Currently the llvm-exegesis native architecture is determined by comparing the
llvm native architecture with X86, so to add a new target would mean adding a
new check. Change this to building up a list of the targets llvm-exegesis
supports then using that, as this means that when adding a new target you just
add the target to the list of supported targets.
Differential Revision: https://reviews.llvm.org/D48778
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336105 91177308-0d34-0410-b5e6-96231b3b80d8
Currently the cycle counter is taken from the subtarget schedule model, which
isn't any use if the subtarget doesn't have one. Delegate the decision to the
target benchmark runner, as it may know better what to do in that case, with
the default being the current behaviour.
Differential Revision: https://reviews.llvm.org/D48779
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@336099 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This enables the X86-specific X86FloatingPointStackifierPass, and allow
llvm-exegesis to generate and measure X87 latency/uops for some FP ops.
Reviewers: gchatelet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48592
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335815 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This allows targets to override code generation for some instructions.
As an example of override, this also moves ad-hoc instruction filtering
for X86 into the X86 ExegesisTarget.
Reviewers: gchatelet
Subscribers: mgorny, tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48587
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335582 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
This ensures that the snippet always sees the same values for registers,
making measurements reproducible.
This will also allow exploring different values.
Reviewers: gchatelet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48542
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335465 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: Introducing a Prototype object to capture Variables that must be set but keeps degrees of freedom as Invalid. This allows exploring non constraint variables later on.
Reviewers: courbet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48316
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335105 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
On hover, the whole asm snippet is displayed, including operands.
This requires the actual assembly output instead of just the MCInsts:
This is because some pseudo-instructions get lowered to actual target
instructions during codegen (e.g. ABS_Fp32 -> SSE or X87).
Reviewers: gchatelet
Subscribers: mgorny, tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48164
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334805 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
Get rid of OpcodeName.
To remove the opcode name from an old file:
```
cat old_file | sed '/opcode_name.*/d'
```
Reviewers: gchatelet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48121
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334691 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: Previous design was relying on the 'mutate' keyword and was quite confusing. This version separate mutable from immutable data and makes it clearer what changes and what doesn't.
Reviewers: courbet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D48020
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334596 91177308-0d34-0410-b5e6-96231b3b80d8
This breaks the OpenFlags enumeration into two separate
enumerations: OpenFlags and CreationDisposition. The first
controls the behavior of the API depending on whether or not
the target file already exists, and is not a flags-based
enum. The second controls more flags-like values.
This yields a more easy to understand API, while also allowing
flags to be passed to the openForRead api, where most of the
values didn't make sense before. This also makes the apis more
testable as it becomes easy to enumerate all the configurations
which make sense, so I've added many new tests to exercise all
the different values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334221 91177308-0d34-0410-b5e6-96231b3b80d8
Summary: This is the first step to have the BenchmarkRunner create and measure many different configurations (different initial values for instance).
Reviewers: courbet
Subscribers: tschuett, llvm-commits
Differential Revision: https://reviews.llvm.org/D47826
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334169 91177308-0d34-0410-b5e6-96231b3b80d8
Moves the Mode field out of the Key. The existing yaml benchmark results can be fixed with the following script:
```
readonly FILE=$1
readonly MODE=latency # Change to uops to fix a uops benchmark.
cat $FILE | \
sed "/^\ \+mode:\ \+$MODE$/d" | \
sed "/^cpu_name.*$/i mode: $MODE"
```
Differential Revision: https://reviews.llvm.org/D47813
Authored by: Guillaume Chatelet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334079 91177308-0d34-0410-b5e6-96231b3b80d8
We want llvm-exegesis to explore instructions (effect of initial register values, effect of operand selection). To enable this a BenchmarkResult muststore all the relevant data in its key. This patch starts adding such data. Here we simply allow to store the generated instructions, following patches will add operands and initial values for registers.
https://reviews.llvm.org/D47764
Authored by: Guilluame Chatelet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@334008 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
We now highlight any sched classes whose measurements do not match the
LLVM SchedModel. "bad" clusters are marked in red.
Screenshot in phabricator diff.
Reviewers: gchatelet
Subscribers: tschuett, mgrang, RKSimon, llvm-commits
Differential Revision: https://reviews.llvm.org/D47639
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333884 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
I'm slowly looking into a new X86 scheduler model,
for AMD Bulldozer CPU, model 2 (bdver2, Piledriver).
And naturally, i have hit that assert :)
I happened to know what it meant, and how to fix it,
but that is not too common knowledge.
Reviewers: courbet, RKSimon
Reviewed By: courbet
Subscribers: tschuett, llvm-commits, craig.topper
Differential Revision: https://reviews.llvm.org/D47572
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@333632 91177308-0d34-0410-b5e6-96231b3b80d8
