Upgrade cmake_minimum_required to 3.20.0 to align with llvm-project main branch (#574)

wenju-he · web-flow · commit 4f9f95fc8b69 · 2025-08-28T11:58:14.000+08:00
llvm-project already upgraded from 3.13.4 to 3.20.0 in LLVM 17.0.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.13.4)
+cmake_minimum_required(VERSION 3.20.0)
 
 if(NOT DEFINED OPENCL_CLANG_BUILD_EXTERNAL)
   # check if we build inside llvm or not

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-cmake_minimum_required(VERSION 3.13.4)`
	`1`	`+cmake_minimum_required(VERSION 3.20.0)`
`2`	`2`
`3`	`3`	`if(NOT DEFINED OPENCL_CLANG_BUILD_EXTERNAL)`
`4`	`4`	`# check if we build inside llvm or not`