cconvey commented on code in PR #11189:
URL: https://github.com/apache/tvm/pull/11189#discussion_r864022510
##########
CMakeLists.txt:
##########
@@ -509,6 +510,103 @@ set(LIBINFO_FILE
${CMAKE_CURRENT_LIST_DIR}/src/support/libinfo.cc)
add_lib_info(${LIBINFO_FILE})
list(REMOVE_ITEM COMPILER_SRCS ${LIBINFO_FILE})
+# Caches the build.
+# Note that ccache-3.x doesn't support nvcc well, so CUDA kernels may never
hit the cache and still
+# need to be re-compiled every time. Using ccache 4.0+ can resolve this issue.
+#
+# NOTE: CMAKE_C[XX]_COMPILER_LAUNCHER only affects build targets that we add
*later*.
+# So we want this logic to appear towards the top of thet this CMakeLists.txt
file.
+if(USE_CCACHE) # True for AUTO, ON, /path/to/ccache
+
+
#-------------------------------------------------------------------------------------------------
+ # Determine which requested policy.
Review Comment:
Clearly written before my second cup of coffee. Needs rewording.
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