https://github.com/qiongsiwu created https://github.com/llvm/llvm-project/pull/211402
This PR adds a test that exercises the async-scanning code path to sanity check that async-scanning generates identical results as TU scanning. --- <sub>Stack created with <a href="https://github.com/github/gh-stack";>GitHub Stacks CLI</a> • <a href="https://gh.io/stacks-feedback";>Give Feedback 💬</a></sub> >From c2977443dd1b5156092afce6189fad39da14a648 Mon Sep 17 00:00:00 2001 From: Qiongsi Wu <[email protected]> Date: Tue, 21 Jul 2026 14:02:51 -0700 Subject: [PATCH] Adding a test that exercies the async-scanning code path. --- clang/test/ClangScanDeps/modules-async-scan.c | 65 +++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 clang/test/ClangScanDeps/modules-async-scan.c diff --git a/clang/test/ClangScanDeps/modules-async-scan.c b/clang/test/ClangScanDeps/modules-async-scan.c new file mode 100644 index 0000000000000..f6dc3d15100b2 --- /dev/null +++ b/clang/test/ClangScanDeps/modules-async-scan.c @@ -0,0 +1,65 @@ +// Verify that dependency scanning produces identical results with and without +// -async-scan-modules so we exercise the async scan code path. + +// RUN: rm -rf %t +// RUN: split-file %s %t +// RUN: sed -e "s|DIR|%/t|g" %t/cdb.json.in > %t/cdb.json + +// RUN: clang-scan-deps -compilation-database %t/cdb.json -j 1 \ +// RUN: -format experimental-full -mode preprocess-dependency-directives \ +// RUN: > %t/sync.json +// RUN: clang-scan-deps -compilation-database %t/cdb.json -j 1 -async-scan-modules \ +// RUN: -format experimental-full -mode preprocess-dependency-directives \ +// RUN: > %t/async.json + +// RUN: diff -u %t/sync.json %t/async.json + +// Sanity-check that the scan computed the correct module graph. +// RUN: FileCheck %s < %t/sync.json +// CHECK-DAG: "name": "A" +// CHECK-DAG: "name": "B" +// CHECK-DAG: "name": "C" + +//--- cdb.json.in + +[{ + "directory": "DIR", + "command": "clang -c DIR/main.c -IDIR -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fimplicit-module-maps", + "file": "DIR/main.c" +}] + +//--- module.modulemap + +module A { + header "a.h" +} + +module B { + header "b.h" +} + +module C { + header "c.h" +} + +//--- a.h + +#include "b.h" +void a(void); + +//--- b.h + +void b(void); + +//--- c.h + +void c(void); + +//--- main.c + +#include "a.h" +#include "c.h" +void m(void) { + a(); + c(); +} _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
