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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-02-20 20:20:07 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-02-20 20:20:07 +0000 |
| commit | f7ad048f1e122ee4f735398786f4859392f74144 (patch) | |
| tree | 92baccc7fee7eebc6ed30ae6fd62568bad49241d /lib/MC | |
| parent | 8e04fc3adf3419eeb9466b66cbaf9b027dcc2cab (diff) | |
| download | llvm-f7ad048f1e122ee4f735398786f4859392f74144.tar.gz llvm-f7ad048f1e122ee4f735398786f4859392f74144.tar.bz2 llvm-f7ad048f1e122ee4f735398786f4859392f74144.tar.xz | |
Add some limited support for labels in org directives. Hopefully enough to fix
PR9245.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126091 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC')
| -rw-r--r-- | lib/MC/MCObjectStreamer.cpp | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp index 035826690c..e67d9b03a9 100644 --- a/lib/MC/MCObjectStreamer.cpp +++ b/lib/MC/MCObjectStreamer.cpp @@ -242,7 +242,23 @@ void MCObjectStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel, void MCObjectStreamer::EmitValueToOffset(const MCExpr *Offset, unsigned char Value) { - new MCOrgFragment(*Offset, Value, getCurrentSectionData()); + int64_t Res; + if (Offset->EvaluateAsAbsolute(Res, getAssembler())) { + new MCOrgFragment(*Offset, Value, getCurrentSectionData()); + return; + } + + MCSymbol *CurrentPos = getContext().CreateTempSymbol(); + EmitLabel(CurrentPos); + MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; + const MCExpr *Ref = + MCSymbolRefExpr::Create(CurrentPos, Variant, getContext()); + const MCExpr *Delta = + MCBinaryExpr::Create(MCBinaryExpr::Sub, Offset, Ref, getContext()); + + if (!Delta->EvaluateAsAbsolute(Res, getAssembler())) + report_fatal_error("expected assembly-time absolute expression"); + EmitFill(Res, Value, 0); } void MCObjectStreamer::Finish() { |