1 // RUN: llvm-dsymutil -f -y %p/dummy-debug-map.map -oso-prepend-path %p/../Inputs/dead-stripped -o - | llvm-dwarfdump - -debug-dump=info | FileCheck %s 2 3 // The test was compiled with: 4 // clang++ -O2 -g -c dead-strip.cpp -o 1.o 5 6 // The goal of the test is to exercise dsymutil's behavior in presence of 7 // functions/variables that have been dead-stripped by the linker but 8 // that are still present in the linked debug info (in this case because 9 // they have been DW_TAG_import'd in another namespace). 10 11 // Everything in the N namespace bellow doesn't have a debug map entry, and 12 // thus is considered dead (::foo() has a debug map entry, otherwse dsymutil 13 // would just drop the CU altogether). 14 15 namespace N { 16 int blah = 42; 17 // This is actually a dsymutil-classic bug that we reproduced 18 // CHECK: DW_TAG_variable 19 // CHECK-NOT: DW_TAG 20 // CHECK: DW_AT_location 21 22 __attribute__((always_inline)) int foo() { return blah; } 23 // CHECK: DW_TAG_subprogram 24 // CHECK-NOT: DW_AT_low_pc 25 // CHECK-NOT: DW_AT_high_pc 26 // CHECK: DW_AT_frame_base 27 28 // CHECK: DW_TAG_subprogram 29 30 int bar(unsigned i) { 31 int val = foo(); 32 if (i) 33 return val + bar(i-1); 34 return foo(); 35 } 36 // CHECK: DW_TAG_subprogram 37 // CHECK-NOT: DW_AT_low_pc 38 // CHECK-NOT: DW_AT_high_pc 39 // CHECK: DW_AT_frame_base 40 // CHECK-NOT: DW_AT_location 41 // CHECK-NOT: DW_AT_low_pc 42 // CHECK-NOT: DW_AT_high_pc 43 44 } 45 // CHECK: TAG_imported_module 46 using namespace N; 47 48 void foo() {} 49
