Use the query that doesn't assert if TracksLiveness isn't set, which
needs to always be available. We also need to start printing liveins
regardless of TracksLiveness.
Support the pattern where a test file uses multiple prefixes per run line:
one prefix that is unique to the run line, and additional prefixes that are
common with other run lines.
Decide on a per-function basis which prefix(es) to emit, based on which run
lines have the same output.
Move the renaming of vregs earlier, so that we can compare the output as it
would actually be printed in check lines.
Differential Revision: https://reviews.llvm.org/D126411
Previously the script emitted output using plain CHECK directives. This
can result in a test passing even if there are some instructions between
CHECK directives that should have been removed. It also makes debugging
tests that have the output in a different order more difficult since
FileCheck can match with a later line and then complain about the "wrong"
directive not being found.
This will cause quite large diffs when updating existing tests, but I'm not sure we need an opt-in flag here.
Depends on D109765 (pre-commit tests)
Reviewed By: MaskRay
Differential Revision: https://reviews.llvm.org/D109767
Matt Arsenault