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target-tilegx: Handle shift instructions

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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-08-21 14:41:41 -07:00
parent c06b181729
commit 2369976deb
1 changed files with 54 additions and 2 deletions
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56
target-tilegx/translate.c
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@ -470,6 +470,7 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
TCGv tdest = dest_gr(dc, dest);
TCGv tsrca = load_gr(dc, srca);
TCGv tsrcb = load_gr(dc, srcb);
TCGv t0;
const char *mnemonic;
switch (opext) {
@ -662,7 +663,10 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
case OE_RRR(ROTL, 0, X1):
case OE_RRR(ROTL, 6, Y0):
case OE_RRR(ROTL, 6, Y1):
return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
tcg_gen_andi_tl(tdest, tsrcb, 63);
tcg_gen_rotl_tl(tdest, tsrca, tdest);
mnemonic = "rotl";
break;
case OE_RRR(SHL1ADDX, 0, X0):
case OE_RRR(SHL1ADDX, 0, X1):
case OE_RRR(SHL1ADDX, 7, Y0):
@ -716,21 +720,45 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
break;
case OE_RRR(SHLX, 0, X0):
case OE_RRR(SHLX, 0, X1):
tcg_gen_andi_tl(tdest, tsrcb, 31);
tcg_gen_shl_tl(tdest, tsrca, tdest);
tcg_gen_ext32s_tl(tdest, tdest);
mnemonic = "shlx";
break;
case OE_RRR(SHL, 0, X0):
case OE_RRR(SHL, 0, X1):
case OE_RRR(SHL, 6, Y0):
case OE_RRR(SHL, 6, Y1):
tcg_gen_andi_tl(tdest, tsrcb, 63);
tcg_gen_shl_tl(tdest, tsrca, tdest);
mnemonic = "shl";
break;
case OE_RRR(SHRS, 0, X0):
case OE_RRR(SHRS, 0, X1):
case OE_RRR(SHRS, 6, Y0):
case OE_RRR(SHRS, 6, Y1):
tcg_gen_andi_tl(tdest, tsrcb, 63);
tcg_gen_sar_tl(tdest, tsrca, tdest);
mnemonic = "shrs";
break;
case OE_RRR(SHRUX, 0, X0):
case OE_RRR(SHRUX, 0, X1):
t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, tsrcb, 31);
tcg_gen_ext32u_tl(tdest, tsrca);
tcg_gen_shr_tl(tdest, tdest, t0);
tcg_gen_ext32s_tl(tdest, tdest);
tcg_temp_free(t0);
mnemonic = "shrux";
break;
case OE_RRR(SHRU, 0, X0):
case OE_RRR(SHRU, 0, X1):
case OE_RRR(SHRU, 6, Y0):
case OE_RRR(SHRU, 6, Y1):
return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
tcg_gen_andi_tl(tdest, tsrcb, 63);
tcg_gen_shr_tl(tdest, tsrca, tdest);
mnemonic = "shru";
break;
case OE_RRR(SHUFFLEBYTES, 0, X0):
gen_helper_shufflebytes(tdest, load_gr(dc, dest), tsrca, tsrca);
mnemonic = "shufflebytes";
@ -1064,22 +1092,46 @@ static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
case OE_SH(ROTLI, X1):
case OE_SH(ROTLI, Y0):
case OE_SH(ROTLI, Y1):
tcg_gen_rotli_tl(tdest, tsrca, imm);
mnemonic = "rotli";
break;
case OE_SH(SHLI, X0):
case OE_SH(SHLI, X1):
case OE_SH(SHLI, Y0):
case OE_SH(SHLI, Y1):
tcg_gen_shli_tl(tdest, tsrca, imm);
mnemonic = "shli";
break;
case OE_SH(SHLXI, X0):
case OE_SH(SHLXI, X1):
tcg_gen_shli_tl(tdest, tsrca, imm & 31);
tcg_gen_ext32s_tl(tdest, tdest);
mnemonic = "shlxi";
break;
case OE_SH(SHRSI, X0):
case OE_SH(SHRSI, X1):
case OE_SH(SHRSI, Y0):
case OE_SH(SHRSI, Y1):
tcg_gen_sari_tl(tdest, tsrca, imm);
mnemonic = "shrsi";
break;
case OE_SH(SHRUI, X0):
case OE_SH(SHRUI, X1):
case OE_SH(SHRUI, Y0):
case OE_SH(SHRUI, Y1):
tcg_gen_shri_tl(tdest, tsrca, imm);
mnemonic = "shrui";
break;
case OE_SH(SHRUXI, X0):
case OE_SH(SHRUXI, X1):
if ((imm & 31) == 0) {
tcg_gen_ext32s_tl(tdest, tsrca);
} else {
tcg_gen_ext32u_tl(tdest, tsrca);
tcg_gen_shri_tl(tdest, tdest, imm & 31);
}
mnemonic = "shlxi";
break;
case OE_SH(V1SHLI, X0):
case OE_SH(V1SHLI, X1):
case OE_SH(V1SHRSI, X0):