From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Tue, 4 Mar 2008 23:52:47 +0000 (+0000)
Subject: 32-bit host sign extension fix (Juergen Lock).
X-Git-Tag: xen-3.3.0-rc1~343
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=21fc3cfc10a016a8cd253898b5c1cb8f331983e5;p=qemu-xen-4.1-testing.git

32-bit host sign extension fix (Juergen Lock).


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4017 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/tcg/tcg-op.h b/tcg/tcg-op.h
index e5047418a..602a6bf9c 100644
--- a/tcg/tcg-op.h
+++ b/tcg/tcg-op.h
@@ -1172,7 +1172,7 @@ static inline void tcg_gen_qemu_ld8s(TCGv ret, TCGv addr, int mem_index)
     tcg_gen_op3i(INDEX_op_qemu_ld8s, ret, addr, mem_index);
 #else
     tcg_gen_op4i(INDEX_op_qemu_ld8s, ret, addr, TCGV_HIGH(addr), mem_index);
-    tcg_gen_ext8s_i32(TCGV_HIGH(ret), ret);
+    tcg_gen_sari_i32(TCGV_HIGH(ret), ret, 31);
 #endif
 }
 
@@ -1192,7 +1192,7 @@ static inline void tcg_gen_qemu_ld16s(TCGv ret, TCGv addr, int mem_index)
     tcg_gen_op3i(INDEX_op_qemu_ld16s, ret, addr, mem_index);
 #else
     tcg_gen_op4i(INDEX_op_qemu_ld16s, ret, addr, TCGV_HIGH(addr), mem_index);
-    tcg_gen_ext16s_i32(TCGV_HIGH(ret), ret);
+    tcg_gen_sari_i32(TCGV_HIGH(ret), ret, 31);
 #endif
 }