1 // 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 2 3 // The purpose of this regression test is to make sure that when 4 // compile options are converted into multilib selection flags, no 5 // empty strings are accidentally included in the 6 // -march=armv8.9-a+foo+bar+baz string, leading to two consecutive + 7 // signs. With +rcpc3 in the input, this used to generate an empty 8 // string for the anonymous architecture extension corresponding to 9 // the SubtargetFeature 'rcpc-immo', which is a dependency of rcpc3 10 // but has no separate extension name for use on command lines. So we 11 // check that the two named rcpc options appear, and that no ++ 12 // appears before or after. 13 14 // CHECK: -march=armv8.9-a 15 // CHECK-NOT: ++ 16 // CHECK-SAME: +rcpc+rcpc3+ 17 // CHECK-NOT: ++ 18