FileCheck: fix a bug with multiple --check-prefix options.

Summary:
This fixes a subtle bug in new FileCheck feature added
in r194343. When we search for the first satisfying check-prefix,
we should

FileCheck: fix a bug with multiple --check-prefix options.

Summary:
This fixes a subtle bug in new FileCheck feature added
in r194343. When we search for the first satisfying check-prefix,
we should actually return the first encounter of some check-prefix as a
substring, even if it's not a part of valid check-line. Otherwise
"FileCheck --check-prefix=FOO --check-prefix=BAR" with check file:

FOO not a vaild check-line
FOO: foo
BAR: bar

incorrectly accepted file:

fog
bar

as it skipped the first two encounters of FOO, matching only BAR: line.

Reviewers: arsenm, dsanders

Reviewed By: dsanders

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2166

llvm-svn: 194565

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Allow multiple check prefixes in FileCheck.

This is useful if you want to run multiple variations
of a single test, and the majority of check lines
should be the same.

llvm-svn: 194343

Add missing #include's to cctype when using isdigit/alpha/etc.

llvm-svn: 192519

Really fix CHECK-LABEL and CHECK-DAG interaction. This actually just restores the initial implementation that was in r186162 but got lost in some subsequent refactoring. More explicit variable names

Really fix CHECK-LABEL and CHECK-DAG interaction. This actually just restores the initial implementation that was in r186162 but got lost in some subsequent refactoring. More explicit variable names and comments are present now to hopefully prevent repeat regression, as well as another test.

llvm-svn: 192477

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Fix handling of CHECK-DAG inside of CHECK-LABEL.

llvm-svn: 192463

Missed using check type enum in one place

llvm-svn: 190897

Use function's argument instead of the global flag.

For now it happens the argument is always the same.

llvm-svn: 190896

FileCheck refactor: use enum instead of bunch of bools

llvm-svn: 190893

FileCheck: Fix stray quote in CHECK-LABEL error message.

llvm-svn: 188564

[FileCheck] Fix a bug that cause FileCheck to misidentify check-prefix

FileCheck should check to make sure the prefix was found, and not a word
containing it (e.g -check-prefix=BASEREL shouldn't mat

[FileCheck] Fix a bug that cause FileCheck to misidentify check-prefix

FileCheck should check to make sure the prefix was found, and not a word
containing it (e.g -check-prefix=BASEREL shouldn't match NOBASEREL).

Patch by Ron Ofir.

llvm-svn: 188221

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Fix handling of CHECK-DAG combined with CHECK-NOT

Patch by Daniel Sanders.

llvm-svn: 187651

Add new directive called CHECK-LABEL to FileCheck.

CHECK-LABEL is meant to be used in place on CHECK on lines containing identifiers or other unique labels (they need not actually be labels in the s

Add new directive called CHECK-LABEL to FileCheck.

CHECK-LABEL is meant to be used in place on CHECK on lines containing identifiers or other unique labels (they need not actually be labels in the source or output language, though.) This is used to break up the input stream into separate blocks delineated by CHECK-LABEL lines, each of which is checked independently. This greatly improves the accuracy of errors and fix-it hints in many cases, and allows for FileCheck to recover from errors in one block by continuing to subsequent blocks.

Some tests will be converted to use this new directive in forthcoming patches.

llvm-svn: 186162

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keep only the StringRef version of getFileOrSTDIN.

llvm-svn: 184826

Add 'CHECK-DAG' support

Refer to 'FileCheck.rst'f for details of 'CHECK-DAG'.

llvm-svn: 181827

Refactor string checking. No functionality change.

llvm-svn: 181824

Remove SMLoc paired with CHECK-NOT patterns. Not functionality change.

Pattern has source location by itself. After adding a trivial method to
retrieve it, it's unnecessary to pair a source location

Remove SMLoc paired with CHECK-NOT patterns. Not functionality change.

Pattern has source location by itself. After adding a trivial method to
retrieve it, it's unnecessary to pair a source location for CHECK-NOT patterns.
One thing revised after this is the diagnostic info is more accurate by
pointing to the start of the CHECK-NOT pattern instead of the end of the
CHECK-NOT pattern. E.g. diagnostic message previously looks like

<stdin>:1:1: error: CHECK-NOT: string occurred!
test
^
test.txt:1:16: note: CHECK-NOT: pattern specified here
CHECK-NOT: test
^

is changed to

<stdin>:1:1: error: CHECK-NOT: string occurred!
test
^
test.txt:1:12: note: CHECK-NOT: pattern specified here
CHECK-NOT: test
^

llvm-svn: 180578

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Remove tailing whitespaces

llvm-svn: 180564

Plug a memory leak in FileCheck when the input file is empty.

llvm-svn: 177822

Add static cast to unsigned char whenever a character classification function is called with a signed char argument, in order to avoid assertions in Windows Debug configuration.

llvm-svn: 175006

Canonicalize line endings to Linux style also when the --strict-whitespace flag is in use. This flag is supposed to affect horizontal whitespaces only.

llvm-svn: 174541

Sort the #include lines for utils/...

I've tried to find main moudle headers where possible, but the TableGen
stuff may warrant someone else looking at it.

llvm-svn: 169251

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

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

The problem was that to find the end of the regex var definition, it was
simplistically looking for the

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

; 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.

llvm-svn: 169109

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Support referencing variables defined on the same line.

See http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20121126/157198.html
and related discussions.

llvm-svn: 169101

Clean up whitespace and add comments

llvm-svn: 169002

Make FileCheck return 2 in case of an error as documented,
instead of 1 or true (?!)

llvm-svn: 169001