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[Qemu-devel] [4507] Switch MIPS clo/clz and the condition tests to TCG.
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From: |
Thiemo Seufer |
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Subject: |
[Qemu-devel] [4507] Switch MIPS clo/clz and the condition tests to TCG. |
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Date: |
Wed, 21 May 2008 02:04:15 +0000 |
Revision: 4507
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4507
Author: ths
Date: 2008-05-21 02:04:15 +0000 (Wed, 21 May 2008)
Log Message:
-----------
Switch MIPS clo/clz and the condition tests to TCG.
Modified Paths:
--------------
trunk/target-mips/helper.h
trunk/target-mips/op.c
trunk/target-mips/op_helper.c
trunk/target-mips/translate.c
Modified: trunk/target-mips/helper.h
===================================================================
--- trunk/target-mips/helper.h 2008-05-21 02:02:39 UTC (rev 4506)
+++ trunk/target-mips/helper.h 2008-05-21 02:04:15 UTC (rev 4507)
@@ -1,3 +1,8 @@
void do_raise_exception_err(int excp, int err);
void do_raise_exception(int excp);
void do_interrupt_restart (void);
+
+void do_clo (void);
+void do_clz (void);
+void do_dclo (void);
+void do_dclz (void);
Modified: trunk/target-mips/op.c
===================================================================
--- trunk/target-mips/op.c 2008-05-21 02:02:39 UTC (rev 4506)
+++ trunk/target-mips/op.c 2008-05-21 02:04:15 UTC (rev 4507)
@@ -167,51 +167,6 @@
#undef MEMSUFFIX
#endif
-/* Logical */
-void op_clo (void)
-{
- T0 = clo32(T0);
- FORCE_RET();
-}
-
-void op_clz (void)
-{
- T0 = clz32(T0);
- FORCE_RET();
-}
-
-#if defined(TARGET_MIPS64)
-
-#if TARGET_LONG_BITS > HOST_LONG_BITS
-/* Those might call libgcc functions. */
-void op_dclo (void)
-{
- CALL_FROM_TB0(do_dclo);
- FORCE_RET();
-}
-
-void op_dclz (void)
-{
- CALL_FROM_TB0(do_dclz);
- FORCE_RET();
-}
-
-#else /* TARGET_LONG_BITS > HOST_LONG_BITS */
-
-void op_dclo (void)
-{
- T0 = clo64(T0);
- FORCE_RET();
-}
-
-void op_dclz (void)
-{
- T0 = clz64(T0);
- FORCE_RET();
-}
-#endif /* TARGET_LONG_BITS > HOST_LONG_BITS */
-#endif /* TARGET_MIPS64 */
-
/* 64 bits arithmetic */
#if TARGET_LONG_BITS > HOST_LONG_BITS
void op_mult (void)
@@ -524,29 +479,6 @@
FORCE_RET();
}
-/* Tests */
-#define OP_COND(name, cond) \
-void glue(op_, name) (void) \
-{ \
- if (cond) { \
- T0 = 1; \
- } else { \
- T0 = 0; \
- } \
- FORCE_RET(); \
-}
-
-OP_COND(eq, T0 == T1);
-OP_COND(ne, T0 != T1);
-OP_COND(ge, (target_long)T0 >= (target_long)T1);
-OP_COND(geu, T0 >= T1);
-OP_COND(lt, (target_long)T0 < (target_long)T1);
-OP_COND(ltu, T0 < T1);
-OP_COND(gez, (target_long)T0 >= 0);
-OP_COND(gtz, (target_long)T0 > 0);
-OP_COND(lez, (target_long)T0 <= 0);
-OP_COND(ltz, (target_long)T0 < 0);
-
/* Branches */
/* Branch to register */
void op_save_breg_target (void)
Modified: trunk/target-mips/op_helper.c
===================================================================
--- trunk/target-mips/op_helper.c 2008-05-21 02:02:39 UTC (rev 4506)
+++ trunk/target-mips/op_helper.c 2008-05-21 02:04:15 UTC (rev 4507)
@@ -71,6 +71,16 @@
}
}
+void do_clo (void)
+{
+ T0 = clo32(T0);
+}
+
+void do_clz (void)
+{
+ T0 = clz32(T0);
+}
+
#if defined(TARGET_MIPS64)
#if TARGET_LONG_BITS > HOST_LONG_BITS
/* Those might call libgcc functions. */
Modified: trunk/target-mips/translate.c
===================================================================
--- trunk/target-mips/translate.c 2008-05-21 02:02:39 UTC (rev 4506)
+++ trunk/target-mips/translate.c 2008-05-21 02:04:15 UTC (rev 4507)
@@ -655,6 +655,65 @@
FOP_CONDS(, ps)
FOP_CONDS(abs, ps)
+/* Tests */
+#define OP_COND(name, cond) \
+void glue(gen_op_, name) (void) \
+{ \
+ int l1 = gen_new_label(); \
+ int l2 = gen_new_label(); \
+ \
+ tcg_gen_brcond_tl(cond, cpu_T[0], cpu_T[1], l1); \
+ gen_op_set_T0(0); \
+ tcg_gen_br(l2); \
+ gen_set_label(l1); \
+ gen_op_set_T0(1); \
+ gen_set_label(l2); \
+}
+OP_COND(eq, TCG_COND_EQ);
+OP_COND(ne, TCG_COND_NE);
+OP_COND(ge, TCG_COND_GE);
+OP_COND(geu, TCG_COND_GEU);
+OP_COND(lt, TCG_COND_LT);
+OP_COND(ltu, TCG_COND_LTU);
+#undef OP_COND
+
+#define OP_CONDI(name, cond) \
+void glue(gen_op_, name) (target_ulong val) \
+{ \
+ int l1 = gen_new_label(); \
+ int l2 = gen_new_label(); \
+ \
+ tcg_gen_brcond_tl(cond, cpu_T[0], tcg_const_tl(val), l1); \
+ gen_op_set_T0(0); \
+ tcg_gen_br(l2); \
+ gen_set_label(l1); \
+ gen_op_set_T0(1); \
+ gen_set_label(l2); \
+}
+OP_CONDI(lti, TCG_COND_LT);
+OP_CONDI(ltiu, TCG_COND_LTU);
+#undef OP_CONDI
+
+#define OP_CONDZ(name, cond) \
+void glue(gen_op_, name) (void) \
+{ \
+ int l1 = gen_new_label(); \
+ int l2 = gen_new_label(); \
+ \
+ tcg_gen_brcond_tl(cond, cpu_T[0], tcg_const_tl(0), l1); \
+ gen_op_set_T0(0); \
+ tcg_gen_br(l2); \
+ gen_set_label(l1); \
+ gen_op_set_T0(1); \
+ gen_set_label(l2); \
+}
+OP_CONDZ(gez, TCG_COND_GE);
+OP_CONDZ(gtz, TCG_COND_GT);
+OP_CONDZ(lez, TCG_COND_LE);
+OP_CONDZ(ltz, TCG_COND_LT);
+#undef OP_CONDZ
+
+
typedef struct DisasContext {
struct TranslationBlock *tb;
target_ulong pc, saved_pc;
@@ -1375,11 +1434,11 @@
break;
#endif
case OPC_SLTI:
- gen_op_lt();
+ gen_op_lti(uimm);
opn = "slti";
break;
case OPC_SLTIU:
- gen_op_ltu();
+ gen_op_ltiu(uimm);
opn = "sltiu";
break;
case OPC_ANDI:
@@ -2160,20 +2219,20 @@
GEN_LOAD_REG_T0(rs);
switch (opc) {
case OPC_CLO:
- gen_op_clo();
+ tcg_gen_helper_0_0(do_clo);
opn = "clo";
break;
case OPC_CLZ:
- gen_op_clz();
+ tcg_gen_helper_0_0(do_clz);
opn = "clz";
break;
#if defined(TARGET_MIPS64)
case OPC_DCLO:
- gen_op_dclo();
+ tcg_gen_helper_0_0(do_dclo);
opn = "dclo";
break;
case OPC_DCLZ:
- gen_op_dclz();
+ tcg_gen_helper_0_0(do_dclz);
opn = "dclz";
break;
#endif
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