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Fix a bug in FileCheck that wouldn't let define variables as follows:

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; CHECK: [[VAR:[a-z]]]

The problem was that to find the end of the regex var definition, it was
simplistically looking for the next ]] and finding the incorrect one. A
better approach is to count nesting of brackets (taking escaping into
account). This way the brackets that are part of the regex can be discovered
and skipped properly, and the ]] ending is detected in the right place.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169109 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Bendersky
2012-12-02 16:02:41 +00:00
parent e469364244
commit 4db6511779
3 changed files with 56 additions and 5 deletions
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7
test/FileCheck/regex-brackets.txt Normal file
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@@ -0,0 +1,7 @@
// RUN: FileCheck -input-file %s %s
op r1
op r2, [x r1]
; CHECK: op [[REG:r[0-9]]]
; CHECK: op [[REG2:r[0-9]]], [x [[REG]]]