Omitting crc instructions.
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
target-tilegx/helper.c | 23 ++++++++++++++++++
target-tilegx/helper.h | 2 ++
target-tilegx/translate.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 84 insertions(+), 1 deletion(-)
diff --git a/target-tilegx/helper.c b/target-tilegx/helper.c
index ea66da0..6aba681 100644
--- a/target-tilegx/helper.c
+++ b/target-tilegx/helper.c
@@ -40,6 +40,29 @@ uint64_t helper_cnttz(uint64_t arg)
return ctz64(arg);
}
+uint64_t helper_pcnt(uint64_t arg)
+{
+ return ctpop64(arg);
+}
+
+uint64_t helper_revbits(uint64_t arg)
+{
+ /* Assign the correct byte position. */
+ arg = bswap64(arg);
+
+ /* Assign the correct nibble position. */
+ arg = ((arg & 0xf0f0f0f0f0f0f0f0ULL) >> 4)
+ | ((arg & 0x0f0f0f0f0f0f0f0fULL) << 4);
+
+ /* Assign the correct bit position. */
+ arg = ((arg & 0x8888888888888888ULL) >> 3)
+ | ((arg & 0x4444444444444444ULL) >> 1)
+ | ((arg & 0x2222222222222222ULL) << 1)
+ | ((arg & 0x1111111111111111ULL) << 3);
+
+ return arg;
+}
+
/*
* Functional Description
* uint64_t a = rf[SrcA];
diff --git a/target-tilegx/helper.h b/target-tilegx/helper.h
index fd5517e..644d313 100644
--- a/target-tilegx/helper.h
+++ b/target-tilegx/helper.h
@@ -1,4 +1,6 @@
DEF_HELPER_2(exception, noreturn, env, i32)
DEF_HELPER_FLAGS_1(cntlz, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_1(cnttz, TCG_CALL_NO_RWG_SE, i64, i64)
+DEF_HELPER_FLAGS_1(pcnt, TCG_CALL_NO_RWG_SE, i64, i64)
+DEF_HELPER_FLAGS_1(revbits, TCG_CALL_NO_RWG_SE, i64, i64)
DEF_HELPER_FLAGS_3(shufflebytes, TCG_CALL_NO_RWG_SE, i64, i64, i64, i64)
diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
index 090c006..82a34e5 100644
--- a/target-tilegx/translate.c
+++ b/target-tilegx/translate.c
@@ -177,6 +177,35 @@ static void gen_saturate_op(TCGv tdest, TCGv tsrca, TCGv
tsrcb,
tcg_temp_free(t0);
}
+static void gen_dblaligni(TCGv tdest, TCGv tsrca, TCGv tsrcb, int shr)
+{
+ TCGv t0 = tcg_temp_new();
+
+ tcg_gen_shri_tl(t0, tsrcb, shr);
+ tcg_gen_shli_tl(tdest, tsrca, 64 - shr);
+ tcg_gen_or_tl(tdest, tdest, t0);
+
+ tcg_temp_free(t0);
+}
+
+static void gen_dblalign(TCGv tdest, TCGv tsrcd, TCGv tsrca, TCGv tsrcb)
+{
+ TCGv t0 = tcg_temp_new();
+
+ tcg_gen_andi_tl(t0, tsrcb, 7);
+ tcg_gen_shli_tl(t0, t0, 3);
+ tcg_gen_shr_tl(tdest, tsrcd, t0);
+
+ /* Rather than creating and invalid shift, 64 - 0, perform the
+ left shift in two steps via the one's compliment. */
+ tcg_gen_xori_tl(t0, t0, 63);
+ tcg_gen_shl_tl(t0, tsrca, t0);
+ tcg_gen_shli_tl(t0, t0, 1);
+ tcg_gen_or_tl(tdest, tdest, t0);
+
+ tcg_temp_free(t0);
+}
+
static TileExcp gen_rr_opcode(DisasContext *dc, unsigned opext,
unsigned dest, unsigned srca)
{
@@ -210,8 +239,14 @@ static TileExcp gen_rr_opcode(DisasContext *dc, unsigned
opext,
switch (opext) {
case OE_RR_X0(CNTLZ):
case OE_RR_Y0(CNTLZ):
+ gen_helper_cntlz(tdest, tsrca);
+ mnemonic = "cntlz";
+ break;
case OE_RR_X0(CNTTZ):
case OE_RR_Y0(CNTTZ):
+ gen_helper_cnttz(tdest, tsrca);
+ mnemonic = "cnttz";
+ break;
case OE_RR_X1(DRAIN):
case OE_RR_X1(DTLBPR):
case OE_RR_X1(FINV):
@@ -251,11 +286,17 @@ static TileExcp gen_rr_opcode(DisasContext *dc, unsigned
opext,
case OE_RR_Y1(LNK):
case OE_RR_X1(MF):
case OE_RR_X1(NAP):
+ return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
case OE_RR_X0(PCNT):
case OE_RR_Y0(PCNT):
+ gen_helper_pcnt(tdest, tsrca);
+ mnemonic = "pcnt";
+ break;
case OE_RR_X0(REVBITS):
case OE_RR_Y0(REVBITS):
- return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
+ gen_helper_revbits(tdest, tsrca);
+ mnemonic = "revbits";
+ break;
case OE_RR_X0(REVBYTES):
case OE_RR_Y0(REVBYTES):
tcg_gen_bswap64_tl(tdest, tsrca);
@@ -358,13 +399,26 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned
opext,
case OE_RRR(CMUL, 0, X0):
case OE_RRR(CRC32_32, 0, X0):
case OE_RRR(CRC32_8, 0, X0):
+ return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
case OE_RRR(DBLALIGN2, 0, X0):
case OE_RRR(DBLALIGN2, 0, X1):
+ gen_dblaligni(tdest, tsrca, tsrcb, 16);
+ mnemonic = "dblalign2";
+ break;
case OE_RRR(DBLALIGN4, 0, X0):
case OE_RRR(DBLALIGN4, 0, X1):
+ gen_dblaligni(tdest, tsrca, tsrcb, 32);
+ mnemonic = "dblalign4";
+ break;
case OE_RRR(DBLALIGN6, 0, X0):
case OE_RRR(DBLALIGN6, 0, X1):
+ gen_dblaligni(tdest, tsrca, tsrcb, 48);
+ mnemonic = "dblalign6";
+ break;
case OE_RRR(DBLALIGN, 0, X0):
+ gen_dblalign(tdest, load_gr(dc, dest), tsrca, tsrcb);
+ mnemonic = "dblalign";
+ break;
case OE_RRR(EXCH4, 0, X1):
case OE_RRR(EXCH, 0, X1):
case OE_RRR(FDOUBLE_ADDSUB, 0, X0):
@@ -516,7 +570,11 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned
opext,
case OE_RRR(SHRU, 0, X1):
case OE_RRR(SHRU, 6, Y0):
case OE_RRR(SHRU, 6, Y1):
+ return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
case OE_RRR(SHUFFLEBYTES, 0, X0):
+ gen_helper_shufflebytes(tdest, load_gr(dc, dest), tsrca, tsrca);
+ mnemonic = "shufflebytes";
+ break;
case OE_RRR(ST1, 0, X1):
case OE_RRR(ST2, 0, X1):
case OE_RRR(ST4, 0, X1):
--
2.4.3
