llvm-project.git/llvm/lib/Target/SystemZ/SystemZHazardRecognizer.cpp, branch users/nico/python-2

[TableGen] Rename ResourceCycles and StartAtCycle to clarify semantics

2023-08-25T02:21:36+00:00

D150312 added a TODO:

TODO: consider renaming the field `StartAtCycle` and `Cycles` to
`AcquireAtCycle` and `ReleaseAtCycle` respectively, to stress the
fact that resource allocation is now represented as an interval,
relatively to the issue cycle of the instruction.

This patch implements that TODO. This naming clarifies how to use these
fields in the scheduler. In addition it was confusing that `StartAtCycle` was
singular but `Cycles` was plural. This renaming fixes this inconsistency.

This commit as previously reverted since it missed renaming that came
down after rebasing. This version of the commit fixes those problems.

Differential Revision: https://reviews.llvm.org/D158568

Use basic_string::find(char) instead of basic_string::find(const char *s, size_type pos=0)

2020-12-17T07:28:32+00:00

Many (StringRef) cannot be detected by clang-tidy performance-faster-string-find.

HazardRecognizer - Fix definition/declaration argument name mismatches. NFCI.

2020-11-18T16:50:52+00:00

Consistently use SUnit *SU (or drop the argname entirely if not used like the other HazardRecognizer methods).

Silences cppcheck warnings.

Update the file headers across all of the LLVM projects in the monorepo

2019-01-19T08:50:56+00:00

to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636

[SystemZ] Comment update.

2018-08-07T13:48:09+00:00

Update the comment in nextGroup since the ProcResourceCounters are not anymore
always decremented with '1'.

llvm-svn: 339140

[SystemZ] NFC: Remove redundant check in SystemZHazardRecognizer.

2018-08-07T13:44:11+00:00

Remove the redundant check against zero when updating ProcResourceCounters in
nextGroup(), as pointed out in https://reviews.llvm.org/D50187.

Review: Ulrich Weigand.
llvm-svn: 339139

[SystemZ] Improve handling of instructions which expand to several groups

2018-08-03T10:43:05+00:00

Some instructions expand to more than one decoder group.

This has been hitherto ignored, but is handled with this patch.

Review: Ulrich Weigand
https://reviews.llvm.org/D50187

llvm-svn: 338849

[SystemZ] Fix bad assert composition.

2018-07-31T19:58:42+00:00

Use '&&' before the string instead of '||'

llvm-svn: 338429

[SystemZ] Improve decoding in case of instructions with four register operands.

2018-07-31T13:00:42+00:00

Since z13, the max group size will be 2 if any μop has more than 3 register
sources.

This has been ignored sofar in the SystemZHazardRecognizer, but is now
handled by recognizing those instructions and adjusting the tracking of
decoding and the cost heuristic for grouping.

Review: Ulrich Weigand
https://reviews.llvm.org/D49847

llvm-svn: 338368

Remove trailing space

2018-07-30T19:41:25+00:00

sed -Ei 's/[[:space:]]+$//' include/**/*.{def,h,td} lib/**/*.{cpp,h}

llvm-svn: 338293