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* Fix FileCheck crash when fuzzy scanning starting at the end of the file.Daniel Dunbar2009-11-291-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90065 91177308-0d34-0410-b5e6-96231b3b80d8
* FileCheck, PR5239: Try to find the intended match on failures, but looking for aDaniel Dunbar2009-11-221-4/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | good nearby fuzzy match. Frequently the input is nearly correct, and just showing the user the a nearby sensible match is enough to diagnose the problem. - The "fuzzyness" is pretty simple and arbitrary, but worked on my three test cases. If you encounter problems, or places you think FileCheck should have guessed but didn't, please add test cases to PR5239. For example, previously FileCheck would report this: -- t.cpp:21:55: error: expected string not found in input // CHECK: define void @_Z2f25f2_s1([[i64_i64_ty]] %a0) ^ <stdin>:19:30: note: scanning from here define void @_Z2f15f1_s1(%1) nounwind { ^ <stdin>:19:30: note: with variable "i64_i64_ty" equal to "%0" -- and now it also reports this: -- <stdin>:27:1: note: possible intended match here define void @_Z2f25f2_s1(%0) nounwind { ^ -- which makes it clear that the CHECK just has an extra ' %a0' in it, without having to check the input. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89631 91177308-0d34-0410-b5e6-96231b3b80d8
* FileCheck: When a string using variable references fails to match, printDaniel Dunbar2009-11-221-4/+50
| | | | | | | additional information about the current definitions of the variables used in the string. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89628 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow '_' in FileCheck variable names, it is nice to have at least oneDaniel Dunbar2009-11-221-2/+3
| | | | | | | separate character. - Chris, OK? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89626 91177308-0d34-0410-b5e6-96231b3b80d8
* implement and document support for filecheck variables. ThisChris Lattner2009-09-271-43/+172
| | | | | | | | | | | allows matching and remembering a string and then matching and verifying that the string occurs later in the file. Change X86/xor.ll to use this in some cases where the test was checking for an arbitrary register allocation decision. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82891 91177308-0d34-0410-b5e6-96231b3b80d8
* remove support for "NoSub" from regex. It seems like a minor optimizationChris Lattner2009-09-261-1/+1
| | | | | | | and makes the API more annoying. Add a Regex::getNumMatches() method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82877 91177308-0d34-0410-b5e6-96231b3b80d8
* reject attempts to use ()'s in patterns, these are reserved for filecheck.Chris Lattner2009-09-251-3/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82780 91177308-0d34-0410-b5e6-96231b3b80d8
* reimplement the regex matching strategy by building a singleChris Lattner2009-09-251-88/+51
| | | | | | | | | | | | | | | | | | | regex and matching it instead of trying to match chunks at a time. Matching chunks at a time broke with check lines like CHECK: foo {{.*}}bar because the .* would eat the entire rest of the line and bar would never match. Now we just escape the fixed strings for the user, so that something like: CHECK: a() {{.*}}??? is matched as: CHECK: {{a\(\) .*\?\?\?}} transparently "under the covers". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82779 91177308-0d34-0410-b5e6-96231b3b80d8
* special case Patterns that are a single fixed string. This is a microscopicChris Lattner2009-09-251-0/+16
| | | | | | | perf win and is needed for future changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82777 91177308-0d34-0410-b5e6-96231b3b80d8
* filecheck should not match a \n with a .Chris Lattner2009-09-251-3/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82758 91177308-0d34-0410-b5e6-96231b3b80d8
* turn a std::pair into a real class.Chris Lattner2009-09-251-23/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82754 91177308-0d34-0410-b5e6-96231b3b80d8
* add and document regex support for FileCheck. You can now do stuff like:Chris Lattner2009-09-241-11/+116
| | | | | | | | | | ; CHECK: movl {{%e[a-z][xi]}}, %eax or whatever. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82717 91177308-0d34-0410-b5e6-96231b3b80d8
* Use CanonicalizeInputFile to canonicalize the entire buffer containing theChris Lattner2009-09-241-57/+40
| | | | | | | | CHECK strings, instead of canonicalizing the patterns directly. This allows Pattern to just contain a StringRef instead of std::string. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82713 91177308-0d34-0410-b5e6-96231b3b80d8
* change 'not' matching to use Pattern, move pattern parsing logic intoChris Lattner2009-09-241-32/+51
| | | | | | | the Pattern class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82712 91177308-0d34-0410-b5e6-96231b3b80d8
* refactor out the match string into its own Pattern class.Chris Lattner2009-09-241-33/+50
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82711 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a FileCheck bug where:Chris Lattner2009-09-211-3/+3
| | | | | | | | | | | ; CHECK: foo ; CHECK-NOT: foo ; CHECK: bar would always fail. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82424 91177308-0d34-0410-b5e6-96231b3b80d8
* rewrite CountNumNewlinesBetween to be in terms of StringRef.Chris Lattner2009-09-201-13/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82410 91177308-0d34-0410-b5e6-96231b3b80d8
* implement and document support for CHECK-NOTChris Lattner2009-09-201-8/+50
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82408 91177308-0d34-0410-b5e6-96231b3b80d8
* rewrite FileCheck in terms of StringRef instead of manual pointer pairs.Chris Lattner2009-09-201-68/+37
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82407 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't install FileCheck or FileUpdateDouglas Gregor2009-08-231-0/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79820 91177308-0d34-0410-b5e6-96231b3b80d8
* when emitting errors about CHECK-NEXT directives, show the line that the Chris Lattner2009-08-161-2/+6
| | | | | | | CHECK-NEXT is on. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79164 91177308-0d34-0410-b5e6-96231b3b80d8
* implement support for CHECK-NEXT: in filecheck.Chris Lattner2009-08-151-26/+105
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79123 91177308-0d34-0410-b5e6-96231b3b80d8
* simplify some code.Chris Lattner2009-08-151-8/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79121 91177308-0d34-0410-b5e6-96231b3b80d8
* rewrite FindStringInBuffer to use an explicit loop instead ofChris Lattner2009-08-151-19/+27
| | | | | | | | | trying to wrap strstr which is just too inconvenient. Make it use a StringRef to avoid ".c_str()" calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79120 91177308-0d34-0410-b5e6-96231b3b80d8
* Instead of using an std::pair, use a custom struct.Chris Lattner2009-08-151-12/+21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79119 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an ENABLE_EXPENSIVE_CHECKS error.Daniel Dunbar2009-08-021-2/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77845 91177308-0d34-0410-b5e6-96231b3b80d8
* Tweak comment.Daniel Dunbar2009-07-111-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75391 91177308-0d34-0410-b5e6-96231b3b80d8
* improve filecheck's "scanning from here" caret position.Chris Lattner2009-07-111-0/+11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75371 91177308-0d34-0410-b5e6-96231b3b80d8
* make filecheck default to canonicalizing horizontal whitespaceChris Lattner2009-07-111-0/+66
| | | | | | | away. This way you can write a space and it matches arbitrary spaces and tabs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75370 91177308-0d34-0410-b5e6-96231b3b80d8
* stop on the first file mismatch.Chris Lattner2009-07-091-0/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75076 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new little "FileCheck" utility for regression testing.Chris Lattner2009-07-083-0/+203
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75022 91177308-0d34-0410-b5e6-96231b3b80d8
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