Commit 7062c8a886

@@ -8001,7 +8001,12 @@ fn analyzePtrArithmetic(
                 const offset_int = offset_val.toUnsignedInt();
                 if (ptr_val.getUnsignedInt()) |addr| {
                     const target = sema.mod.getTarget();
-                    const elem_ty = ptr_ty.childType();
+                    const ptr_child_ty = ptr_ty.childType();
+                    const elem_ty = if (ptr_ty.isSinglePointer() and ptr_child_ty.zigTypeTag() == .Array)
+                        ptr_child_ty.childType()
+                    else
+                        ptr_child_ty;
+
                     const elem_size = elem_ty.abiSize(target);
                     const new_addr = switch (air_tag) {
                         .ptr_add => addr + elem_size * offset_int,

@@ -0,0 +1,12 @@
+const std = @import("std");
+const expect = std.testing.expect;
+
+const x = @intToPtr([*]i32, 0x1000)[0..0x500];
+const y = x[0x100..];
+test "compile time slice of pointer to hard coded address" {
+    try expect(@ptrToInt(x) == 0x1000);
+    try expect(x.len == 0x500);
+
+    try expect(@ptrToInt(y) == 0x1400);
+    try expect(y.len == 0x400);
+}

@@ -65,6 +65,7 @@ test {
     if (builtin.zig_is_stage2) {
         // When all comptime_memory.zig tests pass, #9646 can be closed.
         // _ = @import("behavior/comptime_memory.zig");
+        _ = @import("behavior/slice_stage2.zig");
     } else {
         _ = @import("behavior/align_stage1.zig");
         _ = @import("behavior/alignof.zig");