GEN_VXRFORM(vcmpgtsw, 3, 14)

target-ppc/translate/vmx-ops.c

@@ -160,12 +160,21 @@ GEN_VXFORM(vminfp, 5, 17),
 
 #define GEN_VXRFORM1(opname, name, str, opc2, opc3)                     \
     GEN_HANDLER2(name, str, 0x4, opc2, opc3, 0x00000000, PPC_ALTIVEC),
+#define GEN_VXRFORM1_300(opname, name, str, opc2, opc3)                 \
+GEN_HANDLER2_E(name, str, 0x4, opc2, opc3, 0x00000000, PPC_NONE, PPC2_ISA300),
 #define GEN_VXRFORM(name, opc2, opc3)                                \
     GEN_VXRFORM1(name, name, #name, opc2, opc3)                      \
     GEN_VXRFORM1(name##_dot, name##_, #name ".", opc2, (opc3 | (0x1 << 4)))
+#define GEN_VXRFORM_300(name, opc2, opc3)                                   \
+    GEN_VXRFORM1_300(name, name, #name, opc2, opc3)                         \
+    GEN_VXRFORM1_300(name##_dot, name##_, #name ".", opc2, (opc3 | (0x1 << 4)))
+
 GEN_VXRFORM(vcmpequb, 3, 0)
 GEN_VXRFORM(vcmpequh, 3, 1)
 GEN_VXRFORM(vcmpequw, 3, 2)
+GEN_VXRFORM_300(vcmpnezb, 3, 4)
+GEN_VXRFORM_300(vcmpnezh, 3, 5)
+GEN_VXRFORM_300(vcmpnezw, 3, 6)
 GEN_VXRFORM(vcmpgtsb, 3, 12)
 GEN_VXRFORM(vcmpgtsh, 3, 13)
 GEN_VXRFORM(vcmpgtsw, 3, 14)