On MIPS, functions with exception handling code emits an additional
temporary label at the start of the function (due to UseAssignmentForEHBegin):
_Z8do_catchv: # @_Z8do_catchv
.Ltmp3:
.set .Lfunc_begin0, .Ltmp3
.cfi_startproc
.cfi_personality 128, DW.ref.__gxx_personality_v0
.cfi_lsda 0, .Lexception0
.frame $c11,48,$c17
.mask 0x00000000,0
.fmask 0x00000000,0
.set noreorder
.set nomacro
.set noat
# %bb.0: # %entry
The `[^:]*` regex was terminating the search after .Ltmp<N>: and therefore
not detecting functions with exception handling.
Reviewed By: atanasyan, MaskRay
Differential Revision: https://reviews.llvm.org/D100027
Make the update_llc_test_checks script test independant of llc behavior
by using cat with static files to simulate llc output.
This allows changing llc without breaking the script test case.
The update script is executed in a temporary directory, so the
llc-generated assembly files are copied there. %T is deprecated, but it
allows copying a file with a predictable filename.
Differential Revision: https://reviews.llvm.org/D110143
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
Add a comment when there is a shifted value,
add x9, x0, #291, lsl #12 ; =1191936
but not when the immediate value is unshifted,
subs x9, x0, #256 ; =256
when the comment adds nothing additional to the reader.
Differential Revision: https://reviews.llvm.org/D107196
When checking if two prefixes can be merged for a function,
update_llc_test_checks.py removed IR comments before comparing
llc outputs of different RUN lines.
This means, if one RUN line emited lines starting with ';' and another
RUN line emited the same lines except the ones starting with ';', both
RUNs would be merged (if they share a prefix).
However, CHECK-NEXT lines check the comments, otherwise they fail, so
the script should not merge RUNs if they contain different comments.
Differential Revision: https://reviews.llvm.org/D101312
We are using TOCEntry symbols like `LC..0` in TOC loads,
this is hard to read , at least requiring an additional step to figure
out the loaded symbols.
We should print out the name in comments.
Reviewed By: #powerpc, shchenz
Differential Revision: https://reviews.llvm.org/D102949
True is a bad default: the useful symbol names and `@GOTPCREL` are scrubbed.
Change the default and add global variable tests to x86-basic.ll
(renamed from x86_function_name.ll since we now also test variables).
I updated some tests to show the differences.
Updated LCPI regex to include Darwin style `LCPI_[0-9]+_[0-9]+` (no
leading dot).
Reviewed By: pengfei
Differential Revision: https://reviews.llvm.org/D102588
This has been rather useful in our downstream CHERI target where we want
to run tests both with addrspace(0) and addrspace(200) pointers.
With this patch we can prefix the opt command with
`sed -e 's/addrspace(200)/addrspace(0)/g' -e 's/-A200-P200-G200//g'` to
test both cases using the same IR input.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D95137
This allows to check for various globals (metadata/attributes/...) and
also resolves problems with globals (metadata/attributes/...) being
reused across different prefixes.
Reviewed By: sstefan1
Differential Revision: https://reviews.llvm.org/D94741
The switch controls both unused prefix warnings, and warnings about
functions which differ under different runs for a prefix, and, thus, end
up not having asserts for that prefix.
(If the latter case spans to all functions, then the former case kicks
in)
The switch is on by default, and can be disabled.
Differential Revision: https://reviews.llvm.org/D95829
This patch handles cases where we have to save/restore the link register
into the stack and and load/store instruction which use the stack are
part of the outlined region. It checks that there will be no overflow
introduced by the new offset and fixup these instructions accordingly.
Differential Revision: https://reviews.llvm.org/D92934
Current update_llc_test_checks.py cannot generate checks for AIX
(powerpc64-ibm-aix-xcoff) properly. Assembly generated is little bit
different from Linux. So I use begin function comment here to capture
function name.
Reviewed By: MaskRay, steven.zhang
Differential Revision: https://reviews.llvm.org/D93676
Two RUN lines produce outputs that, each, have some common parts and
some different parts. The common parts are checked under label A. The
differing parts are associated to a function and checked under labels B
and C, respectivelly.
When build_function_body_dictionary is called for the first RUN line, it
will attribute the function body to labels A and C. When the second RUN
is passed to build_function_body_dictionary, it sees that the function
body under A is different from what it has. If in this second RUN line,
A were at the end of the prefixes list, A's body is still kept
associated with the first run's function.
When we output the function body (i.e. add_checks), we stop after
emitting for the first prefix matching that function. So we end up with
the wrong function body (first RUN's A-association).
There is no reason to special-case the last label in the prefixes list,
and the fix is to always clear a label association if we find a RUN line
where the body is different.
Differential Revision: https://reviews.llvm.org/D93078
Removes AArch64 target checking inside 32bit ARM test to bring back
buildbots to a green state. But $ are not well handled for ARM and it
still need to be fixed.
This broke Chromium's PGO build, it seems because hot-cold-splitting got turned
on unintentionally. See comment on the code review for repro etc.
> This patch adds -f[no-]split-cold-code CC1 options to clang. This allows
> the splitting pass to be toggled on/off. The current method of passing
> `-mllvm -hot-cold-split=true` to clang isn't ideal as it may not compose
> correctly (say, with `-O0` or `-Oz`).
>
> To implement the -fsplit-cold-code option, an attribute is applied to
> functions to indicate that they may be considered for splitting. This
> removes some complexity from the old/new PM pipeline builders, and
> behaves as expected when LTO is enabled.
>
> Co-authored by: Saleem Abdulrasool <compnerd@compnerd.org>
> Differential Revision: https://reviews.llvm.org/D57265
> Reviewed By: Aditya Kumar, Vedant Kumar
> Reviewers: Teresa Johnson, Aditya Kumar, Fedor Sergeev, Philip Pfaffe, Vedant Kumar
This reverts commit 273c299d5d.
This patch adds -f[no-]split-cold-code CC1 options to clang. This allows
the splitting pass to be toggled on/off. The current method of passing
`-mllvm -hot-cold-split=true` to clang isn't ideal as it may not compose
correctly (say, with `-O0` or `-Oz`).
To implement the -fsplit-cold-code option, an attribute is applied to
functions to indicate that they may be considered for splitting. This
removes some complexity from the old/new PM pipeline builders, and
behaves as expected when LTO is enabled.
Co-authored by: Saleem Abdulrasool <compnerd@compnerd.org>
Differential Revision: https://reviews.llvm.org/D57265
Reviewed By: Aditya Kumar, Vedant Kumar
Reviewers: Teresa Johnson, Aditya Kumar, Fedor Sergeev, Philip Pfaffe, Vedant Kumar
Remove RISCV codegen tests for --include-generated-funcs because apparently
MachineOutliner has a bug on that target that is exposed by expensive-checks.
This reverts commit ca907bfb57.
According to michel.daenzer,
> This completely broke the Mesa radeonsi driver on Navi 14. Xorg +
> xterm come up with major corruption & psychedelic colours.
When memory operations are outstanding on function calls, either the
caller or the callee can insert a waitcnt to ensure that all reads are
finished.
Calls need some time to be executed, so if the callee inserts the
waitcnt, filling the instruction buffer and waiting for memory will be
interleaved, hiding some latency. This comes at the cost of having a
waitcnt inside functions that may not be needed as no memory operations
are outstanding.
For function calls, this is already implemented. The same principal
applies to returns: If the caller inserts a waitcnt after the call, the
callee does not have to wait and the return and memory operation can be
run in parallel.
This commit implements waiting in the caller after returning from a
function call.
Differential Revision: https://reviews.llvm.org/D87674
Add the --include-generated-funcs option to update_cc_test_checks.py so that any
functions created by the compiler that don't exist in the source will also be
checked.
We need to maintain the output order of generated function checks so that
CHECK-LABEL works properly. To do so, maintain a list of functions output for
each prefix in the order they are output. Use this list to output checks for
generated functions in the proper order.
Differential Revision: https://reviews.llvm.org/D83004
Some compilers generation functions with '$' in their names, so recognize those
functions.
This also requires recognizing function names inside quotes in some contexts in
order to escape certain characters.
Differential Revision: https://reviews.llvm.org/D82995
After D85099, if we have attribute group in the function signature that hasn't
been seen before, and later a callsite with the same attribute group, filecheck will evaluate
the first attribute group to for example '#0 {'. We now include { in the args_and_sig group to avoid this.
Differential Revision: https://reviews.llvm.org/D86769
With this patch we will match most *uses* of "temporary" named things in
the IR via regular expressions, not their name at creation time. The new
"values" we match are:
- "unnamed" globals: `@[0-9]+`
- debug metadata: `!dbg ![0-9]+`
- loop metadata: `!loop ![0-9]+`
- tbaa metadata: `!tbaa ![0-9]+`
- range metadata: `!range ![0-9]+`
- generic metadata: `metadata ![0-9]+`
- attributes groups: `#[0-9]`
We still don't match the declarations but that can be done later. This
patch can introduce churn when existing check lines contain the old
hardcoded versions of the above "values". We can add a flag to opt-out,
or opt-in, if necessary.
Reviewed By: arichardson, MaskRay
Differential Revision: https://reviews.llvm.org/D85099
Summary:
This introduces new flag to the update_test_checks and
update_cc_test_checks that allows for function attributes
to be checked in a check-line. If the flag is not set,
the behavior should remain the same.
Reviewers: jdoerfert
Subscribers: arichardson, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D83629
https://reviews.llvm.org/D69701 added support for on-the-fly argument
changes for update scripts. I recently wanted to keep some manual check
lines in a test generated by update_cc_test_checks.py in our CHERI fork, so
this commit adds support for UTC_ARGS in update_cc_test_checks.py. And since
I was refactoring the code to be in common.py, I also added it for
update_llc_test_checks.py.
Reviewed By: jdoerfert, MaskRay
Differential Revision: https://reviews.llvm.org/D78478
This is effectively reverting rGbfdc2552664d to avoid test churn
while we figure out a better way forward.
We at least salvage the warning on name conflict from that patch
though.
If we change the default string again, we may want to mass update
tests at the same time. Alternatively, we could live with the poor
naming if we change -instnamer.
This also adds a test to LLVM as suggested in the post-commit
review. There's a clang test that is also affected. That seems
like a layering violation, but I have not looked at fixing that yet.
Differential Revision: https://reviews.llvm.org/D80584
We now use the argparse Action objects to determine the name of the flags.
This fixes cases where the key for the stored result ('dest') is not the
same as the command line flag (e.g. --enable/--disable).
Also add a test that --disabled can be part of the initial UTC_ARGS.
This is split out from D78478
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D78617
While D68850 allowed functions to be deleted I accidentally saved some
version of the function to be used once a suitable prefix was found.
This turned out to be problematic when the occasionally deleted function
is also occasionally modified. The test case is adjusted to resemble the
case in which the problem was found.
Reviewed By: lebedev.ri
Differential Revision: https://reviews.llvm.org/D76586
Having tests that depend on clang inside llvm/ are not a good idea since
it can break incremental `ninja check-llvm`.
Fixes https://llvm.org/PR44798
Reviewed By: lebedev.ri, MaskRay, rsmith
Differential Revision: https://reviews.llvm.org/D74051
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
Previously we were adding the CHECK lines to both definitions and
declarations. Update the JSON AST dump parsing code to skip all
FunctionDecls without an "inner" node (i.e. no body).
Reviewed By: MaskRay, greened
Differential Revision: https://reviews.llvm.org/D73708
The tests were removed in 287307a0c6 to
avoid a dependency on python3. update_cc_tests_checks.py also works with
python2 so restore the tests without the python3 dependency.
Alex Richardson