[jit] Don't sample threads that are not fully attached.
[mono.git] / mono / mini / decompose.c
index e9536e9f5291970756ddec139cbdf78df2d270fa..f29e913acf91e5849479f9e12d74514ffa68c1df 100644 (file)
@@ -13,6 +13,7 @@
 #include "jit-icalls.h"
 
 #include <mono/metadata/gc-internal.h>
+#include <mono/metadata/abi-details.h>
 
 #ifndef DISABLE_JIT
 
@@ -469,13 +470,54 @@ mono_decompose_opcode (MonoCompile *cfg, MonoInst *ins)
                        }
 #endif
                        MONO_EMIT_NEW_BIALU (cfg, ins->opcode, ins->dreg, ins->sreg1, ins->sreg2);
-                       ins->opcode = OP_NOP;
+                       NULLIFY_INS (ins);
                } else {
                        emulate = TRUE;
                }
                break;
 #endif
 
+#if SIZEOF_REGISTER == 8
+       case OP_LREM_IMM:
+#endif
+       case OP_IREM_IMM: {
+               int power = mono_is_power_of_two (ins->inst_imm);
+               if (ins->inst_imm == 1) {
+                       ins->opcode = OP_ICONST;
+                       MONO_INST_NULLIFY_SREGS (ins);
+                       ins->inst_c0 = 0;
+#if __s390__
+               }
+#else
+               } else if ((ins->inst_imm > 0) && (ins->inst_imm < (1LL << 32)) && (power != -1)) {
+                       gboolean is_long = ins->opcode == OP_LREM_IMM;
+                       int compensator_reg = alloc_ireg (cfg);
+                       int intermediate_reg;
+
+                       /* Based on gcc code */
+
+                       /* Add compensation for negative numerators */
+
+                       if (power > 1) {
+                               intermediate_reg = compensator_reg;
+                               MONO_EMIT_NEW_BIALU_IMM (cfg, is_long ? OP_LSHR_IMM : OP_ISHR_IMM, intermediate_reg, ins->sreg1, is_long ? 63 : 31);
+                       } else {
+                               intermediate_reg = ins->sreg1;
+                       }
+
+                       MONO_EMIT_NEW_BIALU_IMM (cfg, is_long ? OP_LSHR_UN_IMM : OP_ISHR_UN_IMM, compensator_reg, intermediate_reg, (is_long ? 64 : 32) - power);
+                       MONO_EMIT_NEW_BIALU (cfg, is_long ? OP_LADD : OP_IADD, ins->dreg, ins->sreg1, compensator_reg);
+                       /* Compute remainder */
+                       MONO_EMIT_NEW_BIALU_IMM (cfg, is_long ? OP_LAND_IMM : OP_AND_IMM, ins->dreg, ins->dreg, (1 << power) - 1);
+                       /* Remove compensation */
+                       MONO_EMIT_NEW_BIALU (cfg, is_long ? OP_LSUB : OP_ISUB, ins->dreg, ins->dreg, compensator_reg);
+
+                       NULLIFY_INS (ins);
+               }
+#endif
+               break;
+       }
+
        default:
                emulate = TRUE;
                break;
@@ -942,7 +984,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_EMIT_NEW_BIALU (cfg, OP_IOR, d1, d1, d2);
                                        MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, d1, 0);
                                        MONO_EMIT_NEW_BRANCH_BLOCK2 (cfg, next->opcode == OP_LBEQ ? OP_IBEQ : OP_IBNE_UN, next->inst_true_bb, next->inst_false_bb);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                }
                                case OP_LBGE:
@@ -960,7 +1002,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBNE_UN, next->inst_false_bb);
                                        MONO_EMIT_NEW_BIALU (cfg, OP_COMPARE, -1, tree->sreg1 + 1, tree->sreg2 + 1);
                                        MONO_EMIT_NEW_BRANCH_BLOCK2 (cfg, lbr_decomp [next->opcode - OP_LBEQ][1], next->inst_true_bb, next->inst_false_bb);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                case OP_LCEQ: {
                                        int d1, d2;
@@ -974,7 +1016,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
 
                                        MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, d1, 0);
                                        MONO_EMIT_NEW_UNALU (cfg, OP_ICEQ, next->dreg, -1);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                }
                                case OP_LCLT:
@@ -996,7 +1038,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_START_BB (cfg, set_to_1);
                                        MONO_EMIT_NEW_ICONST (cfg, next->dreg, 1);
                                        MONO_START_BB (cfg, set_to_0);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;  
                                }
                                default:
@@ -1028,7 +1070,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_EMIT_NEW_BIALU (cfg, OP_IOR, d1, d1, d2);
                                        MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, d1, 0);
                                        MONO_EMIT_NEW_BRANCH_BLOCK2 (cfg, next->opcode == OP_LBEQ ? OP_IBEQ : OP_IBNE_UN, next->inst_true_bb, next->inst_false_bb);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                }
 
@@ -1047,7 +1089,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_EMIT_NEW_BRANCH_BLOCK (cfg, OP_IBNE_UN, next->inst_false_bb);
                                        MONO_EMIT_NEW_BIALU_IMM (cfg, OP_COMPARE_IMM, -1, low_reg, low_imm);
                                        MONO_EMIT_NEW_BRANCH_BLOCK2 (cfg, lbr_decomp [next->opcode - OP_LBEQ][1], next->inst_true_bb, next->inst_false_bb);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                case OP_LCEQ: {
                                        int d1, d2;
@@ -1061,7 +1103,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
 
                                        MONO_EMIT_NEW_BIALU_IMM (cfg, OP_ICOMPARE_IMM, -1, d1, 0);
                                        MONO_EMIT_NEW_UNALU (cfg, OP_ICEQ, next->dreg, -1);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;
                                }
                                case OP_LCLT:
@@ -1083,7 +1125,7 @@ mono_decompose_long_opts (MonoCompile *cfg)
                                        MONO_START_BB (cfg, set_to_1);
                                        MONO_EMIT_NEW_ICONST (cfg, next->dreg, 1);
                                        MONO_START_BB (cfg, set_to_0);
-                                       next->opcode = OP_NOP;
+                                       NULLIFY_INS (next);
                                        break;  
                                }
                                default:
@@ -1292,18 +1334,18 @@ mono_decompose_vtype_opts (MonoCompile *cfg)
                                        if (call->vret_in_reg) {
                                                MonoCallInst *call2;
 
-                                               /* Replace the vcall with an integer call */
+                                               /* Replace the vcall with a scalar call */
                                                MONO_INST_NEW_CALL (cfg, call2, OP_NOP);
                                                memcpy (call2, call, sizeof (MonoCallInst));
                                                switch (ins->opcode) {
                                                case OP_VCALL:
-                                                       call2->inst.opcode = OP_CALL;
+                                                       call2->inst.opcode = call->vret_in_reg_fp ? OP_FCALL : OP_CALL;
                                                        break;
                                                case OP_VCALL_REG:
-                                                       call2->inst.opcode = OP_CALL_REG;
+                                                       call2->inst.opcode = call->vret_in_reg_fp ? OP_FCALL_REG : OP_CALL_REG;
                                                        break;
                                                case OP_VCALL_MEMBASE:
-                                                       call2->inst.opcode = OP_CALL_MEMBASE;
+                                                       call2->inst.opcode = call->vret_in_reg_fp ? OP_FCALL_MEMBASE : OP_CALL_MEMBASE;
                                                        break;
                                                }
                                                call2->inst.dreg = alloc_preg (cfg);
@@ -1329,12 +1371,19 @@ mono_decompose_vtype_opts (MonoCompile *cfg)
                                                        break;
                                                case 3:
                                                case 4:
-                                                       MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, dest->dreg, 0, call2->inst.dreg);
+                                                       if (call->vret_in_reg_fp)
+                                                               MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER4_MEMBASE_REG, dest->dreg, 0, call2->inst.dreg);
+                                                       else
+                                                               MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STOREI4_MEMBASE_REG, dest->dreg, 0, call2->inst.dreg);
                                                        break;
                                                case 5:
                                                case 6:
                                                case 7:
                                                case 8:
+                                                       if (call->vret_in_reg_fp) {
+                                                               MONO_EMIT_NEW_STORE_MEMBASE (cfg, OP_STORER8_MEMBASE_REG, dest->dreg, 0, call2->inst.dreg);
+                                                               break;
+                                                       }
 #if SIZEOF_REGISTER == 4
                                                        /*
                                                        FIXME Other ABIs might return in different regs than the ones used for LCALL.
@@ -1519,7 +1568,7 @@ mono_decompose_array_access_opts (MonoCompile *cfg)
                                switch (ins->opcode) {
                                case OP_LDLEN:
                                        NEW_LOAD_MEMBASE_FLAGS (cfg, dest, OP_LOADI4_MEMBASE, ins->dreg, ins->sreg1,
-                                                                                       G_STRUCT_OFFSET (MonoArray, max_length), ins->flags | MONO_INST_INVARIANT_LOAD);
+                                                                                       MONO_STRUCT_OFFSET (MonoArray, max_length), ins->flags | MONO_INST_INVARIANT_LOAD);
                                        MONO_ADD_INS (cfg->cbb, dest);
                                        break;
                                case OP_BOUNDS_CHECK:
@@ -1558,7 +1607,7 @@ mono_decompose_array_access_opts (MonoCompile *cfg)
                                        break;
                                case OP_STRLEN:
                                        MONO_EMIT_NEW_LOAD_MEMBASE_OP_FLAGS (cfg, OP_LOADI4_MEMBASE, ins->dreg,
-                                                                                                                ins->sreg1, G_STRUCT_OFFSET (MonoString, length), ins->flags | MONO_INST_INVARIANT_LOAD);
+                                                                                                                ins->sreg1, MONO_STRUCT_OFFSET (MonoString, length), ins->flags | MONO_INST_INVARIANT_LOAD);
                                        break;
                                default:
                                        break;