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[PM] Add GVNSink to the pipeline.

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With this, the two pipelines should be in sync again (modulo
LoopUnswitch, but Chandler is actively working on that).

Differential Revision:  https://reviews.llvm.org/D33810

llvm-svn: 304671
This commit is contained in:
Davide Italiano 2017-06-03 23:18:29 +00:00
parent 0fd127b2fb
commit 667c5c6a07
1 changed files with 10 additions and 0 deletions
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10
lib/Passes/PassBuilder.cpp
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@ -164,6 +164,10 @@ static cl::opt<bool> EnableGVNHoist(
"enable-npm-gvn-hoist", cl::init(false), cl::Hidden,
cl::desc("Enable the GVN hoisting pass for the new PM (default = off)"));
static cl::opt<bool> EnableGVNSink(
"enable-npm-gvn-sink", cl::init(false), cl::Hidden,
cl::desc("Enable the GVN hoisting pass for the new PM (default = off)"));
static Regex DefaultAliasRegex(
"^(default|thinlto-pre-link|thinlto|lto-pre-link|lto)<(O[0123sz])>$");
@ -314,6 +318,12 @@ PassBuilder::buildFunctionSimplificationPipeline(OptimizationLevel Level,
if (EnableGVNHoist)
FPM.addPass(GVNHoistPass());
// Global value numbering based sinking.
if (EnableGVNSink) {
FPM.addPass(GVNSinkPass());
FPM.addPass(SimplifyCFGPass());
}
// Speculative execution if the target has divergent branches; otherwise nop.
FPM.addPass(SpeculativeExecutionPass());