clang/test/CodeGen/debug-info-block-out-return.c

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -debug-info-kind=limited -fblocks -emit-llvm -o - %s | FileCheck %s
   2
   3 // Check that arg numbering is not affected by LLVM IR argument numbering -
   4 // since the latter is affected by return-by-out-parameter ABI requirements
   5
   6 // 1 for the argument number (1 indexed), 2 for the line number
   7 // 16777218 == 1 << 24 | 2
   8 // 33554434 == 2 << 24 | 2
   9 // This explains the two magic numbers below, testing that these two arguments
  10 // are numbered correctly. If they are not numbered correctly they may appear
  11 // out of order or not at all (the latter would occur if they were both assigned
  12 // the same argument number by mistake).
  13
  14 // CHECK: !DILocalVariable(name: ".block_descriptor", arg: 1,{{.*}}line: 2,
  15 // CHECK: !DILocalVariable(name: "param", arg: 2,{{.*}}line: 2,
  16
  17 // Line directive so we don't have to worry about how many lines precede the
  18 // test code (as the line number is mangled in with the argument number as shown
  19 // above)
  20 #line 1
  21 typedef struct { int array[12]; } BigStruct_t;
  22 BigStruct_t (^a)(int) = ^(int param) {
  23     BigStruct_t b;
  24     return b;
  25 };