[Qemu-devel] [4620] Fix truncate/extend reversal in MIPS DIV{, U} handling, by Richard Sandiford.

[Thiemo Seufer]

Revision: 4620
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4620
Author:   ths
Date:     2008-05-29 18:28:07 +0000 (Thu, 29 May 2008)

Log Message:
-----------
Fix truncate/extend reversal in MIPS DIV{, U} handling, by Richard Sandiford.

Modified Paths:
--------------
    trunk/target-mips/translate.c

Modified: trunk/target-mips/translate.c
===================================================================
--- trunk/target-mips/translate.c       2008-05-29 18:23:31 UTC (rev 4619)
+++ trunk/target-mips/translate.c       2008-05-29 18:28:07 UTC (rev 4620)
@@ -1906,12 +1906,12 @@
                 TCGv r_tmp2 = new_tmp();
                 TCGv r_tmp3 = new_tmp();
 
-                tcg_gen_ext_i32_tl(r_tmp1, cpu_T[0]);
-                tcg_gen_ext_i32_tl(r_tmp2, cpu_T[1]);
+                tcg_gen_trunc_tl_i32(r_tmp1, cpu_T[0]);
+                tcg_gen_trunc_tl_i32(r_tmp2, cpu_T[1]);
                 tcg_gen_div_i32(r_tmp3, r_tmp1, r_tmp2);
                 tcg_gen_rem_i32(r_tmp1, r_tmp1, r_tmp2);
-                tcg_gen_trunc_tl_i32(cpu_T[0], r_tmp3);
-                tcg_gen_trunc_tl_i32(cpu_T[1], r_tmp1);
+                tcg_gen_ext_i32_tl(cpu_T[0], r_tmp3);
+                tcg_gen_ext_i32_tl(cpu_T[1], r_tmp1);
                 gen_store_LO(cpu_T[0], 0);
                 gen_store_HI(cpu_T[1], 0);
                 dead_tmp(r_tmp1);
@@ -1932,12 +1932,12 @@
                 TCGv r_tmp2 = new_tmp();
                 TCGv r_tmp3 = new_tmp();
 
-                tcg_gen_ext_i32_tl(r_tmp1, cpu_T[0]);
-                tcg_gen_ext_i32_tl(r_tmp2, cpu_T[1]);
+                tcg_gen_trunc_tl_i32(r_tmp1, cpu_T[0]);
+                tcg_gen_trunc_tl_i32(r_tmp2, cpu_T[1]);
                 tcg_gen_divu_i32(r_tmp3, r_tmp1, r_tmp2);
                 tcg_gen_remu_i32(r_tmp1, r_tmp1, r_tmp2);
-                tcg_gen_trunc_tl_i32(cpu_T[0], r_tmp3);
-                tcg_gen_trunc_tl_i32(cpu_T[1], r_tmp1);
+                tcg_gen_ext_i32_tl(cpu_T[0], r_tmp3);
+                tcg_gen_ext_i32_tl(cpu_T[1], r_tmp1);
                 gen_store_LO(cpu_T[0], 0);
                 gen_store_HI(cpu_T[1], 0);
                 dead_tmp(r_tmp1);