From fe6f943f3bfba8d15ae2f063fad47997af5fb644 Mon Sep 17 00:00:00 2001 From: malc Date: Mon, 28 Jul 2008 23:46:06 +0000 Subject: [PATCH] Immediate versions of some operations git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4962 c046a42c-6fe2-441c-8c8c-71466251a162 --- tcg/ppc64/tcg-target.c | 84 ++++++++++++++++++++++++++++++++++---------------- 1 file changed, 57 insertions(+), 27 deletions(-) diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 8eb37513dd..a9d27d2810 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -22,6 +22,8 @@ * THE SOFTWARE. */ +#define TCG_CT_CONST_U32 0x100 + static uint8_t *tb_ret_addr; #define FAST_PATH @@ -226,6 +228,9 @@ static int target_parse_constraint (TCGArgConstraint *ct, const char **pct_str) tcg_regset_reset_reg (ct->u.regs, TCG_REG_R4); tcg_regset_reset_reg (ct->u.regs, TCG_REG_R5); break; + case 'Z': + ct->ct |= TCG_CT_CONST_U32; + break; default: return -1; } @@ -243,6 +248,8 @@ static int tcg_target_const_match (tcg_target_long val, ct = arg_ct->ct; if (ct & TCG_CT_CONST) return 1; + else if ((ct & TCG_CT_CONST_U32) && (val == (uint32_t) val)) + return 1; return 0; } @@ -352,6 +359,7 @@ static int tcg_target_const_match (tcg_target_long val, #define SLD XO31( 27) #define SRD XO31(539) #define SRAD XO31(794) +#define SRADI XO31(413<<1) #define LMW OPCD( 46) #define STMW OPCD( 47) @@ -874,8 +882,14 @@ static void ppc_addi32 (TCGContext *s, int rt, int ra, tcg_target_long si) static void ppc_addi64 (TCGContext *s, int rt, int ra, tcg_target_long si) { - tcg_out_movi (s, TCG_TYPE_I64, 0, si); - tcg_out32 (s, ADD | RT (rt) | RA (ra)); + /* XXX: suboptimal */ + if (si == (int16_t) si + || (((uint64_t) si >> 31) == 0) && (si & 0x8000) == 0) + ppc_addi32 (s, rt, ra, si); + else { + tcg_out_movi (s, TCG_TYPE_I64, 0, si); + tcg_out32 (s, ADD | RT (rt) | RA (ra)); + } } static void tcg_out_addi (TCGContext *s, int reg, tcg_target_long val) @@ -1102,6 +1116,7 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); break; + case INDEX_op_and_i64: case INDEX_op_and_i32: if (const_args[2]) { if ((args[2] & 0xffff) == args[2]) @@ -1110,13 +1125,17 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0]) | ((args[2] >> 16) & 0xffff)); else { - tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); + tcg_out_movi (s, (opc == INDEX_op_and_i32 + ? TCG_TYPE_I32 + : TCG_TYPE_I64), + 0, args[2]); tcg_out32 (s, AND | SAB (args[1], args[0], 0)); } } else tcg_out32 (s, AND | SAB (args[1], args[0], args[2])); break; + case INDEX_op_or_i64: case INDEX_op_or_i32: if (const_args[2]) { if (args[2] & 0xffff) { @@ -1134,6 +1153,7 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, else tcg_out32 (s, OR | SAB (args[1], args[0], args[2])); break; + case INDEX_op_xor_i64: case INDEX_op_xor_i32: if (const_args[2]) { if ((args[2] & 0xffff) == args[2]) @@ -1143,7 +1163,10 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0]) | ((args[2] >> 16) & 0xffff)); else { - tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); + tcg_out_movi (s, (opc == INDEX_op_and_i32 + ? TCG_TYPE_I32 + : TCG_TYPE_I64), + 0, args[2]); tcg_out32 (s, XOR | SAB (args[1], args[0], 0)); } } @@ -1234,30 +1257,37 @@ static void tcg_out_op (TCGContext *s, int opc, const TCGArg *args, break; case INDEX_op_add_i64: - tcg_out32 (s, ADD | TAB (args[0], args[1], args[2])); + if (const_args[2]) + ppc_addi64 (s, args[0], args[1], args[2]); + else + tcg_out32 (s, ADD | TAB (args[0], args[1], args[2])); break; case INDEX_op_sub_i64: - tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); - break; - - case INDEX_op_and_i64: - tcg_out32 (s, AND | SAB (args[1], args[0], args[2])); - break; - case INDEX_op_or_i64: - tcg_out32 (s, OR | SAB (args[1], args[0], args[2])); - break; - case INDEX_op_xor_i64: - tcg_out32 (s, XOR | SAB (args[1], args[0], args[2])); + if (const_args[2]) + ppc_addi64 (s, args[0], args[1], -args[2]); + else + tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); break; case INDEX_op_shl_i64: - tcg_out32 (s, SLD | SAB (args[1], args[0], args[2])); + if (const_args[2]) + tcg_out_rld (s, RLDICR, args[0], args[1], args[2], 63 - args[2]); + else + tcg_out32 (s, SLD | SAB (args[1], args[0], args[2])); break; case INDEX_op_shr_i64: - tcg_out32 (s, SRD | SAB (args[1], args[0], args[2])); + if (const_args[2]) + tcg_out_rld (s, RLDICL, args[0], args[1], 64 - args[2], args[2]); + else + tcg_out32 (s, SRD | SAB (args[1], args[0], args[2])); break; case INDEX_op_sar_i64: - tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2])); + if (const_args[2]) { + int sh = SH (args[2] & 0x1f) | (((args[2] >> 5) & 1) << 1); + tcg_out32 (s, SRADI | RA (args[0]) | RS (args[1]) | sh); + } + else + tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2])); break; case INDEX_op_mul_i64: @@ -1389,15 +1419,15 @@ static const TCGTargetOpDef ppc_op_defs[] = { { INDEX_op_neg_i32, { "r", "r" } }, - { INDEX_op_add_i64, { "r", "r", "r" } }, - { INDEX_op_sub_i64, { "r", "r", "r" } }, - { INDEX_op_and_i64, { "r", "r", "r" } }, - { INDEX_op_or_i64, { "r", "r", "r" } }, - { INDEX_op_xor_i64, { "r", "r", "r" } }, + { INDEX_op_add_i64, { "r", "r", "ri" } }, + { INDEX_op_sub_i64, { "r", "r", "ri" } }, + { INDEX_op_and_i64, { "r", "r", "rZ" } }, + { INDEX_op_or_i64, { "r", "r", "rZ" } }, + { INDEX_op_xor_i64, { "r", "r", "rZ" } }, - { INDEX_op_shl_i64, { "r", "r", "r" } }, - { INDEX_op_shr_i64, { "r", "r", "r" } }, - { INDEX_op_sar_i64, { "r", "r", "r" } }, + { INDEX_op_shl_i64, { "r", "r", "ri" } }, + { INDEX_op_shr_i64, { "r", "r", "ri" } }, + { INDEX_op_sar_i64, { "r", "r", "ri" } }, { INDEX_op_mul_i64, { "r", "r", "r" } }, { INDEX_op_div_i64, { "r", "r", "r" } }, -- 2.11.0