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[opt] Add helpful alternatives for -analyze under new PM 

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D96449
This commit is contained in:
Arthur Eubanks 2021-02-10 13:31:58 -08:00
parent b6051f52ac
commit cee9869c4e
1 changed files with 4 additions and 1 deletions
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5
llvm/tools/opt/opt.cpp
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@ -762,7 +762,10 @@ int main(int argc, char **argv) {
if ((EnableNewPassManager && !shouldForceLegacyPM()) ||
PassPipeline.getNumOccurrences() > 0) {
if (AnalyzeOnly) {
errs() << "Cannot specify -analyze under new pass manager\n";
errs() << "Cannot specify -analyze under new pass manager, either "
"specify '-enable-new-pm=0', or use the corresponding new pass "
"manager pass, e.g. '-passes=print<scalar-evolution>'. For a "
"full list of passes, see the '--print-passes' flag.\n";
return 1;
}
if (PassPipeline.getNumOccurrences() > 0 && PassList.size() > 0) {