d: Merge upstream dmd, druntime d115713410, phobos 1b242048c.

D front-end changes:

	- Import latest fixes from dmd v2.110.0-rc.1.
	- Integers in debug or version statements have been removed from
	  the language.

D runtime changes:

	- Import latest fixes from druntime v2.110.0-rc.1.

Phobos changes:

	- Import latest fixes from phobos v2.110.0-rc.1.

gcc/d/ChangeLog:

	* dmd/MERGE: Merge upstream dmd d115713410.

libphobos/ChangeLog:

	* libdruntime/MERGE: Merge upstream druntime d115713410.
	* src/MERGE: Merge upstream phobos 1b242048c.

gcc/testsuite/ChangeLog:

	* gdc.dg/asm3.d: Adjust test.

1 files changed, 23 insertions, 0 deletions

diff --git a/libphobos/src/std/algorithm/mutation.d b/libphobos/src/std/algorithm/mutation.d
index ea1a1b2..8a45ecb 100644
--- a/libphobos/src/std/algorithm/mutation.d
+++ b/libphobos/src/std/algorithm/mutation.d
@@ -2885,6 +2885,17 @@ if (isBlitAssignable!T && !is(typeof(lhs.proxySwap(rhs))))
     {
         if (&lhs != &rhs)
         {
+            static if (__traits(compiles, lhs.tupleof = rhs.tupleof))
+            {
+                if (__ctfe)
+                {
+                    // can't reinterpret cast
+                    foreach (i, ref e; lhs.tupleof)
+                        swap(e, rhs.tupleof[i]);
+                    return;
+                }
+            }
+
             // For structs with non-trivial assignment, move memory directly
             ubyte[T.sizeof] t = void;
             auto a = (cast(ubyte*) &lhs)[0 .. T.sizeof];
@@ -3128,6 +3139,18 @@ if (isBlitAssignable!T && !is(typeof(lhs.proxySwap(rhs))))
     swap(a3, a4);
 }
 
+// https://issues.dlang.org/show_bug.cgi?id=21429
+@safe unittest
+{
+    enum e = (){
+        Tuple!int a = 5, b = 6;
+        swap(a, b);
+        assert(a[0] == 6);
+        assert(b[0] == 5);
+        return 0;
+    }();
+}
+
 /**
 Swaps two elements in-place of a range `r`,
 specified by their indices `i1` and `i2`.