================
@@ -0,0 +1,60 @@
+// RUN: %clang_cc1 -O2 -triple powerpc-ibm-aix
-mloadtime-comment-vars=sccsid,version,build_number,same_copyright,active,not_defined_here
-emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
+// RUN: %clang_cc1 -O2 -triple powerpc64-ibm-aix
-mloadtime-comment-vars=sccsid,version,build_number,same_copyright,active,not_defined_here
-emit-llvm -disable-llvm-passes -o - %s | FileCheck %s
+
+// RUN: %clang_cc1 -O2 -triple x86_64-linux-gnu
-mloadtime-comment-vars=sccsid,version -emit-llvm -disable-llvm-passes -o - %s
| FileCheck %s --check-prefix=LINUX
+
+// 1. String pointer
+static char *sccsid = "@(#) sccsid Version 1.0";
+
+// 2. String array
+static char version[] = "@(#) Copyright Version 2.0";
+
+// 3. Const string (Not in CLI list, should NOT be emitted)
+static const char *copyright = "@(#) Copyright 2026";
+
+// 4. Integer (In CLI list but invalid type, should NOT be emitted)
+static int build_number = 12345;
+
+// 5. Struct (not in CLI list and invalid type, NOT emitted)
+struct build_info {
+ int major;
+ int minor;
+} static build_data = {1, 0};
+
+// 6. Pointer initialized with a string literal; forced into emission even
+// though it is never referenced.
+static const char *same_copyright = "@(#) same copyright";
+
+// 7. Variable already referenced (eager emission path)
+static char *active = "@(#) active string";
+void bar() { (void)active; }
+
+// 8. Variable listed but only declared (extern)
+extern char *not_defined_here;
+
+void foo() {}
+
+// CHECK-DAG: @[[ACTIVE:active]] = internal global ptr
@[[ACTIVE_STR:.str(\.[0-9]+)?]], align {{[0-9]+}}, !loadtime_comment
![[MD:[0-9]+]]
+// CHECK-DAG: @[[ACTIVE_STR]] = private unnamed_addr constant [19 x i8] c"@(#)
active string\00", align {{[0-9]+}}
+// CHECK-DAG: @sccsid = internal global ptr @[[SCCSID_STR:.str(\.[0-9]+)?]],
align {{[0-9]+}}, !loadtime_comment ![[MD]]
+// CHECK-DAG: @[[SCCSID_STR]] = private unnamed_addr constant [24 x i8] c"@(#)
sccsid Version 1.0\00", align {{[0-9]+}}
+// CHECK-DAG: @version = internal global [27 x i8] c"@(#) Copyright Version
2.0\00", align {{[0-9]+}}, !loadtime_comment ![[MD]]
+// CHECK-DAG: @same_copyright = internal global ptr
@[[SC_STR:.str(\.[0-9]+)?]], align {{[0-9]+}}, !loadtime_comment ![[MD]]
+// CHECK-DAG: @[[SC_STR]] = private unnamed_addr constant [{{[0-9]+}} x i8]
c"@(#) same copyright\00", align {{[0-9]+}}
+// CHECK: @llvm.compiler.used = appending global [4 x ptr]
+// CHECK-SAME: ptr @sccsid
+// CHECK-SAME: ptr @version
+// CHECK-SAME: ptr @same_copyright
+// CHECK-SAME: ptr @active
+// CHECK-SAME: section "llvm.metadata"
+
+// Ensure unrequested/invalid variables are not emitted
+// CHECK-NOT: @copyright
+// CHECK-NOT: @build_number
+// CHECK-NOT: @build_data
+// CHECK-NOT: @not_defined_here
+
+// LINUX-NOT: loadtime_comment
+// LINUX-NOT: @sccsid
+// LINUX-NOT: @version
----------------
tonykuttai wrote:
Not expected .On non-AIX since the `loadtimecommentvars` option is ignored and
not forwarded, the same_copyright is no longer force-emitted and otherwise
unreferenced. Updated the test to make it explicit: NOPRESERVE-NOT covers
sccsid, version, and same_copyright on the Linux output.
https://github.com/llvm/llvm-project/pull/187986
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