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[PPCGCodeGeneration] Enable polly-codegen-perf-monitoring for PPCGCodegen.

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This feature was not enabled for `PPCGCodeGeneration`. Now that this is
enabled, we can benchmark Scops that have been optimised with
`-polly-codegen-ppcg` with the `-polly-codegen-perf-monitoring` option.

Differential Revision: https://reviews.llvm.org/D36934

llvm-svn: 311328
This commit is contained in:
Siddharth Bhat 2017-08-21 11:44:01 +00:00
parent 685889cf9b
commit 7b9f5ca27e
3 changed files with 27 additions and 4 deletions
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2
polly/include/polly/CodeGen/CodeGeneration.h
View File

@ -36,6 +36,8 @@ struct CodeGenerationPass : public PassInfoMixin<CodeGenerationPass> {
PreservedAnalyses run(Scop &S, ScopAnalysisManager &SAM,
ScopStandardAnalysisResults &AR, SPMUpdater &U);
};
extern bool PerfMonitoring;
} // namespace polly
#endif // POLLY_CODEGENERATION_H

10
polly/lib/CodeGen/CodeGeneration.cpp
View File

@ -49,10 +49,12 @@ static cl::opt<bool> Verify("polly-codegen-verify",
cl::Hidden, cl::init(false), cl::ZeroOrMore,
cl::cat(PollyCategory));
static cl::opt<bool>
PerfMonitoring("polly-codegen-perf-monitoring",
cl::desc("Add run-time performance monitoring"), cl::Hidden,
cl::init(false), cl::ZeroOrMore, cl::cat(PollyCategory));
bool polly::PerfMonitoring;
static cl::opt<bool, true>
XPerfMonitoring("polly-codegen-perf-monitoring",
cl::desc("Add run-time performance monitoring"), cl::Hidden,
cl::location(polly::PerfMonitoring), cl::init(false),
cl::ZeroOrMore, cl::cat(PollyCategory));
namespace polly {
/// Mark a basic block unreachable.

19
polly/lib/CodeGen/PPCGCodeGeneration.cpp
View File

@ -16,6 +16,7 @@
#include "polly/CodeGen/CodeGeneration.h"
#include "polly/CodeGen/IslAst.h"
#include "polly/CodeGen/IslNodeBuilder.h"
#include "polly/CodeGen/PerfMonitor.h"
#include "polly/CodeGen/Utils.h"
#include "polly/DependenceInfo.h"
#include "polly/LinkAllPasses.h"
@ -122,6 +123,8 @@ static cl::opt<int>
cl::desc("Minimal number of compute statements to run on GPU."),
cl::Hidden, cl::init(10 * 512 * 512));
extern bool polly::PerfMonitoring;
/// Return a unique name for a Scop, which is the scop region with the
/// function name.
std::string getUniqueScopName(const Scop *S) {
@ -3433,6 +3436,22 @@ public:
isl_ast_node_free(Root);
} else {
if (polly::PerfMonitoring) {
PerfMonitor P(*S, EnteringBB->getParent()->getParent());
P.initialize();
P.insertRegionStart(SplitBlock->getTerminator());
// TODO: actually think if this is the correct exiting block to place
// the `end` performance marker. Invariant load hoisting changes
// the CFG in a way that I do not precisely understand, so I
// (Siddharth<siddu.druid@gmail.com>) should come back to this and
// think about which exiting block to use.
auto *ExitingBlock = StartBlock->getUniqueSuccessor();
assert(ExitingBlock);
BasicBlock *MergeBlock = ExitingBlock->getUniqueSuccessor();
P.insertRegionEnd(MergeBlock->getTerminator());
}
NodeBuilder.addParameters(S->getContext().release());
Value *RTC = NodeBuilder.createRTC(Condition);
Builder.GetInsertBlock()->getTerminator()->setOperand(0, RTC);