================
@@ -0,0 +1,270 @@
+// C/C++ behavior of -mloadtime-comment-vars= :
+// codegen.cpp - mangled-name matching and what gets preserved
+// storage.cpp - storage-duration and scope diagnostics
+// diag.c - volatile / non-string-literal diagnostics (C)
+// init.cpp - constant-initialization / string-literal diagnostics (C++)
+// list.c - list parsing: whitespace after a comma, repeated names
+
+// RUN: rm -rf %t && split-file %s %t
+//
+// RUN: %clang_cc1 -std=c++17 -O2 -triple powerpc64-ibm-aix \
+// RUN:
-mloadtime-comment-vars=x,_ZN1N1xE,_ZN1N1qE,_ZN1NL3ptrE,_ZN1A1xE,_ZN1B3verE,_ZN1C4infoE
\
+// RUN: -emit-llvm -disable-llvm-passes -o - %t/codegen.cpp | FileCheck
%t/codegen.cpp
+//
+// RUN: %clang_cc1 -std=c++17 -triple powerpc64-ibm-aix \
+// RUN: -mloadtime-comment-vars=keep,_ZN1N2tlE,_ZL3stl,_ZN1A2tmE,_ZZ1fvE2fn \
+// RUN: -emit-llvm -verify -o - %t/storage.cpp | FileCheck %t/storage.cpp
+//
+// RUN: %clang_cc1 -triple powerpc64-ibm-aix \
+// RUN:
-mloadtime-comment-vars=vol_ptr,vol_char,vol_arr,tls_ptr,ind_ptr,const_arr \
+// RUN: -emit-llvm -verify -o - %t/diag.c | FileCheck %t/diag.c
+//
+// RUN: %clang_cc1 -std=c++17 -triple powerpc64-ibm-aix \
+// RUN: -mloadtime-comment-vars=p_ok,arr_ok,p_dyn,p_ind \
+// RUN: -emit-llvm -verify -o - %t/init.cpp | FileCheck %t/init.cpp
+//
+// The diagnostics are produced by Sema, so they are emitted even when no code
+// is generated.
+// RUN: %clang_cc1 -triple powerpc64-ibm-aix \
+// RUN:
-mloadtime-comment-vars=vol_ptr,vol_char,vol_arr,tls_ptr,ind_ptr,const_arr \
+// RUN: -fsyntax-only -verify %t/diag.c
+// RUN: %clang_cc1 -std=c++17 -triple powerpc64-ibm-aix \
+// RUN: -mloadtime-comment-vars=p_ok,arr_ok,p_dyn,p_ind \
+// RUN: -fsyntax-only -verify %t/init.cpp
+//
+// RUN: %clang_cc1 -triple powerpc64-ibm-aix \
+// RUN: "-mloadtime-comment-vars=foo, bar" \
+// RUN: -emit-llvm -o - %t/list.c | FileCheck %t/list.c --check-prefix=SPACE
+//
+// RUN: %clang_cc1 -triple powerpc64-ibm-aix \
+// RUN: -mloadtime-comment-vars=foo,foo \
+// RUN: -emit-llvm -o - %t/list.c | FileCheck %t/list.c --check-prefix=DUP
+
+//--- codegen.cpp
+// Names are matched against mangled IR symbol names.
+// C++ variables use Itanium ABI mangling; C/file-scope statics keep their
+// source name.
+//
+// Mangled names used here:
+// x -> x (file-scope, no mangling)
+// N::x -> _ZN1N1xE
+// N::q -> _ZN1N1qE
+// N::ptr -> _ZN1NL3ptrE (static, internal linkage)
+// A::x -> _ZN1A1xE
+// B::ver -> _ZN1B3verE
+// C::info -> _ZN1C4infoE (declared only, no definition — skipped)
+
+// 1. File-scope array "x" — no mangling in C++, IR name == source name.
+char x[] = "@(#) global x";
+
+namespace N {
+char x[] = "@(#) ns x";
----------------
tonykuttai wrote:
Right, removed N::q. It was a left over from when we used the un-mangled names
to match.
https://github.com/llvm/llvm-project/pull/187986
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