diff mbox series

[v3,07/16] tcg/ppc: Fold away "noaddr" branch routines

Message ID 20181130215221.20554-8-richard.henderson@linaro.org
State Superseded
Headers show
Series tcg: Assorted cleanups | expand

Commit Message

Richard Henderson Nov. 30, 2018, 9:52 p.m. UTC
There is no longer a need for preserving branch offset operands,
as we no longer re-translate.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 tcg/ppc/tcg-target.inc.c | 25 +++++++------------------
 1 file changed, 7 insertions(+), 18 deletions(-)

-- 
2.17.2

Comments

Alex Bennée Dec. 3, 2018, 10:35 a.m. UTC | #1
Richard Henderson <richard.henderson@linaro.org> writes:

> There is no longer a need for preserving branch offset operands,

> as we no longer re-translate.

>

> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>


Reviewed-by: Alex Bennée <alex.bennee@linaro.org>


> ---

>  tcg/ppc/tcg-target.inc.c | 25 +++++++------------------

>  1 file changed, 7 insertions(+), 18 deletions(-)

>

> diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c

> index c2f729ee8f..2e2a22f579 100644

> --- a/tcg/ppc/tcg-target.inc.c

> +++ b/tcg/ppc/tcg-target.inc.c

> @@ -210,18 +210,6 @@ static void reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target)

>      *pc = (*pc & ~0xfffc) | reloc_pc14_val(pc, target);

>  }

>

> -static inline void tcg_out_b_noaddr(TCGContext *s, int insn)

> -{

> -    unsigned retrans = *s->code_ptr & 0x3fffffc;

> -    tcg_out32(s, insn | retrans);

> -}

> -

> -static inline void tcg_out_bc_noaddr(TCGContext *s, int insn)

> -{

> -    unsigned retrans = *s->code_ptr & 0xfffc;

> -    tcg_out32(s, insn | retrans);

> -}

> -

>  /* parse target specific constraints */

>  static const char *target_parse_constraint(TCGArgConstraint *ct,

>                                             const char *ct_str, TCGType type)

> @@ -1179,11 +1167,11 @@ static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond,

>  static void tcg_out_bc(TCGContext *s, int bc, TCGLabel *l)

>  {

>      if (l->has_value) {

> -        tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value_ptr));

> +        bc |= reloc_pc14_val(s->code_ptr, l->u.value_ptr);

>      } else {

>          tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0);

> -        tcg_out_bc_noaddr(s, bc);

>      }

> +    tcg_out32(s, bc);

>  }

>

>  static void tcg_out_brcond(TCGContext *s, TCGCond cond,

> @@ -1771,7 +1759,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)

>

>      /* Load a pointer into the current opcode w/conditional branch-link. */

>      label_ptr = s->code_ptr;

> -    tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);

> +    tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);

>

>      rbase = TCG_REG_R3;

>  #else  /* !CONFIG_SOFTMMU */

> @@ -1846,7 +1834,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)

>

>      /* Load a pointer into the current opcode w/conditional branch-link. */

>      label_ptr = s->code_ptr;

> -    tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);

> +    tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);

>

>      rbase = TCG_REG_R3;

>  #else  /* !CONFIG_SOFTMMU */

> @@ -2044,13 +2032,14 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,

>      case INDEX_op_br:

>          {

>              TCGLabel *l = arg_label(args[0]);

> +            uint32_t insn = B;

>

>              if (l->has_value) {

> -                tcg_out_b(s, 0, l->u.value_ptr);

> +                insn |= reloc_pc24_val(s->code_ptr, l->u.value_ptr);

>              } else {

>                  tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0);

> -                tcg_out_b_noaddr(s, B);

>              }

> +            tcg_out32(s, insn);

>          }

>          break;

>      case INDEX_op_ld8u_i32:



--
Alex Bennée
diff mbox series

Patch

diff --git a/tcg/ppc/tcg-target.inc.c b/tcg/ppc/tcg-target.inc.c
index c2f729ee8f..2e2a22f579 100644
--- a/tcg/ppc/tcg-target.inc.c
+++ b/tcg/ppc/tcg-target.inc.c
@@ -210,18 +210,6 @@  static void reloc_pc14(tcg_insn_unit *pc, tcg_insn_unit *target)
     *pc = (*pc & ~0xfffc) | reloc_pc14_val(pc, target);
 }
 
-static inline void tcg_out_b_noaddr(TCGContext *s, int insn)
-{
-    unsigned retrans = *s->code_ptr & 0x3fffffc;
-    tcg_out32(s, insn | retrans);
-}
-
-static inline void tcg_out_bc_noaddr(TCGContext *s, int insn)
-{
-    unsigned retrans = *s->code_ptr & 0xfffc;
-    tcg_out32(s, insn | retrans);
-}
-
 /* parse target specific constraints */
 static const char *target_parse_constraint(TCGArgConstraint *ct,
                                            const char *ct_str, TCGType type)
@@ -1179,11 +1167,11 @@  static void tcg_out_setcond(TCGContext *s, TCGType type, TCGCond cond,
 static void tcg_out_bc(TCGContext *s, int bc, TCGLabel *l)
 {
     if (l->has_value) {
-        tcg_out32(s, bc | reloc_pc14_val(s->code_ptr, l->u.value_ptr));
+        bc |= reloc_pc14_val(s->code_ptr, l->u.value_ptr);
     } else {
         tcg_out_reloc(s, s->code_ptr, R_PPC_REL14, l, 0);
-        tcg_out_bc_noaddr(s, bc);
     }
+    tcg_out32(s, bc);
 }
 
 static void tcg_out_brcond(TCGContext *s, TCGCond cond,
@@ -1771,7 +1759,7 @@  static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, bool is_64)
 
     /* Load a pointer into the current opcode w/conditional branch-link. */
     label_ptr = s->code_ptr;
-    tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
+    tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
 
     rbase = TCG_REG_R3;
 #else  /* !CONFIG_SOFTMMU */
@@ -1846,7 +1834,7 @@  static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, bool is_64)
 
     /* Load a pointer into the current opcode w/conditional branch-link. */
     label_ptr = s->code_ptr;
-    tcg_out_bc_noaddr(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
+    tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK);
 
     rbase = TCG_REG_R3;
 #else  /* !CONFIG_SOFTMMU */
@@ -2044,13 +2032,14 @@  static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
     case INDEX_op_br:
         {
             TCGLabel *l = arg_label(args[0]);
+            uint32_t insn = B;
 
             if (l->has_value) {
-                tcg_out_b(s, 0, l->u.value_ptr);
+                insn |= reloc_pc24_val(s->code_ptr, l->u.value_ptr);
             } else {
                 tcg_out_reloc(s, s->code_ptr, R_PPC_REL24, l, 0);
-                tcg_out_b_noaddr(s, B);
             }
+            tcg_out32(s, insn);
         }
         break;
     case INDEX_op_ld8u_i32: