3ea5dff0ef
Pruning non-affecting module maps is useful even when passing module maps explicitly via `-fmodule-map-file=<path>`. For this situation, this patch reinstates the behavior we had prior to #87849. For the situation where the explicit module map file arguments were generated by the dependency scanner (which already pruned the non-affecting ones), this patch introduces new `-cc1` flag `-fno-modules-prune-non-affecting-module-map-files` that avoids the extra work.
63 lines
2.7 KiB
Mathematica
63 lines
2.7 KiB
Mathematica
// Check that the presence of non-affecting module map files does not affect the
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// contents of PCM files.
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// RUN: rm -rf %t && mkdir %t
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// RUN: split-file %s %t
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//--- a/module.modulemap
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module a {}
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//--- b/module.modulemap
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module b {}
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//--- c/module.modulemap
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module c { header "c.h" }
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//--- c/c.h
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@import b;
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//--- tu.m
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@import c;
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//--- explicit-mms-common-args.rsp
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-fmodule-map-file=b/module.modulemap -fmodule-map-file=c/module.modulemap -fmodules -fmodules-cache-path=cache -fdisable-module-hash -fsyntax-only tu.m
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//--- implicit-search-args.rsp
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-I a -I b -I c -fimplicit-module-maps -fmodules -fmodules-cache-path=cache -fdisable-module-hash -fsyntax-only tu.m
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//--- implicit-search-args.rsp-end
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// Test with explicit module map files.
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//
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// RUN: %clang_cc1 -working-directory %t @%t/explicit-mms-common-args.rsp
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// RUN: mv %t/cache %t/cache-explicit-no-a-prune
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// RUN: %clang_cc1 -working-directory %t @%t/explicit-mms-common-args.rsp -fno-modules-prune-non-affecting-module-map-files
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// RUN: mv %t/cache %t/cache-explicit-no-a-keep
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//
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// RUN: %clang_cc1 -working-directory %t -fmodule-map-file=a/module.modulemap @%t/explicit-mms-common-args.rsp
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// RUN: mv %t/cache %t/cache-explicit-a-prune
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// RUN: %clang_cc1 -working-directory %t -fmodule-map-file=a/module.modulemap @%t/explicit-mms-common-args.rsp -fno-modules-prune-non-affecting-module-map-files
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// RUN: mv %t/cache %t/cache-explicit-a-keep
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//
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// RUN: diff %t/cache-explicit-no-a-prune/c.pcm %t/cache-explicit-a-prune/c.pcm
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// RUN: not diff %t/cache-explicit-no-a-keep/c.pcm %t/cache-explicit-a-keep/c.pcm
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// Test with implicit module map search.
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//
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// RUN: %clang_cc1 -working-directory %t @%t/implicit-search-args.rsp
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// RUN: mv %t/cache %t/cache-implicit-no-a-prune
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// RUN: %clang_cc1 -working-directory %t @%t/implicit-search-args.rsp -fno-modules-prune-non-affecting-module-map-files
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// RUN: mv %t/cache %t/cache-implicit-no-a-keep
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//
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// FIXME: Instead of removing "a/module.modulemap" from the file system, we
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// could drop the "-I a" search path argument in combination with the
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// "-fmodules-skip-header-search-paths" flag. Unfortunately, that flag
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// does not prevent serialization of the search path usage bit vector,
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// making the files differ anyways.
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// RUN: rm %t/a/module.modulemap
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//
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// RUN: %clang_cc1 -working-directory %t @%t/implicit-search-args.rsp
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// RUN: mv %t/cache %t/cache-implicit-a-prune
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// RUN: %clang_cc1 -working-directory %t @%t/implicit-search-args.rsp -fno-modules-prune-non-affecting-module-map-files
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// RUN: mv %t/cache %t/cache-implicit-a-keep
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//
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// RUN: diff %t/cache-implicit-no-a-prune/c.pcm %t/cache-implicit-a-prune/c.pcm
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// RUN: not diff %t/cache-implicit-no-a-keep/c.pcm %t/cache-implicit-a-keep/c.pcm
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