/* src/vm/jit/alpha/md-abi.c - functions for Alpha ABI
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
+ Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
J. Wenninger, Institut f. Computersprachen - TU Wien
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Christian Thalinger
-
- Changes: Christian Ullrich
-
- $Id: md-abi.c 5595 2006-09-30 23:06:36Z edwin $
-
*/
#include "vm/jit/alpha/md-abi.h"
-#include "vm/descriptor.h"
#include "vm/global.h"
+
#include "vm/jit/abi.h"
+#include "vmcore/descriptor.h"
+
/* register descripton array **************************************************/
REG_END
};
+const char *abi_registers_integer_name[] = {
+ "v0", "t0", "t1", "t2", "t3", "t4", "t5", "t6",
+ "t7", "s0", "s1", "s2", "s3", "s4", "s5", "s6",
+ "a0", "a1", "a2", "a3", "a4", "a5", "t8", "t9",
+ "t10", "t11", "ra", "pv", "at", "gp", "sp", "zero"
+};
+
+const s4 abi_registers_integer_argument[] = {
+ 16, /* a0 */
+ 17, /* a1 */
+ 18, /* a2 */
+ 19, /* a3 */
+ 20, /* a4 */
+ 21, /* a5 */
+};
+
+const s4 abi_registers_integer_saved[] = {
+ 9, /* s0 */
+ 10, /* s1 */
+ 11, /* s2 */
+ 12, /* s3 */
+ 13, /* s4 */
+ 14, /* s5 */
+ 15, /* s6 */
+};
+
+const s4 abi_registers_integer_temporary[] = {
+ 1, /* t0 */
+ 2, /* t1 */
+ 3, /* t2 */
+ 4, /* t3 */
+ 5, /* t4 */
+ 6, /* t5 */
+ 7, /* t6 */
+ 8, /* t7 */
+ 22, /* t8 */
+ 23, /* t9 */
+ 24, /* t10 */
+};
+
+
s4 nregdescfloat[] = {
REG_RET, REG_TMP, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV, REG_SAV,
REG_SAV, REG_SAV, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP, REG_TMP,
};
+const s4 abi_registers_float_argument[] = {
+ 16, /* fa0 */
+ 17, /* fa1 */
+ 18, /* fa2 */
+ 19, /* fa3 */
+ 20, /* fa4 */
+ 21, /* fa5 */
+};
+
+const s4 abi_registers_float_saved[] = {
+ 2, /* fs0 */
+ 3, /* fs1 */
+ 4, /* fs2 */
+ 5, /* fs3 */
+ 6, /* fs4 */
+ 7, /* fs5 */
+ 8, /* fs6 */
+ 9, /* fs7 */
+};
+
+const s4 abi_registers_float_temporary[] = {
+ 1, /* ft0 */
+ 10, /* ft1 */
+ 11, /* ft2 */
+ 12, /* ft3 */
+ 13, /* ft4 */
+ 14, /* ft5 */
+ 15, /* ft6 */
+ 22, /* ft7 */
+ 23, /* ft8 */
+ 24, /* ft9 */
+ 25, /* ft10 */
+ 26, /* ft11 */
+ 27, /* ft12 */
+};
+
+
/* md_param_alloc **************************************************************
Allocate the parameters of the given method descriptor according to the
/* set default values */
- reguse = 0;
+ reguse = 0;
stacksize = 0;
/* get params field of methoddesc */
case TYPE_LNG:
if (i < INT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->index = reguse;
+ pd->regoff = abi_registers_integer_argument[reguse];
reguse++;
md->argintreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->index = stacksize;
+ pd->regoff = stacksize * 8;
stacksize++;
}
break;
case TYPE_DBL:
if (i < FLT_ARG_CNT) {
pd->inmemory = false;
- pd->regoff = reguse;
+ pd->index = reguse;
+ pd->regoff = abi_registers_float_argument[reguse];
reguse++;
md->argfltreguse = reguse;
}
else {
pd->inmemory = true;
- pd->regoff = stacksize;
+ pd->index = stacksize;
+ pd->regoff = stacksize * 8;
stacksize++;
}
break;
}
+/* md_param_alloc_native *******************************************************
+
+ Pre-allocate arguments according to the native ABI.
+
+*******************************************************************************/
+
+void md_param_alloc_native(methoddesc *md)
+{
+ /* On Alpha we use the same ABI for JIT method calls as for native
+ method calls. */
+
+ md_param_alloc(md);
+}
+
+
/* md_return_alloc *************************************************************
Precolor the Java Stackelement containing the Return Value. Since
(SAVEDVAR)
--- in
- m: Methodinfo of current method
- return_type: Return Type of the Method (TYPE_INT.. TYPE_ADR)
- TYPE_VOID is not allowed!
+ jd: jitdata of the current method
stackslot: Java Stackslot to contain the Return Value
--- out
if precoloring was possible:
- jd->var[stackslot->varnum]->flags = PREALLOC
- ->regoff =[REG_RESULT|REG_FRESULT]
+ VAR(stackslot->varnum)->flags = PREALLOC
+ ->vv.regoff = [REG_RESULT|REG_FRESULT]
rd->arg[flt|int]reguse set to a value according the register usage
NOTE: Do not pass a LOCALVAR in stackslot->varnum.
/* get required compiler data */
- return;
-
m = jd->m;
md = m->parseddesc;
not to survive method invokations. */
if (!(stackslot->flags & SAVEDVAR)) {
-/* stackslot->varkind = ARGVAR; */
-/* stackslot->varnum = -1; */
-/* stackslot->flags = 0; */
VAR(stackslot->varnum)->flags = PREALLOC;
if (IS_INT_LNG_TYPE(md->returntype.type))
-/* stackslot->regoff = REG_RESULT; */
VAR(stackslot->varnum)->vv.regoff = REG_RESULT;
else
-/* stackslot->regoff = REG_FRESULT; */
VAR(stackslot->varnum)->vv.regoff = REG_FRESULT;
}
}
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