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[PATCH v3 26/32] target/mips: Convert MSA COPY_S and INSERT opcodes to d
From: |
Philippe Mathieu-Daudé |
Subject: |
[PATCH v3 26/32] target/mips: Convert MSA COPY_S and INSERT opcodes to decodetree |
Date: |
Thu, 28 Oct 2021 23:08:37 +0200 |
Convert the COPY_S (Element Copy to GPR Signed) opcode
and INSERT (GPR Insert Element) opcode to decodetree.
Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/tcg/msa.decode | 2 +
target/mips/tcg/msa_translate.c | 103 +++++---------------------------
2 files changed, 18 insertions(+), 87 deletions(-)
diff --git a/target/mips/tcg/msa.decode b/target/mips/tcg/msa.decode
index 0e166a4e61d..9aac6808fc5 100644
--- a/target/mips/tcg/msa.decode
+++ b/target/mips/tcg/msa.decode
@@ -167,7 +167,9 @@ BNZ 010001 111 .. ..... ................
@bz
SLDI 011110 0000 ...... ..... ..... 011001 @elm_df
SPLATI 011110 0001 ...... ..... ..... 011001 @elm_df
+ COPY_S 011110 0010 ...... ..... ..... 011001 @elm_df
COPY_U 011110 0011 ...... ..... ..... 011001 @elm_df
+ INSERT 011110 0100 ...... ..... ..... 011001 @elm_df
INSVE 011110 0101 ...... ..... ..... 011001 @elm_df
FCAF 011110 0000 . ..... ..... ..... 011010 @3rf_w
diff --git a/target/mips/tcg/msa_translate.c b/target/mips/tcg/msa_translate.c
index eca38557769..e10dd5e6ef8 100644
--- a/target/mips/tcg/msa_translate.c
+++ b/target/mips/tcg/msa_translate.c
@@ -46,9 +46,7 @@ enum {
/* ELM instructions df(bits 21..16) = _b, _h, _w, _d */
OPC_CTCMSA = (0x0 << 22) | (0x3E << 16) | OPC_MSA_ELM,
OPC_CFCMSA = (0x1 << 22) | (0x3E << 16) | OPC_MSA_ELM,
- OPC_COPY_S_df = (0x2 << 22) | (0x00 << 16) | OPC_MSA_ELM,
OPC_MOVE_V = (0x2 << 22) | (0x3E << 16) | OPC_MSA_ELM,
- OPC_INSERT_df = (0x4 << 22) | (0x00 << 16) | OPC_MSA_ELM,
};
static const char msaregnames[][6] = {
@@ -629,98 +627,31 @@ static bool trans_COPY_U(DisasContext *ctx,
arg_msa_elm_df *a)
return trans_msa_elm_fn(ctx, a, gen_msa_copy_u);
}
-static void gen_msa_elm_df(DisasContext *ctx, uint32_t df, uint32_t n)
+static bool trans_COPY_S(DisasContext *ctx, arg_msa_elm_df *a)
{
-#define MASK_MSA_ELM(op) (MASK_MSA_MINOR(op) | (op & (0xf << 22)))
- uint8_t ws = (ctx->opcode >> 11) & 0x1f;
- uint8_t wd = (ctx->opcode >> 6) & 0x1f;
+ static gen_helper_piii * const gen_msa_copy_s[4] = {
+ gen_helper_msa_copy_s_b, gen_helper_msa_copy_s_h,
+ gen_helper_msa_copy_s_w, NULL_IF_MIPS32(gen_helper_msa_copy_s_d)
+ };
- TCGv_i32 tws = tcg_const_i32(ws);
- TCGv_i32 twd = tcg_const_i32(wd);
- TCGv_i32 tn = tcg_const_i32(n);
+ return trans_msa_elm_fn(ctx, a, gen_msa_copy_s);
+}
- switch (MASK_MSA_ELM(ctx->opcode)) {
- case OPC_COPY_S_df:
- case OPC_INSERT_df:
-#if !defined(TARGET_MIPS64)
- /* Double format valid only for MIPS64 */
- if (df == DF_DOUBLE) {
- gen_reserved_instruction(ctx);
- break;
- }
-#endif
- switch (MASK_MSA_ELM(ctx->opcode)) {
- case OPC_COPY_S_df:
- if (likely(wd != 0)) {
- switch (df) {
- case DF_BYTE:
- gen_helper_msa_copy_s_b(cpu_env, twd, tws, tn);
- break;
- case DF_HALF:
- gen_helper_msa_copy_s_h(cpu_env, twd, tws, tn);
- break;
- case DF_WORD:
- gen_helper_msa_copy_s_w(cpu_env, twd, tws, tn);
- break;
-#if defined(TARGET_MIPS64)
- case DF_DOUBLE:
- gen_helper_msa_copy_s_d(cpu_env, twd, tws, tn);
- break;
-#endif
- default:
- assert(0);
- }
- }
- break;
- case OPC_INSERT_df:
- switch (df) {
- case DF_BYTE:
- gen_helper_msa_insert_b(cpu_env, twd, tws, tn);
- break;
- case DF_HALF:
- gen_helper_msa_insert_h(cpu_env, twd, tws, tn);
- break;
- case DF_WORD:
- gen_helper_msa_insert_w(cpu_env, twd, tws, tn);
- break;
-#if defined(TARGET_MIPS64)
- case DF_DOUBLE:
- gen_helper_msa_insert_d(cpu_env, twd, tws, tn);
- break;
-#endif
- default:
- assert(0);
- }
- break;
- }
- break;
- default:
- MIPS_INVAL("MSA instruction");
- gen_reserved_instruction(ctx);
- }
- tcg_temp_free_i32(twd);
- tcg_temp_free_i32(tws);
- tcg_temp_free_i32(tn);
+static bool trans_INSERT(DisasContext *ctx, arg_msa_elm_df *a)
+{
+ static gen_helper_piii * const gen_msa_insert[4] = {
+ gen_helper_msa_insert_b, gen_helper_msa_insert_h,
+ gen_helper_msa_insert_w, NULL_IF_MIPS32(gen_helper_msa_insert_d)
+ };
+
+ return trans_msa_elm_fn(ctx, a, gen_msa_insert);
}
static void gen_msa_elm(DisasContext *ctx)
{
uint8_t dfn = (ctx->opcode >> 16) & 0x3f;
- uint32_t df = 0, n = 0;
- if ((dfn & 0x30) == 0x00) {
- n = dfn & 0x0f;
- df = DF_BYTE;
- } else if ((dfn & 0x38) == 0x20) {
- n = dfn & 0x07;
- df = DF_HALF;
- } else if ((dfn & 0x3c) == 0x30) {
- n = dfn & 0x03;
- df = DF_WORD;
- } else if ((dfn & 0x3e) == 0x38) {
- n = dfn & 0x01;
- df = DF_DOUBLE;
- } else if (dfn == 0x3E) {
+ if (dfn == 0x3E) {
/* CTCMSA, CFCMSA, MOVE.V */
gen_msa_elm_3e(ctx);
return;
@@ -728,8 +659,6 @@ static void gen_msa_elm(DisasContext *ctx)
gen_reserved_instruction(ctx);
return;
}
-
- gen_msa_elm_df(ctx, df, n);
}
TRANS(FCAF, trans_msa_3rf, gen_helper_msa_fcaf_df);
--
2.31.1
- [PATCH v3 19/32] target/mips: Convert MSA 3RF instruction format to decodetree (DF_WORD), (continued)
- [PATCH v3 19/32] target/mips: Convert MSA 3RF instruction format to decodetree (DF_WORD), Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 20/32] target/mips: Convert MSA 3R instruction format to decodetree (part 1/4), Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 21/32] target/mips: Convert MSA 3R instruction format to decodetree (part 2/4), Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 22/32] target/mips: Convert MSA 3R instruction format to decodetree (part 3/4), Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 24/32] target/mips: Convert MSA ELM instruction format to decodetree, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 23/32] target/mips: Convert MSA 3R instruction format to decodetree (part 4/4), Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 25/32] target/mips: Convert MSA COPY_U opcode to decodetree, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 26/32] target/mips: Convert MSA COPY_S and INSERT opcodes to decodetree,
Philippe Mathieu-Daudé <=
- [PATCH v3 27/32] target/mips: Convert MSA MOVE.V opcode to decodetree, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 28/32] target/mips: Convert CFCMSA opcode to decodetree, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 29/32] target/mips: Convert CTCMSA opcode to decodetree, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 30/32] target/mips: Remove generic MSA opcode, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 31/32] target/mips: Remove one MSA unnecessary decodetree overlap group, Philippe Mathieu-Daudé, 2021/10/28
- [PATCH v3 32/32] target/mips: Adjust style in msa_translate_init(), Philippe Mathieu-Daudé, 2021/10/28