clang/test/CodeGen/annotations-builtin.c

   1 // RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
   2 // END.
   3
   4 static long long llfoo;
   5 static int intfoo;
   6 static short shortfoo;
   7 static char charfoo;
   8
   9 // CHECK: private unnamed_addr constant [13 x i8] {{.*}}annotation_a{{.*}} section "llvm.metadata"
  10 // CHECK-NOT: {{.*}}annotation_a{{.*}}
  11
  12 static int foo(int a) {
  13     return a + 1;
  14 }
  15
  16 int main(int argc, char **argv) {
  17     char barray[16];
  18     char *b = (char *) __builtin_annotation((int)barray, "annotation_a");
  19 // CHECK: ptrtoint ptr {{.*}} to i32
  20 // CHECK-NEXT: call i32 @llvm.annotation.i32
  21 // CHECK: inttoptr {{.*}} to ptr
  22
  23     int call = __builtin_annotation(foo(argc), "annotation_a");
  24 // CHECK: call {{.*}} @foo
  25 // CHECK: call i32 @llvm.annotation.i32
  26
  27     long long lla = __builtin_annotation(llfoo, "annotation_a");
  28 // CHECK: call i64 @llvm.annotation.i64
  29
  30     int inta = __builtin_annotation(intfoo, "annotation_a");
  31 // CHECK: load i32, ptr @intfoo
  32 // CHECK-NEXT: call i32 @llvm.annotation.i32
  33 // CHECK-NEXT: store
  34
  35     short shorta =  __builtin_annotation(shortfoo, "annotation_a");
  36 // CHECK: call i16 @llvm.annotation.i16
  37
  38     char chara = __builtin_annotation(charfoo, "annotation_a");
  39 // CHECK: call i8 @llvm.annotation.i8
  40
  41     char **arg = (char**) __builtin_annotation((int) argv, "annotation_a");
  42 // CHECK: ptrtoint ptr {{.*}} to
  43 // CHECK: call i32 @llvm.annotation.i32
  44 // CHECK: inttoptr {{.*}} to ptr
  45     return 0;
  46
  47     int after_return = __builtin_annotation(argc, "annotation_a");
  48 // CHECK-NOT: call i32 @llvm.annotation.i32
  49 }