Changes in directory llvm/include/llvm/Target:
TargetInstrInfo.h updated: 1.113 -> 1.114
---
Log message:
Add a TargetInstrDescriptor flag to mark an instruction as "re-materializable".
It means the instruction can be easily re-materialized at any point. e.g.
constant generation, load from constantpool.
---
Diffs of the changes: (+7 -0)
TargetInstrInfo.h | 7 +++++++
1 files changed, 7 insertions(+)
Index: llvm/include/llvm/Target/TargetInstrInfo.h
diff -u llvm/include/llvm/Target/TargetInstrInfo.h:1.113
llvm/include/llvm/Target/TargetInstrInfo.h:1.114
--- llvm/include/llvm/Target/TargetInstrInfo.h:1.113 Fri Mar 16 03:41:06 2007
+++ llvm/include/llvm/Target/TargetInstrInfo.h Mon Mar 19 01:19:16 2007
@@ -78,6 +78,10 @@
// execution.
const unsigned M_PREDICATED = 1 << 12;
+// M_REMATERIALIZIBLE - Set if this instruction can be trivally re-materialized
+// at any time, e.g. constant generation, load from constant pool.
+const unsigned M_REMATERIALIZIBLE = 1 << 13;
+
// Machine operand flags
// M_LOOK_UP_PTR_REG_CLASS - Set if this operand is a pointer value and it
@@ -207,6 +211,9 @@
bool isPredicated(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_PREDICATED;
}
+ bool isReMaterializable(MachineOpCode Opcode) const {
+ return get(Opcode).Flags & M_REMATERIALIZIBLE;
+ }
bool isCommutableInstr(MachineOpCode Opcode) const {
return get(Opcode).Flags & M_COMMUTABLE;
}
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