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[Qemu-devel] [PATCH] target-cris: Use new qemu_ld/st opcodes


From: Richard Henderson
Subject: [Qemu-devel] [PATCH] target-cris: Use new qemu_ld/st opcodes
Date: Sat, 7 Dec 2013 14:52:34 +1300

Using the new opcodes we can reduce if/else trees to
a single statement.

Cc: Edgar E. Iglesias <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
---
 target-cris/translate.c | 29 ++++-------------------------
 1 file changed, 4 insertions(+), 25 deletions(-)

diff --git a/target-cris/translate.c b/target-cris/translate.c
index 5faa44c..f990d59 100644
--- a/target-cris/translate.c
+++ b/target-cris/translate.c
@@ -1133,7 +1133,7 @@ static void gen_load64(DisasContext *dc, TCGv_i64 dst, 
TCGv addr)
         cris_store_direct_jmp(dc);
     }
 
-    tcg_gen_qemu_ld64(dst, addr, mem_index);
+    tcg_gen_qemu_ld_i64(dst, addr, mem_index, MO_TEQ);
 }
 
 static void gen_load(DisasContext *dc, TCGv dst, TCGv addr, 
@@ -1147,23 +1147,8 @@ static void gen_load(DisasContext *dc, TCGv dst, TCGv 
addr,
         cris_store_direct_jmp(dc);
     }
 
-    if (size == 1) {
-        if (sign) {
-            tcg_gen_qemu_ld8s(dst, addr, mem_index);
-        } else {
-            tcg_gen_qemu_ld8u(dst, addr, mem_index);
-        }
-    } else if (size == 2) {
-        if (sign) {
-            tcg_gen_qemu_ld16s(dst, addr, mem_index);
-        } else {
-            tcg_gen_qemu_ld16u(dst, addr, mem_index);
-        }
-    } else if (size == 4) {
-        tcg_gen_qemu_ld32u(dst, addr, mem_index);
-    } else {
-        abort();
-    }
+    tcg_gen_qemu_ld_tl(dst, addr, mem_index,
+                       MO_TE + ctz32(size) + (sign ? MO_SIGN : 0));
 }
 
 static void gen_store (DisasContext *dc, TCGv addr, TCGv val,
@@ -1187,13 +1172,7 @@ static void gen_store (DisasContext *dc, TCGv addr, TCGv 
val,
         return;
     }
 
-    if (size == 1) {
-        tcg_gen_qemu_st8(val, addr, mem_index);
-    } else if (size == 2) {
-        tcg_gen_qemu_st16(val, addr, mem_index);
-    } else {
-        tcg_gen_qemu_st32(val, addr, mem_index);
-    }
+    tcg_gen_qemu_st_tl(val, addr, mem_index, MO_TE + ctz32(size));
 
     if (dc->flagx_known && dc->flags_x) {
         cris_evaluate_flags(dc);
-- 
1.8.3.1




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