sys-devel/llvm/files/llvm-9.0-no-cgprofile.patch

This patch makes llvm not generate .cgprofile entries when we do not use integrated-as.

CGProfilePass is run by default in certain new pass manager optimization pipeline.
Assemblers other than llvm as (such as gnu as) cannot recognize the .cgprofile entries
generated and emitted from this pass, causing build time error.

Upstream patch is https://reviews.llvm.org/D62626

diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp
index 5620a543438..099eb769ca5 100644
--- a/clang/lib/Driver/ToolChains/Clang.cpp
+++ b/clang/lib/Driver/ToolChains/Clang.cpp
@@ -3995,8 +3995,11 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
       Args.hasArg(options::OPT_dA))
     CmdArgs.push_back("-masm-verbose");
 
-  if (!TC.useIntegratedAs())
+  if (!TC.useIntegratedAs()) {
     CmdArgs.push_back("-no-integrated-as");
+    CmdArgs.push_back("-mllvm");
+    CmdArgs.push_back("-enable-call-graph-profile-sort=false");
+  }
 
   if (Args.hasArg(options::OPT_fdebug_pass_structure)) {
     CmdArgs.push_back("-mdebug-pass");
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
index c5fd68299eb..4c6e15eeeb9 100644
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -212,6 +212,10 @@ static cl::opt<bool>
     EnableCHR("enable-chr-npm", cl::init(true), cl::Hidden,
               cl::desc("Enable control height reduction optimization (CHR)"));
 
+static cl::opt<bool> EnableCallGraphProfileSort(
+    "enable-call-graph-profile-sort", cl::init(true), cl::Hidden,
+    cl::desc("Enable call graph profile pass for the new PM (default = on)"));
+
 extern cl::opt<bool> EnableHotColdSplit;
 extern cl::opt<bool> EnableOrderFileInstrumentation;
 
@@ -939,7 +943,8 @@ ModulePassManager PassBuilder::buildModuleOptimizationPipeline(
   // Add the core optimizing pipeline.
   MPM.addPass(createModuleToFunctionPassAdaptor(std::move(OptimizePM)));
 
-  MPM.addPass(CGProfilePass());
+  if (EnableCallGraphProfileSort)
+    MPM.addPass(CGProfilePass());
 
   // Now we need to do some global optimization transforms.
   // FIXME: It would seem like these should come first in the optimization