Fix rustc test suite

Author: bjorn3

scripts/test_rustc_tests.sh

@@ -34,6 +34,7 @@ rm tests/ui/parser/unclosed-delimiter-in-dep.rs # submodule contains //~ERROR
 
 # vendor intrinsics
 rm tests/ui/asm/x86_64/evex512-implicit-feature.rs # unimplemented AVX512 x86 vendor intrinsic
+rm tests/ui/simd/dont-invalid-bitcast-x86_64.rs # unimplemented llvm.x86.sse41.round.ps
 
 # exotic linkages
 rm tests/incremental/hashes/function_interfaces.rs