6 files changed, 122 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-32122-1.fixed b/src/test/ui/issues/issue-32122-1.fixed
new file mode 100644
index 00000000000..4fc5f64ff9a
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-1.fixed
@@ -0,0 +1,17 @@
+// run-rustfix
+use std::ops::Deref;
+
+struct Foo(u8);
+
+impl Deref for Foo {
+    type Target = u8;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+fn main() {
+    let a = Foo(0);
+    // Should suggest `&*` when coercing &ty to *const ty
+    let _: *const u8 = &*a; //~ ERROR mismatched types
+}
diff --git a/src/test/ui/issues/issue-32122-1.rs b/src/test/ui/issues/issue-32122-1.rs
new file mode 100644
index 00000000000..3c4859f07a2
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-1.rs
@@ -0,0 +1,17 @@
+// run-rustfix
+use std::ops::Deref;
+
+struct Foo(u8);
+
+impl Deref for Foo {
+    type Target = u8;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
+fn main() {
+    let a = Foo(0);
+    // Should suggest `&*` when coercing &ty to *const ty
+    let _: *const u8 = &a; //~ ERROR mismatched types
+}
diff --git a/src/test/ui/issues/issue-32122-1.stderr b/src/test/ui/issues/issue-32122-1.stderr
new file mode 100644
index 00000000000..313de275c53
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-1.stderr
@@ -0,0 +1,16 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-32122-1.rs:16:24
+   |
+LL |     let _: *const u8 = &a;
+   |            ---------   ^^
+   |            |           |
+   |            |           expected `u8`, found struct `Foo`
+   |            |           help: consider dereferencing the reference: `&*a`
+   |            expected due to this
+   |
+   = note: expected raw pointer `*const u8`
+                found reference `&Foo`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.
diff --git a/src/test/ui/issues/issue-32122-2.fixed b/src/test/ui/issues/issue-32122-2.fixed
new file mode 100644
index 00000000000..cee0e592976
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-2.fixed
@@ -0,0 +1,28 @@
+// run-rustfix
+use std::ops::Deref;
+struct Bar(u8);
+struct Foo(Bar);
+struct Emm(Foo);
+impl Deref for Bar{
+    type Target = u8;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl Deref for Foo {
+    type Target = Bar;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl Deref for Emm {
+    type Target = Foo;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+fn main() {
+    let a = Emm(Foo(Bar(0)));
+    // Should suggest `&***` even when deref is pretty deep
+    let _: *const u8 = &***a; //~ ERROR mismatched types
+}
diff --git a/src/test/ui/issues/issue-32122-2.rs b/src/test/ui/issues/issue-32122-2.rs
new file mode 100644
index 00000000000..39e9df4224e
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-2.rs
@@ -0,0 +1,28 @@
+// run-rustfix
+use std::ops::Deref;
+struct Bar(u8);
+struct Foo(Bar);
+struct Emm(Foo);
+impl Deref for Bar{
+    type Target = u8;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl Deref for Foo {
+    type Target = Bar;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+impl Deref for Emm {
+    type Target = Foo;
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+fn main() {
+    let a = Emm(Foo(Bar(0)));
+    // Should suggest `&***` even when deref is pretty deep
+    let _: *const u8 = &a; //~ ERROR mismatched types
+}
diff --git a/src/test/ui/issues/issue-32122-2.stderr b/src/test/ui/issues/issue-32122-2.stderr
new file mode 100644
index 00000000000..959a49507e4
--- /dev/null
+++ b/src/test/ui/issues/issue-32122-2.stderr
@@ -0,0 +1,16 @@
+error[E0308]: mismatched types
+  --> $DIR/issue-32122-2.rs:27:24
+   |
+LL |     let _: *const u8 = &a;
+   |            ---------   ^^
+   |            |           |
+   |            |           expected `u8`, found struct `Emm`
+   |            |           help: consider dereferencing the reference: `&***a`
+   |            expected due to this
+   |
+   = note: expected raw pointer `*const u8`
+                found reference `&Emm`
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0308`.