1 // RUN: %clang_cc1 -triple aarch64-linux-gnu -target-feature '' -target-feature m %s 2>&1 \ 2 // RUN: | FileCheck -check-prefix=NO_PREFIX %s 3 4 // NO_PREFIX: warning: feature flag 'm' must start with either '+' to enable the feature or '-' to disable it; flag ignored [-Winvalid-command-line-argument] 5 6 // RUN: %clang_cc1 -triple aarch64-linux-gnu -target-feature '' -target-feature ' n' %s 2>&1 \ 7 // RUN: | FileCheck -check-prefix=NULL_PREFIX %s 8 9 // NULL_PREFIX: warning: feature flag ' n' must start with either '+' to enable the feature or '-' to disable it; flag ignored [-Winvalid-command-line-argument] 10