diff options
author | Hsiangkai Wang <hsiangkai@gmail.com> | 2018-08-01 04:17:41 +0000 |
---|---|---|
committer | Hsiangkai Wang <hsiangkai@gmail.com> | 2018-08-01 04:17:41 +0000 |
commit | c8a8300f9aba252499f14e3c0b79ac2853925962 (patch) | |
tree | e1435d7c6b6d8a7b7eac99b46cc2fcc690561080 /lib/MC | |
parent | 3472a740824bffeeeed12e0bf7efe647ed9b26ea (diff) |
[DebugInfo] Fix build failed in clang-x86_64-linux-selfhost-modules.
Only generate symbol difference expression if needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338484 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC')
-rw-r--r-- | lib/MC/MCAssembler.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/MC/MCAssembler.cpp b/lib/MC/MCAssembler.cpp index d3a84e26f1b..1e23b6d816e 100644 --- a/lib/MC/MCAssembler.cpp +++ b/lib/MC/MCAssembler.cpp @@ -954,7 +954,13 @@ bool MCAssembler::relaxDwarfLineAddr(MCAsmLayout &Layout, MCContext &Context = Layout.getAssembler().getContext(); uint64_t OldSize = DF.getContents().size(); int64_t AddrDelta; - bool Abs = DF.getAddrDelta().evaluateAsAbsolute(AddrDelta, Layout); + bool Abs; + if (getBackend().requiresDiffExpressionRelocations()) + Abs = DF.getAddrDelta().evaluateAsAbsolute(AddrDelta, Layout); + else { + Abs = DF.getAddrDelta().evaluateKnownAbsolute(AddrDelta, Layout); + assert(Abs && "We created a line delta with an invalid expression"); + } int64_t LineDelta; LineDelta = DF.getLineDelta(); SmallVectorImpl<char> &Data = DF.getContents(); |