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target-ppc: Use the new deposit and extract ops

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Use the new primitives for RDWINM and RLDICL.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2016-10-15 13:37:19 -05:00
parent 6eebb7a438
commit 7b4d326f47
1 changed files with 18 additions and 15 deletions
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33
target/ppc/translate.c
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@ -1975,16 +1975,16 @@ static void gen_rlwinm(DisasContext *ctx)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
uint32_t sh = SH(ctx->opcode);
uint32_t mb = MB(ctx->opcode);
uint32_t me = ME(ctx->opcode);
int sh = SH(ctx->opcode);
int mb = MB(ctx->opcode);
int me = ME(ctx->opcode);
int len = me - mb + 1;
int rsh = (32 - sh) & 31;
if (mb == 0 && me == (31 - sh)) {
tcg_gen_shli_tl(t_ra, t_rs, sh);
tcg_gen_ext32u_tl(t_ra, t_ra);
} else if (sh != 0 && me == 31 && sh == (32 - mb)) {
tcg_gen_ext32u_tl(t_ra, t_rs);
tcg_gen_shri_tl(t_ra, t_ra, mb);
if (sh != 0 && len > 0 && me == (31 - sh)) {
tcg_gen_deposit_z_tl(t_ra, t_rs, sh, len);
} else if (me == 31 && rsh + len <= 32) {
tcg_gen_extract_tl(t_ra, t_rs, rsh, len);
} else {
target_ulong mask;
#if defined(TARGET_PPC64)
@ -1992,8 +1992,9 @@ static void gen_rlwinm(DisasContext *ctx)
me += 32;
#endif
mask = MASK(mb, me);
if (mask <= 0xffffffffu) {
if (sh == 0) {
tcg_gen_andi_tl(t_ra, t_rs, mask);
} else if (mask <= 0xffffffffu) {
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, t_rs);
tcg_gen_rotli_i32(t0, t0, sh);
@ -2096,11 +2097,13 @@ static void gen_rldinm(DisasContext *ctx, int mb, int me, int sh)
{
TCGv t_ra = cpu_gpr[rA(ctx->opcode)];
TCGv t_rs = cpu_gpr[rS(ctx->opcode)];
int len = me - mb + 1;
int rsh = (64 - sh) & 63;
if (sh != 0 && mb == 0 && me == (63 - sh)) {
tcg_gen_shli_tl(t_ra, t_rs, sh);
} else if (sh != 0 && me == 63 && sh == (64 - mb)) {
tcg_gen_shri_tl(t_ra, t_rs, mb);
if (sh != 0 && len > 0 && me == (63 - sh)) {
tcg_gen_deposit_z_tl(t_ra, t_rs, sh, len);
} else if (me == 63 && rsh + len <= 64) {
tcg_gen_extract_tl(t_ra, t_rs, rsh, len);
} else {
tcg_gen_rotli_tl(t_ra, t_rs, sh);
tcg_gen_andi_tl(t_ra, t_ra, MASK(mb, me));