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lib/amdgcn/bitcode is not among the default bitcode dirs of clang
Add --rocm-device-lib-path to the clang argument
Excerpt from https://salsa.debian.org/rocm-team/rocm-device-libs/-/blob/d2014eed680ccce5f9bd61ff4fc28a89682575f3/debian/patches/cmake-amdgcn-bitcode.patch
==============================================
--- rocm-device-libs.orig/test/constant_folding/RunConstantFoldTest.cmake
+++ rocm-device-libs/test/constant_folding/RunConstantFoldTest.cmake
@@ -16,6 +16,7 @@
-target amdgcn-amd-amdhsa -mcpu=${TEST_CPU}
-Xclang -finclude-default-header
--rocm-path=${BINARY_DIR}
+ --rocm-device-lib-path=${AMDGCN_BITCODES}
-mllvm -amdgpu-simplify-libcall=0
-o ${OUTPUT_FILE} ${INPUT_FILE}
RESULT_VARIABLE CLANG_RESULT
--- rocm-device-libs.orig/test/constant_folding/CMakeLists.txt
+++ rocm-device-libs/test/constant_folding/CMakeLists.txt
@@ -30,6 +30,7 @@
-DFILECHECK_BIN=${FILECHECK_BIN}
-DOUTPUT_FILE=output.${name}.ll
-DINPUT_FILE=${CMAKE_CURRENT_SOURCE_DIR}/${name}.cl
+ -DAMDGCN_BITCODES=${PROJECT_BINARY_DIR}/lib/amdgcn/bitcode
-DTEST_CPU=gfx900
-P ${CMAKE_CURRENT_SOURCE_DIR}/RunConstantFoldTest.cmake)
endfunction()
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