[PATCH v7 42/64] target/nios2: Use tcg_constant_tl

[Richard Henderson]

Replace current uses of tcg_const_tl, and remove the frees.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/nios2/translate.c | 30 ++++++------------------------
 1 file changed, 6 insertions(+), 24 deletions(-)

diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index b27269bf08..f33015f942 100644
--- a/target/nios2/translate.c
+++ b/target/nios2/translate.c
@@ -99,7 +99,6 @@
 
 typedef struct DisasContext {
     DisasContextBase  base;
-    TCGv_i32          zero;
     target_ulong      pc;
     int               mem_idx;
     const ControlRegState *cr_state;
@@ -125,31 +124,20 @@ static uint8_t get_opxcode(uint32_t code)
     return instr.opx;
 }
 
-static TCGv load_zero(DisasContext *dc)
+static TCGv load_gpr(DisasContext *dc, unsigned reg)
 {
-    if (!dc->zero) {
-        dc->zero = tcg_const_i32(0);
-    }
-    return dc->zero;
-}
-
-static TCGv load_gpr(DisasContext *dc, uint8_t reg)
-{
-    if (likely(reg != R_ZERO)) {
-        return cpu_R[reg];
-    } else {
-        return load_zero(dc);
+    assert(reg < NUM_GP_REGS);
+    if (unlikely(reg == R_ZERO)) {
+        return tcg_constant_tl(0);
     }
+    return cpu_R[reg];
 }
 
 static void t_gen_helper_raise_exception(DisasContext *dc,
                                          uint32_t index)
 {
-    TCGv_i32 tmp = tcg_const_i32(index);
-
     tcg_gen_movi_tl(cpu_pc, dc->pc);
-    gen_helper_raise_exception(cpu_env, tmp);
-    tcg_temp_free_i32(tmp);
+    gen_helper_raise_exception(cpu_env, tcg_constant_i32(index));
     dc->base.is_jmp = DISAS_NORETURN;
 }
 
@@ -876,14 +864,8 @@ static void nios2_tr_translate_insn(DisasContextBase 
*dcbase, CPUState *cs)
         return;
     }
 
-    dc->zero = NULL;
-
     instr = &i_type_instructions[op];
     instr->handler(dc, code, instr->flags);
-
-    if (dc->zero) {
-        tcg_temp_free(dc->zero);
-    }
 }
 
 static void nios2_tr_tb_stop(DisasContextBase *dcbase, CPUState *cs)
-- 
2.34.1