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authorPeter Maydell <peter.maydell@linaro.org>2020-05-22 15:55:14 +0100
committerPeter Maydell <peter.maydell@linaro.org>2020-06-05 17:23:10 +0100
commit434f71ef96d69dbf57d6bb3883a15d2d0b32dea8 (patch)
treee8f9cded289690759f1d5249ea2ab56d0e66b2b8
parent66432d6b8294e3508218b360acfdf7c244eea993 (diff)
target/arm: Convert Neon VSRA, VSRI, VRSHR, VRSRA 2-reg-shift insns to decodetree
Convert the VSRA, VSRI, VRSHR, VRSRA 2-reg-shift insns to decodetree. (These are the last instructions in the group that are vectorized; the rest all require looping over each element.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20200522145520.6778-4-peter.maydell@linaro.org
-rw-r--r--target/arm/neon-dp.decode35
-rw-r--r--target/arm/translate-neon.inc.c7
-rw-r--r--target/arm/translate.c52
3 files changed, 46 insertions, 48 deletions
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode
index 1b877cc68f..659cf13930 100644
--- a/target/arm/neon-dp.decode
+++ b/target/arm/neon-dp.decode
@@ -242,6 +242,41 @@ VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_s
VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_h
VSHR_U_2sh 1111 001 1 1 . ...... .... 0000 . . . 1 .... @2reg_shr_b
+VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d
+VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s
+VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h
+VSRA_S_2sh 1111 001 0 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b
+
+VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_d
+VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_s
+VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_h
+VSRA_U_2sh 1111 001 1 1 . ...... .... 0001 . . . 1 .... @2reg_shr_b
+
+VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d
+VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s
+VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h
+VRSHR_S_2sh 1111 001 0 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b
+
+VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_d
+VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_s
+VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_h
+VRSHR_U_2sh 1111 001 1 1 . ...... .... 0010 . . . 1 .... @2reg_shr_b
+
+VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d
+VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s
+VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h
+VRSRA_S_2sh 1111 001 0 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b
+
+VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_d
+VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_s
+VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_h
+VRSRA_U_2sh 1111 001 1 1 . ...... .... 0011 . . . 1 .... @2reg_shr_b
+
+VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_d
+VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_s
+VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_h
+VSRI_2sh 1111 001 1 1 . ...... .... 0100 . . . 1 .... @2reg_shr_b
+
VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_d
VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_s
VSHL_2sh 1111 001 0 1 . ...... .... 0101 . . . 1 .... @2reg_shl_h
diff --git a/target/arm/translate-neon.inc.c b/target/arm/translate-neon.inc.c
index 8693b9aa99..2868800059 100644
--- a/target/arm/translate-neon.inc.c
+++ b/target/arm/translate-neon.inc.c
@@ -1258,6 +1258,13 @@ static bool do_vector_2sh(DisasContext *s, arg_2reg_shift *a, GVecGen2iFn *fn)
DO_2SH(VSHL, tcg_gen_gvec_shli)
DO_2SH(VSLI, gen_gvec_sli)
+DO_2SH(VSRI, gen_gvec_sri)
+DO_2SH(VSRA_S, gen_gvec_ssra)
+DO_2SH(VSRA_U, gen_gvec_usra)
+DO_2SH(VRSHR_S, gen_gvec_srshr)
+DO_2SH(VRSHR_U, gen_gvec_urshr)
+DO_2SH(VRSRA_S, gen_gvec_srsra)
+DO_2SH(VRSRA_U, gen_gvec_ursra)
static bool trans_VSHR_S_2sh(DisasContext *s, arg_2reg_shift *a)
{
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 4acc94e3cb..2d08c64483 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5297,6 +5297,10 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
switch (op) {
case 0: /* VSHR */
+ case 1: /* VSRA */
+ case 2: /* VRSHR */
+ case 3: /* VRSRA */
+ case 4: /* VSRI */
case 5: /* VSHL, VSLI */
return 1; /* handled by decodetree */
default:
@@ -5330,54 +5334,6 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
shift = shift - (1 << (size + 3));
}
- switch (op) {
- case 1: /* VSRA */
- /* Right shift comes here negative. */
- shift = -shift;
- if (u) {
- gen_gvec_usra(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- } else {
- gen_gvec_ssra(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- }
- return 0;
-
- case 2: /* VRSHR */
- /* Right shift comes here negative. */
- shift = -shift;
- if (u) {
- gen_gvec_urshr(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- } else {
- gen_gvec_srshr(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- }
- return 0;
-
- case 3: /* VRSRA */
- /* Right shift comes here negative. */
- shift = -shift;
- if (u) {
- gen_gvec_ursra(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- } else {
- gen_gvec_srsra(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- }
- return 0;
-
- case 4: /* VSRI */
- if (!u) {
- return 1;
- }
- /* Right shift comes here negative. */
- shift = -shift;
- gen_gvec_sri(size, rd_ofs, rm_ofs, shift,
- vec_size, vec_size);
- return 0;
- }
-
if (size == 3) {
count = q + 1;
} else {