Subzero: Basic Block Profiler.
BUG= None
R=stichnot@chromium.org
Review URL: https://codereview.chromium.org/1147023007.
diff --git a/src/IceCfgNode.cpp b/src/IceCfgNode.cpp
index 87eee0f..68578b9 100644
--- a/src/IceCfgNode.cpp
+++ b/src/IceCfgNode.cpp
@@ -15,6 +15,7 @@
#include "assembler.h"
#include "IceCfg.h"
#include "IceCfgNode.h"
+#include "IceGlobalInits.h"
#include "IceInst.h"
#include "IceLiveness.h"
#include "IceOperand.h"
@@ -1243,4 +1244,31 @@
}
}
+void CfgNode::profileExecutionCount(VariableDeclaration *Var) {
+ constexpr char RMW_I64[] = "llvm.nacl.atomic.rmw.i64";
+
+ GlobalContext *Context = Func->getContext();
+
+ bool BadIntrinsic = false;
+ const Intrinsics::FullIntrinsicInfo *Info =
+ Context->getIntrinsicsInfo().find(RMW_I64, BadIntrinsic);
+ assert(!BadIntrinsic);
+ assert(Info != nullptr);
+
+ Operand *RMWI64Name = Context->getConstantExternSym(RMW_I64);
+ Constant *Counter = Context->getConstantExternSym(Var->getName());
+ Constant *AtomicRMWOp = Context->getConstantInt32(Intrinsics::AtomicAdd);
+ Constant *One = Context->getConstantInt64(1);
+ Constant *OrderAcquireRelease =
+ Context->getConstantInt32(Intrinsics::MemoryOrderAcquireRelease);
+
+ InstIntrinsicCall *Inst = InstIntrinsicCall::create(
+ Func, 5, Func->makeVariable(IceType_i64), RMWI64Name, Info->Info);
+ Inst->addArg(AtomicRMWOp);
+ Inst->addArg(Counter);
+ Inst->addArg(One);
+ Inst->addArg(OrderAcquireRelease);
+ Insts.push_front(Inst);
+}
+
} // end of namespace Ice
