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[MC] Require an MCContext when constructing an MCDisassembler.

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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
This commit is contained in:
Lang Hames
2014-04-15 04:40:56 +00:00
parent 88f353252d
commit 508bd63046
17 changed files with 119 additions and 80 deletions
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9
lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
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@ -22,8 +22,8 @@ typedef MCDisassembler::DecodeStatus DecodeStatus;
namespace {
class PPCDisassembler : public MCDisassembler {
public:
PPCDisassembler(const MCSubtargetInfo &STI)
: MCDisassembler(STI) {}
PPCDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx)
: MCDisassembler(STI, Ctx) {}
virtual ~PPCDisassembler() {}
// Override MCDisassembler.
@ -37,8 +37,9 @@ public:
} // end anonymous namespace
static MCDisassembler *createPPCDisassembler(const Target &T,
const MCSubtargetInfo &STI) {
return new PPCDisassembler(STI);
const MCSubtargetInfo &STI,
MCContext &Ctx) {
return new PPCDisassembler(STI, Ctx);
}
extern "C" void LLVMInitializePowerPCDisassembler() {