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tnt_smt2.c
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#include "pub_tool_basics.h"
#include "pub_tool_hashtable.h" // For tnt_include.h, VgHashtable
#include "pub_tool_libcassert.h" // tl_assert
#include "pub_tool_libcbase.h" // VG_strcpy
#include "pub_tool_libcprint.h" // VG_(printf)
#include "pub_tool_machine.h" // IRStmt
#include "pub_tool_tooliface.h" // VG_(CallbackClosure)
#include "tnt_include.h"
//char *TNT_(smt2_concat)( char *buf, ULong addr, UInt c );
//void TNT_(smt2_binop_tt_10) ( IRStmt *clone );
//void TNT_(smt2_binop_tt_01) ( IRStmt *clone );
//void TNT_(smt2_binop_tt_11) ( IRStmt *clone );
const Int SMT2_ty[] = {
0,
1,
8,
16,
32,
64,
128, /* 128-bit scalar */
32, /* IEEE 754 float */
64, /* IEEE 754 double */
32, /* 32-bit Decimal floating point */
64, /* 64-bit Decimal floating point */
128, /* 128-bit Decimal floating point */
128, /* 128-bit floating point; implementation defined */
128, /* 128-bit SIMD */
256 /* 256-bit SIMD */
};
// Array for tracking tmp variable types
UInt *tt; //[TI_MAX];
void TNT_(smt2_preamble)()
{
VG_(printf)("(set-logic QF_BV)\n");
}
// Get the concrete value (1 byte) of an address location
#define a2v16(v, c) \
(UInt)((v >> ((1-(c))*8)) & 0xff)
#define a2t16(t, c) \
(t >> ((1-(c))*8)) & 0xff
#define a2v32(v, c) \
(UInt)((v >> ((3-(c))*8)) & 0xff)
#define a2t32(t, c) \
(t >> ((3-(c))*8)) & 0xff
#define a2v64(v, c) \
(UInt)((v >> ((7-(c))*8)) & 0xff)
#define a2t64(t, c) \
(t >> ((7-(c))*8)) & 0xff
static char *tnt_smt2_concat_16( char *buf, ULong addr, UInt c, UInt v, UInt t )
{
char tmp[1024];
if ( c == 0 )
{
if ( a2t16(t,c) )
VG_(sprintf)(tmp, "a%llx", addr);
else
VG_(sprintf)(tmp, "#x%02x", a2v16(v,c));
if ( a2t16(t,c+1) )
VG_(sprintf)(buf, "(concat %s a%llx)", tmp, addr+1);
else
VG_(sprintf)(buf, "(concat %s #x%02x)", tmp, a2v16(v,c+1));
return buf;
}
if ( a2t16(t,c+1) )
VG_(sprintf)(tmp, "(concat a%llx %s)", addr, tnt_smt2_concat_16(buf, addr+1, c-1, v, t) );
else
VG_(sprintf)(tmp, "(concat #x%02x %s)", a2v16(v,c+1), tnt_smt2_concat_16(buf, addr+1, c-1, v, t) );
VG_(strcpy)(buf, tmp);
return buf;
}
static char *tnt_smt2_concat_32( char *buf, ULong addr, UInt c, UInt v, UInt t )
{
char tmp[1024];
if ( c == 0 )
{
if ( a2t32(t,c) )
VG_(sprintf)(tmp, "a%llx", addr);
else
VG_(sprintf)(tmp, "#x%02x", a2v32(v,c));
if ( a2t32(t,c+1) )
VG_(sprintf)(buf, "(concat %s a%llx)", tmp, addr+1);
else
VG_(sprintf)(buf, "(concat %s #x%02x)", tmp, a2v32(v,c+1));
return buf;
}
if ( a2t32(t,c+1) )
VG_(sprintf)(tmp, "(concat a%llx %s)", addr, tnt_smt2_concat_32(buf, addr+1, c-1, v, t) );
else
VG_(sprintf)(tmp, "(concat #x%02x %s)", a2v32(v,c+1), tnt_smt2_concat_32(buf, addr+1, c-1, v, t) );
VG_(strcpy)(buf, tmp);
return buf;
}
static char *tnt_smt2_concat_64( char *buf, ULong addr, UInt c, ULong v, ULong t )
{
char tmp[1024];
if ( c == 0 )
{
if ( a2t64(t,c) )
VG_(sprintf)(tmp, "a%llx", addr);
else
VG_(sprintf)(tmp, "#x%02x", a2v64(v,c));
if ( a2t64(t,c+1) )
VG_(sprintf)(buf, "(concat %s a%llx)", tmp, addr+1);
else
VG_(sprintf)(buf, "(concat %s #x%02x)", tmp, a2v64(v,c+1));
return buf;
}
if ( a2t64(t,c+1) )
VG_(sprintf)(tmp, "(concat a%llx %s)", addr, tnt_smt2_concat_64(buf, addr+1, c-1, v, t) );
else
VG_(sprintf)(tmp, "(concat #x%02x %s)", a2v64(v,c+1), tnt_smt2_concat_64(buf, addr+1, c-1, v, t) );
VG_(strcpy)(buf, tmp);
return buf;
}
static char *tnt_smt2_concat_indexed( char *buf, UInt t, UInt c, UInt max )
{
char tmp[1024];
if ( c == 0 )
{
VG_(sprintf)(buf, "(concat t%d_%d_%d t%d_%d_%d)", (int)t, (int)_ti(t), (int)(max-c), (int)t, (int)_ti(t), (int)(max-c+1));
return buf;
}
VG_(sprintf)(tmp, "(concat t%d_%d_%d %s)", (int)t, (int)_ti(t), (int)(max-c), tnt_smt2_concat_indexed(buf, t, c-1, max) );
VG_(strcpy)(buf, tmp);
return buf;
}
// if tmp GOTO ...
void TNT_(smt2_exit) ( IRStmt *clone )
{
IRExpr *guard = clone->Ist.Exit.guard;
UInt gtmp = guard->Iex.RdTmp.tmp;
// Save current assertions
VG_(printf)("(push)\n");
// Invert branch
if ( tv[gtmp] ) {
VG_(printf)("(assert (= t%d_%d #b0))\n", (int)gtmp, (int)_ti(gtmp));
} else {
VG_(printf)("(assert (= t%d_%d #b1))\n", (int)gtmp, (int)_ti(gtmp));
}
VG_(printf)("(check-sat)\n(get-model)\n");
// Restore assertions
VG_(printf)("(pop)\n");
// Add original branch condition
if ( tv[gtmp] ) {
VG_(printf)("(assert (= t%d_%d #b1))\n", (int)gtmp, (int)_ti(gtmp));
} else {
VG_(printf)("(assert (= t%d_%d #b0))\n", (int)gtmp, (int)_ti(gtmp));
}
}
static void tnt_smt2_loadstore_atmp ( UInt atmp, ULong address )
{
// Save current assertions
VG_(printf)("(push)\n");
// Invert branch
if ( tt[atmp] == 32 )
VG_(printf)("(assert (not (= t%d_%d #x%08llx)))\n", (int)atmp, (int)_ti(atmp), address);
else if ( tt[atmp] == 64 )
VG_(printf)("(assert (not (= t%d_%d #x%016llx)))\n", (int)atmp, (int)_ti(atmp), address);
else
tl_assert(0);
VG_(printf)("(check-sat)\n(get-model)\n");
// Restore assertions
VG_(printf)("(pop)\n");
// Add original branch condition
if ( tt[atmp] == 32 )
VG_(printf)("(assert (= t%d_%d #x%08llx))\n", (int)atmp, (int)_ti(atmp), address);
else if ( tt[atmp] == 64 )
VG_(printf)("(assert (= t%d_%d #x%016llx))\n", (int)atmp, (int)_ti(atmp), address);
else
tl_assert(0);
}
static void tnt_smt2_load_ltmp_32 ( UInt ltmp, UInt ty, ULong address, UInt value, UInt taint )
{
char buf[1024];
VG_(printf)("(declare-fun t%d_%d () (_ BitVec %d))\n", (int)ltmp, (int)_ti(ltmp), SMT2_ty[ty]);
if ( SMT2_ty[ty] == 128 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_32(buf, address, 14, value, taint) );
} else if ( SMT2_ty[ty] == 64 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_32(buf, address, 6, value, taint) );
} else if ( SMT2_ty[ty] == 32 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_32(buf, address, 2, value, taint) );
} else if ( SMT2_ty[ty] == 16 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_16(buf, address, 0, value, taint) );
} else if ( SMT2_ty[ty] == 8 )
{
VG_(printf)("(assert (= t%d_%d a%llx))\n", (int)ltmp, (int)_ti(ltmp), address );
} else {
VG_(printf)("smt2_load_t: SMT2_ty[ty] = %d not yet supported\n", SMT2_ty[ty]);
tl_assert(0);
}
}
static void tnt_smt2_load_ltmp_64 ( UInt ltmp, UInt ty, ULong address, ULong value, ULong taint )
{
char buf[1024];
VG_(printf)("(declare-fun t%d_%d () (_ BitVec %d))\n", (int)ltmp, (int)_ti(ltmp), SMT2_ty[ty]);
if ( SMT2_ty[ty] == 128 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_64(buf, address, 14, value, taint) );
} else if ( SMT2_ty[ty] == 64 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_64(buf, address, 6, value, taint) );
} else if ( SMT2_ty[ty] == 32 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_32(buf, address, 2, value, taint) );
} else if ( SMT2_ty[ty] == 16 )
{
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_16(buf, address, 0, value, taint) );
} else if ( SMT2_ty[ty] == 8 )
{
VG_(printf)("(assert (= t%d_%d a%llx))\n", (int)ltmp, (int)_ti(ltmp), address );
} else {
VG_(printf)("smt2_load_t: SMT2_ty[ty] = %d not yet supported\n", SMT2_ty[ty]);
tl_assert(0);
}
}
// ltmp = LOAD <ty> const
void TNT_(smt2_load) ( IRStmt *clone, UWord value, UWord taint )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt ty = clone->Ist.WrTmp.data->Iex.Load.ty - Ity_INVALID;
IRExpr* addr = clone->Ist.WrTmp.data->Iex.Load.addr;
UWord address;
if (addr->tag == Iex_RdTmp) {
UInt atmp = addr->Iex.RdTmp.tmp;
address = tv[atmp];
if ( is_tainted(atmp) )
tnt_smt2_loadstore_atmp ( atmp, address );
} else {
address = extract_IRConst(addr->Iex.Const.con);
}
if ( is_tainted(ltmp) ) {
if (sizeof(UWord) == 4)
tnt_smt2_load_ltmp_32 ( ltmp, ty, address, value, taint );
else if (sizeof(UWord) == 8)
tnt_smt2_load_ltmp_64 ( ltmp, ty, address, value, taint );
}
tt[ltmp] = SMT2_ty[ty];
}
static void tnt_smt2_store_dtmp( UInt dtmp, ULong address )
{
tl_assert( tt[dtmp] );
int numbytes = tt[dtmp]/8, i;
for ( i=0; i<numbytes; i++ )
{
VG_(printf)("(declare-fun a%llx () (_ BitVec 8))\n", address+i);
VG_(printf)("(assert (= a%llx ((_ extract %d %d) t%d_%d)))\n", address+i, ((i+1)*8)-1, i*8, (int)dtmp, (int)_ti(dtmp) );
}
}
// STORE addr = data
void TNT_(smt2_store) ( IRStmt *clone )
{
IRExpr *addr = clone->Ist.Store.addr;
IRExpr *data = clone->Ist.Store.data;
UWord address;
if (addr->tag == Iex_RdTmp) {
UInt atmp = addr->Iex.RdTmp.tmp;
address = tv[atmp];
if ( is_tainted(atmp) )
tnt_smt2_loadstore_atmp ( atmp, address );
} else {
address = extract_IRConst(addr->Iex.Const.con);
}
if (data->tag == Iex_RdTmp) {
UInt dtmp = data->Iex.RdTmp.tmp;
if ( is_tainted(dtmp) )
tnt_smt2_store_dtmp ( dtmp, address );
}
}
#define smt2_sign_extend(a, b) \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #b "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d ((_ sign_extend " #a ") t%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = b
#define smt2_zero_extend(a, b) \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #b "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d ((_ zero_extend " #a ") t%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = b
#define smt2_extract(a, b, c) \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #c "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d ((_ extract " #b " " #a ") t%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = c
#define smt2_unop(a, b) \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #b "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (" #a " t%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = b
// PMOVMSKB http://x86.renejeschke.de/html/file_module_x86_id_243.html
#define smt2_getmsbsMxN(ty) \
{ \
int i; char buf[512]; \
tl_assert(tt[rtmp] == (ty*8)); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
for ( i=0; i<ty; i++ ) { \
VG_(printf)("(declare-fun t%d_%d_%d () (_ BitVec 1))\n", (int)ltmp, (int)_ti(ltmp), i); \
VG_(printf)("(assert (= t%d_%d_%d ((_ extract %d %d) t%d_%d) ))\n", (int)ltmp, (int)_ti(ltmp), i, (i+1)*8-1, (i+1)*8-1, (int)rtmp, (int)_ti(rtmp) ); \
} \
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_indexed(buf, (int)ltmp, ty-2, ty-2) ); \
tt[ltmp] = ty; \
}
// ctz32 https://github.com/agocke/qemu/blob/master/host-utils.h
#define smt2_ctz64(ty) \
{ \
unsigned int mask = 0xFFFFFFFF, shift = 32; \
int i; \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
/* cnt = 0; */ \
VG_(printf)("(declare-fun t%d_%d_cnt0 () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d_cnt0 #x%016x))\n", (int)ltmp, (int)_ti(ltmp), 0U); \
VG_(printf)("(declare-fun t%d_%d_sh0 () (_ BitVec " #ty "))\n", (int)rtmp, (int)_ti(rtmp)); \
VG_(printf)("(assert (= t%d_%d_sh0 t%d_%d))\n", (int)rtmp, (int)_ti(rtmp), (int)rtmp, (int)_ti(rtmp)); \
for ( i=0; i<6; i++ ) { \
/* if (!(val & 0xFFFFFFFF)) */ \
VG_(printf)("(declare-fun t%d_%d_%d () (_ BitVec 1))\n", (int)rtmp, (int)_ti(rtmp), i); \
VG_(printf)("(assert (= t%d_%d_%d (bvnot (bvand t%d_%d_sh%d #x%016x))))\n", (int)rtmp, (int)_ti(rtmp), i, (int)rtmp, (int)_ti(rtmp), i, mask); \
/* cnt += 32; */ \
VG_(printf)("(declare-fun t%d_%d_cnt%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp), i+1); \
VG_(printf)("(assert (= t%d_%d_cnt%d (bvadd t%d_%d_cnt%d (ite t%d_%d_%d #x%016x #x%016x))))\n", (int)ltmp, (int)_ti(ltmp), i+1, (int)ltmp, (int)_ti(ltmp), i, (int)rtmp, (int)_ti(rtmp), i, (unsigned)shift, 0U); \
/* val >>= 32; */ \
VG_(printf)("(declare-fun t%d_%d_sh%d () (_ BitVec " #ty "))\n", (int)rtmp, (int)_ti(rtmp), i+1); \
VG_(printf)("(assert (= t%d_%d_sh%d (bvshr t%d_%d_sh%d (ite t%d_%d_%d #x%016x #x%016x))))\n", (int)rtmp, (int)_ti(rtmp), i+1, (int)rtmp, (int)_ti(rtmp), i, (int)rtmp, (int)_ti(rtmp), i, shift, 0U); \
shift /= 2; \
mask >>= shift; \
} \
/* if (!(val & 0x1)) */ \
VG_(printf)("(declare-fun t%d_%d_6 () (_ BitVec 1))\n", (int)rtmp, (int)_ti(rtmp)); \
VG_(printf)("(assert (= t%d_%d_6 (bvnot (bvand t%d_%d_sh6 #x%016x))))\n", (int)rtmp, (int)_ti(rtmp), (int)rtmp, (int)_ti(rtmp), 1U); \
/* cnt += 1; */ \
VG_(printf)("(assert (= t%d_%d (bvadd t%d_%d_cnt6 (ite t%d_%d_6 #x%016x #x%016x))))\n", (int)ltmp, (int)_ti(ltmp), (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp), 1U, 0U); \
tt[ltmp] = ty; \
}
// ltmp = <op> rtmp
void TNT_(smt2_unop_t) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Unop.op;
IRExpr* arg = clone->Ist.WrTmp.data->Iex.Unop.arg;
UInt rtmp = arg->Iex.RdTmp.tmp;
switch(op) {
case Iop_1Sto8: smt2_sign_extend(7, 8); break;
case Iop_1Sto16: smt2_sign_extend(15, 16); break;
case Iop_1Sto32: smt2_sign_extend(31, 32); break;
case Iop_1Sto64: smt2_sign_extend(63, 64); break;
case Iop_1Uto8: smt2_zero_extend(7, 8); break;
case Iop_1Uto32: smt2_zero_extend(31, 32); break;
case Iop_1Uto64: smt2_zero_extend(63, 64); break;
case Iop_8Sto16: smt2_sign_extend(8, 16); break;
case Iop_8Sto32: smt2_sign_extend(24, 32); break;
case Iop_8Sto64: smt2_sign_extend(56, 64); break;
case Iop_8Uto16: smt2_zero_extend(8, 16); break;
case Iop_8Uto32: smt2_zero_extend(24, 32); break;
case Iop_8Uto64: smt2_zero_extend(56, 64); break;
case Iop_16to8: smt2_extract(0, 7, 8); break;
case Iop_16HIto8: smt2_extract(8, 15, 8); break;
case Iop_16Sto32: smt2_sign_extend(16, 32); break;
case Iop_16Sto64: smt2_sign_extend(48, 64); break;
case Iop_16Uto32: smt2_zero_extend(16, 32); break;
case Iop_16Uto64: smt2_zero_extend(48, 64); break;
case Iop_32to1: smt2_extract(0, 0, 1); break;
case Iop_32to8: smt2_extract(0, 7, 8); break;
case Iop_32to16: smt2_extract(0, 15, 16); break;
case Iop_32HIto16: smt2_extract(16, 31, 16); break;
case Iop_32Sto64: smt2_sign_extend(32, 64); break;
case Iop_32Uto64: smt2_zero_extend(32, 64); break;
case Iop_64to1: smt2_extract(0, 0, 1); break;
case Iop_64to8: smt2_extract(0, 7, 8); break;
case Iop_64to16: smt2_extract(0, 15, 16); break;
case Iop_64to32: smt2_extract(0, 31, 32); break;
case Iop_64HIto32: smt2_extract(32, 63, 32); break;
case Iop_128to64: smt2_extract(0, 63, 64); break;
case Iop_128HIto64: smt2_extract(64, 127, 64); break;
case Iop_Ctz64: smt2_ctz64(64); break;
case Iop_GetMSBs8x8: smt2_getmsbsMxN(8) break;
case Iop_GetMSBs8x16: smt2_getmsbsMxN(16) break;
case Iop_Not1: smt2_unop(bvnot, 1); break;
case Iop_Not8: smt2_unop(bvnot, 8); break;
case Iop_Not16: smt2_unop(bvnot, 16); break;
case Iop_Not32: smt2_unop(bvnot, 32); break;
case Iop_Not64: smt2_unop(bvnot, 64); break;
default:
VG_(printf)("smt2_unop_t: ");
ppIROp(op);
VG_(printf)(" not yet supported\n");
tl_assert(0);
}
}
#define smt2_binop_tc_add(ty, zeros, op) \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (" #op " t%d_%d #x%0" #zeros "llx) ))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp), c ); \
tt[ltmp] = ty
#define smt2_binop_tc_cmp(ty, zeros, op) \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec 1))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (ite (" #op " t%d_%d #x%0" #zeros "llx) #b1 #b0) ))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp), c ); \
tt[ltmp] = 1
// PCMPEQB http://x86.renejeschke.de/html/file_module_x86_id_234.html
#define smt2_binop_tc_cmpMxN(m, n, ty, zeros, op) \
{ \
int i; char buf[512]; \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
for ( i=0; i<n; i++ ) { \
VG_(printf)("(declare-fun t%d_%d_%d () (_ BitVec " #m "))\n", (int)ltmp, (int)_ti(ltmp), i); \
VG_(printf)("(assert (= t%d_%d_%d (ite (" #op " ((_ extract %d %d) t%d_%d) #x%0" #zeros "llx) #xff #x00) ))\n", (int)ltmp, (int)_ti(ltmp), i, (i+1)*m-1, i*m, (int)rtmp, (int)_ti(rtmp), c ); \
} \
VG_(printf)("(assert (= t%d_%d %s))\n", (int)ltmp, (int)_ti(ltmp), tnt_smt2_concat_indexed(buf, (int)ltmp, n-2, n-2) ); \
tt[ltmp] = ty; \
}
#define smt2_binop_ct_add(ty, zeros, op) \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #ty "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (" #op " #x%0" #zeros "llx t%d_%d) ))\n", (int)ltmp, (int)_ti(ltmp), c, (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = ty
#define smt2_binop_ct_cmp(ty, zeros, op) \
tl_assert(tt[rtmp] == ty); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec 1))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (ite (" #op " #x%0" #zeros "llx t%d_%d) #b1 #b0) ))\n", (int)ltmp, (int)_ti(ltmp), c, (int)rtmp, (int)_ti(rtmp) ); \
tt[ltmp] = 1
static void tnt_smt2_binop_tc_common ( UInt op, UInt ltmp, UInt rtmp, ULong c ) {
switch(op) {
case Iop_Add8: smt2_binop_tc_add( 8, 2, bvadd); break;
case Iop_Add16: smt2_binop_tc_add(16, 4, bvadd); break;
case Iop_Add32: smt2_binop_tc_add(32, 8, bvadd); break;
case Iop_Add64: smt2_binop_tc_add(64, 16, bvadd); break;
case Iop_And8: smt2_binop_tc_add( 8, 2, bvand); break;
case Iop_And16: smt2_binop_tc_add(16, 4, bvand); break;
case Iop_And32: smt2_binop_tc_add(32, 8, bvand); break;
case Iop_And64: smt2_binop_tc_add(64, 16, bvand); break;
case Iop_CmpEQ8: smt2_binop_tc_cmp( 8, 2, =); break;
case Iop_CmpEQ8x16:smt2_binop_tc_cmpMxN(8,16,128,2,=) break;
case Iop_CmpEQ16: smt2_binop_tc_cmp(16, 4, =); break;
case Iop_CmpEQ32: smt2_binop_tc_cmp(32, 8, =); break;
case Iop_CmpEQ64: smt2_binop_tc_cmp(64, 16, =); break;
case Iop_CmpLE32S: smt2_binop_tc_cmp(32, 8, bvsle); break;
case Iop_CmpLE64S: smt2_binop_tc_cmp(64, 16, bvsle); break;
case Iop_CmpLE32U: smt2_binop_tc_cmp(32, 8, bvule); break;
case Iop_CmpLE64U: smt2_binop_tc_cmp(64, 16, bvule); break;
case Iop_CmpLT32S: smt2_binop_tc_cmp(32, 8, bvslt); break;
case Iop_CmpLT64S: smt2_binop_tc_cmp(64, 16, bvslt); break;
case Iop_CmpLT32U: smt2_binop_tc_cmp(32, 8, bvult); break;
case Iop_CmpLT64U: smt2_binop_tc_cmp(64, 16, bvult); break;
case Iop_Or8: smt2_binop_tc_add( 8, 2, bvor); break;
case Iop_Or16: smt2_binop_tc_add(16, 4, bvor); break;
case Iop_Or32: smt2_binop_tc_add(32, 8, bvor); break;
case Iop_Or64: smt2_binop_tc_add(64, 16, bvor); break;
case Iop_Sar8: smt2_binop_tc_add( 8, 2, bvashr); break;
case Iop_Sar16: smt2_binop_tc_add(16, 4, bvashr); break;
case Iop_Sar32: smt2_binop_tc_add(32, 8, bvashr); break;
case Iop_Sar64: smt2_binop_tc_add(64, 16, bvashr); break;
case Iop_Shl8: smt2_binop_tc_add( 8, 2, bvshl); break;
case Iop_Shl16: smt2_binop_tc_add(16, 4, bvshl); break;
case Iop_Shl32: smt2_binop_tc_add(32, 8, bvshl); break;
case Iop_Shl64: smt2_binop_tc_add(64, 16, bvshl); break;
case Iop_Shr8: smt2_binop_tc_add( 8, 2, bvlshr); break;
case Iop_Shr16: smt2_binop_tc_add(16, 4, bvlshr); break;
case Iop_Shr32: smt2_binop_tc_add(32, 8, bvlshr); break;
case Iop_Shr64: smt2_binop_tc_add(64, 16, bvlshr); break;
case Iop_Sub8: smt2_binop_tc_add( 8, 2, bvsub); break;
case Iop_Sub16: smt2_binop_tc_add(16, 4, bvsub); break;
case Iop_Sub32: smt2_binop_tc_add(32, 8, bvsub); break;
case Iop_Sub64: smt2_binop_tc_add(64, 16, bvsub); break;
case Iop_Xor8: smt2_binop_tc_add( 8, 2, bvxor); break;
case Iop_Xor16: smt2_binop_tc_add(16, 4, bvxor); break;
case Iop_Xor32: smt2_binop_tc_add(32, 8, bvxor); break;
case Iop_Xor64: smt2_binop_tc_add(64, 16, bvxor); break;
default:
VG_(printf)("smt2_binop_tc_common: ");
ppIROp(op);
VG_(printf)(" not yet supported\n");
tl_assert(0);
}
}
static void tnt_smt2_binop_ct_common ( UInt op, UInt ltmp, UInt rtmp, ULong c ) {
switch(op) {
case Iop_Add8: smt2_binop_ct_add( 8, 2, bvadd); break;
case Iop_Add16: smt2_binop_ct_add(16, 4, bvadd); break;
case Iop_Add32: smt2_binop_ct_add(32, 8, bvadd); break;
case Iop_Add64: smt2_binop_ct_add(64,16, bvadd); break;
case Iop_And8: smt2_binop_ct_add( 8, 2, bvand); break;
case Iop_And16: smt2_binop_ct_add(16, 4, bvand); break;
case Iop_And32: smt2_binop_ct_add(32, 8, bvand); break;
case Iop_And64: smt2_binop_ct_add(64,16, bvand); break;
case Iop_CmpEQ8: smt2_binop_ct_cmp(8, 2, =); break;
case Iop_CmpEQ16: smt2_binop_ct_cmp(16, 4, =); break;
case Iop_CmpEQ32: smt2_binop_ct_cmp(32, 8, =); break;
case Iop_CmpEQ64: smt2_binop_ct_cmp(64,16, =); break;
case Iop_CmpLE32S: smt2_binop_ct_cmp(32, 8, bvsle); break;
case Iop_CmpLE64S: smt2_binop_ct_cmp(64,16, bvsle); break;
case Iop_CmpLE32U: smt2_binop_ct_cmp(32, 8, bvule); break;
case Iop_CmpLE64U: smt2_binop_ct_cmp(64,16, bvule); break;
case Iop_CmpLT32S: smt2_binop_ct_cmp(32, 8, bvslt); break;
case Iop_CmpLT64S: smt2_binop_ct_cmp(64,16, bvslt); break;
case Iop_CmpLT32U: smt2_binop_ct_cmp(32, 8, bvult); break;
case Iop_CmpLT64U: smt2_binop_ct_cmp(64,16, bvult); break;
case Iop_Or8: smt2_binop_ct_add( 8, 2, bvor); break;
case Iop_Or16: smt2_binop_ct_add(16, 4, bvor); break;
case Iop_Or32: smt2_binop_ct_add(32, 8, bvor); break;
case Iop_Or64: smt2_binop_ct_add(64,16, bvor); break;
case Iop_Sar8: smt2_binop_ct_add( 8, 2, bvashr); break;
case Iop_Sar16: smt2_binop_ct_add(16, 4, bvashr); break;
case Iop_Sar32: smt2_binop_ct_add(32, 8, bvashr); break;
case Iop_Sar64: smt2_binop_ct_add(64,16, bvashr); break;
case Iop_Shl8: smt2_binop_ct_add( 8, 2, bvshl); break;
case Iop_Shl16: smt2_binop_ct_add(16, 4, bvshl); break;
case Iop_Shl32: smt2_binop_ct_add(32, 8, bvshl); break;
case Iop_Shl64: smt2_binop_ct_add(64,16, bvshl); break;
case Iop_Shr8: smt2_binop_ct_add( 8, 2, bvlshr); break;
case Iop_Shr16: smt2_binop_ct_add(16, 4, bvlshr); break;
case Iop_Shr32: smt2_binop_ct_add(32, 8, bvlshr); break;
case Iop_Shr64: smt2_binop_ct_add(64,16, bvlshr); break;
case Iop_Sub8: smt2_binop_ct_add( 8, 2, bvsub); break;
case Iop_Sub16: smt2_binop_ct_add(16, 4, bvsub); break;
case Iop_Sub32: smt2_binop_ct_add(32, 8, bvsub); break;
case Iop_Sub64: smt2_binop_ct_add(64,16, bvsub); break;
case Iop_Xor8: smt2_binop_ct_add( 8, 2, bvxor); break;
case Iop_Xor16: smt2_binop_ct_add(16, 4, bvxor); break;
case Iop_Xor32: smt2_binop_ct_add(32, 8, bvxor); break;
case Iop_Xor64: smt2_binop_ct_add(64,16, bvxor); break;
default:
VG_(printf)("smt2_binop_ct_common: ");
ppIROp(op);
VG_(printf)(" not yet supported\n");
tl_assert(0);
}
}
// ltmp = <op> rtmp1 c
void TNT_(smt2_binop_tc) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Binop.op;
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp = arg1->Iex.RdTmp.tmp;
ULong c = extract_IRConst64( arg2->Iex.Const.con );
tnt_smt2_binop_tc_common ( op, ltmp, rtmp, c );
}
// ltmp = <op> c rtmp2
void TNT_(smt2_binop_ct) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Binop.op;
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp = arg2->Iex.RdTmp.tmp;
ULong c = extract_IRConst64( arg1->Iex.Const.con );
tnt_smt2_binop_ct_common ( op, ltmp, rtmp, c );
}
// ltmp = <op> rtmp1 rtmp2, rtmp1 is tainted, similar to binop_tc
static void tnt_smt2_binop_tt_10 ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Binop.op;
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp = arg1->Iex.RdTmp.tmp;
UInt rtmp2 = arg2->Iex.RdTmp.tmp;
ULong c = tv[rtmp2];
tnt_smt2_binop_tc_common ( op, ltmp, rtmp, c );
}
// ltmp = <op> rtmp1 rtmp2, rtmp2 is tainted, similar to binop_ct
static void tnt_smt2_binop_tt_01 ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Binop.op;
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp1 = arg1->Iex.RdTmp.tmp;
UInt rtmp = arg2->Iex.RdTmp.tmp;
ULong c = tv[rtmp1];
tnt_smt2_binop_ct_common ( op, ltmp, rtmp, c );
}
#define smt2_binop_tt_11_add(a, d) \
tl_assert(tt[rtmp1] == a); \
tl_assert(tt[rtmp2] == a); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec " #a "))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (" #d " t%d_%d t%d_%d) ))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp1, (int)_ti(rtmp1), (int)rtmp2, (int)_ti(rtmp2) ); \
tt[ltmp] = a
#define smt2_binop_tt_11_cmp(a, d) \
tl_assert(tt[rtmp1] == a); \
tl_assert(tt[rtmp2] == a); \
VG_(printf)("(declare-fun t%d_%d () (_ BitVec 1))\n", (int)ltmp, (int)_ti(ltmp)); \
VG_(printf)("(assert (= t%d_%d (ite (" #d " t%d_%d t%d_%d) #b1 #b0) ))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp1, (int)_ti(rtmp1), (int)rtmp2, (int)_ti(rtmp2) ); \
tt[ltmp] = 1
// ltmp = <op> rtmp1 rtmp2, both tainted
static void tnt_smt2_binop_tt_11 ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt op = clone->Ist.WrTmp.data->Iex.Binop.op;
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp1 = arg1->Iex.RdTmp.tmp;
UInt rtmp2 = arg2->Iex.RdTmp.tmp;
switch(op) {
case Iop_Add8: smt2_binop_tt_11_add( 8, bvadd); break;
case Iop_Add16: smt2_binop_tt_11_add(16, bvadd); break;
case Iop_Add32: smt2_binop_tt_11_add(32, bvadd); break;
case Iop_Add64: smt2_binop_tt_11_add(64, bvadd); break;
case Iop_And8: smt2_binop_tt_11_add( 8, bvand); break;
case Iop_And16: smt2_binop_tt_11_add(16, bvand); break;
case Iop_And32: smt2_binop_tt_11_add(32, bvand); break;
case Iop_And64: smt2_binop_tt_11_add(64, bvand); break;
case Iop_CmpEQ8: smt2_binop_tt_11_cmp( 8, =); break;
case Iop_CmpEQ16: smt2_binop_tt_11_cmp(16, =); break;
case Iop_CmpEQ32: smt2_binop_tt_11_cmp(32, =); break;
case Iop_CmpEQ64: smt2_binop_tt_11_cmp(64, =); break;
case Iop_CmpLE32S: smt2_binop_tt_11_cmp(32, bvsle); break;
case Iop_CmpLE32U: smt2_binop_tt_11_cmp(32, bvule); break;
case Iop_CmpLT32S: smt2_binop_tt_11_cmp(32, bvslt); break;
case Iop_CmpLT32U: smt2_binop_tt_11_cmp(32, bvult); break;
case Iop_Or8: smt2_binop_tt_11_add( 8, bvor); break;
case Iop_Or16: smt2_binop_tt_11_add(16, bvor); break;
case Iop_Or32: smt2_binop_tt_11_add(32, bvor); break;
case Iop_Or64: smt2_binop_tt_11_add(64, bvor); break;
case Iop_Sar8: smt2_binop_tt_11_add( 8, bvashr); break;
case Iop_Sar16: smt2_binop_tt_11_add(16, bvashr); break;
case Iop_Sar32: smt2_binop_tt_11_add(32, bvashr); break;
case Iop_Sar64: smt2_binop_tt_11_add(64, bvashr); break;
case Iop_Shl8: smt2_binop_tt_11_add( 8, bvshl); break;
case Iop_Shl16: smt2_binop_tt_11_add(16, bvshl); break;
case Iop_Shl32: smt2_binop_tt_11_add(32, bvshl); break;
case Iop_Shl64: smt2_binop_tt_11_add(64, bvshl); break;
case Iop_Shr8: smt2_binop_tt_11_add( 8, bvlshr); break;
case Iop_Shr16: smt2_binop_tt_11_add(16, bvlshr); break;
case Iop_Shr32: smt2_binop_tt_11_add(32, bvlshr); break;
case Iop_Shr64: smt2_binop_tt_11_add(64, bvlshr); break;
case Iop_Sub8: smt2_binop_tt_11_add( 8, bvsub); break;
case Iop_Sub16: smt2_binop_tt_11_add(16, bvsub); break;
case Iop_Sub32: smt2_binop_tt_11_add(32, bvsub); break;
case Iop_Sub64: smt2_binop_tt_11_add(64, bvsub); break;
case Iop_Xor8: smt2_binop_tt_11_add( 8, bvxor); break;
case Iop_Xor16: smt2_binop_tt_11_add(16, bvxor); break;
case Iop_Xor32: smt2_binop_tt_11_add(32, bvxor); break;
case Iop_Xor64: smt2_binop_tt_11_add(64, bvxor); break;
default:
VG_(printf)("smt2_binop_tt_11: ");
ppIROp(op);
VG_(printf)(" not yet supported\n");
tl_assert(0);
}
}
// ltmp = <op> rtmp1 rtmp2
void TNT_(smt2_binop_tt) ( IRStmt *clone )
{
IRExpr* arg1 = clone->Ist.WrTmp.data->Iex.Binop.arg1;
IRExpr* arg2 = clone->Ist.WrTmp.data->Iex.Binop.arg2;
UInt rtmp1 = arg1->Iex.RdTmp.tmp;
UInt rtmp2 = arg2->Iex.RdTmp.tmp;
if ( is_tainted(rtmp1) && !is_tainted(rtmp2) )
tnt_smt2_binop_tt_10(clone);
else if ( !is_tainted(rtmp1) && is_tainted(rtmp2) )
tnt_smt2_binop_tt_01(clone);
else if ( is_tainted(rtmp1) && is_tainted(rtmp2) )
tnt_smt2_binop_tt_11(clone);
}
// ltmp = rtmp
void TNT_(smt2_rdtmp) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
UInt rtmp = clone->Ist.WrTmp.data->Iex.RdTmp.tmp;
tl_assert(tt[rtmp]);
VG_(printf)("(declare-fun t%d_%d () (_ BitVec %d))\n", (int)ltmp, (int)_ti(ltmp), (int)tt[rtmp]);
VG_(printf)("(assert (= t%d_%d t%d_%d))\n", (int)ltmp, (int)_ti(ltmp), (int)rtmp, (int)_ti(rtmp) );
tt[ltmp] = tt[rtmp];
}
// tmp = reg
void TNT_(smt2_get) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
IRExpr *data = clone->Ist.WrTmp.data;
UInt ty = data->Iex.Get.ty - Ity_INVALID;
UInt reg = data->Iex.Get.offset/(sizeof(UWord));
VG_(printf)("(declare-fun t%d_%d () (_ BitVec %d))\n", (int)ltmp, (int)_ti(ltmp), SMT2_ty[ty]);
switch (SMT2_ty[ty]) {
case 8:
VG_(printf)("(assert (= t%d_%d ((_ extract 7 0) r%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)reg, (int)ri[reg] );
break;
case 16:
VG_(printf)("(assert (= t%d_%d ((_ extract 15 0) r%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)reg, (int)ri[reg] );
break;
case 32:
VG_(printf)("(assert (= t%d_%d ((_ extract 31 0) r%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)reg, (int)ri[reg] );
break;
case 64:
VG_(printf)("(assert (= t%d_%d ((_ extract 63 0) r%d_%d)))\n", (int)ltmp, (int)_ti(ltmp), (int)reg, (int)ri[reg] );
break;
default:
VG_(printf)("smt2_get: SMT2_ty[ty] = %d not yet supported\n", SMT2_ty[ty]);
tl_assert(0);
}
tt[ltmp] = SMT2_ty[ty];
}
// reg = tmp
void TNT_(smt2_put_t_32) ( IRStmt *clone )
{
UInt reg = clone->Ist.Put.offset/(sizeof(UWord));
IRExpr *data = clone->Ist.Put.data;
UInt tmp = data->Iex.RdTmp.tmp;
tl_assert(tt[tmp]);
VG_(printf)("(declare-fun r%d_%d () (_ BitVec 32))\n", (int)reg, (int)ri[reg]);
switch (tt[tmp]) {
case 8:
VG_(printf)("(assert (= r%d_%d ((_ zero_extend 24) t%d_%d)))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
case 16:
VG_(printf)("(assert (= r%d_%d ((_ zero_extend 16) t%d_%d)))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
case 32:
VG_(printf)("(assert (= r%d_%d t%d_%d))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
default:
VG_(printf)("smt2_put: tt[tmp] = %d not yet supported\n", (int)tt[tmp]);
tl_assert(0);
break;
}
}
// reg = tmp
void TNT_(smt2_put_t_64) ( IRStmt *clone )
{
UInt reg = clone->Ist.Put.offset/(sizeof(UWord));
IRExpr *data = clone->Ist.Put.data;
UInt tmp = data->Iex.RdTmp.tmp;
tl_assert(tt[tmp]);
VG_(printf)("(declare-fun r%d_%d () (_ BitVec 64))\n", (int)reg, (int)ri[reg]);
switch (tt[tmp]) {
case 8:
VG_(printf)("(assert (= r%d_%d ((_ zero_extend 56) t%d_%d)))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
case 16:
VG_(printf)("(assert (= r%d_%d ((_ zero_extend 48) t%d_%d)))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
case 32:
VG_(printf)("(assert (= r%d_%d ((_ zero_extend 32) t%d_%d)))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
case 64:
VG_(printf)("(assert (= r%d_%d t%d_%d))\n", (int)reg, (int)ri[reg], (int)tmp, (int)_ti(tmp) );
break;
default:
VG_(printf)("smt2_put: tt[tmp] = %d not yet supported\n", (int)tt[tmp]);
tl_assert(0);
break;
}
}
void TNT_(smt2_x86g_calculate_condition) ( IRStmt *clone )
{
UInt ltmp = clone->Ist.WrTmp.tmp;
IRExpr *data = clone->Ist.WrTmp.data;
UInt ty = data->Iex.CCall.retty - Ity_INVALID;
//char buf[1024];
VG_(printf)("(declare-fun t%d_%d () (_ BitVec %d))\n", (int)ltmp, (int)_ti(ltmp), SMT2_ty[ty]);
//VG_(printf)("(assert (= t%d_%d (%s)))\n", ltmp, _ti(ltmp),
// tnt_smt2_amd64g_calculate_condition_cond( clone, buf ) );
tt[ltmp] = SMT2_ty[ty];
}
// VEX/priv/guest_amd64_defs.h
// extern ULong amd64g_calculate_condition (
// ULong/*AMD64Condcode*/ cond,
// ULong cc_op,
// ULong cc_dep1, ULong cc_dep2, ULong cc_ndep
// );
typedef
enum {
AMD64CondO = 0, /* overflow */
AMD64CondNO = 1, /* no overflow */
AMD64CondB = 2, /* below */
AMD64CondNB = 3, /* not below */
AMD64CondZ = 4, /* zero */
AMD64CondNZ = 5, /* not zero */
AMD64CondBE = 6, /* below or equal */
AMD64CondNBE = 7, /* not below or equal */
AMD64CondS = 8, /* negative */
AMD64CondNS = 9, /* not negative */
AMD64CondP = 10, /* parity even */
AMD64CondNP = 11, /* not parity even */
AMD64CondL = 12, /* jump less */
AMD64CondNL = 13, /* not less */
AMD64CondLE = 14, /* less or equal */
AMD64CondNLE = 15, /* not less or equal */
AMD64CondAlways = 16 /* HACK */
}
AMD64Condcode;
enum {
AMD64G_CC_OP_COPY=0, /* DEP1 = current flags, DEP2 = 0, NDEP = unused */
/* just copy DEP1 to output */
AMD64G_CC_OP_ADDB, /* 1 */
AMD64G_CC_OP_ADDW, /* 2 DEP1 = argL, DEP2 = argR, NDEP = unused */
AMD64G_CC_OP_ADDL, /* 3 */
AMD64G_CC_OP_ADDQ, /* 4 */
AMD64G_CC_OP_SUBB, /* 5 */
AMD64G_CC_OP_SUBW, /* 6 DEP1 = argL, DEP2 = argR, NDEP = unused */
AMD64G_CC_OP_SUBL, /* 7 */
AMD64G_CC_OP_SUBQ, /* 8 */
AMD64G_CC_OP_ADCB, /* 9 */
AMD64G_CC_OP_ADCW, /* 10 DEP1 = argL, DEP2 = argR ^ oldCarry, NDEP = oldCarry */
AMD64G_CC_OP_ADCL, /* 11 */
AMD64G_CC_OP_ADCQ, /* 12 */
AMD64G_CC_OP_SBBB, /* 13 */
AMD64G_CC_OP_SBBW, /* 14 DEP1 = argL, DEP2 = argR ^ oldCarry, NDEP = oldCarry */
AMD64G_CC_OP_SBBL, /* 15 */
AMD64G_CC_OP_SBBQ, /* 16 */
AMD64G_CC_OP_LOGICB, /* 17 */
AMD64G_CC_OP_LOGICW, /* 18 DEP1 = result, DEP2 = 0, NDEP = unused */
AMD64G_CC_OP_LOGICL, /* 19 */
AMD64G_CC_OP_LOGICQ, /* 20 */
AMD64G_CC_OP_INCB, /* 21 */
AMD64G_CC_OP_INCW, /* 22 DEP1 = result, DEP2 = 0, NDEP = oldCarry (0 or 1) */
AMD64G_CC_OP_INCL, /* 23 */
AMD64G_CC_OP_INCQ, /* 24 */
AMD64G_CC_OP_DECB, /* 25 */
AMD64G_CC_OP_DECW, /* 26 DEP1 = result, DEP2 = 0, NDEP = oldCarry (0 or 1) */
AMD64G_CC_OP_DECL, /* 27 */
AMD64G_CC_OP_DECQ, /* 28 */
AMD64G_CC_OP_SHLB, /* 29 DEP1 = res, DEP2 = res', NDEP = unused */
AMD64G_CC_OP_SHLW, /* 30 where res' is like res but shifted one bit less */
AMD64G_CC_OP_SHLL, /* 31 */
AMD64G_CC_OP_SHLQ, /* 32 */
AMD64G_CC_OP_SHRB, /* 33 DEP1 = res, DEP2 = res', NDEP = unused */
AMD64G_CC_OP_SHRW, /* 34 where res' is like res but shifted one bit less */
AMD64G_CC_OP_SHRL, /* 35 */
AMD64G_CC_OP_SHRQ, /* 36 */
AMD64G_CC_OP_ROLB, /* 37 */
AMD64G_CC_OP_ROLW, /* 38 DEP1 = res, DEP2 = 0, NDEP = old flags */
AMD64G_CC_OP_ROLL, /* 39 */
AMD64G_CC_OP_ROLQ, /* 40 */
AMD64G_CC_OP_RORB, /* 41 */
AMD64G_CC_OP_RORW, /* 42 DEP1 = res, DEP2 = 0, NDEP = old flags */
AMD64G_CC_OP_RORL, /* 43 */
AMD64G_CC_OP_RORQ, /* 44 */
AMD64G_CC_OP_UMULB, /* 45 */
AMD64G_CC_OP_UMULW, /* 46 DEP1 = argL, DEP2 = argR, NDEP = unused */
AMD64G_CC_OP_UMULL, /* 47 */
AMD64G_CC_OP_UMULQ, /* 48 */
AMD64G_CC_OP_SMULB, /* 49 */
AMD64G_CC_OP_SMULW, /* 50 DEP1 = argL, DEP2 = argR, NDEP = unused */
AMD64G_CC_OP_SMULL, /* 51 */
AMD64G_CC_OP_SMULQ, /* 52 */
AMD64G_CC_OP_NUMBER
};
static char *tnt_smt2_amd64g_calculate_condition_op_tc_common( IRStmt *clone, char *buf, UInt dep1tmp, ULong dep2c )
{
IRExpr *data = clone->Ist.WrTmp.data;
IRExpr *op = data->Iex.CCall.args[1];
ULong cc_op;
if ( op->tag == Iex_Const )
cc_op = extract_IRConst64( op->Iex.Const.con );
else if ( op->tag == Iex_RdTmp ) {
cc_op = tv[op->Iex.RdTmp.tmp];
} else {
VG_(printf)("cc_op->tag: %x\n", op->tag);
tl_assert(0);
}
char tmp[1024];
switch ( cc_op )
{
case AMD64G_CC_OP_SUBB:
VG_(sprintf)(tmp, "(bvsub ((_ extract 7 0) t%d_%d) #x%02x) #x%02x",
(int)dep1tmp, (int)_ti(dep1tmp),
(unsigned char)dep2c, 0U );
break;
case AMD64G_CC_OP_SUBW:
VG_(sprintf)(tmp, "(bvsub ((_ extract 15 0) t%d_%d) #x%04x) #x%04x",
(int)dep1tmp, (int)_ti(dep1tmp),
(unsigned short)dep2c, 0U );
break;
case AMD64G_CC_OP_SUBL:
VG_(sprintf)(tmp, "(bvsub ((_ extract 31 0) t%d_%d) #x%08x) #x%08x",
(int)dep1tmp, (int)_ti(dep1tmp),
(unsigned int)dep2c, 0U );
break;
case AMD64G_CC_OP_SUBQ:
VG_(sprintf)(tmp, "(bvsub t%d_%d #x%016llx) #x%016llx",
(int)dep1tmp, (int)_ti(dep1tmp),
(long long unsigned int)dep2c, 0ULL );
break;
default:
VG_(printf)("smt2_amd64g_calculate_condition: cc_op = %llx not yet supported\n", cc_op);
tl_assert(0);
}