Merge pull request #5924 from MartinNowak/fix16225

fix Issue 16225 - [REG 2.068] Internal error cod1.c 1338 with -O
dlang · Jul 9, 2016 · 8a4a90f · 8a4a90f
2 parents a89a9eb + ebbb2c6
commit 8a4a90f
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Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/src/backend/cod1.c b/src/backend/cod1.c
@@ -1359,7 +1359,8 @@ code *getlvalue(code *pcs,elem *e,regm_t keepmsk)
         if (sz == 1)
         {   /* Don't use SI or DI for this variable     */
             s->Sflags |= GTbyte;
-            if (e->EV.sp.Voffset > 1)
+            if (e->EV.sp.Voffset > 1 ||
+                I64)                            // could work if restrict reg to AH,BH,CH,DH
                 s->Sflags &= ~GTregcand;
         }
         else if (e->EV.sp.Voffset)

diff --git a/test/compilable/test16225.d b/test/compilable/test16225.d
@@ -0,0 +1,14 @@
+// REQUIRED_ARGS: -O -m64
+// PERMUTE_ARGS:
+
+// https://issues.dlang.org/show_bug.cgi?id=16225
+
+struct C
+{
+    hash_t foo( )
+    {
+        int y;
+        return ((cast(ubyte*)&y)[1]);
+    }
+}
+