| // RUN: %clang --target=aarch64-none-elf -march=armv8.9-a+rcpc3 -print-multi-flags-experimental -multi-lib-config=%S/Inputs/multilib/empty.yaml -c %s 2>&1 | FileCheck %s |
| // The purpose of this regression test is to make sure that when |
| // compile options are converted into multilib selection flags, no |
| // empty strings are accidentally included in the |
| // -march=armv8.9-a+foo+bar+baz string, leading to two consecutive + |
| // signs. With +rcpc3 in the input, this used to generate an empty |
| // string for the anonymous architecture extension corresponding to |
| // the SubtargetFeature 'rcpc-immo', which is a dependency of rcpc3 |
| // but has no separate extension name for use on command lines. So we |
| // check that the two named rcpc options appear, and that no ++ |
| // appears before or after. |
| // CHECK: -march=armv8.9-a |
| // CHECK-SAME: +rcpc+rcpc3+ |