diff --git a/crates/rustc_codegen_spirv/src/builder/libm_intrinsics.rs b/crates/rustc_codegen_spirv/src/builder/libm_intrinsics.rs
index 3604ce5e5d..390ec524ee 100644
--- a/crates/rustc_codegen_spirv/src/builder/libm_intrinsics.rs
+++ b/crates/rustc_codegen_spirv/src/builder/libm_intrinsics.rs
@@ -7,8 +7,6 @@ use rustc_codegen_ssa::traits::BuilderMethods;
 pub enum LibmCustomIntrinsic {
     CopySign,
     Cbrt,
-    Erf,
-    Erfc,
     Exp10,
     Expm1,
     Fdim,
@@ -70,10 +68,6 @@ pub const TABLE: &[(&str, LibmIntrinsic)] = &[
     ("cosf", LibmIntrinsic::GLOp(GLOp::Cos)),
     ("cosh", LibmIntrinsic::GLOp(GLOp::Cosh)),
     ("coshf", LibmIntrinsic::GLOp(GLOp::Cosh)),
-    ("erf", LibmIntrinsic::Custom(LibmCustomIntrinsic::Erf)),
-    ("erff", LibmIntrinsic::Custom(LibmCustomIntrinsic::Erf)),
-    ("erfc", LibmIntrinsic::Custom(LibmCustomIntrinsic::Erfc)),
-    ("erfcf", LibmIntrinsic::Custom(LibmCustomIntrinsic::Erfc)),
     ("exp10", LibmIntrinsic::Custom(LibmCustomIntrinsic::Exp10)),
     ("exp10f", LibmIntrinsic::Custom(LibmCustomIntrinsic::Exp10)),
     ("exp2", LibmIntrinsic::GLOp(GLOp::Exp2)),
@@ -258,16 +252,6 @@ impl Builder<'_, '_> {
                 let one = self.constant_float(exp.ty, 1.0);
                 self.sub(exp, one)
             }
-            LibmIntrinsic::Custom(LibmCustomIntrinsic::Erf) => {
-                let undef = self.undef(result_type);
-                self.zombie(undef.def(self), "Erf not supported yet");
-                undef
-            }
-            LibmIntrinsic::Custom(LibmCustomIntrinsic::Erfc) => {
-                let undef = self.undef(result_type);
-                self.zombie(undef.def(self), "Erfc not supported yet");
-                undef
-            }
             LibmIntrinsic::Custom(LibmCustomIntrinsic::Fdim) => {
                 let undef = self.undef(result_type);
                 self.zombie(undef.def(self), "Fdim not supported yet");
diff --git a/crates/rustc_codegen_spirv/src/codegen_cx/declare.rs b/crates/rustc_codegen_spirv/src/codegen_cx/declare.rs
index 6d9fe747ec..cb915fc7f0 100644
--- a/crates/rustc_codegen_spirv/src/codegen_cx/declare.rs
+++ b/crates/rustc_codegen_spirv/src/codegen_cx/declare.rs
@@ -136,15 +136,8 @@ impl<'tcx> CodegenCx<'tcx> {
             let item_name = self.tcx.item_name(instance_def_id);
             let intrinsic = self.sym.libm_intrinsics.get(&item_name);
             if self.tcx.visibility(instance.def_id()) == ty::Visibility::Public {
-                match intrinsic {
-                    Some(&intrinsic) => {
-                        self.libm_intrinsics.borrow_mut().insert(fn_id, intrinsic);
-                    }
-                    None => {
-                        self.tcx.sess.err(format!(
-                            "missing libm intrinsic {symbol_name}, which is {instance}"
-                        ));
-                    }
+                if let Some(&intrinsic) = intrinsic {
+                    self.libm_intrinsics.borrow_mut().insert(fn_id, intrinsic);
                 }
             }
         }