target/xtensa: use tcg_constant_* for exceptions

Use tcg_contant_* for exception number, exception cause, debug cause
code and exception PC.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 58b3e32dcb05381e2a282efb91736009fd3f5faf..a21cfa91edc85c0bab5a009721ca03f93307a5d5 100644 (file)
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -318,18 +318,13 @@ static void gen_left_shift_sar(DisasContext *dc, TCGv_i32 sa)
 
 static void gen_exception(DisasContext *dc, int excp)
 {
-    TCGv_i32 tmp = tcg_const_i32(excp);
-    gen_helper_exception(cpu_env, tmp);
-    tcg_temp_free(tmp);
+    gen_helper_exception(cpu_env, tcg_constant_i32(excp));
 }
 
 static void gen_exception_cause(DisasContext *dc, uint32_t cause)
 {
-    TCGv_i32 tpc = tcg_const_i32(dc->pc);
-    TCGv_i32 tcause = tcg_const_i32(cause);
-    gen_helper_exception_cause(cpu_env, tpc, tcause);
-    tcg_temp_free(tpc);
-    tcg_temp_free(tcause);
+    TCGv_i32 pc = tcg_constant_i32(dc->pc);
+    gen_helper_exception_cause(cpu_env, pc, tcg_constant_i32(cause));
     if (cause == ILLEGAL_INSTRUCTION_CAUSE ||
             cause == SYSCALL_CAUSE) {
         dc->base.is_jmp = DISAS_NORETURN;
@@ -338,11 +333,8 @@ static void gen_exception_cause(DisasContext *dc, uint32_t cause)
 
 static void gen_debug_exception(DisasContext *dc, uint32_t cause)
 {
-    TCGv_i32 tpc = tcg_const_i32(dc->pc);
-    TCGv_i32 tcause = tcg_const_i32(cause);
-    gen_helper_debug_exception(cpu_env, tpc, tcause);
-    tcg_temp_free(tpc);
-    tcg_temp_free(tcause);
+    TCGv_i32 pc = tcg_constant_i32(dc->pc);
+    gen_helper_debug_exception(cpu_env, pc, tcg_constant_i32(cause));
     if (cause & (DEBUGCAUSE_IB | DEBUGCAUSE_BI | DEBUGCAUSE_BN)) {
         dc->base.is_jmp = DISAS_NORETURN;
     }