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9 Commits

Author SHA1 Message Date
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