67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// RUN: dsymutil --linker parallel --no-odr -f -y %p/../dummy-debug-map.map -oso-prepend-path \
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// RUN: %p/../../Inputs/dead-stripped -o - | llvm-dwarfdump - --debug-info | \
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// RUN: FileCheck %s --implicit-check-not \
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// RUN: "{{DW_AT_low_pc|DW_AT_high_pc|DW_AT_location|DW_TAG|NULL}}"
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//
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// RUN: dsymutil --linker parallel -f -y %p/../dummy-debug-map.map -oso-prepend-path \
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// RUN: %p/../../Inputs/dead-stripped -o - | llvm-dwarfdump - --debug-info | \
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// RUN: FileCheck %s --implicit-check-not \
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// RUN: "{{DW_AT_low_pc|DW_AT_high_pc|DW_AT_location|DW_TAG|NULL}}" \
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// RUN: --check-prefixes=CHECK-LLVM
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// The test was compiled with:
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// clang++ -O2 -g -c dead-strip.cpp -o 1.o
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// The goal of the test is to exercise dsymutil's behavior in presence of
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// functions/variables that have been dead-stripped by the linker but
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// that are still present in the linked debug info (in this case because
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// they have been DW_TAG_import'd in another namespace).
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// CHECK-LLVM: DW_TAG_compile_unit
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// CHECK-LLVM: DW_AT_name{{.*}}"__artificial_type_unit"
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// CHECK-LLVM: DW_TAG_namespace
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// CHECK-LLVM: DW_AT_name{{.*}}"N"
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// CHECK-LLVM: NULL
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//
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// CHECK-LLVM: DW_TAG_compile_unit
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// CHECK-LLVM: DW_AT_low_pc
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// CHECK-LLVM: DW_AT_high_pc
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// CHECK-LLVM: DW_TAG_base_type
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// CHECK-LLVM: DW_TAG_imported_module
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// CHECK-LLVM: DW_TAG_subprogram
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// CHECK-LLVM: DW_AT_low_pc
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// CHECK-LLVM: DW_AT_high_pc
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// CHECK-LLVM: DW_TAG_base_type
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// CHECK-LLVM: NULL
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// Everything in the N namespace below doesn't have a debug map entry, and
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// thus is considered dead (::foo() has a debug map entry, otherwise dsymutil
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// would just drop the CU altogether).
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// CHECK: DW_TAG_compile_unit
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// CHECK: DW_AT_low_pc
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// CHECK: DW_AT_high_pc
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// CHECK: DW_TAG_namespace
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namespace N {
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int blah = 42;
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__attribute__((always_inline)) int foo() { return blah; }
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int bar(unsigned i) {
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int val = foo();
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if (i)
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return val + bar(i-1);
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return foo();
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}
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}
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// CHECK: DW_TAG_base_type
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// CHECK: DW_TAG_imported_module
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// CHECK: DW_TAG_subprogram
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// CHECK: DW_AT_low_pc
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// CHECK: DW_AT_high_pc
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// CHECK: DW_TAG_base_type
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// CHECK: NULL
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using namespace N;
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void foo() {}
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