+static bool parseCGSCCPassPipeline(CGSCCPassManager &CGPM,
+ StringRef &PipelineText,
+ bool VerifyEachPass) {
+ for (;;) {
+ // Parse nested pass managers by recursing.
+ if (PipelineText.startswith("cgscc(")) {
+ CGSCCPassManager NestedCGPM;
+
+ // Parse the inner pipeline into the nested manager.
+ PipelineText = PipelineText.substr(strlen("cgscc("));
+ if (!parseCGSCCPassPipeline(NestedCGPM, PipelineText, VerifyEachPass) ||
+ PipelineText.empty())
+ return false;
+ assert(PipelineText[0] == ')');
+ PipelineText = PipelineText.substr(1);
+
+ // Add the nested pass manager with the appropriate adaptor.
+ CGPM.addPass(std::move(NestedCGPM));
+ } else if (PipelineText.startswith("function(")) {
+ FunctionPassManager NestedFPM;
+
+ // Parse the inner pipeline inte the nested manager.
+ PipelineText = PipelineText.substr(strlen("function("));
+ if (!parseFunctionPassPipeline(NestedFPM, PipelineText, VerifyEachPass) ||
+ PipelineText.empty())
+ return false;
+ assert(PipelineText[0] == ')');
+ PipelineText = PipelineText.substr(1);
+
+ // Add the nested pass manager with the appropriate adaptor.
+ CGPM.addPass(createCGSCCToFunctionPassAdaptor(std::move(NestedFPM)));
+ } else {
+ // Otherwise try to parse a pass name.
+ size_t End = PipelineText.find_first_of(",)");
+ if (!parseCGSCCPassName(CGPM, PipelineText.substr(0, End)))
+ return false;
+ // FIXME: No verifier support for CGSCC passes!
+
+ PipelineText = PipelineText.substr(End);
+ }
+
+ if (PipelineText.empty() || PipelineText[0] == ')')
+ return true;
+
+ assert(PipelineText[0] == ',');
+ PipelineText = PipelineText.substr(1);
+ }
+}
+