diff --git a/tests/ui/cfg/both-true-false.rs b/tests/ui/cfg/both-true-false.rs
index 5fca8f654ad8e..62a4ef6a2dbe9 100644
--- a/tests/ui/cfg/both-true-false.rs
+++ b/tests/ui/cfg/both-true-false.rs
@@ -1,5 +1,6 @@
 /// Test that placing a `cfg(true)` and `cfg(false)` on the same item result in
 //. it being disabled.`
+//@ reference: cfg.attr.duplicates
 
 #[cfg(false)]
 #[cfg(true)]
diff --git a/tests/ui/cfg/both-true-false.stderr b/tests/ui/cfg/both-true-false.stderr
index 1a7c509aec0c7..76a5661f0873d 100644
--- a/tests/ui/cfg/both-true-false.stderr
+++ b/tests/ui/cfg/both-true-false.stderr
@@ -1,11 +1,11 @@
 error[E0425]: cannot find function `foo` in this scope
-  --> $DIR/both-true-false.rs:13:5
+  --> $DIR/both-true-false.rs:14:5
    |
 LL |     foo();
    |     ^^^ not found in this scope
    |
 note: found an item that was configured out
-  --> $DIR/both-true-false.rs:6:4
+  --> $DIR/both-true-false.rs:7:4
    |
 LL | #[cfg(false)]
    |       ----- the item is gated here
@@ -13,7 +13,7 @@ LL | #[cfg(true)]
 LL | fn foo() {}
    |    ^^^
 note: found an item that was configured out
-  --> $DIR/both-true-false.rs:10:4
+  --> $DIR/both-true-false.rs:11:4
    |
 LL | #[cfg(false)]
    |       ----- the item is gated here
diff --git a/tests/ui/cfg/cfg-false-use-item.rs b/tests/ui/cfg/cfg-false-use-item.rs
index d37b48cdedb77..d907e17a0c11d 100644
--- a/tests/ui/cfg/cfg-false-use-item.rs
+++ b/tests/ui/cfg/cfg-false-use-item.rs
@@ -1,6 +1,8 @@
 //! Test that use items with cfg(false) are properly filtered out
 
 //@ run-pass
+//@ reference: cfg.predicate.literal
+//@ reference: cfg.attr.effect
 
 pub fn main() {
     // Make sure that this view item is filtered out because otherwise it would
diff --git a/tests/ui/cfg/cfg-family.rs b/tests/ui/cfg/cfg-family.rs
index a13ae7f9616bf..60594c7105f7b 100644
--- a/tests/ui/cfg/cfg-family.rs
+++ b/tests/ui/cfg/cfg-family.rs
@@ -1,6 +1,8 @@
 //@ build-pass
 //@ ignore-wasm32 no bare family
 //@ ignore-sgx
+//@ reference: cfg.target_family.unix
+//@ reference: cfg.target_family.windows
 
 #[cfg(windows)]
 pub fn main() {
diff --git a/tests/ui/cfg/cfg-panic-abort.rs b/tests/ui/cfg/cfg-panic-abort.rs
index b39888573b3a6..af4e119ef9fe3 100644
--- a/tests/ui/cfg/cfg-panic-abort.rs
+++ b/tests/ui/cfg/cfg-panic-abort.rs
@@ -2,6 +2,8 @@
 //@ compile-flags: -C panic=abort
 //@ no-prefer-dynamic
 //@ ignore-backends: gcc
+//@ reference: cfg.panic.def
+//@ reference: cfg.panic.values
 
 #[cfg(panic = "unwind")]
 pub fn bad() -> i32 { }
diff --git a/tests/ui/cfg/cfg-panic.rs b/tests/ui/cfg/cfg-panic.rs
index 4e3ed0cd9c2f8..7c911c5754e72 100644
--- a/tests/ui/cfg/cfg-panic.rs
+++ b/tests/ui/cfg/cfg-panic.rs
@@ -1,6 +1,8 @@
 //@ build-pass
 //@ compile-flags: -C panic=unwind
 //@ needs-unwind
+//@ reference: cfg.panic.def
+//@ reference: cfg.panic.values
 
 #[cfg(panic = "abort")]
 pub fn bad() -> i32 { }
diff --git a/tests/ui/cfg/cfg-path-error.rs b/tests/ui/cfg/cfg-path-error.rs
index f22e6be32f3e1..9bb10d3a6f6a1 100644
--- a/tests/ui/cfg/cfg-path-error.rs
+++ b/tests/ui/cfg/cfg-path-error.rs
@@ -1,4 +1,5 @@
 //@ check-fail
+//@ reference: cfg.option-spec
 
 #![allow(unexpected_cfgs)] // invalid cfgs
 
diff --git a/tests/ui/cfg/cfg-path-error.stderr b/tests/ui/cfg/cfg-path-error.stderr
index bb9b7039c8a34..f3b0a2d3c28e3 100644
--- a/tests/ui/cfg/cfg-path-error.stderr
+++ b/tests/ui/cfg/cfg-path-error.stderr
@@ -1,5 +1,5 @@
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/cfg-path-error.rs:5:1
+  --> $DIR/cfg-path-error.rs:6:1
    |
 LL | #[cfg(any(foo, foo::bar))]
    | ^^^^^^^^^^^^^^^--------^^^
@@ -10,7 +10,7 @@ LL | #[cfg(any(foo, foo::bar))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/cfg-path-error.rs:11:1
+  --> $DIR/cfg-path-error.rs:12:1
    |
 LL | #[cfg(any(foo::bar, foo))]
    | ^^^^^^^^^^--------^^^^^^^^
@@ -21,7 +21,7 @@ LL | #[cfg(any(foo::bar, foo))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/cfg-path-error.rs:17:1
+  --> $DIR/cfg-path-error.rs:18:1
    |
 LL | #[cfg(all(foo, foo::bar))]
    | ^^^^^^^^^^^^^^^--------^^^
@@ -32,7 +32,7 @@ LL | #[cfg(all(foo, foo::bar))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/cfg-path-error.rs:23:1
+  --> $DIR/cfg-path-error.rs:24:1
    |
 LL | #[cfg(all(foo::bar, foo))]
    | ^^^^^^^^^^--------^^^^^^^^
diff --git a/tests/ui/cfg/cfg-target-abi.rs b/tests/ui/cfg/cfg-target-abi.rs
index 306ae077325b4..b001071185171 100644
--- a/tests/ui/cfg/cfg-target-abi.rs
+++ b/tests/ui/cfg/cfg-target-abi.rs
@@ -1,4 +1,6 @@
 //@ run-pass
+//@ reference: cfg.target_abi.def
+//@ reference: cfg.target_abi.values
 
 #[cfg(target_abi = "eabihf")]
 pub fn main() {
diff --git a/tests/ui/cfg/cfg-target-family.rs b/tests/ui/cfg/cfg-target-family.rs
index 0b1c323307a9b..33dc5b1e82423 100644
--- a/tests/ui/cfg/cfg-target-family.rs
+++ b/tests/ui/cfg/cfg-target-family.rs
@@ -1,5 +1,7 @@
 //@ build-pass
 //@ ignore-sgx
+//@ reference: cfg.target_family.def
+//@ reference: cfg.target_family.values
 
 
 #[cfg(target_family = "windows")]
diff --git a/tests/ui/cfg/cfg-target-vendor.rs b/tests/ui/cfg/cfg-target-vendor.rs
index e5de95d04e54e..04dfbdb064d0d 100644
--- a/tests/ui/cfg/cfg-target-vendor.rs
+++ b/tests/ui/cfg/cfg-target-vendor.rs
@@ -1,4 +1,6 @@
 //@ run-pass
+//@ reference: cfg.target_vendor.def
+//@ reference: cfg.target_vendor.values
 #[cfg(target_vendor = "unknown")]
 pub fn main() {
 }
diff --git a/tests/ui/cfg/cfg_attr.rs b/tests/ui/cfg/cfg_attr.rs
index ba4adafd3a568..1fab79c5e1f22 100644
--- a/tests/ui/cfg/cfg_attr.rs
+++ b/tests/ui/cfg/cfg_attr.rs
@@ -1,5 +1,7 @@
 //@ run-pass
 //@ compile-flags:--cfg set1 --cfg set2
+//@ reference: cfg.cfg_attr.intro
+//@ reference: cfg.cfg_attr.syntax
 
 #![allow(dead_code, unexpected_cfgs)]
 
diff --git a/tests/ui/cfg/cfg_false_no_std-1.rs b/tests/ui/cfg/cfg_false_no_std-1.rs
index 17286e219b866..7f8a43ecdfed7 100644
--- a/tests/ui/cfg/cfg_false_no_std-1.rs
+++ b/tests/ui/cfg/cfg_false_no_std-1.rs
@@ -2,6 +2,7 @@
 
 //@ check-pass
 //@ aux-build: cfg_false_lib_no_std_after.rs
+//@ reference: cfg.attr.crate-level-attrs
 
 #![no_std]
 
diff --git a/tests/ui/cfg/cfg_false_no_std-2.rs b/tests/ui/cfg/cfg_false_no_std-2.rs
index 666c90deaf0f4..a3816f0e15511 100644
--- a/tests/ui/cfg/cfg_false_no_std-2.rs
+++ b/tests/ui/cfg/cfg_false_no_std-2.rs
@@ -7,6 +7,7 @@
 //@ compile-flags: -Cpanic=abort
 
 //@ aux-build: cfg_false_lib_no_std_before.rs
+//@ reference: cfg.attr.crate-level-attrs
 
 #![no_std]
 
diff --git a/tests/ui/cfg/cfg_false_no_std.rs b/tests/ui/cfg/cfg_false_no_std.rs
index 910f3f8b9ae1f..08032c5a91e6f 100644
--- a/tests/ui/cfg/cfg_false_no_std.rs
+++ b/tests/ui/cfg/cfg_false_no_std.rs
@@ -2,6 +2,7 @@
 
 //@ check-pass
 //@ aux-build: cfg_false_lib.rs
+//@ reference: cfg.attr.crate-level-attrs
 
 #![no_std]
 
diff --git a/tests/ui/cfg/cfg_stmt_expr.rs b/tests/ui/cfg/cfg_stmt_expr.rs
index 361b159a354fd..8681f87b5b30f 100644
--- a/tests/ui/cfg/cfg_stmt_expr.rs
+++ b/tests/ui/cfg/cfg_stmt_expr.rs
@@ -1,4 +1,5 @@
 //@ run-pass
+//@ reference: cfg.attr.allowed-positions
 #![allow(dead_code)]
 #![allow(unused_mut)]
 #![allow(unused_variables)]
diff --git a/tests/ui/cfg/cfgs-on-items.rs b/tests/ui/cfg/cfgs-on-items.rs
index 8992a8fca9c38..56f87350fea2c 100644
--- a/tests/ui/cfg/cfgs-on-items.rs
+++ b/tests/ui/cfg/cfgs-on-items.rs
@@ -1,5 +1,8 @@
 //@ run-pass
 //@ compile-flags: --cfg fooA --cfg fooB --check-cfg=cfg(fooA,fooB,fooC,bar)
+//@ reference: cfg.predicate.all
+//@ reference: cfg.predicate.any
+//@ reference: cfg.predicate.not
 
 // fooA AND !bar
 #[cfg(all(fooA, not(bar)))]
diff --git a/tests/ui/cfg/conditional-compile-arch.rs b/tests/ui/cfg/conditional-compile-arch.rs
index f16805474074d..0d57a50be530d 100644
--- a/tests/ui/cfg/conditional-compile-arch.rs
+++ b/tests/ui/cfg/conditional-compile-arch.rs
@@ -1,4 +1,6 @@
 //@ run-pass
+//@ reference: cfg.target_arch.def
+//@ reference: cfg.target_arch.values
 
 #[cfg(target_arch = "x86")]
 pub fn main() { }
diff --git a/tests/ui/cfg/conditional-compile.rs b/tests/ui/cfg/conditional-compile.rs
index 8761197891f5e..637bd0e12e8be 100644
--- a/tests/ui/cfg/conditional-compile.rs
+++ b/tests/ui/cfg/conditional-compile.rs
@@ -1,4 +1,5 @@
 //@ run-pass
+//@ reference: cfg.attr.allowed-positions
 #![allow(dead_code)]
 #![allow(non_upper_case_globals)]
 #![allow(non_camel_case_types)]
diff --git a/tests/ui/cfg/crate-attributes-using-cfg_attr.rs b/tests/ui/cfg/crate-attributes-using-cfg_attr.rs
index f99fad881f284..6dbc59ccc4edc 100644
--- a/tests/ui/cfg/crate-attributes-using-cfg_attr.rs
+++ b/tests/ui/cfg/crate-attributes-using-cfg_attr.rs
@@ -1,5 +1,6 @@
 //@ check-fail
 //@ compile-flags:--cfg foo --check-cfg=cfg(foo)
+//@ reference: cfg.cfg_attr.attr-restriction
 
 #![cfg_attr(foo, crate_type="bin")]
 //~^ERROR `crate_type` within
diff --git a/tests/ui/cfg/crate-attributes-using-cfg_attr.stderr b/tests/ui/cfg/crate-attributes-using-cfg_attr.stderr
index 1dfca2b88d0e5..3d6f007605026 100644
--- a/tests/ui/cfg/crate-attributes-using-cfg_attr.stderr
+++ b/tests/ui/cfg/crate-attributes-using-cfg_attr.stderr
@@ -1,17 +1,17 @@
 error: `crate_type` within an `#![cfg_attr]` attribute is forbidden
-  --> $DIR/crate-attributes-using-cfg_attr.rs:4:18
+  --> $DIR/crate-attributes-using-cfg_attr.rs:5:18
    |
 LL | #![cfg_attr(foo, crate_type="bin")]
    |                  ^^^^^^^^^^^^^^^^
 
 error: `crate_name` within an `#![cfg_attr]` attribute is forbidden
-  --> $DIR/crate-attributes-using-cfg_attr.rs:7:18
+  --> $DIR/crate-attributes-using-cfg_attr.rs:8:18
    |
 LL | #![cfg_attr(foo, crate_name="bar")]
    |                  ^^^^^^^^^^^^^^^^
 
 error: `crate_type` within an `#![cfg_attr]` attribute is forbidden
-  --> $DIR/crate-attributes-using-cfg_attr.rs:4:18
+  --> $DIR/crate-attributes-using-cfg_attr.rs:5:18
    |
 LL | #![cfg_attr(foo, crate_type="bin")]
    |                  ^^^^^^^^^^^^^^^^
@@ -19,7 +19,7 @@ LL | #![cfg_attr(foo, crate_type="bin")]
    = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
 
 error: `crate_name` within an `#![cfg_attr]` attribute is forbidden
-  --> $DIR/crate-attributes-using-cfg_attr.rs:7:18
+  --> $DIR/crate-attributes-using-cfg_attr.rs:8:18
    |
 LL | #![cfg_attr(foo, crate_name="bar")]
    |                  ^^^^^^^^^^^^^^^^
diff --git a/tests/ui/cfg/invalid-cli-cfg-pred.rs b/tests/ui/cfg/invalid-cli-cfg-pred.rs
index fdfb6b18d96b6..817362a40f3de 100644
--- a/tests/ui/cfg/invalid-cli-cfg-pred.rs
+++ b/tests/ui/cfg/invalid-cli-cfg-pred.rs
@@ -1,4 +1,7 @@
 //@ compile-flags: --cfg foo=1x
+//@ reference: cfg.option-spec
+//@ reference: cfg.option-name
+//@ reference: cfg.option-key-value
 
 fn main() {}
 
diff --git a/tests/ui/cfg/invalid-cli-check-cfg-pred.rs b/tests/ui/cfg/invalid-cli-check-cfg-pred.rs
index 30417a912bfcf..d5a40f4398364 100644
--- a/tests/ui/cfg/invalid-cli-check-cfg-pred.rs
+++ b/tests/ui/cfg/invalid-cli-check-cfg-pred.rs
@@ -1,4 +1,7 @@
 //@ compile-flags: --check-cfg 'foo=1x'
+//@ reference: cfg.option-spec
+//@ reference: cfg.option-name
+//@ reference: cfg.option-key-value
 
 fn main() {}
 
diff --git a/tests/ui/cfg/path-kw-as-cfg-pred.rs b/tests/ui/cfg/path-kw-as-cfg-pred.rs
index d3b419175163f..f161e60385b4b 100644
--- a/tests/ui/cfg/path-kw-as-cfg-pred.rs
+++ b/tests/ui/cfg/path-kw-as-cfg-pred.rs
@@ -1,4 +1,6 @@
 //@ edition: 2024
+//@ reference: cfg.attr.syntax
+//@ reference: cfg.cfg_attr.syntax
 
 #![allow(unexpected_cfgs)]
 
diff --git a/tests/ui/cfg/path-kw-as-cfg-pred.stderr b/tests/ui/cfg/path-kw-as-cfg-pred.stderr
index f0bc0b67b9339..b10149dd09640 100644
--- a/tests/ui/cfg/path-kw-as-cfg-pred.stderr
+++ b/tests/ui/cfg/path-kw-as-cfg-pred.stderr
@@ -1,125 +1,125 @@
 error: `crate` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:70:10
+  --> $DIR/path-kw-as-cfg-pred.rs:72:10
    |
 LL |     cfg!(r#crate);
    |          ^^^^^^^
 
 error: `super` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:72:10
+  --> $DIR/path-kw-as-cfg-pred.rs:74:10
    |
 LL |     cfg!(r#super);
    |          ^^^^^^^
 
 error: `self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:74:10
+  --> $DIR/path-kw-as-cfg-pred.rs:76:10
    |
 LL |     cfg!(r#self);
    |          ^^^^^^
 
 error: `Self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:76:10
+  --> $DIR/path-kw-as-cfg-pred.rs:78:10
    |
 LL |     cfg!(r#Self);
    |          ^^^^^^
 
 error: `_` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:85:10
+  --> $DIR/path-kw-as-cfg-pred.rs:87:10
    |
 LL |     cfg!(r#_);
    |          ^^^
 
 error: `crate` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:88:7
+  --> $DIR/path-kw-as-cfg-pred.rs:90:7
    |
 LL | #[cfg(r#crate)]
    |       ^^^^^^^
 
 error: `super` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:91:7
+  --> $DIR/path-kw-as-cfg-pred.rs:93:7
    |
 LL | #[cfg(r#super)]
    |       ^^^^^^^
 
 error: `self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:94:7
+  --> $DIR/path-kw-as-cfg-pred.rs:96:7
    |
 LL | #[cfg(r#self)]
    |       ^^^^^^
 
 error: `Self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:97:7
+  --> $DIR/path-kw-as-cfg-pred.rs:99:7
    |
 LL | #[cfg(r#Self)]
    |       ^^^^^^
 
 error: `crate` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:100:12
+  --> $DIR/path-kw-as-cfg-pred.rs:102:12
    |
 LL | #[cfg_attr(r#crate, cfg(r#crate))]
    |            ^^^^^^^
 
 error: `crate` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:100:25
+  --> $DIR/path-kw-as-cfg-pred.rs:102:25
    |
 LL | #[cfg_attr(r#crate, cfg(r#crate))]
    |                         ^^^^^^^
 
 error: `super` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:104:12
+  --> $DIR/path-kw-as-cfg-pred.rs:106:12
    |
 LL | #[cfg_attr(r#super, cfg(r#super))]
    |            ^^^^^^^
 
 error: `super` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:104:25
+  --> $DIR/path-kw-as-cfg-pred.rs:106:25
    |
 LL | #[cfg_attr(r#super, cfg(r#super))]
    |                         ^^^^^^^
 
 error: `self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:108:12
+  --> $DIR/path-kw-as-cfg-pred.rs:110:12
    |
 LL | #[cfg_attr(r#self, cfg(r#self))]
    |            ^^^^^^
 
 error: `self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:108:24
+  --> $DIR/path-kw-as-cfg-pred.rs:110:24
    |
 LL | #[cfg_attr(r#self, cfg(r#self))]
    |                        ^^^^^^
 
 error: `Self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:112:12
+  --> $DIR/path-kw-as-cfg-pred.rs:114:12
    |
 LL | #[cfg_attr(r#Self, cfg(r#Self))]
    |            ^^^^^^
 
 error: `Self` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:112:24
+  --> $DIR/path-kw-as-cfg-pred.rs:114:24
    |
 LL | #[cfg_attr(r#Self, cfg(r#Self))]
    |                        ^^^^^^
 
 error: `_` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:121:7
+  --> $DIR/path-kw-as-cfg-pred.rs:123:7
    |
 LL | #[cfg(r#_)]
    |       ^^^
 
 error: `_` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:127:12
+  --> $DIR/path-kw-as-cfg-pred.rs:129:12
    |
 LL | #[cfg_attr(r#_, cfg(r#_))]
    |            ^^^
 
 error: `_` cannot be a raw identifier
-  --> $DIR/path-kw-as-cfg-pred.rs:127:21
+  --> $DIR/path-kw-as-cfg-pred.rs:129:21
    |
 LL | #[cfg_attr(r#_, cfg(r#_))]
    |                     ^^^
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:18:1
+  --> $DIR/path-kw-as-cfg-pred.rs:20:1
    |
 LL | #[cfg(crate)]
    | ^^^^^^-----^^
@@ -130,7 +130,7 @@ LL | #[cfg(crate)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:20:1
+  --> $DIR/path-kw-as-cfg-pred.rs:22:1
    |
 LL | #[cfg(super)]
    | ^^^^^^-----^^
@@ -141,7 +141,7 @@ LL | #[cfg(super)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:22:1
+  --> $DIR/path-kw-as-cfg-pred.rs:24:1
    |
 LL | #[cfg(self)]
    | ^^^^^^----^^
@@ -152,7 +152,7 @@ LL | #[cfg(self)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:24:1
+  --> $DIR/path-kw-as-cfg-pred.rs:26:1
    |
 LL | #[cfg(Self)]
    | ^^^^^^----^^
@@ -163,7 +163,7 @@ LL | #[cfg(Self)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:26:1
+  --> $DIR/path-kw-as-cfg-pred.rs:28:1
    |
 LL | #[cfg_attr(crate, path = "foo")]
    | ^^^^^^^^^^^-----^^^^^^^^^^^^^^^^
@@ -174,7 +174,7 @@ LL | #[cfg_attr(crate, path = "foo")]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:28:1
+  --> $DIR/path-kw-as-cfg-pred.rs:30:1
    |
 LL | #[cfg_attr(super, path = "foo")]
    | ^^^^^^^^^^^-----^^^^^^^^^^^^^^^^
@@ -185,7 +185,7 @@ LL | #[cfg_attr(super, path = "foo")]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:30:1
+  --> $DIR/path-kw-as-cfg-pred.rs:32:1
    |
 LL | #[cfg_attr(self, path = "foo")]
    | ^^^^^^^^^^^----^^^^^^^^^^^^^^^^
@@ -196,7 +196,7 @@ LL | #[cfg_attr(self, path = "foo")]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:32:1
+  --> $DIR/path-kw-as-cfg-pred.rs:34:1
    |
 LL | #[cfg_attr(Self, path = "foo")]
    | ^^^^^^^^^^^----^^^^^^^^^^^^^^^^
@@ -207,7 +207,7 @@ LL | #[cfg_attr(Self, path = "foo")]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:34:18
+  --> $DIR/path-kw-as-cfg-pred.rs:36:18
    |
 LL | #[cfg_attr(true, cfg(crate))]
    |                  ^^^^-----^
@@ -218,7 +218,7 @@ LL | #[cfg_attr(true, cfg(crate))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:36:18
+  --> $DIR/path-kw-as-cfg-pred.rs:38:18
    |
 LL | #[cfg_attr(true, cfg(super))]
    |                  ^^^^-----^
@@ -229,7 +229,7 @@ LL | #[cfg_attr(true, cfg(super))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:38:18
+  --> $DIR/path-kw-as-cfg-pred.rs:40:18
    |
 LL | #[cfg_attr(true, cfg(self))]
    |                  ^^^^----^
@@ -240,7 +240,7 @@ LL | #[cfg_attr(true, cfg(self))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:40:18
+  --> $DIR/path-kw-as-cfg-pred.rs:42:18
    |
 LL | #[cfg_attr(true, cfg(Self))]
    |                  ^^^^----^
@@ -251,25 +251,25 @@ LL | #[cfg_attr(true, cfg(Self))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error: expected identifier, found keyword `struct`
-  --> $DIR/path-kw-as-cfg-pred.rs:43:7
+  --> $DIR/path-kw-as-cfg-pred.rs:45:7
    |
 LL | #[cfg(struct)]
    |       ^^^^^^ expected identifier, found keyword
 
 error: expected identifier, found reserved keyword `priv`
-  --> $DIR/path-kw-as-cfg-pred.rs:45:7
+  --> $DIR/path-kw-as-cfg-pred.rs:47:7
    |
 LL | #[cfg(priv)]
    |       ^^^^ expected identifier, found reserved keyword
 
 error: expected identifier, found reserved identifier `_`
-  --> $DIR/path-kw-as-cfg-pred.rs:47:7
+  --> $DIR/path-kw-as-cfg-pred.rs:49:7
    |
 LL | #[cfg(_)]
    |       ^ expected identifier, found reserved identifier
 
 error: expected identifier, found keyword `struct`
-  --> $DIR/path-kw-as-cfg-pred.rs:49:12
+  --> $DIR/path-kw-as-cfg-pred.rs:51:12
    |
 LL | #[cfg_attr(struct, path = "foo")]
    |            ^^^^^^ expected identifier, found keyword
@@ -280,7 +280,7 @@ LL | #[cfg_attr(r#struct, path = "foo")]
    |            ++
 
 error: expected identifier, found reserved keyword `priv`
-  --> $DIR/path-kw-as-cfg-pred.rs:51:12
+  --> $DIR/path-kw-as-cfg-pred.rs:53:12
    |
 LL | #[cfg_attr(priv, path = "foo")]
    |            ^^^^ expected identifier, found reserved keyword
@@ -291,31 +291,31 @@ LL | #[cfg_attr(r#priv, path = "foo")]
    |            ++
 
 error: expected identifier, found reserved identifier `_`
-  --> $DIR/path-kw-as-cfg-pred.rs:53:12
+  --> $DIR/path-kw-as-cfg-pred.rs:55:12
    |
 LL | #[cfg_attr(_, path = "foo")]
    |            ^ expected identifier, found reserved identifier
 
 error: expected identifier, found keyword `struct`
-  --> $DIR/path-kw-as-cfg-pred.rs:55:22
+  --> $DIR/path-kw-as-cfg-pred.rs:57:22
    |
 LL | #[cfg_attr(true, cfg(struct))]
    |                      ^^^^^^ expected identifier, found keyword
 
 error: expected identifier, found reserved keyword `priv`
-  --> $DIR/path-kw-as-cfg-pred.rs:57:22
+  --> $DIR/path-kw-as-cfg-pred.rs:59:22
    |
 LL | #[cfg_attr(true, cfg(priv))]
    |                      ^^^^ expected identifier, found reserved keyword
 
 error: expected identifier, found reserved identifier `_`
-  --> $DIR/path-kw-as-cfg-pred.rs:59:22
+  --> $DIR/path-kw-as-cfg-pred.rs:61:22
    |
 LL | #[cfg_attr(true, cfg(_))]
    |                      ^ expected identifier, found reserved identifier
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:88:1
+  --> $DIR/path-kw-as-cfg-pred.rs:90:1
    |
 LL | #[cfg(r#crate)]
    | ^^^^^^-------^^
@@ -326,7 +326,7 @@ LL | #[cfg(r#crate)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:91:1
+  --> $DIR/path-kw-as-cfg-pred.rs:93:1
    |
 LL | #[cfg(r#super)]
    | ^^^^^^-------^^
@@ -337,7 +337,7 @@ LL | #[cfg(r#super)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:94:1
+  --> $DIR/path-kw-as-cfg-pred.rs:96:1
    |
 LL | #[cfg(r#self)]
    | ^^^^^^------^^
@@ -348,7 +348,7 @@ LL | #[cfg(r#self)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:97:1
+  --> $DIR/path-kw-as-cfg-pred.rs:99:1
    |
 LL | #[cfg(r#Self)]
    | ^^^^^^------^^
@@ -359,7 +359,7 @@ LL | #[cfg(r#Self)]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:100:1
+  --> $DIR/path-kw-as-cfg-pred.rs:102:1
    |
 LL | #[cfg_attr(r#crate, cfg(r#crate))]
    | ^^^^^^^^^^^-------^^^^^^^^^^^^^^^^
@@ -370,7 +370,7 @@ LL | #[cfg_attr(r#crate, cfg(r#crate))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:104:1
+  --> $DIR/path-kw-as-cfg-pred.rs:106:1
    |
 LL | #[cfg_attr(r#super, cfg(r#super))]
    | ^^^^^^^^^^^-------^^^^^^^^^^^^^^^^
@@ -381,7 +381,7 @@ LL | #[cfg_attr(r#super, cfg(r#super))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:108:1
+  --> $DIR/path-kw-as-cfg-pred.rs:110:1
    |
 LL | #[cfg_attr(r#self, cfg(r#self))]
    | ^^^^^^^^^^^------^^^^^^^^^^^^^^^
@@ -392,7 +392,7 @@ LL | #[cfg_attr(r#self, cfg(r#self))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:112:1
+  --> $DIR/path-kw-as-cfg-pred.rs:114:1
    |
 LL | #[cfg_attr(r#Self, cfg(r#Self))]
    | ^^^^^^^^^^^------^^^^^^^^^^^^^^^
@@ -403,7 +403,7 @@ LL | #[cfg_attr(r#Self, cfg(r#Self))]
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg_attr-attribute>
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:7:9
+  --> $DIR/path-kw-as-cfg-pred.rs:9:9
    |
 LL |         #[cfg($crate)]
    |         ^^^^^^------^^
@@ -418,7 +418,7 @@ LL |     foo!();
    = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0539]: malformed `cfg_attr` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:9:9
+  --> $DIR/path-kw-as-cfg-pred.rs:11:9
    |
 LL |         #[cfg_attr($crate, path = "foo")]
    |         ^^^^^^^^^^^------^^^^^^^^^^^^^^^^
@@ -433,7 +433,7 @@ LL |     foo!();
    = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0539]: malformed `cfg` attribute input
-  --> $DIR/path-kw-as-cfg-pred.rs:11:26
+  --> $DIR/path-kw-as-cfg-pred.rs:13:26
    |
 LL |         #[cfg_attr(true, cfg($crate))]
    |                          ^^^^------^
@@ -448,7 +448,7 @@ LL |     foo!();
    = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:14:9
+  --> $DIR/path-kw-as-cfg-pred.rs:16:9
    |
 LL |         cfg!($crate);
    |         ^^^^^------^
@@ -463,7 +463,7 @@ LL |     foo!();
    = note: this error originates in the macro `cfg` which comes from the expansion of the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:65:5
+  --> $DIR/path-kw-as-cfg-pred.rs:67:5
    |
 LL |     cfg!(crate);
    |     ^^^^^-----^
@@ -474,7 +474,7 @@ LL |     cfg!(crate);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:66:5
+  --> $DIR/path-kw-as-cfg-pred.rs:68:5
    |
 LL |     cfg!(super);
    |     ^^^^^-----^
@@ -485,7 +485,7 @@ LL |     cfg!(super);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:67:5
+  --> $DIR/path-kw-as-cfg-pred.rs:69:5
    |
 LL |     cfg!(self);
    |     ^^^^^----^
@@ -496,7 +496,7 @@ LL |     cfg!(self);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:68:5
+  --> $DIR/path-kw-as-cfg-pred.rs:70:5
    |
 LL |     cfg!(Self);
    |     ^^^^^----^
@@ -507,7 +507,7 @@ LL |     cfg!(Self);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:70:5
+  --> $DIR/path-kw-as-cfg-pred.rs:72:5
    |
 LL |     cfg!(r#crate);
    |     ^^^^^-------^
@@ -518,7 +518,7 @@ LL |     cfg!(r#crate);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:72:5
+  --> $DIR/path-kw-as-cfg-pred.rs:74:5
    |
 LL |     cfg!(r#super);
    |     ^^^^^-------^
@@ -529,7 +529,7 @@ LL |     cfg!(r#super);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:74:5
+  --> $DIR/path-kw-as-cfg-pred.rs:76:5
    |
 LL |     cfg!(r#self);
    |     ^^^^^------^
@@ -540,7 +540,7 @@ LL |     cfg!(r#self);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error[E0539]: malformed `cfg` macro input
-  --> $DIR/path-kw-as-cfg-pred.rs:76:5
+  --> $DIR/path-kw-as-cfg-pred.rs:78:5
    |
 LL |     cfg!(r#Self);
    |     ^^^^^------^
@@ -551,19 +551,19 @@ LL |     cfg!(r#Self);
    = note: for more information, visit <https://doc.rust-lang.org/reference/conditional-compilation.html#the-cfg-attribute>
 
 error: expected identifier, found keyword `struct`
-  --> $DIR/path-kw-as-cfg-pred.rs:79:10
+  --> $DIR/path-kw-as-cfg-pred.rs:81:10
    |
 LL |     cfg!(struct);
    |          ^^^^^^ expected identifier, found keyword
 
 error: expected identifier, found reserved keyword `priv`
-  --> $DIR/path-kw-as-cfg-pred.rs:80:10
+  --> $DIR/path-kw-as-cfg-pred.rs:82:10
    |
 LL |     cfg!(priv);
    |          ^^^^ expected identifier, found reserved keyword
 
 error: expected identifier, found reserved identifier `_`
-  --> $DIR/path-kw-as-cfg-pred.rs:81:10
+  --> $DIR/path-kw-as-cfg-pred.rs:83:10
    |
 LL |     cfg!(_);
    |          ^ expected identifier, found reserved identifier
diff --git a/tests/ui/cfg/true-false.rs b/tests/ui/cfg/true-false.rs
index 0bd1cf427fafd..b8e0e8968c83e 100644
--- a/tests/ui/cfg/true-false.rs
+++ b/tests/ui/cfg/true-false.rs
@@ -1,4 +1,5 @@
 //@ run-pass
+//@ reference: cfg.predicate.literal
 
 #![feature(link_cfg)]