clang/test/C/drs/dr208.c

   1 /* RUN: %clang_cc1 -std=c99 -verify -emit-llvm -o -  %s | FileCheck %s
   2    RUN: %clang_cc1 -std=c11 -verify -emit-llvm -o -  %s | FileCheck %s
   3    RUN: %clang_cc1 -std=c17 -verify -emit-llvm -o -  %s | FileCheck %s
   4    RUN: %clang_cc1 -std=c2x -verify -emit-llvm -o -  %s | FileCheck %s
   5  */
   6
   7 /* WG14 DR208: yes
   8  * Ambiguity in initialization
   9  */
  10 int dr208_init(int);
  11 void dr208(void) {
  12   int a[2] = {
  13     dr208_init(0),      /* expected-note {{previous initialization with side effects is here (side effects will not occur at run time)}} */
  14     dr208_init(1),
  15     [0] = dr208_init(2) /* expected-warning {{initializer overrides prior initialization of this subobject}} */
  16   };
  17
  18   /* CHECK-NOT: call {{signext i32|i32}} @dr208_init(i32 noundef {{(signext )?}}0)
  19      CHECK-DAG: call {{signext i32|i32}} @dr208_init(i32 noundef {{(signext )?}}1)
  20      CHECK-DAG: call {{signext i32|i32}} @dr208_init(i32 noundef {{(signext )?}}2)
  21      CHECK-NOT: call {{signext i32|i32}} @dr208_init(i32 noundef {{(signext )?}}0)
  22    */
  23 }
  24