diff --git a/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr b/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr
index b60e3337b44..2cae35bc4d0 100644
--- a/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr
+++ b/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr
@@ -158,11 +158,11 @@ error[E0080]: it is undefined behavior to use this value
   --> $DIR/ub-ref-ptr.rs:62:1
    |
 LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) };
-   | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered pointer to alloc43, but expected a function pointer
+   | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered pointer to alloc41, but expected a function pointer
    |
    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
    = note: the raw bytes of the constant (size: 4, align: 4) {
-               ╾─alloc43─╼                                     │ ╾──╼
+               ╾─alloc41─╼                                     │ ╾──╼
            }
 
 error: aborting due to 16 previous errors
diff --git a/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr b/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr
index 505ef2dd7d7..e2cd0e64db8 100644
--- a/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr
+++ b/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr
@@ -158,11 +158,11 @@ error[E0080]: it is undefined behavior to use this value
   --> $DIR/ub-ref-ptr.rs:62:1
    |
 LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) };
-   | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered pointer to alloc43, but expected a function pointer
+   | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered pointer to alloc41, but expected a function pointer
    |
    = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior.
    = note: the raw bytes of the constant (size: 8, align: 8) {
-               ╾───────alloc43───────╼                         │ ╾──────╼
+               ╾───────alloc41───────╼                         │ ╾──────╼
            }
 
 error: aborting due to 16 previous errors
diff --git a/src/test/ui/consts/offset_from_ub.stderr b/src/test/ui/consts/offset_from_ub.stderr
index daa1d736758..94d778bc8a1 100644
--- a/src/test/ui/consts/offset_from_ub.stderr
+++ b/src/test/ui/consts/offset_from_ub.stderr
@@ -40,19 +40,19 @@ error[E0080]: evaluation of constant value failed
   --> $DIR/offset_from_ub.rs:52:14
    |
 LL |     unsafe { ptr_offset_from(end_ptr, start_ptr) }
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc20 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
+   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc18 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/offset_from_ub.rs:61:14
    |
 LL |     unsafe { ptr_offset_from(start_ptr, end_ptr) }
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc23 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
+   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc21 has size 4, so pointer to 10 bytes starting at offset 0 is out-of-bounds
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/offset_from_ub.rs:69:14
    |
 LL |     unsafe { ptr_offset_from(end_ptr, end_ptr) }
-   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc26 has size 4, so pointer at offset 10 is out-of-bounds
+   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: alloc24 has size 4, so pointer at offset 10 is out-of-bounds
 
 error[E0080]: evaluation of constant value failed
   --> $DIR/offset_from_ub.rs:78:27