From f94ab6a6620d4a629f46fd764742db0331e6470f Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Wed, 6 Jun 2007 10:13:55 +0000 Subject: [PATCH] Add a machine instruction flag indicating the instruction can clobber condition code / register(s) used to predicate instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37464 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/Target/TargetInstrInfo.h | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/include/llvm/Target/TargetInstrInfo.h b/include/llvm/Target/TargetInstrInfo.h index 5fe9130634b..f03fbb53214 100644 --- a/include/llvm/Target/TargetInstrInfo.h +++ b/include/llvm/Target/TargetInstrInfo.h @@ -82,6 +82,9 @@ const unsigned M_PREDICABLE = 1 << 12; // at any time, e.g. constant generation, load from constant pool. const unsigned M_REMATERIALIZIBLE = 1 << 13; +// M_CLOBBERS_PRED - Set if this instruction may clobbers the condition code +// register and / or registers that are used to predicate instructions. +const unsigned M_CLOBBERS_PRED = 1 << 14; // Machine operand flags // M_LOOK_UP_PTR_REG_CLASS - Set if this operand is a pointer value and it @@ -211,6 +214,9 @@ public: bool isPredicable(MachineOpCode Opcode) const { return get(Opcode).Flags & M_PREDICABLE; } + bool clobbersPredicate(MachineOpCode Opcode) const { + return get(Opcode).Flags & M_CLOBBERS_PRED; + } bool isReMaterializable(MachineOpCode Opcode) const { return get(Opcode).Flags & M_REMATERIALIZIBLE; } -- 2.34.1