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[02/25] target-sparc: Remove softint as a TCG global

Message ID 1450385695-1940-3-git-send-email-rth@twiddle.net
State New
Headers show

Commit Message

Richard Henderson Dec. 17, 2015, 8:54 p.m. UTC 
The global is only ever read for one insn; we can just as well
use a load from env instead and generate the same code.  This
also allows us to indicate the the associated helpers do not
touch TCG globals.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 target-sparc/helper.h    | 6 +++---
 target-sparc/translate.c | 5 ++---
 2 files changed, 5 insertions(+), 6 deletions(-)
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Patch

diff --git a/target-sparc/helper.h b/target-sparc/helper.h
index 336a80c..5268f28 100644
--- a/target-sparc/helper.h
+++ b/target-sparc/helper.h
@@ -21,9 +21,9 @@  DEF_HELPER_4(ldda_asi, void, env, tl, int, int)
 DEF_HELPER_5(ldf_asi, void, env, tl, int, int, int)
 DEF_HELPER_FLAGS_5(stf_asi, TCG_CALL_NO_WG, void, env, tl, int, int, int)
 DEF_HELPER_FLAGS_5(casx_asi, TCG_CALL_NO_WG, tl, env, tl, tl, tl, i32)
-DEF_HELPER_2(set_softint, void, env, i64)
-DEF_HELPER_2(clear_softint, void, env, i64)
-DEF_HELPER_2(write_softint, void, env, i64)
+DEF_HELPER_FLAGS_2(set_softint, TCG_CALL_NO_RWG, void, env, i64)
+DEF_HELPER_FLAGS_2(clear_softint, TCG_CALL_NO_RWG, void, env, i64)
+DEF_HELPER_FLAGS_2(write_softint, TCG_CALL_NO_RWG, void, env, i64)
 DEF_HELPER_FLAGS_2(tick_set_count, TCG_CALL_NO_RWG, void, ptr, i64)
 DEF_HELPER_FLAGS_1(tick_get_count, TCG_CALL_NO_RWG_SE, i64, ptr)
 DEF_HELPER_FLAGS_2(tick_set_limit, TCG_CALL_NO_RWG, void, ptr, i64)
diff --git a/target-sparc/translate.c b/target-sparc/translate.c
index c818a36..e517726 100644
--- a/target-sparc/translate.c
+++ b/target-sparc/translate.c
@@ -58,7 +58,6 @@  static TCGv_i32 cpu_xcc, cpu_asi, cpu_fprs;
 static TCGv cpu_gsr;
 static TCGv cpu_tick_cmpr, cpu_stick_cmpr, cpu_hstick_cmpr;
 static TCGv cpu_hintp, cpu_htba, cpu_hver, cpu_ssr, cpu_ver;
-static TCGv_i32 cpu_softint;
 #else
 static TCGv cpu_wim;
 #endif
@@ -2737,7 +2736,8 @@  static void disas_sparc_insn(DisasContext * dc, unsigned int insn)
                     gen_store_gpr(dc, rd, cpu_gsr);
                     break;
                 case 0x16: /* Softint */
-                    tcg_gen_ext_i32_tl(cpu_dst, cpu_softint);
+                    tcg_gen_ld32s_tl(cpu_dst, cpu_env,
+                                     offsetof(CPUSPARCState, softint));
                     gen_store_gpr(dc, rd, cpu_dst);
                     break;
                 case 0x17: /* Tick compare */
@@ -5335,7 +5335,6 @@  void gen_intermediate_code_init(CPUSPARCState *env)
         { &cpu_xcc, offsetof(CPUSPARCState, xcc), "xcc" },
         { &cpu_asi, offsetof(CPUSPARCState, asi), "asi" },
         { &cpu_fprs, offsetof(CPUSPARCState, fprs), "fprs" },
-        { &cpu_softint, offsetof(CPUSPARCState, softint), "softint" },
 #else
         { &cpu_wim, offsetof(CPUSPARCState, wim), "wim" },
 #endif