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26 Commits

Author SHA1 Message Date
Clement Courbet 0d79aaf1a7 Revert "[llvm-exegesis] Add a snippet generator to generate snippets to compute ROB sizes." 
This reverts accidental commit rL346394.

llvm-svn: 346398
 2018-11-08 12:09:45 +00:00
Clement Courbet c0950ae990 [llvm-exegesis] Add a snippet generator to generate snippets to compute ROB sizes. 
llvm-svn: 346394
 2018-11-08 11:45:14 +00:00
Simon Pilgrim 2a9c728088 Fix MSVC llvm-exegesis build. NFCI. 
MSVC is a bit funny about is_pod.....

llvm-svn: 345252
 2018-10-25 10:45:38 +00:00
Clement Courbet b4b6ec01c6 [llvm-exegesis] Add missing initializer. 
This is a better fix than rL345245.

llvm-svn: 345246
 2018-10-25 08:11:35 +00:00
Clement Courbet fa99b36e4d [llvm-exegesis] Fix VC build of r345243. 
"const members cannot be default initialized unless their type has a user defined default constructor"

Make members non-const.

llvm-svn: 345245
 2018-10-25 08:08:58 +00:00
Clement Courbet 41c8af3924 [MCSched] Bind PFM Counters to the CPUs instead of the SchedModel. 
Summary:
The pfm counters are now in the ExegesisTarget rather than the
MCSchedModel (PR39165).

This also compresses the pfm counter tables (PR37068).

Reviewers: RKSimon, gchatelet

Subscribers: mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D52932

llvm-svn: 345243
 2018-10-25 07:44:01 +00:00
Fangrui Song 32401afd8c [llvm-exegesis] Move namespace exegesis inside llvm:: 
Summary:
This allows simplifying references of llvm::foo with foo when the needs
come in the future.

Reviewers: courbet, gchatelet

Reviewed By: gchatelet

Subscribers: javed.absar, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D53455

llvm-svn: 344922
 2018-10-22 17:10:47 +00:00
Guillaume Chatelet 70ac019efa [llvm-exegesis][NFC] moving code around. 
Summary: Renaming InstructionBuilder into InstructionTemplate and moving code generation tools from MCInstrDescView to CodeTemplate.

Reviewers: courbet

Subscribers: tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D52592

llvm-svn: 343188
 2018-09-27 09:23:04 +00:00
Guillaume Chatelet c96a97bac7 [llvm-exegesis] Improve Register Setup (roll forward of D51856). 
Summary:
Added function to set a register to a particular value + tests.
Add EFLAGS test, use new setRegTo instead of setRegToConstant.

Reviewers: courbet, javed.absar

Subscribers: llvm-commits, tschuett, mgorny

Differential Revision: https://reviews.llvm.org/D52297

llvm-svn: 342644
 2018-09-20 12:22:18 +00:00
Simon Pilgrim f652ef3d52 Revert rL342465: Added function to set a register to a particular value + tests. 
rL342465 is breaking the MSVC buildbots.

llvm-svn: 342490
 2018-09-18 15:38:16 +00:00
Simon Pilgrim 0242689725 Revert rL342466: [llvm-exegesis] Improve Register Setup. 
rL342465 is breaking the MSVC buildbots, but I need to revert this dependent revision as well.

Summary:
Added function to set a register to a particular value + tests.
Add EFLAGS test, use new setRegTo instead of setRegToConstant.

Reviewers: courbet, javed.absar

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D51856

llvm-svn: 342489
 2018-09-18 15:35:49 +00:00
Guillaume Chatelet 937f3fedec [llvm-exegesis] Improve Register Setup. 
Summary:
Added function to set a register to a particular value + tests.
Add EFLAGS test, use new setRegTo instead of setRegToConstant.

Reviewers: courbet, javed.absar

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D51856

llvm-svn: 342466
 2018-09-18 11:26:48 +00:00
Guillaume Chatelet 8721ad98d1 Added function to set a register to a particular value + tests. 
llvm-svn: 342465
 2018-09-18 11:26:35 +00:00
Guillaume Chatelet 5ad2909e52 Improve Register Setup 
llvm-svn: 342464
 2018-09-18 11:26:27 +00:00
Clement Courbet d939f6d013 [llvm-exegesis][NFC] Split BenchmarkRunner class 
Summary:
The snippet-generation part goes to the SnippetGenerator class.

This will allow benchmarking arbitrary code (see PR38437).

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D51979

llvm-svn: 342117
 2018-09-13 07:40:53 +00:00
Guillaume Chatelet 171f3f46c8 [llvm-exegesis] Rename InstructionInstance into InstructionBuilder. 
Summary: Non functional change.

Subscribers: tschuett, courbet, llvm-commits

Differential Revision: https://reviews.llvm.org/D50176

llvm-svn: 338701
 2018-08-02 11:12:02 +00:00
Guillaume Chatelet fb94354d2d [llvm-exegesis] Provide a way to handle memory instructions. 
Summary:
And implement memory instructions on X86.

This fixes PR36906.

Reviewers: gchatelet

Reviewed By: gchatelet

Subscribers: lebedev.ri, filcab, mgorny, tschuett, RKSimon, llvm-commits

Differential Revision: https://reviews.llvm.org/D48935

llvm-svn: 338567
 2018-08-01 14:41:45 +00:00
Clement Courbet e785169fce [llvm-exegesis] ExegisX86Target::setRegToConstant() should depend on the subtarget features. 
Summary: This fixes PR38008.

Reviewers: gchatelet, RKSimon

Subscribers: tschuett, craig.topper, llvm-commits

Differential Revision: https://reviews.llvm.org/D48820

llvm-svn: 336171
 2018-07-03 06:17:05 +00:00
Clement Courbet 4860b98443 [llvm-exegesis] Get the BenchmarkRunner from the ExegesisTarget. 
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

llvm-svn: 335582
 2018-06-26 08:49:30 +00:00
Clement Courbet a51efc266c [llvm-exegesis] Generate snippet setup code. 
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

llvm-svn: 335465
 2018-06-25 13:12:02 +00:00
Clement Courbet cff2caac75 [llvm-exegesis][NFC] clang-format 
llvm-svn: 335452
 2018-06-25 11:22:23 +00:00
Clement Courbet 6fd00e32e5 [llvm-exegesis] Add mechanism to add target-specific passes. 
Summary:
createX86FloatingPointStackifierPass is disabled until we handle
TracksLiveness correctly.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48360

llvm-svn: 335117
 2018-06-20 11:54:35 +00:00
Roman Lebedev 3de9664494 llvm-exegesis: mark ~ExegesisTarget() as virtual. Fixes build. 
/build/llvm/tools/llvm-exegesis/lib/X86/../Target.h:32:3: error: 'exegesis::ExegesisTarget' has virtual functions but non-virtual destructor [-Werror,-Wnon-virtual-dtor]
  ~ExegesisTarget();
  ^
/build/llvm/tools/llvm-exegesis/lib/X86/Target.cpp:15:7: error: 'exegesis::(anonymous namespace)::ExegesisX86Target' has virtual functions but non-virtual destructor [-Werror,-Wnon-virtual-dtor]
class ExegesisX86Target : public ExegesisTarget {
      ^

llvm-svn: 335042
 2018-06-19 11:58:10 +00:00
Clement Courbet 44b4c54e26 Re-land r335038 "[llvm-exegesis] A mechanism to add target-specific functionality."" 
Fix typo: LLVM_NATIVE_ARCH -> LLVM_EXEGESIS_NATIVE_ARCH.

llvm-svn: 335041
 2018-06-19 11:28:59 +00:00
Clement Courbet 46751785ee Revert r335038 "[llvm-exegesis] A mechanism to add target-specific functionality." 
Breaks buildbots.

llvm-svn: 335040
 2018-06-19 10:54:12 +00:00
Clement Courbet 6780b5f97d [llvm-exegesis] A mechanism to add target-specific functionality. 
Summary: This is a step towards implementing memory operands and X87.

Reviewers: gchatelet

Subscribers: mgorny, tschuett, llvm-commits

Differential Revision: https://reviews.llvm.org/D48210

llvm-svn: 335038
 2018-06-19 10:39:50 +00:00