diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstr.h')
| -rw-r--r-- | include/llvm/CodeGen/MachineInstr.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 42709012d2..7eb03a9301 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -58,10 +58,8 @@ public: NoFlags = 0, FrameSetup = 1 << 0, // Instruction is used as a part of // function frame setup code. - InsideBundle = 1 << 1, // Instruction is inside a bundle (not + InsideBundle = 1 << 1 // Instruction is inside a bundle (not // the first MI in a bundle) - MayLoad = 1 << 2, // Instruction could possibly read memory. - MayStore = 1 << 3 // Instruction could possibly modify memory. }; private: const MCInstrDesc *MCID; // Instruction descriptor. @@ -447,7 +445,12 @@ public: /// Instructions with this flag set are not necessarily simple load /// instructions, they may load a value and modify it, for example. bool mayLoad(QueryType Type = AnyInBundle) const { - return hasProperty(MCID::MayLoad, Type) || (Flags & MayLoad); + if (isInlineAsm()) { + unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); + if (ExtraInfo & InlineAsm::Extra_MayLoad) + return true; + } + return hasProperty(MCID::MayLoad, Type); } @@ -456,7 +459,12 @@ public: /// instructions, they may store a modified value based on their operands, or /// may not actually modify anything, for example. bool mayStore(QueryType Type = AnyInBundle) const { - return hasProperty(MCID::MayStore, Type) || (Flags & MayStore); + if (isInlineAsm()) { + unsigned ExtraInfo = getOperand(InlineAsm::MIOp_ExtraInfo).getImm(); + if (ExtraInfo & InlineAsm::Extra_MayStore) + return true; + } + return hasProperty(MCID::MayStore, Type); } //===--------------------------------------------------------------------===// |