| // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -O2 -emit-llvm -o - %s | FileCheck %s |
| // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=thread -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN |
| // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=address -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN |
| // RUN: %clang_cc1 -triple i386-unknown-linux-gnu -fsanitize=memory -O2 -emit-llvm -o - %s | FileCheck %s --check-prefix=SAN |
| |
| int foo(int) __attribute__ ((ifunc("foo_ifunc"))); |
| |
| static int f1(int i) { |
| return i + 1; |
| } |
| |
| static int f2(int i) { |
| return i + 2; |
| } |
| |
| typedef int (*foo_t)(int); |
| |
| int global; |
| |
| static foo_t foo_ifunc(void) { |
| return global ? f1 : f2; |
| } |
| |
| int bar(void) { |
| return foo(1); |
| } |
| |
| extern void goo(void); |
| |
| void bar2(void) { |
| goo(); |
| } |
| |
| extern void goo(void) __attribute__ ((ifunc("goo_ifunc"))); |
| |
| void* goo_ifunc(void) { |
| return 0; |
| } |
| // CHECK: @foo = ifunc i32 (i32), ptr @foo_ifunc |
| // CHECK: @goo = ifunc void (), ptr @goo_ifunc |
| |
| // CHECK: call i32 @foo(i32 |
| // CHECK: call void @goo() |
| |
| // SAN: define internal nonnull ptr @foo_ifunc() #[[#FOO_IFUNC:]] { |
| |
| // SAN: define dso_local noalias ptr @goo_ifunc() #[[#GOO_IFUNC:]] { |
| |
| // SAN-DAG: attributes #[[#FOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}} |
| |
| // SAN-DAG: attributes #[[#GOO_IFUNC]] = {{{.*}} disable_sanitizer_instrumentation {{.*}} |
