[clang] [flang] [llvm] [polly] [Plugins] Pass options to a pass plugin in -load-pass-plugin (PR #226773)

[Alexis Engelke via llvm-commits]

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@@ -40,8 +40,11 @@ if config.llvm_polly_link_into_tools == '' or \
    config.llvm_polly_link_into_tools.lower() == 'false' or \
    config.llvm_polly_link_into_tools.lower() == 'notfound' or \
    config.llvm_polly_link_into_tools.lower() == 'llvm_polly_link_into_tools-notfound':
-    config.substitutions.append(('%loadNPMPolly', '-load-pass-plugin '
-                                 + config.polly_lib_dir + '/LLVMPolly at LLVM_SHLIBEXT@'
+    # -load registers Polly's options while opt parses the -polly-* options
+    # that follow; -load-pass-plugin registers its passes after parsing.
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aengelke wrote:

Tolerable as a temporary solution, but we also want to eventually remove -load... add a TODO at least.

https://github.com/llvm/llvm-project/pull/226773