Merge pull request #8361 from quickfur/tracegc

Fix issue 14892: std.array.array support for -profile=gc.

std/array.d

@@ -939,6 +939,11 @@ if (isDynamicArray!T && allSatisfy!(isIntegral, I))
 // from rt/lifetime.d
 private extern(C) void[] _d_newarrayU(const TypeInfo ti, size_t length) pure nothrow;
 
+// from rt/tracegc.d
+version (D_ProfileGC)
+private extern (C) void[] _d_newarrayUTrace(string file, size_t line,
+    string funcname, const scope TypeInfo ti, size_t length) pure nothrow;
+
 private auto arrayAllocImpl(bool minimallyInitialized, T, I...)(I sizes) nothrow
 {
     static assert(I.length <= nDimensions!T,
@@ -992,7 +997,15 @@ private auto arrayAllocImpl(bool minimallyInitialized, T, I...)(I sizes) nothrow
               _d_newarrayU returns a void[], but with the length set according
               to E.sizeof.
             +/
-            *(cast(void[]*)&ret) = _d_newarrayU(typeid(E[]), size);
+            version (D_ProfileGC)
+            {
+                // FIXME: file, line, function should be propagated from the
+                // caller, not here.
+                *(cast(void[]*)&ret) = _d_newarrayUTrace(__FILE__, __LINE__,
+                    __FUNCTION__, typeid(E[]), size);
+            }
+            else
+                *(cast(void[]*)&ret) = _d_newarrayU(typeid(E[]), size);
             static if (minimallyInitialized && hasIndirections!E)
                 // _d_newarrayU would have asserted if the multiplication below
                 // had overflowed, so we don't have to check it again.