[flang-commits] [flang] [flang] Use precompiled parsing headers (PR #130600)

[Kajetan Puchalski via flang-commits]

================
@@ -72,3 +72,11 @@ add_flang_library(flangFrontend
   clangBasic
   clangDriver
 )
+
+target_precompile_headers(flangFrontend PRIVATE
+  [["flang/Parser/parsing.h"]]
+  [["flang/Parser/parse-tree.h"]]
+  [["flang/Parser/dump-parse-tree.h"]]
+  [["flang/Lower/PFTBuilder.h"]]
+  [["flang/Lower/Bridge.h"]]
+)
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mrkajetanp wrote:

We could have Parser/, Lower/, Frontend/ etc. each have their own set of precompiled headers. There would be overlap between those for sure (i.e. we'd be precompiling the parse tree for each of them), but it could still improve the overall compile time.

https://github.com/llvm/llvm-project/pull/130600