| // RUN: %clang_cc1 -triple aarch64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| |
| // CHECK: @used_before_default_def = weak_odr ifunc void (), ptr @used_before_default_def.resolver |
| // CHECK: @used_after_default_def = weak_odr ifunc void (), ptr @used_after_default_def.resolver |
| // CHECK-NOT: @used_before_default_decl = weak_odr ifunc void (), ptr @used_before_default_decl.resolver |
| // CHECK-NOT: @used_after_default_decl = weak_odr ifunc void (), ptr @used_after_default_decl.resolver |
| // CHECK-NOT: @used_no_default = weak_odr ifunc void (), ptr @used_no_default.resolver |
| // CHECK-NOT: @not_used_no_default = weak_odr ifunc void (), ptr @not_used_no_default.resolver |
| // CHECK: @not_used_with_default = weak_odr ifunc void (), ptr @not_used_with_default.resolver |
| |
| |
| // Test that an ifunc is generated and used when the default |
| // version is defined after the first use of the function. |
| // |
| __attribute__((target_version("aes"))) void used_before_default_def(void) {} |
| // CHECK-LABEL: define dso_local void @used_before_default_def._Maes( |
| // |
| void call_before_def(void) { used_before_default_def(); } |
| // CHECK-LABEL: define dso_local void @call_before_def( |
| // CHECK: call void @used_before_default_def() |
| // |
| __attribute__((target_version("default"))) void used_before_default_def(void) {} |
| // CHECK-LABEL: define dso_local void @used_before_default_def.default( |
| // |
| // CHECK-NOT: declare void @used_before_default_def( |
| |
| |
| // Test that an ifunc is generated and used when the default |
| // version is defined before the first use of the function. |
| // |
| __attribute__((target_version("aes"))) void used_after_default_def(void) {} |
| // CHECK-LABEL: define dso_local void @used_after_default_def._Maes( |
| // |
| __attribute__((target_version("default"))) void used_after_default_def(void) {} |
| // CHECK-LABEL: define dso_local void @used_after_default_def.default( |
| // |
| void call_after_def(void) { used_after_default_def(); } |
| // CHECK-LABEL: define dso_local void @call_after_def( |
| // CHECK: call void @used_after_default_def() |
| // |
| // CHECK-NOT: declare void @used_after_default_def( |
| |
| |
| // Test that an unmagled declaration is generated and used when the |
| // default version is declared after the first use of the function. |
| // |
| __attribute__((target_version("aes"))) void used_before_default_decl(void) {} |
| // CHECK-LABEL: define dso_local void @used_before_default_decl._Maes( |
| // |
| void call_before_decl(void) { used_before_default_decl(); } |
| // CHECK-LABEL: define dso_local void @call_before_decl( |
| // CHECK: call void @used_before_default_decl() |
| // |
| __attribute__((target_version("default"))) void used_before_default_decl(void); |
| // CHECK: declare void @used_before_default_decl() |
| |
| |
| // Test that an unmagled declaration is generated and used when the |
| // default version is declared before the first use of the function. |
| // |
| __attribute__((target_version("aes"))) void used_after_default_decl(void) {} |
| // CHECK-LABEL: define dso_local void @used_after_default_decl._Maes( |
| // |
| __attribute__((target_version("default"))) void used_after_default_decl(void); |
| // CHECK: declare void @used_after_default_decl() |
| // |
| void call_after_decl(void) { used_after_default_decl(); } |
| // CHECK-LABEL: define dso_local void @call_after_decl( |
| // CHECK: call void @used_after_default_decl() |
| |
| |
| // Test that an unmagled declaration is generated and used when |
| // the default version is not present. |
| // |
| __attribute__((target_version("aes"))) void used_no_default(void) {} |
| // CHECK-LABEL: define dso_local void @used_no_default._Maes( |
| // |
| void call_no_default(void) { used_no_default(); } |
| // CHECK-LABEL: define dso_local void @call_no_default( |
| // CHECK: call void @used_no_default() |
| // |
| // CHECK: declare void @used_no_default() |
| |
| |
| // Test that neither an ifunc nor a declaration is generated if the default |
| // definition is missing since the versioned function is not used. |
| // |
| __attribute__((target_version("aes"))) void not_used_no_default(void) {} |
| // CHECK-LABEL: define dso_local void @not_used_no_default._Maes( |
| // |
| // CHECK-NOT: declare void @not_used_no_default( |
| |
| |
| // Test that an ifunc is generated if the default version is defined but not used. |
| // |
| __attribute__((target_version("aes"))) void not_used_with_default(void) {} |
| // CHECK-LABEL: define dso_local void @not_used_with_default._Maes( |
| // |
| __attribute__((target_version("default"))) void not_used_with_default(void) {} |
| // CHECK-LABEL: define dso_local void @not_used_with_default.default( |
| // |
| // CHECK-NOT: declare void @not_used_with_default( |
| |
| |
| // CHECK: define weak_odr ptr @used_before_default_def.resolver() |
| // CHECK: define weak_odr ptr @used_after_default_def.resolver() |
| // CHECK-NOT: define weak_odr ptr @used_before_default_decl.resolver( |
| // CHECK-NOT: define weak_odr ptr @used_after_default_decl.resolver( |
| // CHECK-NOT: define weak_odr ptr @used_no_default.resolver( |
| // CHECK-NOT: define weak_odr ptr @not_used_no_default.resolver( |
| // CHECK: define weak_odr ptr @not_used_with_default.resolver() |
