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      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 preceed 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 param) {
     23     BigStruct_t b;
     24     return b;
     25 };
     26