112 lines · cpp
1// RUN: %clang_cc1 -triple aarch64-none-linux-gnu -emit-llvm -o - %s | FileCheck %s2 3// CHECK: @_Z23used_before_default_defv = weak_odr ifunc void (), ptr @_Z23used_before_default_defv.resolver4// CHECK: @_Z22used_after_default_defv = weak_odr ifunc void (), ptr @_Z22used_after_default_defv.resolver5// CHECK-NOT: @_Z24used_before_default_declv = weak_odr ifunc void (), ptr @_Z24used_before_default_declv.resolver6// CHECK-NOT: @_Z23used_after_default_declv = weak_odr ifunc void (), ptr @_Z23used_after_default_declv.resolver7// CHECK-NOT: @_Z15used_no_defaultv = weak_odr ifunc void (), ptr @_Z15used_no_defaultv.resolver8// CHECK-NOT: @_Z19not_used_no_defaultv = weak_odr ifunc void (), ptr @_Z19not_used_no_defaultv.resolver9// CHECK: @_Z21not_used_with_defaultv = weak_odr ifunc void (), ptr @_Z21not_used_with_defaultv.resolver10 11 12// Test that an ifunc is generated and used when the default13// version is defined after the first use of the function.14//15__attribute__((target_version("aes"))) void used_before_default_def(void) {}16// CHECK-LABEL: define dso_local void @_Z23used_before_default_defv._Maes(17//18void call_before_def(void) { used_before_default_def(); }19// CHECK-LABEL: define dso_local void @_Z15call_before_defv(20// CHECK: call void @_Z23used_before_default_defv()21//22__attribute__((target_version("default"))) void used_before_default_def(void) {}23// CHECK-LABEL: define dso_local void @_Z23used_before_default_defv.default(24//25// CHECK-NOT: declare void @_Z23used_before_default_defv(26 27 28// Test that an ifunc is generated and used when the default29// version is defined before the first use of the function.30//31__attribute__((target_version("aes"))) void used_after_default_def(void) {}32// CHECK-LABEL: define dso_local void @_Z22used_after_default_defv._Maes(33//34__attribute__((target_version("default"))) void used_after_default_def(void) {}35// CHECK-LABEL: define dso_local void @_Z22used_after_default_defv.default(36//37void call_after_def(void) { used_after_default_def(); }38// CHECK-LABEL: define dso_local void @_Z14call_after_defv(39// CHECK: call void @_Z22used_after_default_defv()40//41// CHECK-NOT: declare void @_Z22used_after_default_defv(42 43 44// Test that an unmagled declaration is generated and used when the45// default version is declared after the first use of the function.46//47__attribute__((target_version("aes"))) void used_before_default_decl(void) {}48// CHECK-LABEL: define dso_local void @_Z24used_before_default_declv._Maes(49//50void call_before_decl(void) { used_before_default_decl(); }51// CHECK-LABEL: define dso_local void @_Z16call_before_declv(52// CHECK: call void @_Z24used_before_default_declv()53//54__attribute__((target_version("default"))) void used_before_default_decl(void);55// CHECK: declare void @_Z24used_before_default_declv()56 57 58// Test that an unmagled declaration is generated and used when the59// default version is declared before the first use of the function.60//61__attribute__((target_version("aes"))) void used_after_default_decl(void) {}62// CHECK-LABEL: define dso_local void @_Z23used_after_default_declv._Maes(63//64__attribute__((target_version("default"))) void used_after_default_decl(void);65// CHECK: declare void @_Z23used_after_default_declv()66//67void call_after_decl(void) { used_after_default_decl(); }68// CHECK-LABEL: define dso_local void @_Z15call_after_declv(69// CHECK: call void @_Z23used_after_default_declv()70 71 72// Test that an unmagled declaration is generated and used when73// the default version is not present.74//75__attribute__((target_version("aes"))) void used_no_default(void) {}76// CHECK-LABEL: define dso_local void @_Z15used_no_defaultv._Maes(77//78void call_no_default(void) { used_no_default(); }79// CHECK-LABEL: define dso_local void @_Z15call_no_defaultv(80// CHECK: call void @_Z15used_no_defaultv()81//82// CHECK: declare void @_Z15used_no_defaultv()83 84 85// Test that neither an ifunc nor a declaration is generated if the default86// definition is missing since the versioned function is not used.87//88__attribute__((target_version("aes"))) void not_used_no_default(void) {}89// CHECK-LABEL: define dso_local void @_Z19not_used_no_defaultv._Maes(90//91// CHECK-NOT: declare void @_Z19not_used_no_defaultv(92 93 94// Test that an ifunc is generated if the default version is defined but not used.95//96__attribute__((target_version("aes"))) void not_used_with_default(void) {}97// CHECK-LABEL: define dso_local void @_Z21not_used_with_defaultv._Maes(98//99__attribute__((target_version("default"))) void not_used_with_default(void) {}100// CHECK-LABEL: define dso_local void @_Z21not_used_with_defaultv.default(101//102// CHECK-NOT: declare void @_Z21not_used_with_defaultv(103 104 105// CHECK: define weak_odr ptr @_Z23used_before_default_defv.resolver()106// CHECK: define weak_odr ptr @_Z22used_after_default_defv.resolver()107// CHECK-NOT: define weak_odr ptr @_Z24used_before_default_declv.resolver(108// CHECK-NOT: define weak_odr ptr @_Z23used_after_default_declv.resolver(109// CHECK-NOT: define weak_odr ptr @_Z15used_no_defaultv.resolver(110// CHECK-NOT: define weak_odr ptr @_Z19not_used_no_defaultv.resolver(111// CHECK: define weak_odr ptr @_Z21not_used_with_defaultv.resolver()112