+static unsigned computeBytesPoppedByCallee(const X86Subtarget &Subtarget,
+ const ImmutableCallSite &CS) {
+ if (Subtarget.is64Bit())
+ return 0;
+ if (Subtarget.isTargetWindows())
+ return 0;
+ CallingConv::ID CC = CS.getCallingConv();
+ if (CC == CallingConv::Fast || CC == CallingConv::GHC)
+ return 0;
+ if (!CS.paramHasAttr(1, Attribute::StructRet))
+ return 0;
+ if (CS.paramHasAttr(1, Attribute::InReg))
+ return 0;
+ return 4;
+}
+