| Submitter | Richard Henderson |
|---|---|
| Date | March 5, 2013, 12:33 a.m. |
| Message ID | <1362443590-28191-18-git-send-email-rth@twiddle.net> |
| Download | mbox | patch |
| Permalink | /patch/224883/ |
| State | New |
| Headers | show |
Comments
On Mon, Mar 04, 2013 at 04:33:00PM -0800, Richard Henderson wrote: > Signed-off-by: Richard Henderson <rth@twiddle.net> > --- > tcg/ppc64/tcg-target.c | 35 +++++++++++++++++++++++++++++++++++ > tcg/ppc64/tcg-target.h | 2 +- > 2 files changed, 36 insertions(+), 1 deletion(-) > > diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c > index 723cc77..576effc 100644 > --- a/tcg/ppc64/tcg-target.c > +++ b/tcg/ppc64/tcg-target.c > @@ -1706,6 +1706,40 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args, > } > break; > > + case INDEX_op_bswap64_i64: > + a0 = args[0], a1 = args[1], a2 = 0; > + if (a0 == a1) { > + a0 = 0; > + a2 = a1; > + } > + > + /* a1 = # abcd efgh */ > + /* a0 = rl32(a1, 8) # 0000 fghe */ > + tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31); > + /* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */ > + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7); > + /* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */ > + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23); > + > + /* a0 = rl64(a0, 32) # hgfe 0000 */ > + /* a2 = rl64(a1, 32) # efgh abcd */ > + tcg_out_rld(s, RLDICL, a0, a0, 32, 0); > + tcg_out_rld(s, RLDICL, a2, a1, 32, 0); > + > + /* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */ > + tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31); > + /* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */ > + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7); > + /* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */ > + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23); > + > + if (a0 == 0) { > + tcg_out_mov(s, TCG_TYPE_I64, args[0], a0); > + /* Revert the source rotate that we performed above. */ > + tcg_out_rld(s, RLDICL, a1, a1, 32, 0); > + } > + break; > + > default: > tcg_dump_ops (s); > tcg_abort (); > @@ -1816,6 +1850,7 @@ static const TCGTargetOpDef ppc_op_defs[] = { > { INDEX_op_bswap16_i64, { "r", "r" } }, > { INDEX_op_bswap32_i32, { "r", "r" } }, > { INDEX_op_bswap32_i64, { "r", "r" } }, > + { INDEX_op_bswap64_i64, { "r", "r" } }, > > { -1 }, > }; > diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h > index bd011b8..d8e1820 100644 > --- a/tcg/ppc64/tcg-target.h > +++ b/tcg/ppc64/tcg-target.h > @@ -102,7 +102,7 @@ typedef enum { > #define TCG_TARGET_HAS_ext32u_i64 1 > #define TCG_TARGET_HAS_bswap16_i64 1 > #define TCG_TARGET_HAS_bswap32_i64 1 > -#define TCG_TARGET_HAS_bswap64_i64 0 > +#define TCG_TARGET_HAS_bswap64_i64 1 > #define TCG_TARGET_HAS_not_i64 1 > #define TCG_TARGET_HAS_neg_i64 1 > #define TCG_TARGET_HAS_andc_i64 0 Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Patch
diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index 723cc77..576effc 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -1706,6 +1706,40 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args, } break; + case INDEX_op_bswap64_i64: + a0 = args[0], a1 = args[1], a2 = 0; + if (a0 == a1) { + a0 = 0; + a2 = a1; + } + + /* a1 = # abcd efgh */ + /* a0 = rl32(a1, 8) # 0000 fghe */ + tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31); + /* a0 = dep(a0, rl32(a1, 24), 0xff000000) # 0000 hghe */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7); + /* a0 = dep(a0, rl32(a1, 24), 0x0000ff00) # 0000 hgfe */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23); + + /* a0 = rl64(a0, 32) # hgfe 0000 */ + /* a2 = rl64(a1, 32) # efgh abcd */ + tcg_out_rld(s, RLDICL, a0, a0, 32, 0); + tcg_out_rld(s, RLDICL, a2, a1, 32, 0); + + /* a0 = dep(a0, rl32(a2, 8), 0xffffffff) # hgfe bcda */ + tcg_out_rlw(s, RLWIMI, a0, a2, 8, 0, 31); + /* a0 = dep(a0, rl32(a2, 24), 0xff000000) # hgfe dcda */ + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 0, 7); + /* a0 = dep(a0, rl32(a2, 24), 0x0000ff00) # hgfe dcba */ + tcg_out_rlw(s, RLWIMI, a0, a2, 24, 16, 23); + + if (a0 == 0) { + tcg_out_mov(s, TCG_TYPE_I64, args[0], a0); + /* Revert the source rotate that we performed above. */ + tcg_out_rld(s, RLDICL, a1, a1, 32, 0); + } + break; + default: tcg_dump_ops (s); tcg_abort (); @@ -1816,6 +1850,7 @@ static const TCGTargetOpDef ppc_op_defs[] = { { INDEX_op_bswap16_i64, { "r", "r" } }, { INDEX_op_bswap32_i32, { "r", "r" } }, { INDEX_op_bswap32_i64, { "r", "r" } }, + { INDEX_op_bswap64_i64, { "r", "r" } }, { -1 }, }; diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h index bd011b8..d8e1820 100644 --- a/tcg/ppc64/tcg-target.h +++ b/tcg/ppc64/tcg-target.h @@ -102,7 +102,7 @@ typedef enum { #define TCG_TARGET_HAS_ext32u_i64 1 #define TCG_TARGET_HAS_bswap16_i64 1 #define TCG_TARGET_HAS_bswap32_i64 1 -#define TCG_TARGET_HAS_bswap64_i64 0 +#define TCG_TARGET_HAS_bswap64_i64 1 #define TCG_TARGET_HAS_not_i64 1 #define TCG_TARGET_HAS_neg_i64 1 #define TCG_TARGET_HAS_andc_i64 0
Signed-off-by: Richard Henderson <rth@twiddle.net> --- tcg/ppc64/tcg-target.c | 35 +++++++++++++++++++++++++++++++++++ tcg/ppc64/tcg-target.h | 2 +- 2 files changed, 36 insertions(+), 1 deletion(-)