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[Libomptarget] Reintroduce host architecture checks for device RTL

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A previous patch removed the need to set the auxiliary architecture as
it was no longer needed for the clang invocation after moving to using
the clang frontend. However, this had a second use of preventing
unsupported host architectures from building the device runtime. This
caused failures when trying to build on 32-bit hosts for example.

Fixes #56699

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D130509
This commit is contained in:
Joseph Huber 2022-07-25 15:16:06 -04:00
parent 1850a7a9ca
commit 8c626fc0c8
1 changed files with 6 additions and 0 deletions
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6
openmp/libomptarget/DeviceRTL/CMakeLists.txt
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@ -18,6 +18,12 @@ if (NOT LIBOMPTARGET_BUILD_DEVICERTL_BCLIB)
return()
endif()
# Check to ensure the host system is a supported host architecture.
if(NOT ${CMAKE_SIZEOF_VOID_P} EQUAL "8")
libomptarget_say("Not building DeviceRTL: Runtime does not support 32-bit hosts")
return()
endif()
if (LLVM_DIR)
# Builds that use pre-installed LLVM have LLVM_DIR set.
# A standalone or LLVM_ENABLE_RUNTIMES=openmp build takes this route