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target/ppc: remove various HOST_WORDS_BIGENDIAN hacks in int_helper.c 

Following on from the previous work, there are numerous endian-related hacks
in int_helper.c that can now be replaced with Vsr* macros.

There are also a few places where the VECTOR_FOR_INORDER_I macro can be
replaced with a normal iterator since the processing order is irrelevant.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Mark Cave-Ayland 2019-01-30 20:36:38 +00:00 committed by David Gibson
parent 0ef83bf29e
commit 60594fea29
1 changed files with 45 additions and 110 deletions
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155
target/ppc/int_helper.c
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@ -443,8 +443,8 @@ void helper_lvsl(ppc_avr_t *r, target_ulong sh)
{
int i, j = (sh & 0xf);
VECTOR_FOR_INORDER_I(i, u8) {
r->u8[i] = j++;
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
r->VsrB(i) = j++;
}
}
@ -452,18 +452,14 @@ void helper_lvsr(ppc_avr_t *r, target_ulong sh)
{
int i, j = 0x10 - (sh & 0xf);
VECTOR_FOR_INORDER_I(i, u8) {
r->u8[i] = j++;
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
r->VsrB(i) = j++;
}
}
void helper_mtvscr(CPUPPCState *env, ppc_avr_t *r)
{
#if defined(HOST_WORDS_BIGENDIAN)
env->vscr = r->u32[3];
#else
env->vscr = r->u32[0];
#endif
env->vscr = r->VsrW(3);
set_flush_to_zero(vscr_nj, &env->vec_status);
}
@ -870,8 +866,8 @@ target_ulong helper_vclzlsbb(ppc_avr_t *r)
{
target_ulong count = 0;
int i;
VECTOR_FOR_INORDER_I(i, u8) {
if (r->u8[i] & 0x01) {
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
if (r->VsrB(i) & 0x01) {
break;
}
count++;
@ -883,12 +879,8 @@ target_ulong helper_vctzlsbb(ppc_avr_t *r)
{
target_ulong count = 0;
int i;
#if defined(HOST_WORDS_BIGENDIAN)
for (i = ARRAY_SIZE(r->u8) - 1; i >= 0; i--) {
#else
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
#endif
if (r->u8[i] & 0x01) {
if (r->VsrB(i) & 0x01) {
break;
}
count++;
@ -1137,18 +1129,14 @@ void helper_vperm(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t result;
int i;
VECTOR_FOR_INORDER_I(i, u8) {
int s = c->u8[i] & 0x1f;
#if defined(HOST_WORDS_BIGENDIAN)
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int s = c->VsrB(i) & 0x1f;
int index = s & 0xf;
#else
int index = 15 - (s & 0xf);
#endif
if (s & 0x10) {
result.u8[i] = b->u8[index];
result.VsrB(i) = b->VsrB(index);
} else {
result.u8[i] = a->u8[index];
result.VsrB(i) = a->VsrB(index);
}
}
*r = result;
@ -1160,18 +1148,14 @@ void helper_vpermr(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t result;
int i;
VECTOR_FOR_INORDER_I(i, u8) {
int s = c->u8[i] & 0x1f;
#if defined(HOST_WORDS_BIGENDIAN)
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int s = c->VsrB(i) & 0x1f;
int index = 15 - (s & 0xf);
#else
int index = s & 0xf;
#endif
if (s & 0x10) {
result.u8[i] = a->u8[index];
result.VsrB(i) = a->VsrB(index);
} else {
result.u8[i] = b->u8[index];
result.VsrB(i) = b->VsrB(index);
}
}
*r = result;
@ -1868,25 +1852,14 @@ void helper_vsldoi(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, uint32_t shift)
int i;
ppc_avr_t result;
#if defined(HOST_WORDS_BIGENDIAN)
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = sh + i;
if (index > 0xf) {
result.u8[i] = b->u8[index - 0x10];
result.VsrB(i) = b->VsrB(index - 0x10);
} else {
result.u8[i] = a->u8[index];
result.VsrB(i) = a->VsrB(index);
}
}
#else
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int index = (16 - sh) + i;
if (index > 0xf) {
result.u8[i] = a->u8[index - 0x10];
} else {
result.u8[i] = b->u8[index];
}
}
#endif
*r = result;
}
@ -1905,25 +1878,20 @@ void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
/* Experimental testing shows that hardware masks the immediate. */
#define _SPLAT_MASKED(element) (splat & (ARRAY_SIZE(r->element) - 1))
#if defined(HOST_WORDS_BIGENDIAN)
#define SPLAT_ELEMENT(element) _SPLAT_MASKED(element)
#else
#define SPLAT_ELEMENT(element) \
(ARRAY_SIZE(r->element) - 1 - _SPLAT_MASKED(element))
#endif
#define VSPLT(suffix, element) \
#define VSPLT(suffix, element, access) \
void helper_vsplt##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t splat) \
{ \
uint32_t s = b->element[SPLAT_ELEMENT(element)]; \
uint32_t s = b->access(SPLAT_ELEMENT(element)); \
int i; \
\
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
r->element[i] = s; \
r->access(i) = s; \
} \
}
VSPLT(b, u8)
VSPLT(h, u16)
VSPLT(w, u32)
VSPLT(b, u8, VsrB)
VSPLT(h, u16, VsrH)
VSPLT(w, u32, VsrW)
#undef VSPLT
#undef SPLAT_ELEMENT
#undef _SPLAT_MASKED
@ -1984,17 +1952,10 @@ void helper_xxextractuw(CPUPPCState *env, target_ulong xtn,
getVSR(xbn, &xb, env);
memset(&xt, 0, sizeof(xt));
#if defined(HOST_WORDS_BIGENDIAN)
ext_index = index;
for (i = 0; i < es; i++, ext_index++) {
xt.u8[8 - es + i] = xb.u8[ext_index % 16];
xt.VsrB(8 - es + i) = xb.VsrB(ext_index % 16);
}
#else
ext_index = 15 - index;
for (i = es - 1; i >= 0; i--, ext_index--) {
xt.u8[8 + i] = xb.u8[ext_index % 16];
}
#endif
putVSR(xtn, &xt, env);
}
@ -2009,17 +1970,10 @@ void helper_xxinsertw(CPUPPCState *env, target_ulong xtn,
getVSR(xbn, &xb, env);
getVSR(xtn, &xt, env);
#if defined(HOST_WORDS_BIGENDIAN)
ins_index = index;
for (i = 0; i < es && ins_index < 16; i++, ins_index++) {
xt.u8[ins_index] = xb.u8[8 - es + i];
xt.VsrB(ins_index) = xb.VsrB(8 - es + i);
}
#else
ins_index = 15 - index;
for (i = es - 1; i >= 0 && ins_index >= 0; i--, ins_index--) {
xt.u8[ins_index] = xb.u8[8 + i];
}
#endif
putVSR(xtn, &xt, env);
}
@ -2028,7 +1982,7 @@ void helper_xxinsertw(CPUPPCState *env, target_ulong xtn,
void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \
int i; \
VECTOR_FOR_INORDER_I(i, element) { \
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
r->element[i] = (cast)b->element[i]; \
} \
}
@ -2043,7 +1997,7 @@ VEXT_SIGNED(vextsw2d, s64, int32_t)
void helper_##name(ppc_avr_t *r, ppc_avr_t *b) \
{ \
int i; \
VECTOR_FOR_INORDER_I(i, element) { \
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
r->element[i] = -b->element[i]; \
} \
}
@ -2115,17 +2069,13 @@ void helper_vsumsws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
ppc_avr_t result;
int sat = 0;
#if defined(HOST_WORDS_BIGENDIAN)
upper = ARRAY_SIZE(r->s32)-1;
#else
upper = 0;
#endif
t = (int64_t)b->s32[upper];
upper = ARRAY_SIZE(r->s32) - 1;
t = (int64_t)b->VsrSW(upper);
for (i = 0; i < ARRAY_SIZE(r->s32); i++) {
t += a->s32[i];
result.s32[i] = 0;
t += a->VsrSW(i);
result.VsrSW(i) = 0;
}
result.s32[upper] = cvtsdsw(t, &sat);
result.VsrSW(upper) = cvtsdsw(t, &sat);
*r = result;
if (sat) {
@ -2139,19 +2089,15 @@ void helper_vsum2sws(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
ppc_avr_t result;
int sat = 0;
#if defined(HOST_WORDS_BIGENDIAN)
upper = 1;
#else
upper = 0;
#endif
for (i = 0; i < ARRAY_SIZE(r->u64); i++) {
int64_t t = (int64_t)b->s32[upper + i * 2];
int64_t t = (int64_t)b->VsrSW(upper + i * 2);
result.u64[i] = 0;
result.VsrW(i) = 0;
for (j = 0; j < ARRAY_SIZE(r->u64); j++) {
t += a->s32[2 * i + j];
t += a->VsrSW(2 * i + j);
}
result.s32[upper + i * 2] = cvtsdsw(t, &sat);
result.VsrSW(upper + i * 2) = cvtsdsw(t, &sat);
}
*r = result;
@ -2276,7 +2222,7 @@ VUPK(lsw, s64, s32, UPKLO)
{ \
int i; \
\
VECTOR_FOR_INORDER_I(i, element) { \
for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
r->element[i] = name(b->element[i]); \
} \
}
@ -2616,20 +2562,12 @@ static int bcd_cmp_zero(ppc_avr_t *bcd)
static uint16_t get_national_digit(ppc_avr_t *reg, int n)
{
#if defined(HOST_WORDS_BIGENDIAN)
return reg->u16[7 - n];
#else
return reg->u16[n];
#endif
return reg->VsrH(7 - n);
}
static void set_national_digit(ppc_avr_t *reg, uint8_t val, int n)
{
#if defined(HOST_WORDS_BIGENDIAN)
reg->u16[7 - n] = val;
#else
reg->u16[n] = val;
#endif
reg->VsrH(7 - n) = val;
}
static int bcd_cmp_mag(ppc_avr_t *a, ppc_avr_t *b)
@ -3373,14 +3311,11 @@ void helper_vpermxor(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
ppc_avr_t result;
int i;
VECTOR_FOR_INORDER_I(i, u8) {
int indexA = c->u8[i] >> 4;
int indexB = c->u8[i] & 0xF;
#if defined(HOST_WORDS_BIGENDIAN)
result.u8[i] = a->u8[indexA] ^ b->u8[indexB];
#else
result.u8[i] = a->u8[15-indexA] ^ b->u8[15-indexB];
#endif
for (i = 0; i < ARRAY_SIZE(r->u8); i++) {
int indexA = c->VsrB(i) >> 4;
int indexB = c->VsrB(i) & 0xF;
result.VsrB(i) = a->VsrB(indexA) ^ b->VsrB(indexB);
}
*r = result;
}