Auto merge of #62592 - nikic:actually-update-llvm, r=alexcrichton

Update to LLVM 9 trunk

Following the preparatory changes in #62474, this updates the LLVM submodule to https://github.com/rust-lang/llvm-project/tree/rustc/9.0-2019-07-12 and:

 * Changes the LLVM Rust bindings to account for the new SubtargetSubTypeKV.
 * Adjusts a codegen test for the new form of the byval attribute that takes a type.
 * Makes a PGO codegen test more liberal with regard to order and linkage.
 * Builds InstrProfilingPlatformWindows.c as part of libprofiler_builtins.
 * Moves registration of additional passes (in particular sanitizers) to the end of the module pass manager.
 * Disables LLDB on builders.

r? @alexcrichton

1 files changed, 21 insertions, 4 deletions

diff --git a/src/rustllvm/PassWrapper.cpp b/src/rustllvm/PassWrapper.cpp
index cea88f14dcc..7d20086d9a2 100644
--- a/src/rustllvm/PassWrapper.cpp
+++ b/src/rustllvm/PassWrapper.cpp
@@ -99,6 +99,23 @@ void LLVMRustPassManagerBuilderPopulateThinLTOPassManager(
   unwrap(PMBR)->populateThinLTOPassManager(*unwrap(PMR));
 }
 
+extern "C"
+void LLVMRustAddLastExtensionPasses(
+    LLVMPassManagerBuilderRef PMBR, LLVMPassRef *Passes, size_t NumPasses) {
+  auto AddExtensionPasses = [Passes, NumPasses](
+      const PassManagerBuilder &Builder, PassManagerBase &PM) {
+    for (size_t I = 0; I < NumPasses; I++) {
+      PM.add(unwrap(Passes[I]));
+    }
+  };
+  // Add the passes to both of the pre-finalization extension points,
+  // so they are run for optimized and non-optimized builds.
+  unwrap(PMBR)->addExtension(PassManagerBuilder::EP_OptimizerLast,
+                             AddExtensionPasses);
+  unwrap(PMBR)->addExtension(PassManagerBuilder::EP_EnabledOnOptLevel0,
+                             AddExtensionPasses);
+}
+
 #ifdef LLVM_COMPONENT_X86
 #define SUBTARGET_X86 SUBTARGET(X86)
 #else
@@ -266,8 +283,8 @@ static Optional<Reloc::Model> fromRust(LLVMRustRelocMode RustReloc) {
 
 #ifdef LLVM_RUSTLLVM
 /// getLongestEntryLength - Return the length of the longest entry in the table.
-///
-static size_t getLongestEntryLength(ArrayRef<SubtargetFeatureKV> Table) {
+template<typename KV>
+static size_t getLongestEntryLength(ArrayRef<KV> Table) {
   size_t MaxLen = 0;
   for (auto &I : Table)
     MaxLen = std::max(MaxLen, std::strlen(I.Key));
@@ -279,7 +296,7 @@ extern "C" void LLVMRustPrintTargetCPUs(LLVMTargetMachineRef TM) {
   const MCSubtargetInfo *MCInfo = Target->getMCSubtargetInfo();
   const Triple::ArchType HostArch = Triple(sys::getProcessTriple()).getArch();
   const Triple::ArchType TargetArch = Target->getTargetTriple().getArch();
-  const ArrayRef<SubtargetFeatureKV> CPUTable = MCInfo->getCPUTable();
+  const ArrayRef<SubtargetSubTypeKV> CPUTable = MCInfo->getCPUTable();
   unsigned MaxCPULen = getLongestEntryLength(CPUTable);
 
   printf("Available CPUs for this target:\n");
@@ -289,7 +306,7 @@ extern "C" void LLVMRustPrintTargetCPUs(LLVMTargetMachineRef TM) {
       MaxCPULen, "native", (int)HostCPU.size(), HostCPU.data());
   }
   for (auto &CPU : CPUTable)
-    printf("    %-*s - %s.\n", MaxCPULen, CPU.Key, CPU.Desc);
+    printf("    %-*s\n", MaxCPULen, CPU.Key);
   printf("\n");
 }