-gpointer
-mono_arch_get_vcall_slot (guint8* code, gpointer *regs, int *displacement)
-{
- guint8 *bundle2 = code - 48;
- guint8 *bundle3 = code - 32;
- guint8 *bundle4 = code - 16;
- guint64 ins21 = ia64_bundle_ins1 (bundle2);
- guint64 ins22 = ia64_bundle_ins2 (bundle2);
- guint64 ins23 = ia64_bundle_ins3 (bundle2);
- guint64 ins31 = ia64_bundle_ins1 (bundle3);
- guint64 ins32 = ia64_bundle_ins2 (bundle3);
- guint64 ins33 = ia64_bundle_ins3 (bundle3);
- guint64 ins41 = ia64_bundle_ins1 (bundle4);
- guint64 ins42 = ia64_bundle_ins2 (bundle4);
- guint64 ins43 = ia64_bundle_ins3 (bundle4);
-
- /*
- * Virtual calls are made with:
- *
- * [MII] ld8 r31=[r8]
- * nop.i 0x0
- * nop.i 0x0;;
- * [MII] nop.m 0x0
- * mov.sptk b6=r31,0x2000000000f32a80
- * nop.i 0x0
- * [MII] nop.m 0x0
- * nop.i 0x123456
- * nop.i 0x0
- * [MIB] nop.m 0x0
- * nop.i 0x0
- * br.call.sptk.few b0=b6;;
- */
-
- if (((ia64_bundle_template (bundle3) == IA64_TEMPLATE_MII) ||
- (ia64_bundle_template (bundle3) == IA64_TEMPLATE_MIIS)) &&
- (ia64_bundle_template (bundle4) == IA64_TEMPLATE_MIBS) &&
- (ins31 == IA64_NOP_M) &&
- (ia64_ins_opcode (ins32) == 0) && (ia64_ins_x3 (ins32) == 0) && (ia64_ins_x6 (ins32) == 0x1) && (ia64_ins_y (ins32) == 0) &&
- (ins33 == IA64_NOP_I) &&
- (ins41 == IA64_NOP_M) &&
- (ins42 == IA64_NOP_I) &&
- (ia64_ins_opcode (ins43) == 1) && (ia64_ins_b1 (ins43) == 0) && (ia64_ins_b2 (ins43) == 6) &&
- ((ins32 >> 6) & 0xfffff) == 0x12345) {
- g_assert (ins21 == IA64_NOP_M);
- g_assert (ins23 == IA64_NOP_I);
- g_assert (ia64_ins_opcode (ins22) == 0);
- g_assert (ia64_ins_x3 (ins22) == 7);
- g_assert (ia64_ins_x (ins22) == 0);
- g_assert (ia64_ins_b1 (ins22) == IA64_B6);
-
- *displacement = (gssize)regs [IA64_R8] - (gssize)regs [IA64_R11];
-
- return regs [IA64_R11];
- }
-
- return NULL;
-}
-