Files
clang-p2996/clang/test/ClangScanDeps/strip-visibility.c
Juergen Ributzka d3b75c4750 [clang] Make -fvisibility={} and -ftype-visibility={} benign options. (#71985)
Both options do not affect the AST content that is serialized into the PCM. This
commit includes the following changes:
    
1.) Mark `-fvisibility={}` and `-ftype-visibility={}` as benign options.That
     means they are no longer considered part of the module hash, which can
     reduce the number of module variants.
    
2.) Add a test to verify the generated LLVM IR is not affected by the default
     visibiliy mode in the module.

3.) Add a test to clang-scan-deps to ensure only one module is build, even if
      the above mentioned options are used.
    
This fixes rdar://118246054.
2023-11-16 08:41:20 -08:00

60 lines
1.6 KiB
C

// RUN: rm -rf %t
// RUN: split-file %s %t
// RUN: sed -e "s|DIR|%/t|g" %t/cdb.json.template > %t/cdb.json
// RUN: clang-scan-deps -compilation-database %t/cdb.json -format experimental-full -mode preprocess-dependency-directives > %t/result.txt
// RUN: FileCheck %s -input-file %t/result.txt
// Verify that there's a single version of module A.
// CHECK: "modules": [
// CHECK-NEXT: {
// CHECK: "command-line": [
// CHECK-NOT: "-fvisibility="
// CHECK-NOT: "-ftype-visibility="
// CHECK: ]
// CHECK: "name": "A"
// CHECK: }
// CHECK-NOT: "name": "A"
// CHECK: "translation-units"
//--- cdb.json.template
[
{
"directory": "DIR",
"command": "clang -Imodules/A -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fimplicit-module-maps -fsyntax-only DIR/t1.c",
"file": "DIR/t1.c"
},
{
"directory": "DIR",
"command": "clang -Imodules/A -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fimplicit-module-maps -fvisibility=hidden -fsyntax-only DIR/t2.c",
"file": "DIR/t2.c"
},
{
"directory": "DIR",
"command": "clang -Imodules/A -fmodules -fmodules-cache-path=DIR/module-cache -fimplicit-modules -fimplicit-module-maps -fvisibility=hidden -fvisibility-ms-compat -fsyntax-only DIR/t3.c",
"file": "DIR/t3.c"
}
]
//--- modules/A/module.modulemap
module A {
umbrella header "A.h"
}
//--- modules/A/A.h
typedef int A_t;
extern int a(void);
//--- t1.c
#include "A.h"
//--- t2.c
#include "A.h"
//--- t3.c
#include "A.h"