llvm-project.git/llvm/test/Transforms/SimplifyCFG/debug-info-thread-phi.ll, branch users/nico/python-2

[RemoveDIs] Remove "try-debuginfo-iterators..." test flags (#130298)

2025-03-14T15:50:49+00:00

These date back to when the non-intrinsic format of variable locations
was still being tested and was behind a compile-time flag, so not all
builds / bots would correctly run them. The solution at the time, to get
at least some test coverage, was to have tests opt-in to non-intrinsic
debug-info if it was built into LLVM.

Nowadays, non-intrinsic format is the default and has been on for more
than a year, there's no need for this flag to exist.

(I've downgraded the flag from "try" to explicitly requesting
non-intrinsic format in some places, so that we can deal with tests that
are explicitly about non-intrinsic format in their own commit).

[DebugInfo][RemoveDIs] Make debugify pass convert to/from RemoveDIs mode (#73251)

2023-11-29T13:19:50+00:00

Debugify is extremely useful as a testing and debugging tool, and a good
number of LLVM-IR transform tests use it. We need it to support "new"
non-instruction debug-info to get test coverage, but it's not important
enough to completely convert right now (and it'd be a large
undertaking). Thus: convert to/from dbg.value/DPValue mode on entry and
exit of the pass, which gives us the functionality without any further
work. The cost is compile-time, but again this is only happening during
tests.

Tested by: the large set of debugify tests enabled here. Note the
InstCombine test (cast-mul-select.ll) that hasn't been fully enabled:
this is because there's a debug-info sinking piece of code there that
hasn't been instrumented.

[SimplifyCFG] Convert tests to opaque pointers (NFC)

2022-12-14T14:14:12+00:00

[NFC] Port all runlines for SimplifyCFG pass tests to -passes syntax

2022-12-05T18:12:20+00:00

[SimplifyCFG] Teach FoldCondBranchOnPHI() to preserve DomTree

2020-12-29T21:48:11+00:00

[NFCI][SimlifyCFG] simplifyOnce(): also perform DomTree validation

2020-12-19T21:18:32+00:00

And that exposes that a number of tests don't *actually* manage to
maintain DomTree validity, which is inline with my observations.

Once again, SimlifyCFG pass currently does not require/preserve DomTree
by default, so this is effectively NFC.

[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree

2020-12-16T22:03:49+00:00

... so just ensure that we pass DomTreeUpdater it into it.

Fixes DomTree preservation for a large number of tests,
all of which are marked as such so that they do not regress.

Revert "Temporarily Revert "Add basic loop fusion pass.""

2019-04-17T04:52:47+00:00

The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552

Temporarily Revert "Add basic loop fusion pass."

2019-04-17T02:12:23+00:00

As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546

Tighten up tests that use -debugify as a shortcut. NFC

2019-03-14T23:09:17+00:00

These now verify that a given instruction has a specific source
location, rather than any old location. We want to make sure we
propagate the correct locations from one instruction to another.

llvm-svn: 356217