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[ARM] ParallelDSP: add option to enable/disable the pass

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Differential Revision: https://reviews.llvm.org/D50511

llvm-svn: 339645
This commit is contained in:
Sjoerd Meijer 2018-08-14 07:43:49 +00:00
parent 9bb4ddcda5
commit e5a87c27dd
1 changed files with 6 additions and 0 deletions
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6
lib/Target/ARM/ARMParallelDSP.cpp
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@ -42,6 +42,10 @@ using namespace PatternMatch;
STATISTIC(NumSMLAD , "Number of smlad instructions generated");
static cl::opt<bool>
DisableParallelDSP("disable-arm-parallel-dsp", cl::Hidden, cl::init(false),
cl::desc("Disable the ARM Parallel DSP pass"));
namespace {
struct OpChain;
struct BinOpChain;
@ -149,6 +153,8 @@ namespace {
}
bool runOnLoop(Loop *TheLoop, LPPassManager &) override {
if (DisableParallelDSP)
return false;
L = TheLoop;
SE = &getAnalysis<ScalarEvolutionWrapperPass>().getSE();
AA = &getAnalysis<AAResultsWrapperPass>().getAAResults();