[FastISel] Move optimizeCmpPredicate to FastISel base class. NFC.
Make the optimizeCmpPredicate function available to all targets.
llvm-svn: 217822
diff --git a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
index 40f387f..7b656bf 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -2142,3 +2142,43 @@
return FuncInfo.MF->getMachineMemOperand(MachinePointerInfo(Ptr), Flags, Size,
Alignment, AAInfo, Ranges);
}
+
+CmpInst::Predicate FastISel::optimizeCmpPredicate(const CmpInst *CI) const {
+ // If both operands are the same, then try to optimize or fold the cmp.
+ CmpInst::Predicate Predicate = CI->getPredicate();
+ if (CI->getOperand(0) != CI->getOperand(1))
+ return Predicate;
+
+ switch (Predicate) {
+ default: llvm_unreachable("Invalid predicate!");
+ case CmpInst::FCMP_FALSE: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::FCMP_OEQ: Predicate = CmpInst::FCMP_ORD; break;
+ case CmpInst::FCMP_OGT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::FCMP_OGE: Predicate = CmpInst::FCMP_ORD; break;
+ case CmpInst::FCMP_OLT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::FCMP_OLE: Predicate = CmpInst::FCMP_ORD; break;
+ case CmpInst::FCMP_ONE: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::FCMP_ORD: Predicate = CmpInst::FCMP_ORD; break;
+ case CmpInst::FCMP_UNO: Predicate = CmpInst::FCMP_UNO; break;
+ case CmpInst::FCMP_UEQ: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::FCMP_UGT: Predicate = CmpInst::FCMP_UNO; break;
+ case CmpInst::FCMP_UGE: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::FCMP_ULT: Predicate = CmpInst::FCMP_UNO; break;
+ case CmpInst::FCMP_ULE: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::FCMP_UNE: Predicate = CmpInst::FCMP_UNO; break;
+ case CmpInst::FCMP_TRUE: Predicate = CmpInst::FCMP_TRUE; break;
+
+ case CmpInst::ICMP_EQ: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::ICMP_NE: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::ICMP_UGT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::ICMP_UGE: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::ICMP_ULT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::ICMP_ULE: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::ICMP_SGT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::ICMP_SGE: Predicate = CmpInst::FCMP_TRUE; break;
+ case CmpInst::ICMP_SLT: Predicate = CmpInst::FCMP_FALSE; break;
+ case CmpInst::ICMP_SLE: Predicate = CmpInst::FCMP_TRUE; break;
+ }
+
+ return Predicate;
+}
\ No newline at end of file
diff --git a/llvm/lib/Target/X86/X86FastISel.cpp b/llvm/lib/Target/X86/X86FastISel.cpp
index 72c50ba..36cde6b 100644
--- a/llvm/lib/Target/X86/X86FastISel.cpp
+++ b/llvm/lib/Target/X86/X86FastISel.cpp
@@ -164,46 +164,6 @@
} // end anonymous namespace.
-static CmpInst::Predicate optimizeCmpPredicate(const CmpInst *CI) {
- // If both operands are the same, then try to optimize or fold the cmp.
- CmpInst::Predicate Predicate = CI->getPredicate();
- if (CI->getOperand(0) != CI->getOperand(1))
- return Predicate;
-
- switch (Predicate) {
- default: llvm_unreachable("Invalid predicate!");
- case CmpInst::FCMP_FALSE: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::FCMP_OEQ: Predicate = CmpInst::FCMP_ORD; break;
- case CmpInst::FCMP_OGT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::FCMP_OGE: Predicate = CmpInst::FCMP_ORD; break;
- case CmpInst::FCMP_OLT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::FCMP_OLE: Predicate = CmpInst::FCMP_ORD; break;
- case CmpInst::FCMP_ONE: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::FCMP_ORD: Predicate = CmpInst::FCMP_ORD; break;
- case CmpInst::FCMP_UNO: Predicate = CmpInst::FCMP_UNO; break;
- case CmpInst::FCMP_UEQ: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::FCMP_UGT: Predicate = CmpInst::FCMP_UNO; break;
- case CmpInst::FCMP_UGE: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::FCMP_ULT: Predicate = CmpInst::FCMP_UNO; break;
- case CmpInst::FCMP_ULE: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::FCMP_UNE: Predicate = CmpInst::FCMP_UNO; break;
- case CmpInst::FCMP_TRUE: Predicate = CmpInst::FCMP_TRUE; break;
-
- case CmpInst::ICMP_EQ: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::ICMP_NE: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::ICMP_UGT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::ICMP_UGE: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::ICMP_ULT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::ICMP_ULE: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::ICMP_SGT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::ICMP_SGE: Predicate = CmpInst::FCMP_TRUE; break;
- case CmpInst::ICMP_SLT: Predicate = CmpInst::FCMP_FALSE; break;
- case CmpInst::ICMP_SLE: Predicate = CmpInst::FCMP_TRUE; break;
- }
-
- return Predicate;
-}
-
static std::pair<X86::CondCode, bool>
getX86ConditionCode(CmpInst::Predicate Predicate) {
X86::CondCode CC = X86::COND_INVALID;