clang/test/CodeGen/cfi-icall-normalize2.c

   1 // RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-icall -fsanitize-trap=cfi-icall -fsanitize-cfi-icall-experimental-normalize-integers -emit-llvm -o - %s | FileCheck %s
   2
   3 // Test that normalized type metadata for functions are emitted for cross-language CFI support with
   4 // other languages that can't represent and encode C/C++ integer types.
   5
   6 void foo(void (*fn)(int), int arg) {
   7     // CHECK-LABEL: define{{.*}}foo
   8     // CHECK-SAME: {{.*}}!type ![[TYPE1:[0-9]+]] !type !{{[0-9]+}}
   9     // CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32E.normalized")
  10     fn(arg);
  11 }
  12
  13 void bar(void (*fn)(int, int), int arg1, int arg2) {
  14     // CHECK-LABEL: define{{.*}}bar
  15     // CHECK-SAME: {{.*}}!type ![[TYPE2:[0-9]+]] !type !{{[0-9]+}}
  16     // CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32S_E.normalized")
  17     fn(arg1, arg2);
  18 }
  19
  20 void baz(void (*fn)(int, int, int), int arg1, int arg2, int arg3) {
  21     // CHECK-LABEL: define{{.*}}baz
  22     // CHECK-SAME: {{.*}}!type ![[TYPE3:[0-9]+]] !type !{{[0-9]+}}
  23     // CHECK: call i1 @llvm.type.test({{i8\*|ptr}} {{%f|%0}}, metadata !"_ZTSFvu3i32S_S_E.normalized")
  24     fn(arg1, arg2, arg3);
  25 }
  26
  27 // CHECK: ![[TYPE1]] = !{i64 0, !"_ZTSFvPFvu3i32ES_E.normalized"}
  28 // CHECK: ![[TYPE2]] = !{i64 0, !"_ZTSFvPFvu3i32S_ES_S_E.normalized"}
  29 // CHECK: ![[TYPE3]] = !{i64 0, !"_ZTSFvPFvu3i32S_S_ES_S_S_E.normalized"}