* src/vm/jit/codegen-common.cpp (codegen_emit): New generic version of the

[cacao.git] / src / vm / jit / i386 / emit.c

diff --git a/src/vm/jit/i386/emit.c b/src/vm/jit/i386/emit.c
index cfddc22a70f64aeb6934e5de08a063ac1d4f5ba6..d69217920db6745eda2d90baddd3ba1fbe284846 100644 (file)
--- a/src/vm/jit/i386/emit.c
+++ b/src/vm/jit/i386/emit.c
@@ -332,6 +332,16 @@ void emit_copy(jitdata *jd, instruction *iptr)
 }
 
 
+/**
+ * Emits code updating the condition register by comparing one integer
+ * register to an immediate integer value.
+ */
+void emit_icmp_imm(codegendata* cd, int reg, int32_t value)
+{
+       M_CMP_IMM(value, reg);
+}
+
+
 /* emit_branch *****************************************************************
 
    Emits the code for conditional and unconditional branchs.
@@ -577,6 +587,125 @@ uint32_t emit_trap(codegendata *cd)
 }
 
 
+/**
+ * Generates synchronization code to enter a monitor.
+ */
+#if defined(ENABLE_THREADS)
+void emit_monitor_enter(jitdata* jd, int32_t syncslot_offset)
+{
+       int align_off;
+
+       // Get required compiler data.
+       methodinfo*  m  = jd->m;
+       codegendata* cd = jd->cd;
+
+       align_off = cd->stackframesize ? 4 : 0;
+
+       if (m->flags & ACC_STATIC) {
+               M_MOV_IMM(&m->clazz->object.header, REG_ITMP1);
+       }
+       else {
+               M_ALD(REG_ITMP1, REG_SP, cd->stackframesize * 8 + 4 + align_off);
+               M_TEST(REG_ITMP1);
+               M_BNE(6);
+               M_ALD_MEM(REG_ITMP1, TRAP_NullPointerException);
+       }
+
+       M_AST(REG_ITMP1, REG_SP, syncslot_offset);
+       M_AST(REG_ITMP1, REG_SP, 0 * 4);
+       M_MOV_IMM(LOCK_monitor_enter, REG_ITMP3);
+       M_CALL(REG_ITMP3);
+}
+#endif
+
+
+/**
+ * Generates synchronization code to leave a monitor.
+ */
+#if defined(ENABLE_THREADS)
+void emit_monitor_exit(jitdata* jd, int32_t syncslot_offset)
+{
+       // Get required compiler data.
+       methodinfo*  m  = jd->m;
+       codegendata* cd = jd->cd;
+
+       M_ALD(REG_ITMP2, REG_SP, syncslot_offset);
+
+       /* we need to save the proper return value */
+
+       methoddesc* md = m->parseddesc;
+
+       switch (md->returntype.type) {
+       case TYPE_INT:
+       case TYPE_ADR:
+               M_IST(REG_RESULT, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_LNG:
+               M_LST(REG_RESULT_PACKED, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_FLT:
+               emit_fstps_membase(cd, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_DBL:
+               emit_fstpl_membase(cd, REG_SP, syncslot_offset);
+               break;
+       }
+
+       M_AST(REG_ITMP2, REG_SP, 0);
+       M_MOV_IMM(LOCK_monitor_exit, REG_ITMP3);
+       M_CALL(REG_ITMP3);
+
+       /* and now restore the proper return value */
+
+       switch (md->returntype.type) {
+       case TYPE_INT:
+       case TYPE_ADR:
+               M_ILD(REG_RESULT, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_LNG:
+               M_LLD(REG_RESULT_PACKED, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_FLT:
+               emit_flds_membase(cd, REG_SP, syncslot_offset);
+               break;
+
+       case TYPE_DBL:
+               emit_fldl_membase(cd, REG_SP, syncslot_offset);
+               break;
+       }
+}
+#endif
+
+
+/**
+ * Emit profiling code for method frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_method(codegendata* cd, codeinfo* code)
+{
+       M_MOV_IMM(code, REG_ITMP3);
+       M_IADD_IMM_MEMBASE(1, REG_ITMP3, OFFSET(codeinfo, frequency));
+}
+#endif
+
+
+/**
+ * Emit profiling code for basicblock frequency counting.
+ */
+#if defined(ENABLE_PROFILING)
+void emit_profile_basicblock(codegendata* cd, codeinfo* code, basicblock* bptr)
+{
+       M_MOV_IMM(code->bbfrequency, REG_ITMP3);
+       M_IADD_IMM_MEMBASE(1, REG_ITMP3, bptr->nr * 4);
+}
+#endif
+
+
 /* emit_verbosecall_enter ******************************************************
 
    Generates the code for the call trace.