[Qemu-devel] [4438] temporary hack to handle register shortage with dyngen for qemu_st64 ()

[Fabrice Bellard]

Revision: 4438
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4438
Author:   bellard
Date:     2008-05-12 13:49:14 +0000 (Mon, 12 May 2008)

Log Message:
-----------
temporary hack to handle register shortage with dyngen for qemu_st64()

Modified Paths:
--------------
    trunk/tcg/tcg.c
    trunk/tcg/tcg.h

Modified: trunk/tcg/tcg.c
===================================================================
--- trunk/tcg/tcg.c     2008-05-12 12:23:31 UTC (rev 4437)
+++ trunk/tcg/tcg.c     2008-05-12 13:49:14 UTC (rev 4438)
@@ -308,6 +308,45 @@
     return MAKE_TCGV(idx);
 }
 
+#if TCG_TARGET_REG_BITS == 32
+/* temporary hack to avoid register shortage for tcg_qemu_st64() */
+TCGv tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2, 
+                              const char *name)
+{
+    TCGContext *s = &tcg_ctx;
+    TCGTemp *ts;
+    int idx;
+    char buf[64];
+
+    if (type != TCG_TYPE_I64)
+        tcg_abort();
+    idx = s->nb_globals;
+    tcg_temp_alloc(s, s->nb_globals + 2);
+    ts = &s->temps[s->nb_globals];
+    ts->base_type = type;
+    ts->type = TCG_TYPE_I32;
+    ts->fixed_reg = 1;
+    ts->reg = reg1;
+    ts->val_type = TEMP_VAL_REG;
+    pstrcpy(buf, sizeof(buf), name);
+    pstrcat(buf, sizeof(buf), "_0");
+    ts->name = strdup(buf);
+
+    ts++;
+    ts->base_type = type;
+    ts->type = TCG_TYPE_I32;
+    ts->fixed_reg = 1;
+    ts->reg = reg2;
+    ts->val_type = TEMP_VAL_REG;
+    pstrcpy(buf, sizeof(buf), name);
+    pstrcat(buf, sizeof(buf), "_1");
+    ts->name = strdup(buf);
+
+    s->nb_globals += 2;
+    return MAKE_TCGV(idx);
+}
+#endif
+
 TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset,
                         const char *name)
 {

Modified: trunk/tcg/tcg.h
===================================================================
--- trunk/tcg/tcg.h     2008-05-12 12:23:31 UTC (rev 4437)
+++ trunk/tcg/tcg.h     2008-05-12 13:49:14 UTC (rev 4438)
@@ -267,6 +267,8 @@
                    tcg_target_long start, tcg_target_long size);
 void tcg_set_macro_func(TCGContext *s, TCGMacroFunc *func);
 TCGv tcg_global_reg_new(TCGType type, int reg, const char *name);
+TCGv tcg_global_reg2_new_hack(TCGType type, int reg1, int reg2, 
+                              const char *name);
 TCGv tcg_global_mem_new(TCGType type, int reg, tcg_target_long offset,
                         const char *name);
 TCGv tcg_temp_new(TCGType type);