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Teach FileCheck to handle trailing CHECK-NOT patterns.

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A CHECK-NOT pattern without a following CHECK pattern simply checks that the
pattern doesn't match before the end of the input file.

You can even have only CHECK-NOT patterns to check that strings appear nowhere
in the input file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116592 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2010-10-15 17:47:12 +00:00
parent 6bdc8ae291
commit 824c10ece2
2 changed files with 23 additions and 10 deletions
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2
docs/CommandGuide/FileCheck.pod
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@ -165,7 +165,7 @@ directive in a file.
=head2 The "CHECK-NOT:" directive
The CHECK-NOT: directive is used to verify that a string doesn't occur
between two matches (or the first match and the beginning of the file). For
between two matches (or before the first match, or after the last match). For
example, to verify that a load is removed by a transformation, a test like this
can be used: