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llvm-mirror/test/FileCheck/allow-unused-prefixes.txt
Fangrui Song 6da5cc31da [FileCheck] Default --allow-unused-prefixes to false
Link: https://lists.llvm.org/pipermail/llvm-dev/2020-October/146162.html "[RFC] FileCheck: (dis)allowing unused prefixes"

If a downstream project using lit needs time for transition,
add the following to `lit.local.cfg`:

```
from lit.llvm.subst import ToolSubst

fc = ToolSubst('FileCheck', unresolved='fatal')
config.substitutions.insert(0, (fc.regex, 'FileCheck --allow-unused-prefixes'))
```

Differential Revision: https://reviews.llvm.org/D95849
2021-02-08 13:37:04 -08:00

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951 B
Plaintext

; RUN: %ProtectFileCheckOutput not FileCheck --allow-unused-prefixes=false --check-prefixes=P1,P2 --input-file %S/Inputs/one-check.txt %S/Inputs/one-check.txt 2>&1 | FileCheck --check-prefix=MISSING-ONE %s
; RUN: %ProtectFileCheckOutput not FileCheck --allow-unused-prefixes=false --check-prefixes=P1,P2,P3 --input-file %S/Inputs/one-check.txt %S/Inputs/one-check.txt 2>&1 | FileCheck --check-prefix=MISSING-MORE %s
; RUN: FileCheck --allow-unused-prefixes=true --check-prefixes=P1,P2 --input-file %S/Inputs/one-check.txt %S/Inputs/one-check.txt
; RUN: FileCheck --allow-unused-prefixes=false --allow-unused-prefixes=true --check-prefixes=P1,P2 --input-file %S/Inputs/one-check.txt %S/Inputs/one-check.txt
; RUN: not FileCheck --check-prefixes=P1,P2 --input-file %S/Inputs/one-check.txt %S/Inputs/one-check.txt
; MISSING-ONE: error: no check strings found with prefix 'P2:'
; MISSING-MORE: error: no check strings found with prefixes 'P2:', 'P3:'