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llvm-project/llvm/test/FileCheck/empty-regex-match-at-start.txt

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[FileCheck]Remove assertions that prevent matching an empty string at file start before CHECK-NEXT/SAME This patch removes two assertions that were preventing writing of a test that checked an empty line followed by some text. For example: CHECK: {{^$}} CHECK-NEXT: foo() The assertion was because the current location the CHECK-NEXT was scanning from was the start of the buffer. A similar issue occurred with CHECK-SAME. These assertions don't protect against anything, as there is already an error check that checks that CHECK-NEXT/EMPTY/SAME don't appear first in the checks, and the following code works fine if the pointer is at the start of the input. Reviewed by: probinson, thopre, jdenny Differential Revision: https://reviews.llvm.org/D58784 llvm-svn: 355928
2019-03-12 23:37:34 +08:00
some text
more text
RUN: FileCheck %s --check-prefix=NEXT --input-file=%s
NEXT: {{^}}
NEXT-NEXT: more text
RUN: FileCheck %s --check-prefix=SAME --input-file=%s
SAME: {{^}}
SAME-SAME: some text
RUN: echo "" > %t
RUN: echo "" >> %t
RUN: FileCheck %s --check-prefix=EMPTY --input-file=%t
EMPTY: {{^}}
EMPTY-EMPTY: