From d752e0f7e64585839cb3a458ef52456eaebbea3c Mon Sep 17 00:00:00 2001 From: Pete Cooper Date: Tue, 8 Nov 2011 18:42:53 +0000 Subject: Added invariant field to the DAG.getLoad method and changed all calls. When this field is true it means that the load is from constant (runt-time or compile-time) and so can be hoisted from loops or moved around other memory accesses git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144100 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/MachineInstr.cpp | 1 + 1 file changed, 1 insertion(+) (limited to 'lib/CodeGen/MachineInstr.cpp') diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index a240667f7d..b0ef9d401a 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -1253,6 +1253,7 @@ bool MachineInstr::isInvariantLoad(AliasAnalysis *AA) const { E = memoperands_end(); I != E; ++I) { if ((*I)->isVolatile()) return false; if ((*I)->isStore()) return false; + if ((*I)->isInvariant()) return true; if (const Value *V = (*I)->getValue()) { // A load from a constant PseudoSourceValue is invariant. -- cgit v1.2.3