X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=blobdiff_plain;f=src%2Fvm%2Fjit%2Fpowerpc%2Fdarwin%2Fmd-abi.c;h=bfb092b398ba61512cdc816031cc568b9c1dc880;hb=fa3fb41985bc911b5300f144b740159ac0c1eea0;hp=477100570f8d56d96c4ea3a2dd5826f049134168;hpb=87dcad8d32da0a2f59d26d465f35a50a8bfd8a6d;p=cacao.git diff --git a/src/vm/jit/powerpc/darwin/md-abi.c b/src/vm/jit/powerpc/darwin/md-abi.c index 477100570..bfb092b39 100644 --- a/src/vm/jit/powerpc/darwin/md-abi.c +++ b/src/vm/jit/powerpc/darwin/md-abi.c @@ -1,9 +1,7 @@ -/* src/vm/jit/powerpc/darwin/md-abi.c - functions for PowerPC Darwin ABI +/* src/vm/jit/powerpc/darwin/md-abi.c - PowerPC Darwin ABI - Copyright (C) 1996-2005, 2006 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 + Copyright (C) 1996-2005, 2006, 2007, 2008 + CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO This file is part of CACAO. @@ -22,30 +20,25 @@ 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 "config.h" -#include "vm/types.h" + +#include #include "vm/jit/powerpc/darwin/md-abi.h" -#include "vm/descriptor.h" +#include "vm/descriptor.hpp" #include "vm/global.h" + #include "vm/jit/abi.h" +#include "vm/jit/stack.h" /* register descripton arrays *************************************************/ -s4 nregdescint[] = { +int nregdescint[] = { /* zero, sp, t0, a0/v0, a0/v1, a2, a3, a4, */ REG_RES, REG_RES, REG_TMP, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, @@ -61,15 +54,50 @@ s4 nregdescint[] = { REG_END }; -char *regs[] = { +const char *abi_registers_integer_name[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", }; +const int abi_registers_integer_argument[] = { + 3, /* a0 */ + 4, /* a1 */ + 5, /* a2 */ + 6, /* a3 */ + 7, /* a4 */ + 8, /* a5 */ + 9, /* a6 */ + 10, /* a7 */ +}; + +const int abi_registers_integer_saved[] = { + 14, /* s0 */ + 15, /* s1 */ + 24, /* s2 */ + 25, /* s3 */ + 26, /* s4 */ + 27, /* s5 */ + 28, /* s6 */ + 29, /* s7 */ + 30, /* s8 */ + 31, /* s9 */ +}; + +const int abi_registers_integer_temporary[] = { + 2, /* t0 */ + 17, /* t1 */ + 18, /* t2 */ + 19, /* t3 */ + 20, /* t4 */ + 21, /* t5 */ + 22, /* t6 */ + 23, /* t7 */ +}; + -s4 nregdescfloat[] = { +int nregdescfloat[] = { /*ftmp3, fa0/v0, fa1, fa2, fa3, fa4, fa5, fa6, */ REG_RES, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, REG_ARG, @@ -85,6 +113,45 @@ s4 nregdescfloat[] = { REG_END }; +const int abi_registers_float_argument[] = { + 1, /* fa0 */ + 2, /* fa1 */ + 3, /* fa2 */ + 4, /* fa3 */ + 5, /* fa4 */ + 6, /* fa5 */ + 7, /* fa6 */ + 8, /* fa7 */ + 9, /* fa8 */ + 10, /* fa9 */ + 11, /* fa10 */ + 12, /* fa11 */ + 13, /* fa12 */ +}; + +const int abi_registers_float_saved[] = { + 14, /* fs0 */ + 15, /* fs1 */ + 24, /* fs2 */ + 25, /* fs3 */ + 26, /* fs4 */ + 27, /* fs5 */ + 28, /* fs6 */ + 29, /* fs7 */ + 30, /* fs8 */ + 31, /* fs9 */ +}; + +const int abi_registers_float_temporary[] = { + 17, /* ft5 */ + 18, /* ft6 */ + 19, /* ft7 */ + 20, /* ft8 */ + 21, /* ft9 */ + 22, /* ft10 */ + 23, /* ft11 */ +}; + /* md_param_alloc ************************************************************** @@ -106,15 +173,115 @@ s4 nregdescfloat[] = { void md_param_alloc(methoddesc *md) { paramdesc *pd; - s4 i; - s4 iarg; - s4 farg; - s4 stacksize; + int i; + int iarg; + int farg; + int stacksize; + + /* set default values */ + + iarg = 0; + farg = 0; + stacksize = LA_SIZE_IN_POINTERS; + + /* get params field of methoddesc */ + + pd = md->params; + + for (i = 0; i < md->paramcount; i++, pd++) { + switch (md->paramtypes[i].type) { + case TYPE_INT: + case TYPE_ADR: + if (iarg < INT_ARG_CNT) { + pd->inmemory = false; + pd->index = iarg; + pd->regoff = abi_registers_integer_argument[iarg]; + iarg++; + } + else { + pd->inmemory = true; + pd->index = stacksize; + pd->regoff = stacksize * 8; + stacksize++; + } + break; + + case TYPE_LNG: + if (iarg < INT_ARG_CNT - 1) { + pd->inmemory = false; + pd->index = PACK_REGS(iarg + 1, iarg); + pd->regoff = + PACK_REGS(abi_registers_integer_argument[iarg + 1], + abi_registers_integer_argument[iarg]); + iarg += 2; + } + else { + pd->inmemory = true; + pd->index = stacksize; + pd->regoff = stacksize * 8; + iarg = INT_ARG_CNT; + stacksize++; + } + break; + + case TYPE_FLT: + case TYPE_DBL: + if (farg < FLT_ARG_CNT) { + pd->inmemory = false; + pd->index = farg; + pd->regoff = abi_registers_float_argument[farg]; + farg++; + } + else { + pd->inmemory = true; + pd->index = stacksize; + pd->regoff = stacksize * 8; + stacksize++; + } + break; + } + } + + + /* Since R3/R4, F1 (==A0/A1, A0) are used for passing return values, this */ + /* argument register usage has to be regarded, too */ + + if (IS_INT_LNG_TYPE(md->returntype.type)) { + if (iarg < (IS_2_WORD_TYPE(md->returntype.type) ? 2 : 1)) + iarg = IS_2_WORD_TYPE(md->returntype.type) ? 2 : 1; + } + else { + if (IS_FLT_DBL_TYPE(md->returntype.type)) + if (farg < 1) + farg = 1; + } + + /* fill register and stack usage */ + + md->argintreguse = iarg; + md->argfltreguse = farg; + md->memuse = stacksize; +} + + +/* md_param_alloc_native ******************************************************* + + Pre-allocate arguments according the native ABI. + +*******************************************************************************/ + +void md_param_alloc_native(methoddesc *md) +{ + paramdesc *pd; + int i; + int iarg; + int farg; + int stacksize; /* set default values */ - iarg = 0; - farg = 0; + iarg = 0; + farg = 0; stacksize = LA_SIZE_IN_POINTERS; /* get params field of methoddesc */ @@ -127,12 +294,12 @@ void md_param_alloc(methoddesc *md) case TYPE_ADR: if (iarg < INT_ARG_CNT) { pd->inmemory = false; - pd->regoff = iarg; /* rd->arg[int|flt]regs index !! */ + pd->regoff = abi_registers_integer_argument[iarg]; iarg++; } else { pd->inmemory = true; - pd->regoff = stacksize; + pd->regoff = stacksize * 4; } stacksize++; break; @@ -140,14 +307,15 @@ void md_param_alloc(methoddesc *md) case TYPE_LNG: if (iarg < INT_ARG_CNT - 1) { pd->inmemory = false; - /* rd->arg[int|flt]regs index !! */ - pd->regoff = PACK_REGS(iarg + 1, iarg); + pd->regoff = + PACK_REGS(abi_registers_integer_argument[iarg + 1], + abi_registers_integer_argument[iarg]); iarg += 2; } else { pd->inmemory = true; - pd->regoff = stacksize; - iarg = INT_ARG_CNT; + pd->regoff = stacksize * 4; + iarg = INT_ARG_CNT; } stacksize += 2; break; @@ -155,13 +323,13 @@ void md_param_alloc(methoddesc *md) case TYPE_FLT: if (farg < FLT_ARG_CNT) { pd->inmemory = false; - pd->regoff = farg; /* rd->arg[int|flt]regs index !! */ + pd->regoff = abi_registers_float_argument[farg]; iarg++; /* skip 1 integer argument register */ farg++; } else { pd->inmemory = true; - pd->regoff = stacksize; + pd->regoff = stacksize * 4; } stacksize++; break; @@ -169,13 +337,13 @@ void md_param_alloc(methoddesc *md) case TYPE_DBL: if (farg < FLT_ARG_CNT) { pd->inmemory = false; - pd->regoff = farg; /* rd->arg[int|flt]regs index !! */ + pd->regoff = abi_registers_float_argument[farg]; iarg += 2; /* skip 2 integer argument registers */ farg++; } else { pd->inmemory = true; - pd->regoff = stacksize; + pd->regoff = stacksize * 4; } stacksize += 2; break; @@ -211,31 +379,31 @@ void md_param_alloc(methoddesc *md) for float/double) --- 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 + ->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. *******************************************************************************/ -void md_return_alloc(jitdata *jd, stackptr stackslot) +void md_return_alloc(jitdata *jd, stackelement_t* stackslot) { methodinfo *m; + codeinfo *code; registerdata *rd; methoddesc *md; /* get required compiler data */ - m = jd->m; - rd = jd->rd; + m = jd->m; + code = jd->code; + rd = jd->rd; md = m->parseddesc; @@ -243,14 +411,12 @@ void md_return_alloc(jitdata *jd, stackptr stackslot) their argument register -> so leafmethods with paramcount > 0 could already use R3 == a00! */ - if (!jd->isleafmethod || (md->paramcount == 0)) { + if (!code_is_leafmethod(code) || (md->paramcount == 0)) { /* Only precolor the stackslot, if it is not a SAVEDVAR <-> has 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)) { @@ -258,14 +424,12 @@ void md_return_alloc(jitdata *jd, stackptr stackslot) if (rd->argintreguse < 1) rd->argintreguse = 1; -/* stackslot->regoff = REG_RESULT; */ VAR(stackslot->varnum)->vv.regoff = REG_RESULT; } else { if (rd->argintreguse < 2) rd->argintreguse = 2; -/* stackslot->regoff = REG_RESULT_PACKED; */ VAR(stackslot->varnum)->vv.regoff = REG_RESULT_PACKED; } } @@ -273,7 +437,6 @@ void md_return_alloc(jitdata *jd, stackptr stackslot) if (rd->argfltreguse < 1) rd->argfltreguse = 1; -/* stackslot->regoff = REG_FRESULT; */ VAR(stackslot->varnum)->vv.regoff = REG_FRESULT; } } @@ -292,4 +455,5 @@ void md_return_alloc(jitdata *jd, stackptr stackslot) * c-basic-offset: 4 * tab-width: 4 * End: + * vim:noexpandtab:sw=4:ts=4: */