target/cris: Plug leakage of TCG temporaries

Add and fix deallocation of temporary TCG registers in CRIS code
generation.

Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Change-Id: I17fce5d95bdc4418337ba885d53ba97afb1bafcc
Signed-off-by: Stefan Sandström <stefans@axis.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210219124416.28178-1-stefans@axis.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

2 files changed, 135 insertions, 59 deletions

diff --git a/target/cris/translate.c b/target/cris/translate.c
index 65c168c..6dd5a26 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -172,14 +172,20 @@ static int preg_sizes[] = {
     tcg_gen_ld_tl(tn, cpu_env, offsetof(CPUCRISState, member))
 #define t_gen_mov_env_TN(member, tn) \
     tcg_gen_st_tl(tn, cpu_env, offsetof(CPUCRISState, member))
+#define t_gen_movi_env_TN(member, c) \
+    do { \
+        TCGv tc = tcg_const_tl(c); \
+        t_gen_mov_env_TN(member, tc); \
+        tcg_temp_free(tc); \
+    } while (0)
 
 static inline void t_gen_mov_TN_preg(TCGv tn, int r)
 {
     assert(r >= 0 && r <= 15);
     if (r == PR_BZ || r == PR_WZ || r == PR_DZ) {
-        tcg_gen_mov_tl(tn, tcg_const_tl(0));
+        tcg_gen_movi_tl(tn, 0);
     } else if (r == PR_VR) {
-        tcg_gen_mov_tl(tn, tcg_const_tl(32));
+        tcg_gen_movi_tl(tn, 32);
     } else {
         tcg_gen_mov_tl(tn, cpu_PR[r]);
     }
@@ -256,7 +262,7 @@ static int cris_fetch(CPUCRISState *env, DisasContext *dc, uint32_t addr,
 static void cris_lock_irq(DisasContext *dc)
 {
     dc->clear_locked_irq = 0;
-    t_gen_mov_env_TN(locked_irq, tcg_const_tl(1));
+    t_gen_movi_env_TN(locked_irq, 1);
 }
 
 static inline void t_gen_raise_exception(uint32_t index)
@@ -885,8 +891,7 @@ static void gen_tst_cc (DisasContext *dc, TCGv cc, int cond)
     case CC_EQ:
         if ((arith_opt || move_opt)
                 && dc->cc_x_uptodate != (2 | X_FLAG)) {
-            tcg_gen_setcond_tl(TCG_COND_EQ, cc,
-                    cc_result, tcg_const_tl(0));
+            tcg_gen_setcondi_tl(TCG_COND_EQ, cc, cc_result, 0);
         } else {
             cris_evaluate_flags(dc);
             tcg_gen_andi_tl(cc,
@@ -1330,14 +1335,17 @@ static int dec_addoq(CPUCRISState *env, DisasContext *dc)
 }
 static int dec_addq(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c;
     LOG_DIS("addq %u, $r%u\n", dc->op1, dc->op2);
 
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
 
     cris_cc_mask(dc, CC_MASK_NZVC);
 
+    c = tcg_const_tl(dc->op1);
     cris_alu(dc, CC_OP_ADD,
-            cpu_R[dc->op2], cpu_R[dc->op2], tcg_const_tl(dc->op1), 4);
+            cpu_R[dc->op2], cpu_R[dc->op2], c, 4);
+    tcg_temp_free(c);
     return 2;
 }
 static int dec_moveq(CPUCRISState *env, DisasContext *dc)
@@ -1353,62 +1361,77 @@ static int dec_moveq(CPUCRISState *env, DisasContext *dc)
 }
 static int dec_subq(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c;
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
 
     LOG_DIS("subq %u, $r%u\n", dc->op1, dc->op2);
 
     cris_cc_mask(dc, CC_MASK_NZVC);
+    c = tcg_const_tl(dc->op1);
     cris_alu(dc, CC_OP_SUB,
-            cpu_R[dc->op2], cpu_R[dc->op2], tcg_const_tl(dc->op1), 4);
+            cpu_R[dc->op2], cpu_R[dc->op2], c, 4);
+    tcg_temp_free(c);
     return 2;
 }
 static int dec_cmpq(CPUCRISState *env, DisasContext *dc)
 {
     uint32_t imm;
+    TCGv c;
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
     imm = sign_extend(dc->op1, 5);
 
     LOG_DIS("cmpq %d, $r%d\n", imm, dc->op2);
     cris_cc_mask(dc, CC_MASK_NZVC);
 
+    c = tcg_const_tl(imm);
     cris_alu(dc, CC_OP_CMP,
-            cpu_R[dc->op2], cpu_R[dc->op2], tcg_const_tl(imm), 4);
+            cpu_R[dc->op2], cpu_R[dc->op2], c, 4);
+    tcg_temp_free(c);
     return 2;
 }
 static int dec_andq(CPUCRISState *env, DisasContext *dc)
 {
     uint32_t imm;
+    TCGv c;
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
     imm = sign_extend(dc->op1, 5);
 
     LOG_DIS("andq %d, $r%d\n", imm, dc->op2);
     cris_cc_mask(dc, CC_MASK_NZ);
 
+    c = tcg_const_tl(imm);
     cris_alu(dc, CC_OP_AND,
-            cpu_R[dc->op2], cpu_R[dc->op2], tcg_const_tl(imm), 4);
+            cpu_R[dc->op2], cpu_R[dc->op2], c, 4);
+    tcg_temp_free(c);
     return 2;
 }
 static int dec_orq(CPUCRISState *env, DisasContext *dc)
 {
     uint32_t imm;
+    TCGv c;
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 5);
     imm = sign_extend(dc->op1, 5);
     LOG_DIS("orq %d, $r%d\n", imm, dc->op2);
     cris_cc_mask(dc, CC_MASK_NZ);
 
+    c = tcg_const_tl(imm);
     cris_alu(dc, CC_OP_OR,
-            cpu_R[dc->op2], cpu_R[dc->op2], tcg_const_tl(imm), 4);
+            cpu_R[dc->op2], cpu_R[dc->op2], c, 4);
+    tcg_temp_free(c);
     return 2;
 }
 static int dec_btstq(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c;
     dc->op1 = EXTRACT_FIELD(dc->ir, 0, 4);
     LOG_DIS("btstq %u, $r%d\n", dc->op1, dc->op2);
 
     cris_cc_mask(dc, CC_MASK_NZ);
+    c = tcg_const_tl(dc->op1);
     cris_evaluate_flags(dc);
-        gen_helper_btst(cpu_PR[PR_CCS], cpu_env, cpu_R[dc->op2],
-            tcg_const_tl(dc->op1), cpu_PR[PR_CCS]);
+    gen_helper_btst(cpu_PR[PR_CCS], cpu_env, cpu_R[dc->op2],
+            c, cpu_PR[PR_CCS]);
+    tcg_temp_free(c);
     cris_alu(dc, CC_OP_MOVE,
          cpu_R[dc->op2], cpu_R[dc->op2], cpu_R[dc->op2], 4);
     cris_update_cc_op(dc, CC_OP_FLAGS, 4);
@@ -1558,7 +1581,7 @@ static int dec_lsl_r(CPUCRISState *env, DisasContext *dc)
     dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0, t[0], t[1]);
     tcg_gen_andi_tl(t[1], t[1], 63);
     cris_alu(dc, CC_OP_LSL, cpu_R[dc->op2], t[0], t[1], size);
-    cris_alu_alloc_temps(dc, size, t);
+    cris_alu_free_temps(dc, size, t);
     return 2;
 }
 
@@ -1624,7 +1647,7 @@ static int dec_mulu_r(CPUCRISState *env, DisasContext *dc)
     dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0, t[0], t[1]);
 
     cris_alu(dc, CC_OP_MULU, cpu_R[dc->op2], t[0], t[1], 4);
-    cris_alu_alloc_temps(dc, size, t);
+    cris_alu_free_temps(dc, size, t);
     return 2;
 }
 
@@ -1806,7 +1829,7 @@ static int dec_addi_r(CPUCRISState *env, DisasContext *dc)
             memsize_char(memsize_zz(dc)), dc->op2, dc->op1);
     cris_cc_mask(dc, 0);
     t0 = tcg_temp_new();
-    tcg_gen_shl_tl(t0, cpu_R[dc->op2], tcg_const_tl(dc->zzsize));
+    tcg_gen_shli_tl(t0, cpu_R[dc->op2], dc->zzsize);
     tcg_gen_add_tl(cpu_R[dc->op1], cpu_R[dc->op1], t0);
     tcg_temp_free(t0);
     return 2;
@@ -1819,7 +1842,7 @@ static int dec_addi_acr(CPUCRISState *env, DisasContext *dc)
           memsize_char(memsize_zz(dc)), dc->op2, dc->op1);
     cris_cc_mask(dc, 0);
     t0 = tcg_temp_new();
-    tcg_gen_shl_tl(t0, cpu_R[dc->op2], tcg_const_tl(dc->zzsize));
+    tcg_gen_shli_tl(t0, cpu_R[dc->op2], dc->zzsize);
     tcg_gen_add_tl(cpu_R[R_ACR], cpu_R[dc->op1], t0);
     tcg_temp_free(t0);
     return 2;
@@ -2051,18 +2074,26 @@ static int dec_setclrf(CPUCRISState *env, DisasContext *dc)
 
 static int dec_move_rs(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c2, c1;
     LOG_DIS("move $r%u, $s%u\n", dc->op1, dc->op2);
+    c1 = tcg_const_tl(dc->op1);
+    c2 = tcg_const_tl(dc->op2);
     cris_cc_mask(dc, 0);
-        gen_helper_movl_sreg_reg(cpu_env, tcg_const_tl(dc->op2),
-                                 tcg_const_tl(dc->op1));
+    gen_helper_movl_sreg_reg(cpu_env, c2, c1);
+    tcg_temp_free(c1);
+    tcg_temp_free(c2);
     return 2;
 }
 static int dec_move_sr(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c2, c1;
     LOG_DIS("move $s%u, $r%u\n", dc->op2, dc->op1);
+    c1 = tcg_const_tl(dc->op1);
+    c2 = tcg_const_tl(dc->op2);
     cris_cc_mask(dc, 0);
-        gen_helper_movl_reg_sreg(cpu_env, tcg_const_tl(dc->op1),
-                                 tcg_const_tl(dc->op2));
+    gen_helper_movl_reg_sreg(cpu_env, c1, c2);
+    tcg_temp_free(c1);
+    tcg_temp_free(c2);
     return 2;
 }
 
@@ -2345,7 +2376,7 @@ static int dec_cmp_m(CPUCRISState *env, DisasContext *dc)
 
 static int dec_test_m(CPUCRISState *env, DisasContext *dc)
 {
-    TCGv t[2];
+    TCGv t[2], c;
     int memsize = memsize_zz(dc);
     int insn_len;
     LOG_DIS("test.%c [$r%u%s] op2=%x\n",
@@ -2360,8 +2391,10 @@ static int dec_test_m(CPUCRISState *env, DisasContext *dc)
     cris_cc_mask(dc, CC_MASK_NZ);
     tcg_gen_andi_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], ~3);
 
+    c = tcg_const_tl(0);
     cris_alu(dc, CC_OP_CMP,
-         cpu_R[dc->op2], t[1], tcg_const_tl(0), memsize_zz(dc));
+         cpu_R[dc->op2], t[1], c, memsize_zz(dc));
+    tcg_temp_free(c);
     do_postinc(dc, memsize);
     cris_alu_m_free_temps(t);
     return insn_len;
@@ -2713,6 +2746,7 @@ static int dec_jump_p(CPUCRISState *env, DisasContext *dc)
 /* Jump and save.  */
 static int dec_jas_r(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c;
     LOG_DIS("jas $r%u, $p%u\n", dc->op1, dc->op2);
     cris_cc_mask(dc, 0);
     /* Store the return address in Pd.  */
@@ -2720,7 +2754,9 @@ static int dec_jas_r(CPUCRISState *env, DisasContext *dc)
     if (dc->op2 > 15) {
         abort();
     }
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 4));
+    c = tcg_const_tl(dc->pc + 4);
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
 
     cris_prepare_jmp(dc, JMP_INDIRECT);
     return 2;
@@ -2729,13 +2765,16 @@ static int dec_jas_r(CPUCRISState *env, DisasContext *dc)
 static int dec_jas_im(CPUCRISState *env, DisasContext *dc)
 {
     uint32_t imm;
+    TCGv c;
 
     imm = cris_fetch(env, dc, dc->pc + 2, 4, 0);
 
     LOG_DIS("jas 0x%x\n", imm);
     cris_cc_mask(dc, 0);
+    c = tcg_const_tl(dc->pc + 8);
     /* Store the return address in Pd.  */
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 8));
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
 
     dc->jmp_pc = imm;
     cris_prepare_jmp(dc, JMP_DIRECT);
@@ -2745,13 +2784,16 @@ static int dec_jas_im(CPUCRISState *env, DisasContext *dc)
 static int dec_jasc_im(CPUCRISState *env, DisasContext *dc)
 {
     uint32_t imm;
+    TCGv c;
 
     imm = cris_fetch(env, dc, dc->pc + 2, 4, 0);
 
     LOG_DIS("jasc 0x%x\n", imm);
     cris_cc_mask(dc, 0);
+    c = tcg_const_tl(dc->pc + 8 + 4);
     /* Store the return address in Pd.  */
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 8 + 4));
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
 
     dc->jmp_pc = imm;
     cris_prepare_jmp(dc, JMP_DIRECT);
@@ -2760,11 +2802,14 @@ static int dec_jasc_im(CPUCRISState *env, DisasContext *dc)
 
 static int dec_jasc_r(CPUCRISState *env, DisasContext *dc)
 {
+    TCGv c;
     LOG_DIS("jasc_r $r%u, $p%u\n", dc->op1, dc->op2);
     cris_cc_mask(dc, 0);
     /* Store the return address in Pd.  */
     tcg_gen_mov_tl(env_btarget, cpu_R[dc->op1]);
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 4 + 4));
+    c = tcg_const_tl(dc->pc + 4 + 4);
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
     cris_prepare_jmp(dc, JMP_INDIRECT);
     return 2;
 }
@@ -2789,13 +2834,16 @@ static int dec_bcc_im(CPUCRISState *env, DisasContext *dc)
 static int dec_bas_im(CPUCRISState *env, DisasContext *dc)
 {
     int32_t simm;
+    TCGv c;
 
     simm = cris_fetch(env, dc, dc->pc + 2, 4, 0);
 
     LOG_DIS("bas 0x%x, $p%u\n", dc->pc + simm, dc->op2);
     cris_cc_mask(dc, 0);
+    c = tcg_const_tl(dc->pc + 8);
     /* Store the return address in Pd.  */
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 8));
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
 
     dc->jmp_pc = dc->pc + simm;
     cris_prepare_jmp(dc, JMP_DIRECT);
@@ -2805,12 +2853,15 @@ static int dec_bas_im(CPUCRISState *env, DisasContext *dc)
 static int dec_basc_im(CPUCRISState *env, DisasContext *dc)
 {
     int32_t simm;
+    TCGv c;
     simm = cris_fetch(env, dc, dc->pc + 2, 4, 0);
 
     LOG_DIS("basc 0x%x, $p%u\n", dc->pc + simm, dc->op2);
     cris_cc_mask(dc, 0);
+    c = tcg_const_tl(dc->pc + 12);
     /* Store the return address in Pd.  */
-    t_gen_mov_preg_TN(dc, dc->op2, tcg_const_tl(dc->pc + 12));
+    t_gen_mov_preg_TN(dc, dc->op2, c);
+    tcg_temp_free(c);
 
     dc->jmp_pc = dc->pc + simm;
     cris_prepare_jmp(dc, JMP_DIRECT);
@@ -2851,8 +2902,7 @@ static int dec_rfe_etc(CPUCRISState *env, DisasContext *dc)
         tcg_gen_movi_tl(env_pc, dc->pc + 2);
 
         /* Breaks start at 16 in the exception vector.  */
-        t_gen_mov_env_TN(trap_vector,
-                tcg_const_tl(dc->op1 + 16));
+        t_gen_movi_env_TN(trap_vector, dc->op1 + 16);
         t_gen_raise_exception(EXCP_BREAK);
         dc->is_jmp = DISAS_UPDATE;
         break;
@@ -3026,7 +3076,7 @@ static unsigned int crisv32_decoder(CPUCRISState *env, DisasContext *dc)
         tcg_gen_brcondi_tl(TCG_COND_NE, cpu_PR[PR_SPC], dc->pc, l1);
         /* We treat SPC as a break with an odd trap vector.  */
         cris_evaluate_flags(dc);
-        t_gen_mov_env_TN(trap_vector, tcg_const_tl(3));
+        t_gen_movi_env_TN(trap_vector, 3);
         tcg_gen_movi_tl(env_pc, dc->pc + insn_len);
         tcg_gen_movi_tl(cpu_PR[PR_SPC], dc->pc + insn_len);
         t_gen_raise_exception(EXCP_BREAK);
@@ -3170,7 +3220,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
             dc->delayed_branch--;
             if (dc->delayed_branch == 0) {
                 if (tb->flags & 7) {
-                    t_gen_mov_env_TN(dslot, tcg_const_tl(0));
+                    t_gen_movi_env_TN(dslot, 0);
                 }
                 if (dc->cpustate_changed || !dc->flagx_known
                     || (dc->flags_x != (tb->flags & X_FLAG))) {
@@ -3179,7 +3229,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
 
                 if (dc->clear_locked_irq) {
                     dc->clear_locked_irq = 0;
-                    t_gen_mov_env_TN(locked_irq, tcg_const_tl(0));
+                    t_gen_movi_env_TN(locked_irq, 0);
                 }
 
                 if (dc->jmp == JMP_DIRECT_CC) {
@@ -3200,7 +3250,9 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
                     dc->is_jmp = DISAS_TB_JUMP;
                     dc->jmp = JMP_NOJMP;
                 } else {
-                    t_gen_cc_jmp(env_btarget, tcg_const_tl(dc->pc));
+                    TCGv c = tcg_const_tl(dc->pc);
+                    t_gen_cc_jmp(env_btarget, c);
+                    tcg_temp_free(c);
                     dc->is_jmp = DISAS_JUMP;
                 }
                 break;
@@ -3219,7 +3271,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
             && num_insns < max_insns);
 
     if (dc->clear_locked_irq) {
-        t_gen_mov_env_TN(locked_irq, tcg_const_tl(0));
+        t_gen_movi_env_TN(locked_irq, 0);
     }
 
     npc = dc->pc;
@@ -3234,7 +3286,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb, int max_insns)
     /* Broken branch+delayslot sequence.  */
     if (dc->delayed_branch == 1) {
         /* Set env->dslot to the size of the branch insn.  */
-        t_gen_mov_env_TN(dslot, tcg_const_tl(dc->pc - dc->ppc));
+        t_gen_movi_env_TN(dslot, dc->pc - dc->ppc);
         cris_store_direct_jmp(dc);
     }
 
diff --git a/target/cris/translate_v10.c.inc b/target/cris/translate_v10.c.inc
index 86d78a8..f7cd67b 100644
--- a/target/cris/translate_v10.c.inc
+++ b/target/cris/translate_v10.c.inc
@@ -228,6 +228,7 @@ static unsigned int dec10_quick_imm(DisasContext *dc)
 {
     int32_t imm, simm;
     int op;
+    TCGv c;
 
     /* sign extend.  */
     imm = dc->ir & ((1 << 6) - 1);
@@ -254,29 +255,37 @@ static unsigned int dec10_quick_imm(DisasContext *dc)
             LOG_DIS("moveq %d, $r%d\n", simm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(simm);
             cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(simm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_CMPQ:
             LOG_DIS("cmpq %d, $r%d\n", simm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(simm);
             cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(simm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_ADDQ:
             LOG_DIS("addq %d, $r%d\n", imm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(imm);
             cris_alu(dc, CC_OP_ADD, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(imm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_ANDQ:
             LOG_DIS("andq %d, $r%d\n", simm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(simm);
             cris_alu(dc, CC_OP_AND, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(simm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_ASHQ:
             LOG_DIS("ashq %d, $r%d\n", simm, dc->dst);
@@ -284,15 +293,17 @@ static unsigned int dec10_quick_imm(DisasContext *dc)
             cris_cc_mask(dc, CC_MASK_NZVC);
             op = imm & (1 << 5);
             imm &= 0x1f;
+            c = tcg_const_tl(imm);
             if (op) {
                 cris_alu(dc, CC_OP_ASR, cpu_R[dc->dst],
-                          cpu_R[dc->dst], tcg_const_tl(imm), 4);
+                          cpu_R[dc->dst], c, 4);
             } else {
                 /* BTST */
                 cris_update_cc_op(dc, CC_OP_FLAGS, 4);
                 gen_helper_btst(cpu_PR[PR_CCS], cpu_env, cpu_R[dc->dst],
-                           tcg_const_tl(imm), cpu_PR[PR_CCS]);
+                           c, cpu_PR[PR_CCS]);
             }
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_LSHQ:
             LOG_DIS("lshq %d, $r%d\n", simm, dc->dst);
@@ -303,22 +314,28 @@ static unsigned int dec10_quick_imm(DisasContext *dc)
             }
             imm &= 0x1f;
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(imm);
             cris_alu(dc, op, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(imm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_SUBQ:
             LOG_DIS("subq %d, $r%d\n", imm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(imm);
             cris_alu(dc, CC_OP_SUB, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(imm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
         case CRISV10_QIMM_ORQ:
             LOG_DIS("andq %d, $r%d\n", simm, dc->dst);
 
             cris_cc_mask(dc, CC_MASK_NZVC);
+            c = tcg_const_tl(simm);
             cris_alu(dc, CC_OP_OR, cpu_R[dc->dst],
-                     cpu_R[dc->dst], tcg_const_tl(simm), 4);
+                     cpu_R[dc->dst], c, 4);
+            tcg_temp_free(c);
             break;
 
         case CRISV10_QIMM_BCC_R0:
@@ -760,7 +777,6 @@ static unsigned int dec10_ind_move_m_r(CPUCRISState *env, DisasContext *dc,
         tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]);
         cris_prepare_jmp(dc, JMP_INDIRECT);
         dc->delayed_branch = 1;
-        return insn_len;
     }
 
     tcg_temp_free(t);
@@ -777,6 +793,7 @@ static unsigned int dec10_ind_move_r_m(DisasContext *dc, unsigned int size)
     crisv10_prepare_memaddr(dc, addr, size);
     gen_store_v10(dc, addr, cpu_R[dc->dst], size);
     insn_len += crisv10_post_memaddr(dc, size);
+    tcg_temp_free(addr);
 
     return insn_len;
 }
@@ -796,11 +813,10 @@ static unsigned int dec10_ind_move_m_pr(CPUCRISState *env, DisasContext *dc)
         tcg_gen_mov_tl(env_btarget, t);
         cris_prepare_jmp(dc, JMP_INDIRECT);
         dc->delayed_branch = 1;
-        return insn_len;
+    } else {
+        tcg_gen_mov_tl(cpu_PR[rd], t);
+        dc->cpustate_changed = 1;
     }
-
-    tcg_gen_mov_tl(cpu_PR[rd], t);
-    dc->cpustate_changed = 1;
     tcg_temp_free(addr);
     tcg_temp_free(t);
     return insn_len;
@@ -824,8 +840,8 @@ static unsigned int dec10_ind_move_pr_m(DisasContext *dc)
     } else {
         gen_store_v10(dc, addr, cpu_PR[dc->dst], size);
     }
-    t0 = tcg_temp_new();
     insn_len += crisv10_post_memaddr(dc, size);
+    tcg_temp_free(addr);
     cris_lock_irq(dc);
 
     return insn_len;
@@ -927,7 +943,6 @@ static int dec10_ind_bound(CPUCRISState *env, DisasContext *dc,
         tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]);
         cris_prepare_jmp(dc, JMP_INDIRECT);
         dc->delayed_branch = 1;
-        return insn_len;
     }
 
     tcg_temp_free(t);
@@ -953,7 +968,6 @@ static int dec10_alux_m(CPUCRISState *env, DisasContext *dc, int op)
         tcg_gen_mov_tl(env_btarget, cpu_R[dc->dst]);
         cris_prepare_jmp(dc, JMP_INDIRECT);
         dc->delayed_branch = 1;
-        return insn_len;
     }
 
     tcg_temp_free(t);
@@ -1020,7 +1034,7 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
     unsigned int size = dec10_size(dc->size);
     uint32_t imm;
     int32_t simm;
-    TCGv t[2];
+    TCGv t[2], c;
 
     if (dc->size != 3) {
         switch (dc->opcode) {
@@ -1041,8 +1055,10 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
                 cris_alu_m_alloc_temps(t);
                 insn_len += dec10_prep_move_m(env, dc, 0, size, t[0]);
                 tcg_gen_andi_tl(cpu_PR[PR_CCS], cpu_PR[PR_CCS], ~3);
+                c = tcg_const_tl(0);
                 cris_alu(dc, CC_OP_CMP, cpu_R[dc->dst],
-                         t[0], tcg_const_tl(0), size);
+                         t[0], c, size);
+                tcg_temp_free(c);
                 cris_alu_m_free_temps(t);
                 break;
             case CRISV10_IND_ADD:
@@ -1138,7 +1154,9 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
                 if (dc->mode == CRISV10_MODE_AUTOINC)
                     insn_len += size;
 
-                t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len));
+                c = tcg_const_tl(dc->pc + insn_len);
+                t_gen_mov_preg_TN(dc, dc->dst, c);
+                tcg_temp_free(c);
                 dc->jmp_pc = imm;
                 cris_prepare_jmp(dc, JMP_DIRECT);
                 dc->delayed_branch--; /* v10 has no dslot here.  */
@@ -1147,7 +1165,9 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
                     LOG_DIS("break %d\n", dc->src);
                     cris_evaluate_flags(dc);
                     tcg_gen_movi_tl(env_pc, dc->pc + 2);
-                    t_gen_mov_env_TN(trap_vector, tcg_const_tl(dc->src + 2));
+                    c = tcg_const_tl(dc->src + 2);
+                    t_gen_mov_env_TN(trap_vector, c);
+                    tcg_temp_free(c);
                     t_gen_raise_exception(EXCP_BREAK);
                     dc->is_jmp = DISAS_UPDATE;
                     return insn_len;
@@ -1155,7 +1175,9 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
                 LOG_DIS("%d: jump.%d %d r%d r%d\n", __LINE__, size,
                          dc->opcode, dc->src, dc->dst);
                 t[0] = tcg_temp_new();
-                t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len));
+                c = tcg_const_tl(dc->pc + insn_len);
+                t_gen_mov_preg_TN(dc, dc->dst, c);
+                tcg_temp_free(c);
                 crisv10_prepare_memaddr(dc, t[0], size);
                 gen_load(dc, env_btarget, t[0], 4, 0);
                 insn_len += crisv10_post_memaddr(dc, size);
@@ -1178,7 +1200,9 @@ static unsigned int dec10_ind(CPUCRISState *env, DisasContext *dc)
             LOG_DIS("jmp pc=%x opcode=%d r%d r%d\n",
                         dc->pc, dc->opcode, dc->dst, dc->src);
             tcg_gen_mov_tl(env_btarget, cpu_R[dc->src]);
-            t_gen_mov_preg_TN(dc, dc->dst, tcg_const_tl(dc->pc + insn_len));
+            c = tcg_const_tl(dc->pc + insn_len);
+            t_gen_mov_preg_TN(dc, dc->dst, c);
+            tcg_temp_free(c);
             cris_prepare_jmp(dc, JMP_INDIRECT);
             dc->delayed_branch--; /* v10 has no dslot here.  */
             break;