James Henderson de9948f983 [FileCheck] Add CHECK-EMPTY directive for checking for blank lines ... Prior to this change, there was no clean way of getting FileCheck to check that a line is completely empty. The expected way of using "CHECK: {{^$}}" does not work because the '^' matches the end of the previous match (this behaviour may be desirable in certain instances). For the same reason, "CHECK-NEXT: {{^$}}" will fail when the previous match was at the end of the line, as the pattern will match there. Using the recommended [[:space:]] to match an explicit new line could also match a space, and thus is not always desired. Literal '\n' matches also do not work. A workaround was suggested in the review, but it is a little clunky. This change adds a new directive that behaves the same as CHECK-NEXT, except that it only matches against empty lines (nothing, not even whitespace, is allowed). As with CHECK-NEXT, it will fail if more than one newline occurs before the next blank line. Example usage: ; test.txt foo bar ; CHECK: foo ; CHECK-EMPTY: ; CHECK-NEXT: bar Differential Revision: https://reviews.llvm.org/D28896 Reviewed by: probinson llvm-svn: 335613		2018-06-26 15:15:45 +00:00
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CMakeLists.txt	[CMake] Use PRIVATE in target_link_libraries for executables	2017-12-05 21:49:56 +00:00
FileCheck.cpp	[FileCheck] Add CHECK-EMPTY directive for checking for blank lines	2018-06-26 15:15:45 +00:00