clang/test/CoverageMapping/statement-expression.c

   1 // RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name statement-expression.c %s
   2
   3 // No crash for the following examples, where GNU Statement Expression extension
   4 // could introduce region terminators (break, goto etc) before implicit
   5 // initializers in a struct or an array.
   6 // See https://github.com/llvm/llvm-project/pull/89564
   7
   8 struct Foo {
   9   int field1;
  10   int field2;
  11 };
  12
  13 void f1(void) {
  14   struct Foo foo = {
  15     .field1 = ({
  16       switch (0) {
  17       case 0:
  18         break; // A region terminator
  19       }
  20       0;
  21     }),
  22     // ImplicitValueInitExpr introduced here for .field2
  23   };
  24 }
  25
  26 void f2(void) {
  27   int arr[3] = {
  28     [0] = ({
  29         goto L0; // A region terminator
  30 L0:
  31       0;
  32     }),
  33     // ImplicitValueInitExpr introduced here for subscript [1]
  34     [2] = 0,
  35   };
  36 }