[tvm] branch main updated: Check for presence of LLVM configuration. (#8293)

[tq...@apache.org]

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tqchen pushed a commit to branch main
in repository https://gitbox.apache.org/repos/asf/tvm.git


The following commit(s) were added to refs/heads/main by this push:
     new d5cc07e  Check for presence of LLVM configuration. (#8293)
d5cc07e is described below

commit d5cc07e9169abfb7b9c3a9989ab2274de4d8c55c
Author: Ramana Radhakrishnan <ra...@arm.com>
AuthorDate: Tue Jun 22 18:37:38 2021 +0100

    Check for presence of LLVM configuration. (#8293)
    
    LLVM is a pre-requisite for configuring Compute Library
    and offloading to Ethos-N NPU.
    
    Better to get the error message at build time rather
    than debugging SEGVs in testsuites.
---
 cmake/modules/contrib/ArmComputeLib.cmake | 4 ++++
 cmake/modules/contrib/EthosN.cmake        | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/cmake/modules/contrib/ArmComputeLib.cmake b/cmake/modules/contrib/ArmComputeLib.cmake
index 54ce917..9f6b9c1 100644
--- a/cmake/modules/contrib/ArmComputeLib.cmake
+++ b/cmake/modules/contrib/ArmComputeLib.cmake
@@ -27,6 +27,10 @@ if(USE_ARM_COMPUTE_LIB)
     if(NOT USE_ARM_COMPUTE_LIB_GRAPH_EXECUTOR)
         list(APPEND COMPILER_SRCS ${ACL_RUNTIME_MODULE})
     endif()
+    if(NOT DEFINED TVM_LLVM_VERSION)
+      message(FATAL_ERROR "Support for offloading to Compute library for the Arm Architecture requires LLVM Support")
+    endif()
+
     message(STATUS "Build with Arm Compute Library support...")
 endif()
 
diff --git a/cmake/modules/contrib/EthosN.cmake b/cmake/modules/contrib/EthosN.cmake
index 44d2a2a..6eb5271 100644
--- a/cmake/modules/contrib/EthosN.cmake
+++ b/cmake/modules/contrib/EthosN.cmake
@@ -20,6 +20,10 @@
 if(NOT USE_ETHOSN STREQUAL "OFF")
   find_ethosn(${USE_ETHOSN})
 
+  if(NOT DEFINED TVM_LLVM_VERSION)
+      message(FATAL_ERROR "Support for offloading to Ethos-N requires LLVM Support")
+  endif()
+
   if(NOT ETHOSN_FOUND)
     message(FATAL_ERROR "Cannot find Ethos-N, USE_ETHOSN=" ${USE_ETHOSN})