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clang-p2996/llvm/test/tools/UpdateTestChecks/update_test_checks/basic.test
Johannes Doerfert 1698cc7eba [Utils] Allow "on-the-fly" argument changes for update_test_check scripts
Update test scripts were limited because they performed a single action
on the entire file and if that action was controlled by arguments, like
the one introduced in D68819, there was no record of it.

This patch introduces the capability of changing the arguments passed to
the script "on-the-fly" while processing a test file. In addition, an
"on/off" switch was added so that processing can be disabled for parts
of the file where the content is simply copied. The last extension is a
record of the invocation arguments in the auto generated NOTE. These
arguments are also picked up in a subsequent invocation, allowing
updates with special options enabled without user interaction.

To change the arguments the string `UTC_ARGS:` has to be present in a
line, followed by "additional command line arguments". That is
everything that follows `UTC_ARGS:` will be added to a growing list
of "command line arguments" which is reparsed after every update.

Reviewed By: arichardson

Differential Revision: https://reviews.llvm.org/D69701
2020-02-11 16:29:46 -06:00

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# REQUIRES: x86-registered-target
## Basic test checking that update_test_checks.py works correctly
# RUN: cp -f %S/Inputs/basic.ll %t.ll && %update_test_checks %t.ll
# RUN: diff -u %t.ll %S/Inputs/basic.ll.expected
## Check that running the script again does not change the result:
# RUN: %update_test_checks %t.ll
# RUN: diff -u %t.ll %S/Inputs/basic.ll.expected
## Also try the --function-signature flag
# RUN: %update_test_checks %t.ll --function-signature
# RUN: diff -u %t.ll %S/Inputs/basic.ll.funcsig.expected
## Verify that running without the --function-signature flag does not removes
## the -SAME: lines since the generated file will have --function-signature in
## an UTC_ARGS: comment in the first line (from the invocation above) which is
## added to the update invocation below.
# RUN: %update_test_checks %t.ll
# RUN: diff -u %t.ll %S/Inputs/basic.ll.funcsig.expected