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Originally committed in r349333, reverted in r349353. GCC emitted these unconditionally on/before 4.4/March 2012 Clang emitted these unconditionally on/before 3.5/March 2014 This improves performance when parsing CUs (especially those using split DWARF) that contain no code ranges (such as the mini CUs that may be created by ThinLTO importing - though generally they should be/are avoided, especially for Split DWARF because it produces a lot of very small CUs, which don't scale well in a bunch of other ways too (including size)). The revert was due to a (Google internal) test that had some checked in old object files missing DW_AT_ranges. That's since been fixed. llvm-svn: 349968
23 lines
835 B
Plaintext
23 lines
835 B
Plaintext
RUN: rm -rf %t && mkdir -p %t
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RUN: cd %t
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RUN: cp %p/Inputs/split-dwarf-no-skel-address.dwo %t
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RUN: echo "%p/Inputs/split-dwarf-no-skel-address.o 0x4" > %t.input
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RUN: llvm-symbolizer --functions=linkage --inlining --demangle=false \
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RUN: --default-arch=i386 < %t.input | FileCheck %s
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Built from the following source:
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void f1();
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__attribute__((always_inline)) inline void f2() { f1(); }
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void f3() { f2(); }
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Compiled to assembly with clang, modified the skeleton CU to remove the
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high/low pc (& update the CU length field and abbrev to match) & then
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compile/objcopy to make the .o and .dwo.
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Ensure that the f2 inlined frame is not included - it's inefficient to have to
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go and load all the debug info and search for the address ranges, so assume
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that a lack of ranges on the CU means the CU covers no addresses.
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CHECK-NOT: _Z2f2v
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