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-rw-r--r--flang/lib/Frontend/CompilerInvocation.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/flang/lib/Frontend/CompilerInvocation.cpp b/flang/lib/Frontend/CompilerInvocation.cpp
index 5e71273..15b1e1e 100644
--- a/flang/lib/Frontend/CompilerInvocation.cpp
+++ b/flang/lib/Frontend/CompilerInvocation.cpp
@@ -246,6 +246,10 @@ static void parseCodeGenArgs(Fortran::frontend::CodeGenOptions &opts,
clang::driver::options::OPT_fno_loop_versioning, false))
opts.LoopVersioning = 1;
+ opts.UnrollLoops = args.hasFlag(clang::driver::options::OPT_funroll_loops,
+ clang::driver::options::OPT_fno_unroll_loops,
+ (opts.OptimizationLevel > 1));
+
opts.AliasAnalysis = opts.OptimizationLevel > 0;
// -mframe-pointer=none/non-leaf/all option.