diff --git a/tests/ui/eii/codegen_cross_crate.rs b/tests/ui/eii/codegen_cross_crate.rs
index b5b2d940b730..ccce32e0eb3e 100644
--- a/tests/ui/eii/codegen_cross_crate.rs
+++ b/tests/ui/eii/codegen_cross_crate.rs
@@ -2,6 +2,7 @@
 //@ check-run-results
 //@ aux-build: codegen2.rs
 //@ compile-flags: -O
+//@ ignore-backends: gcc
 // Tests whether calling EIIs works with the declaration in another crate.
 #![feature(eii)]
 
diff --git a/tests/ui/eii/codegen_single_crate.rs b/tests/ui/eii/codegen_single_crate.rs
index c2d986d12c1a..4172f59b0df6 100644
--- a/tests/ui/eii/codegen_single_crate.rs
+++ b/tests/ui/eii/codegen_single_crate.rs
@@ -1,5 +1,6 @@
 //@ run-pass
 //@ check-run-results
+//@ ignore-backends: gcc
 // Tests whether calling EIIs works with the declaration in the same crate.
 #![feature(eii)]
 
diff --git a/tests/ui/eii/default/call_default.rs b/tests/ui/eii/default/call_default.rs
index 520863f1d3e9..3557e1cdac12 100644
--- a/tests/ui/eii/default/call_default.rs
+++ b/tests/ui/eii/default/call_default.rs
@@ -2,6 +2,7 @@
 //@ aux-build: decl_with_default.rs
 //@ run-pass
 //@ check-run-results
+//@ ignore-backends: gcc
 // Tests EIIs with default implementations.
 // When there's no explicit declaration, the default should be called from the declaring crate.
 #![feature(eii)]
diff --git a/tests/ui/eii/default/call_impl.rs b/tests/ui/eii/default/call_impl.rs
index b81e604238ec..1bb37f30f027 100644
--- a/tests/ui/eii/default/call_impl.rs
+++ b/tests/ui/eii/default/call_impl.rs
@@ -3,6 +3,7 @@
 //@ aux-build: impl1.rs
 //@ run-pass
 //@ check-run-results
+//@ ignore-backends: gcc
 // Tests EIIs with default implementations.
 // When an explicit implementation is given in one dependency, and the declaration is in another,
 // the explicit implementation is preferred.
diff --git a/tests/ui/eii/default/local_crate.rs b/tests/ui/eii/default/local_crate.rs
index 9ae471d90cbc..74e90fdc273d 100644
--- a/tests/ui/eii/default/local_crate.rs
+++ b/tests/ui/eii/default/local_crate.rs
@@ -1,5 +1,6 @@
 //@ run-pass
 //@ check-run-results
+//@ ignore-backends: gcc
 // Tests EIIs with default implementations.
 // In the same crate, when there's no explicit declaration, the default should be called.
 #![feature(eii)]
diff --git a/tests/ui/eii/default/local_crate_explicit.rs b/tests/ui/eii/default/local_crate_explicit.rs
index 844d1d2911af..d671d8e70c97 100644
--- a/tests/ui/eii/default/local_crate_explicit.rs
+++ b/tests/ui/eii/default/local_crate_explicit.rs
@@ -1,5 +1,6 @@
 //@ run-pass
 //@ check-run-results
+//@ ignore-backends: gcc
 // Tests EIIs with default implementations.
 // In the same crate, the explicit implementation should get priority.
 #![feature(eii)]
diff --git a/tests/ui/eii/duplicate/duplicate1.rs b/tests/ui/eii/duplicate/duplicate1.rs
index 921270fe3d48..5573f47472a7 100644
--- a/tests/ui/eii/duplicate/duplicate1.rs
+++ b/tests/ui/eii/duplicate/duplicate1.rs
@@ -1,6 +1,7 @@
 //@ no-prefer-dynamic
 //@ aux-build: impl1.rs
 //@ aux-build: impl2.rs
+//@ ignore-backends: gcc
 // tests that EIIs error properly, even if the conflicting implementations live in another crate.
 #![feature(eii)]
 
diff --git a/tests/ui/eii/duplicate/duplicate2.rs b/tests/ui/eii/duplicate/duplicate2.rs
index 8355b8f7bc70..d2bb1856565a 100644
--- a/tests/ui/eii/duplicate/duplicate2.rs
+++ b/tests/ui/eii/duplicate/duplicate2.rs
@@ -2,6 +2,7 @@
 //@ aux-build: impl1.rs
 //@ aux-build: impl2.rs
 //@ aux-build: impl3.rs
+//@ ignore-backends: gcc
 // Tests the error message when there are multiple implementations of an EII in many crates.
 #![feature(eii)]
 
diff --git a/tests/ui/eii/duplicate/duplicate3.rs b/tests/ui/eii/duplicate/duplicate3.rs
index b967fb8b4903..2cd51268a6fb 100644
--- a/tests/ui/eii/duplicate/duplicate3.rs
+++ b/tests/ui/eii/duplicate/duplicate3.rs
@@ -3,6 +3,7 @@
 //@ aux-build: impl2.rs
 //@ aux-build: impl3.rs
 //@ aux-build: impl4.rs
+//@ ignore-backends: gcc
 // Tests the error message when there are multiple implementations of an EII in many crates.
 #![feature(eii)]
 
diff --git a/tests/ui/eii/privacy1.rs b/tests/ui/eii/privacy1.rs
index 7dd87a5b7ce4..64b35f7a070d 100644
--- a/tests/ui/eii/privacy1.rs
+++ b/tests/ui/eii/privacy1.rs
@@ -1,6 +1,7 @@
 //@ run-pass
 //@ check-run-results
 //@ aux-build: codegen1.rs
+//@ ignore-backends: gcc
 // Tests whether re-exports work.
 #![feature(eii)]