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393fb2cc2e
Summary: Commit r366897 introduced the possibility to set a variable from an expression, such as [[#VAR2:VAR1+3]]. While introducing this feature, it introduced extra logic to allow using such a variable on the same line later on. Unfortunately that extra logic is flawed as it relies on a mapping from variable to expression defining it when the mapping is from variable definition to expression. This flaw causes among other issues PR42896. This commit avoids the problem by forbidding all use of a variable defined on the same line, and removes the now useless logic. Redesign will be done in a later commit because it will require some amount of refactoring first for the solution to be clean. One example is the need for some sort of transaction mechanism to set a variable temporarily and from an expression and rollback if the CHECK pattern does not match so that diagnostics show the right variable values. Reviewers: jhenderson, chandlerc, jdenny, probinson, grimar, arichardson, rnk Subscribers: JonChesterfield, rogfer01, hfinkel, kristina, rnk, tra, arichardson, grimar, dblaikie, probinson, llvm-commits, hiraditya Tags: #llvm Differential Revision: https://reviews.llvm.org/D66141 llvm-svn: 370663 |
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| .. | ||
| check-a-b-has-b.txt | ||
| check-b-a-has-b.txt | ||
| check-count.txt | ||
| check-dag-multi-prefix-2.txt | ||
| check-dag-multi-prefix.txt | ||
| check-dag-not-dag.txt | ||
| check-dag-overlap-torture.txt | ||
| check-dag-overlap.txt | ||
| check-dag-substring-prefix.txt | ||
| check-dag-xfails.txt | ||
| check-dag.txt | ||
| check-empty2.txt | ||
| check-empty-tag.txt | ||
| check-empty.txt | ||
| check-label-dag-capture.txt | ||
| check-label-dag.txt | ||
| check-label.txt | ||
| check-multi-prefix-label.txt | ||
| check-multiple-prefixes-mixed.txt | ||
| check-multiple-prefixes-nomatch-2.txt | ||
| check-multiple-prefixes-nomatch.txt | ||
| check-multiple-prefixes-substr.txt | ||
| check-not-diaginfo.txt | ||
| check-prefixes.txt | ||
| check-substring-multi-prefix-2.txt | ||
| check-substring-multi-prefix.txt | ||
| dos-style-eol.txt | ||
| dump-input-annotations.txt | ||
| dump-input-enable.txt | ||
| empty-regex-match-at-start.txt | ||
| envvar-opts.txt | ||
| first-character-match.txt | ||
| implicit-check-not.txt | ||
| line-count-2.txt | ||
| line-count.txt | ||
| lit.local.cfg | ||
| match-full-lines.txt | ||
| multiple-missing-prefixes.txt | ||
| next-no-match.txt | ||
| no-check-file.txt | ||
| no-multi-suffixes.txt | ||
| numeric-defines-diagnostics.txt | ||
| numeric-defines.txt | ||
| numeric-expression.txt | ||
| opt-color.txt | ||
| regex-brackets.txt | ||
| regex-no-match.txt | ||
| same.txt | ||
| separate-multi-prefix.txt | ||
| simple-var-capture.txt | ||
| string-defines-diagnostics.txt | ||
| string-defines.txt | ||
| two-checks-for-same-match.txt | ||
| validate-check-prefix.txt | ||
| var-ref-same-line.txt | ||
| var-scope.txt | ||
| verbose.txt | ||