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| author | Richard Henderson <rth@twiddle.net> | 2013-01-30 19:24:06 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2013-04-15 19:55:38 +0200 |
| commit | 313d91c778e9a2a684d5aacc09750421a6612416 (patch) | |
| tree | 1385433947a2e83df0ee4dcb213be08ba4b6f756 /tcg | |
| parent | 49d9870a54161b0c2cd29a8b70cf5aa6d3aed469 (diff) | |
| download | qemu-313d91c778e9a2a684d5aacc09750421a6612416.tar.gz qemu-313d91c778e9a2a684d5aacc09750421a6612416.tar.bz2 qemu-313d91c778e9a2a684d5aacc09750421a6612416.zip | |
tcg-ppc64: Implement rotates
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/ppc64/tcg-target.c | 39 | ||||
| -rw-r--r-- | tcg/ppc64/tcg-target.h | 4 |
2 files changed, 41 insertions, 2 deletions
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 0cb166716d..18338a2f02 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -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" } }, diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h index a4078aed0f..b2713a090c 100644 --- a/tcg/ppc64/tcg-target.h +++ b/tcg/ppc64/tcg-target.h @@ -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 |