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author | Lang Hames <lhames@gmail.com> | 2014-04-15 04:40:56 +0000 |
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committer | Lang Hames <lhames@gmail.com> | 2014-04-15 04:40:56 +0000 |
commit | 508bd630466f9625ba07a3f601435e1ff824b768 (patch) | |
tree | 4d9ba7c2f255580b8a25ad0a19db9616e7f4fd62 /tools/llvm-mc/Disassembler.cpp | |
parent | 88f353252d6130469d5854efb37659d3ba015c02 (diff) | |
download | llvm-508bd630466f9625ba07a3f601435e1ff824b768.tar.gz llvm-508bd630466f9625ba07a3f601435e1ff824b768.tar.bz2 llvm-508bd630466f9625ba07a3f601435e1ff824b768.tar.xz |
[MC] Require an MCContext when constructing an MCDisassembler.
This patch re-introduces the MCContext member that was removed from
MCDisassembler in r206063, and requires that an MCContext be passed in at
MCDisassembler construction time. (Previously the MCContext member had been
initialized in an ad-hoc fashion after construction). The MCCContext member
can be used by MCDisassembler sub-classes to construct constant or
target-specific MCExprs.
This patch updates disassemblers for in-tree targets, and provides the
MCRegisterInfo instance that some disassemblers were using through the
MCContext (previously those backends were constructing their own
MCRegisterInfo instances).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206241 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-mc/Disassembler.cpp')
-rw-r--r-- | tools/llvm-mc/Disassembler.cpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/tools/llvm-mc/Disassembler.cpp b/tools/llvm-mc/Disassembler.cpp index 9c402f2305..28629c10c1 100644 --- a/tools/llvm-mc/Disassembler.cpp +++ b/tools/llvm-mc/Disassembler.cpp @@ -14,8 +14,11 @@ #include "Disassembler.h" #include "llvm/ADT/Triple.h" +#include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCContext.h" #include "llvm/MC/MCDisassembler.h" #include "llvm/MC/MCInst.h" +#include "llvm/MC/MCRegisterInfo.h" #include "llvm/MC/MCStreamer.h" #include "llvm/MC/MCSubtargetInfo.h" #include "llvm/Support/MemoryBuffer.h" @@ -158,7 +161,24 @@ int Disassembler::disassemble(const Target &T, MemoryBuffer &Buffer, SourceMgr &SM, raw_ostream &Out) { - std::unique_ptr<const MCDisassembler> DisAsm(T.createMCDisassembler(STI)); + + std::unique_ptr<const MCRegisterInfo> MRI(T.createMCRegInfo(Triple)); + if (!MRI) { + errs() << "error: no register info for target " << Triple << "\n"; + return -1; + } + + std::unique_ptr<const MCAsmInfo> MAI(T.createMCAsmInfo(*MRI, Triple)); + if (!MAI) { + errs() << "error: no assembly info for target " << Triple << "\n"; + return -1; + } + + // Set up the MCContext for creating symbols and MCExpr's. + MCContext Ctx(MAI.get(), MRI.get(), 0); + + std::unique_ptr<const MCDisassembler> DisAsm( + T.createMCDisassembler(STI, Ctx)); if (!DisAsm) { errs() << "error: no disassembler for target " << Triple << "\n"; return -1; |