src/backend/cgelem.c

@@ -3528,9 +3528,11 @@ STATIC elem * eleq(elem *e, goal_t goal)
         if (tysize(e1->Ety) == 2 * REGSIZE &&
             e1->Eoper == OPvar &&
             (e2->Eoper == OPpair || e2->Eoper == OPrpair) &&
-            goal == GOALnone
+            goal == GOALnone &&
+            !el_appears(e2, e1->EV.sp.Vsym)
            )
         {
+            //printf("** before:\n"); WReqn(e); printf("\n");
             tym_t ty = (REGSIZE == 8) ? TYllong : TYint;
             if (tyfloating(e1->Ety) && REGSIZE >= 4)
                 ty = (REGSIZE == 8) ? TYdouble : TYfloat;
@@ -3545,8 +3547,8 @@ STATIC elem * eleq(elem *e, goal_t goal)
             {
                 e->E2 = e2->E1;
                 eb = el_bin(OPeq,ty,eb,e2->E2);
-                e2->E1 = eb;
-                e2->E2 = e;
+                e2->E1 = e;
+                e2->E2 = eb;
             }
             else
             {
@@ -3557,6 +3559,7 @@ STATIC elem * eleq(elem *e, goal_t goal)
             }
 
             e2->Eoper = OPcomma;
+            //printf("** after:\n"); WReqn(e2); printf("\n");
             return optelem(e2,goal);
         }
 

test/runnable/mars1.d

@@ -1357,7 +1357,36 @@ void test2()
 }
 
 ////////////////////////////////////////////////////////////////////////
-
+
+void test3()
+{
+    int[6] a;
+    int[] b;
+    b = a;
+    b = (b.ptr + b.length - 5)[0 .. b.ptr + b.length - 1 - a.ptr];
+    assert(b.ptr == a.ptr + 1);
+    assert(b.length == 5);
+}
+
+////////////////////////////////////////////////////////////////////////
+
+void[] calloc15272(size_t bc) nothrow pure
+{
+    assert(bc == 1);
+    return new void[1];
+}
+
+void test15272()
+{
+    void[] scache = cast(void[])"abc";
+    size_t count = 1;
+    void[]* buckets = &scache;
+    *buckets = calloc15272(count)[0 .. count];
+}
+
+
+////////////////////////////////////////////////////////////////////////
+
 int main()
 {
     testgoto();
@@ -1402,6 +1431,8 @@ int main()
     test14220();
     test14829();
     test2();
+    test3();
+    test15272();
     printf("Success\n");
     return 0;
 }