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tcg-ppc64: Implement rotates

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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2013-01-30 19:24:06 -08:00
parent 49d9870a54
commit 313d91c778
2 changed files with 41 additions and 2 deletions
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39
tcg/ppc64/tcg-target.c
View File

@ -336,11 +336,14 @@ static int tcg_target_const_match (tcg_target_long val,
#define LWZU OPCD( 33)
#define STWU OPCD( 37)
#define RLWIMI OPCD( 20)
#define RLWINM OPCD( 21)
#define RLWNM OPCD( 23)
#define RLDICL XO30( 0)
#define RLDICR XO30( 1)
#define RLDIMI XO30( 3)
#define RLDCL XO30( 8)
#define BCLR XO19( 16)
#define BCCTR XO19(528)
@ -1473,6 +1476,23 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args,
else
tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
break;
case INDEX_op_rotl_i32:
if (const_args[2]) {
tcg_out_rlw(s, RLWINM, args[0], args[1], args[2], 0, 31);
} else {
tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2])
| MB(0) | ME(31));
}
break;
case INDEX_op_rotr_i32:
if (const_args[2]) {
tcg_out_rlw(s, RLWINM, args[0], args[1], 32 - args[2], 0, 31);
} else {
tcg_out32(s, SUBFIC | TAI(0, args[2], 32));
tcg_out32(s, RLWNM | SAB(args[1], args[0], args[2])
| MB(0) | ME(31));
}
break;
case INDEX_op_brcond_i32:
tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3], 0);
@ -1561,6 +1581,21 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args,
else
tcg_out32 (s, SRAD | SAB (args[1], args[0], args[2]));
break;
case INDEX_op_rotl_i64:
if (const_args[2]) {
tcg_out_rld(s, RLDICL, args[0], args[1], args[2], 0);
} else {
tcg_out32(s, RLDCL | SAB(args[1], args[0], args[2]) | MB64(0));
}
break;
case INDEX_op_rotr_i64:
if (const_args[2]) {
tcg_out_rld(s, RLDICL, args[0], args[1], 64 - args[2], 0);
} else {
tcg_out32(s, SUBFIC | TAI(0, args[2], 64));
tcg_out32(s, RLDCL | SAB(args[1], args[0], 0) | MB64(0));
}
break;
case INDEX_op_mul_i64:
tcg_out32 (s, MULLD | TAB (args[0], args[1], args[2]));
@ -1693,6 +1728,8 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_shl_i32, { "r", "r", "ri" } },
{ INDEX_op_shr_i32, { "r", "r", "ri" } },
{ INDEX_op_sar_i32, { "r", "r", "ri" } },
{ INDEX_op_rotl_i32, { "r", "r", "ri" } },
{ INDEX_op_rotr_i32, { "r", "r", "ri" } },
{ INDEX_op_brcond_i32, { "r", "ri" } },
{ INDEX_op_brcond_i64, { "r", "ri" } },
@ -1709,6 +1746,8 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_shl_i64, { "r", "r", "ri" } },
{ INDEX_op_shr_i64, { "r", "r", "ri" } },
{ INDEX_op_sar_i64, { "r", "r", "ri" } },
{ INDEX_op_rotl_i64, { "r", "r", "ri" } },
{ INDEX_op_rotr_i64, { "r", "r", "ri" } },
{ INDEX_op_mul_i64, { "r", "r", "r" } },
{ INDEX_op_div_i64, { "r", "r", "r" } },

4
tcg/ppc64/tcg-target.h
View File

@ -76,7 +76,7 @@ typedef enum {
/* optional instructions */
#define TCG_TARGET_HAS_div_i32 1
#define TCG_TARGET_HAS_rot_i32 0
#define TCG_TARGET_HAS_rot_i32 1
#define TCG_TARGET_HAS_ext8s_i32 1
#define TCG_TARGET_HAS_ext16s_i32 1
#define TCG_TARGET_HAS_bswap16_i32 0
@ -96,7 +96,7 @@ typedef enum {
#define TCG_TARGET_HAS_muls2_i32 0
#define TCG_TARGET_HAS_div_i64 1
#define TCG_TARGET_HAS_rot_i64 0
#define TCG_TARGET_HAS_rot_i64 1
#define TCG_TARGET_HAS_ext8s_i64 1
#define TCG_TARGET_HAS_ext16s_i64 1
#define TCG_TARGET_HAS_ext32s_i64 1