llvm-project/clang/test/CodeGen/semantic-interposition.c
Nikita Popov 532dc62b90 [OpaquePtrs][Clang] Add -no-opaque-pointers to tests (NFC)
This adds -no-opaque-pointers to clang tests whose output will
change when opaque pointers are enabled by default. This is
intended to be part of the migration approach described in
https://discourse.llvm.org/t/enabling-opaque-pointers-by-default/61322/9.

The patch has been produced by replacing %clang_cc1 with
%clang_cc1 -no-opaque-pointers for tests that fail with opaque
pointers enabled. Worth noting that this doesn't cover all tests,
there's a remaining ~40 tests not using %clang_cc1 that will need
a followup change.

Differential Revision: https://reviews.llvm.org/D123115
2022-04-07 12:09:47 +02:00

39 lines
1.7 KiB
C

/// -fno-semantic-interposition is the default and local aliases (via dso_local) are allowed.
// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -emit-llvm -mrelocation-model pic -pic-level 1 %s -o - | FileCheck %s --check-prefixes=CHECK,NOMETADATA
/// -fsemantic-interposition sets a module metadata.
// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -emit-llvm -mrelocation-model pic -pic-level 1 -fsemantic-interposition %s -o - | FileCheck %s --check-prefixes=PREEMPT,METADATA
/// Traditional half-baked behavior: interprocedural optimizations are allowed
/// but local aliases are not used.
// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-linux-gnu -emit-llvm -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition %s -o - | FileCheck %s --check-prefixes=PREEMPT,NOMETADATA
// CHECK: @var = global i32 0, align 4
// CHECK: @ext_var = external global i32, align 4
// CHECK: @ifunc = ifunc i32 (), bitcast (i8* ()* @ifunc_resolver to i32 ()* ()*)
// CHECK: define dso_local i32 @func()
// CHECK: declare i32 @ext()
// PREEMPT: @var = global i32 0, align 4
// PREEMPT: @ext_var = external global i32, align 4
// PREEMPT: @ifunc = ifunc i32 (), bitcast (i8* ()* @ifunc_resolver to i32 ()* ()*)
// PREEMPT: define i32 @func()
// PREEMPT: declare i32 @ext()
// METADATA: !{{[0-9]+}} = !{i32 1, !"SemanticInterposition", i32 1}
// NOMETADATA-NOT: "SemanticInterposition"
int var;
extern int ext_var;
int ifunc(void) __attribute__((ifunc("ifunc_resolver")));
int func(void) { return 0; }
int ext(void);
static void *ifunc_resolver(void) { return func; }
int foo(void) {
return var + ext_var + ifunc() + func() + ext();
}