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r342631 expanded bitc::METADATA_LOCATION by one element. The bitcode metadata loader was changed in a backwards-incompatible way, leading to crashes when disassembling old bitcode: assertion: empty() && "PlaceholderQueue hasn't been flushed before being destroyed" Assertion failed: (empty() && "PlaceholderQueue hasn't been flushed before being destroyed") This commit teaches the metadata loader to assume that the newly-added IsImplicitCode bit is 'false' when not present in old bitcode. I've added a bitcode compat regression test. rdar://44645820 llvm-svn: 342678
9 lines
383 B
Plaintext
9 lines
383 B
Plaintext
; AppleClang-700 uses a debug info version that isn't recognized by llvm.org
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; compilers. However, it does produce valid bitcode which should parse without
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; crashing the metadata loader.
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RUN: llvm-dis < %S/Inputs/apple-clang-700-O3-g-1.bc 2>&1 \
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RUN: | FileCheck %s -check-prefix INVALID-VERSION
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INVALID-VERSION: warning: ignoring debug info with an invalid version (700000003)
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