[Openmp-commits] [PATCH] D142369: [Libomptarget] Emit a special warning when no images are found

[Joseph Huber via Phabricator via Openmp-commits]

jhuber6 updated this revision to Diff 506095.
jhuber6 added a comment.

Updating, error message now looks like this.

  Libomptarget error: Consult https://openmp.llvm.org/design/Runtimes.html for debugging options.
  Libomptarget error: No images with a supported architecture found (sm_70)
  Libomptarget error: Source location information not present. Compile with -g or -gline-tables-only.
  Libomptarget fatal error 1: failure of target construct while offloading is mandatory
  [1]    159574 IOT instruction (core dumped)  OMP_TARGET_OFFLOAD=mandatory ./a.out


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142369/new/

https://reviews.llvm.org/D142369

Files:
  openmp/libomptarget/src/omptarget.cpp


Index: openmp/libomptarget/src/omptarget.cpp
===================================================================
--- openmp/libomptarget/src/omptarget.cpp
+++ openmp/libomptarget/src/omptarget.cpp
@@ -274,6 +274,16 @@
         FAILURE_MESSAGE("Consult https://openmp.llvm.org/design/Runtimes.html "
                         "for debugging options.\n");
 
+      if (PM->RTLs.UsedRTLs.empty()) {
+        llvm::SmallVector<llvm::StringRef> Archs;
+        llvm::transform(PM->Images, std::back_inserter(Archs),
+                        [](const auto &x) {
+                          return !x.second.Arch ? "empty" : x.second.Arch;
+                        });
+        FAILURE_MESSAGE("No images with a supported architecture. Found ");
+        fprintf(stderr, "(%s)\n", llvm::join(Archs, ",").c_str());
+      }
+
       SourceInfo Info(Loc);
       if (Info.isAvailible())
         fprintf(stderr, "%s:%d:%d: ", Info.getFilename(), Info.getLine(),


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