[mips] Lower EH_RETURN.
Patch by Sasa Stankovic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173862 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Mips/MipsMachineFunction.cpp b/lib/Target/Mips/MipsMachineFunction.cpp
index 0c71596..59b23f7 100644
--- a/lib/Target/Mips/MipsMachineFunction.cpp
+++ b/lib/Target/Mips/MipsMachineFunction.cpp
@@ -56,4 +56,20 @@
return Mips16SPAliasReg = MF.getRegInfo().createVirtualRegister(RC);
}
+void MipsFunctionInfo::createEhDataRegsFI() {
+ for (int I = 0; I < 4; ++I) {
+ const MipsSubtarget &ST = MF.getTarget().getSubtarget<MipsSubtarget>();
+ const TargetRegisterClass *RC = ST.isABI_N64() ?
+ &Mips::CPU64RegsRegClass : &Mips::CPURegsRegClass;
+
+ EhDataRegFI[I] = MF.getFrameInfo()->CreateStackObject(RC->getSize(),
+ RC->getAlignment(), false);
+ }
+}
+
+bool MipsFunctionInfo::isEhDataRegFI(int FI) const {
+ return CallsEhReturn && (FI == EhDataRegFI[0] || FI == EhDataRegFI[1]
+ || FI == EhDataRegFI[2] || FI == EhDataRegFI[3]);
+}
+
void MipsFunctionInfo::anchor() { }