DWARF parser: <DW_OP_piece for offset 4 but top of stack is of size 8>

Bugzilla Link	39798
Version	7.0
OS	All
Attachments	testcase
Reporter	LLVM Bugzilla Contributor

Extended Description

(lldb) b main Breakpoint 1: where = a.out`main + 4 at a-prepro.c:2303:5, address = 0x0000000100000b44 (lldb) r Process 81971 launched: '/Users/davide/work/llvm-project-20170507/build-rel/bin/a.out' (x86_64) a.out was compiled with optimization - stepping may behave oddly; variables may not be available. Process 81971 stopped

• thread #​1, queue = 'com.apple.main-thread', stop reason = breakpoint 1.1 frame #​0: 0x0000000100000b44 a.out`main(argc=1, argv=0x00007ffeefbffaf0) at a-prepro.c:2303:5 [opt] 2300 int print_hash_value = 0; 2301 if (argc == 2 && strcmp(argv[1], "1") == 0) print_hash_value = 1; 2302 platform_main_begin(); -> 2303 func_1(); 2304 for (i = 0; i < 8; i++) 2305 { 2306 csmith_sink_ = g_8[i]; (lldb) frame var g_88 (S0 [5]) g_88 = <DW_OP_piece for offset 4 but top of stack is of size 108>

(lldb) p g_88 error: Couldn't materialize: couldn't get the value of variable g_88: DW_OP_piece for offset 4 but top of stack is of size 108 error: errored out in DoExecute, couldn't PrepareToExecuteJITExpression

$ ./clang a-prepro.c -g -O1 -Wno-everything