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authormalc <av1474@comtv.ru>2010-02-07 02:18:06 +0300
committermalc <av1474@comtv.ru>2010-02-07 02:18:06 +0300
commitb0809bf7ca99e445f7176d64b15e1c441f25e903 (patch)
treec08a16d3726a206a78582131f8cc28b0476f6af1 /tcg/ppc
parentbc5b6004588ad17370e0416e40b4aa9cf977023b (diff)
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tcg/ppc32: implement setcond[2]
Signed-off-by: malc <av1474@comtv.ru>
Diffstat (limited to 'tcg/ppc')
-rw-r--r--tcg/ppc/tcg-target.c171
1 files changed, 157 insertions, 14 deletions
diff --git a/tcg/ppc/tcg-target.c b/tcg/ppc/tcg-target.c
index 07e6941..274480e 100644
--- a/tcg/ppc/tcg-target.c
+++ b/tcg/ppc/tcg-target.c
@@ -316,6 +316,7 @@ static int tcg_target_const_match(tcg_target_long val,
#define STH OPCD(44)
#define STW OPCD(36)
+#define ADDIC OPCD(12)
#define ADDI OPCD(14)
#define ADDIS OPCD(15)
#define ORI OPCD(24)
@@ -339,6 +340,7 @@ static int tcg_target_const_match(tcg_target_long val,
#define CRANDC XO19(129)
#define CRNAND XO19(225)
#define CROR XO19(449)
+#define CRNOR XO19( 33)
#define EXTSB XO31(954)
#define EXTSH XO31(922)
@@ -365,6 +367,8 @@ static int tcg_target_const_match(tcg_target_long val,
#define MTSPR XO31(467)
#define SRAWI XO31(824)
#define NEG XO31(104)
+#define MFCR XO31( 19)
+#define CNTLZW XO31( 26)
#define LBZX XO31( 87)
#define LHZX XO31(279)
@@ -1065,20 +1069,10 @@ static void tcg_out_bc (TCGContext *s, int bc, int label_index)
}
}
-static void tcg_out_brcond (TCGContext *s, int cond,
- TCGArg arg1, TCGArg arg2, int const_arg2,
- int label_index)
+static void tcg_out_cr7eq_from_cond (TCGContext *s, const TCGArg *args,
+ const int *const_args)
{
- tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
- tcg_out_bc (s, tcg_to_bc[cond], label_index);
-}
-
-/* XXX: we implement it at the target level to avoid having to
- handle cross basic blocks temporaries */
-static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
- const int *const_args)
-{
- int cond = args[4], label_index = args[5], op;
+ int cond = args[4], op;
struct { int bit1; int bit2; int cond2; } bits[] = {
[TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
[TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
@@ -1116,8 +1110,147 @@ static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
default:
tcg_abort();
}
+}
+
+static void tcg_out_setcond (TCGContext *s, int cond, TCGArg arg0,
+ TCGArg arg1, TCGArg arg2, int const_arg2)
+{
+ int crop, sh, arg;
+
+ switch (cond) {
+ case TCG_COND_EQ:
+ if (const_arg2) {
+ if (!arg2) {
+ arg = arg1;
+ }
+ else {
+ arg = 0;
+ if ((uint16_t) arg2 == arg2) {
+ tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
+ }
+ else {
+ tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
+ tcg_out32 (s, XOR | SAB (arg1, 0, 0));
+ }
+ }
+ }
+ else {
+ arg = 0;
+ tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
+ }
+ tcg_out32 (s, CNTLZW | RS (arg) | RA (0));
+ tcg_out32 (s, (RLWINM
+ | RA (arg0)
+ | RS (0)
+ | SH (27)
+ | MB (5)
+ | ME (31)
+ )
+ );
+ return;
+
+ case TCG_COND_NE:
+ if (const_arg2) {
+ if (!arg2) {
+ arg = arg1;
+ }
+ else {
+ arg = 0;
+ if ((uint16_t) arg2 == arg2) {
+ tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2);
+ }
+ else {
+ tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
+ tcg_out32 (s, XOR | SAB (arg1, 0, 0));
+ }
+ }
+ }
+ else {
+ arg = 0;
+ tcg_out32 (s, XOR | SAB (arg1, 0, arg2));
+ }
+
+ if (arg == arg1 && arg1 == arg0) {
+ tcg_out32 (s, ADDIC | RT (0) | RA (arg) | 0xffff);
+ tcg_out32 (s, SUBFE | TAB (arg0, 0, arg));
+ }
+ else {
+ tcg_out32 (s, ADDIC | RT (arg0) | RA (arg) | 0xffff);
+ tcg_out32 (s, SUBFE | TAB (arg0, arg0, arg));
+ }
+ return;
+
+ case TCG_COND_LTU:
+ case TCG_COND_LT:
+ sh = 29;
+ crop = 0;
+ break;
+
+ case TCG_COND_GEU:
+ case TCG_COND_GE:
+ sh = 31;
+ crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_LT) | BB (7, CR_LT);
+ break;
+
+ case TCG_COND_LEU:
+ case TCG_COND_LE:
+ sh = 31;
+ crop = CRNOR | BT (7, CR_EQ) | BA (7, CR_GT) | BB (7, CR_GT);
+ break;
+
+ case TCG_COND_GTU:
+ case TCG_COND_GT:
+ sh = 30;
+ crop = 0;
+ break;
+
+ default:
+ tcg_abort ();
+ }
- tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), label_index);
+ tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
+ if (crop) tcg_out32 (s, crop);
+ tcg_out32 (s, MFCR | RT (0));
+ tcg_out32 (s, (RLWINM
+ | RA (arg0)
+ | RS (0)
+ | SH (sh)
+ | MB (31)
+ | ME (31)
+ )
+ );
+}
+
+static void tcg_out_setcond2 (TCGContext *s, const TCGArg *args,
+ const int *const_args)
+{
+ tcg_out_cr7eq_from_cond (s, args + 1, const_args + 1);
+ tcg_out32 (s, MFCR | RT (0));
+ tcg_out32 (s, (RLWINM
+ | RA (args[0])
+ | RS (0)
+ | SH (31)
+ | MB (31)
+ | ME (31)
+ )
+ );
+}
+
+static void tcg_out_brcond (TCGContext *s, int cond,
+ TCGArg arg1, TCGArg arg2, int const_arg2,
+ int label_index)
+{
+ tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
+ tcg_out_bc (s, tcg_to_bc[cond], label_index);
+}
+
+/* XXX: we implement it at the target level to avoid having to
+ handle cross basic blocks temporaries */
+static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
+ const int *const_args)
+{
+ tcg_out_cr7eq_from_cond (s, args, const_args);
+ tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), args[5]);
}
void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
@@ -1496,6 +1629,13 @@ static void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
break;
+ case INDEX_op_setcond_i32:
+ tcg_out_setcond (s, args[3], args[0], args[1], args[2], const_args[2]);
+ break;
+ case INDEX_op_setcond2_i32:
+ tcg_out_setcond2 (s, args, const_args);
+ break;
+
default:
tcg_dump_ops (s, stderr);
tcg_abort ();
@@ -1544,6 +1684,9 @@ static const TCGTargetOpDef ppc_op_defs[] = {
{ INDEX_op_neg_i32, { "r", "r" } },
+ { INDEX_op_setcond_i32, { "r", "r", "ri" } },
+ { INDEX_op_setcond2_i32, { "r", "r", "r", "ri", "ri" } },
+
#if TARGET_LONG_BITS == 32
{ INDEX_op_qemu_ld8u, { "r", "L" } },
{ INDEX_op_qemu_ld8s, { "r", "L" } },