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-rw-r--r--llvm/lib/Target/Hexagon/HexagonHardwareLoops.cpp4
-rw-r--r--llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp6
-rw-r--r--llvm/lib/Target/Hexagon/HexagonInstrInfo.h1
3 files changed, 9 insertions, 2 deletions
diff --git a/llvm/lib/Target/Hexagon/HexagonHardwareLoops.cpp b/llvm/lib/Target/Hexagon/HexagonHardwareLoops.cpp
index 02e08bafb5d..e4d7da1f385 100644
--- a/llvm/lib/Target/Hexagon/HexagonHardwareLoops.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonHardwareLoops.cpp
@@ -962,8 +962,8 @@ bool HexagonHardwareLoops::isInvalidLoopOperation(const MachineInstr *MI,
// Call is not allowed because the callee may use a hardware loop except for
// the case when the call never returns.
- if (MI->getDesc().isCall() && MI->getOpcode() != Hexagon::CALLv3nr)
- return true;
+ if (MI->getDesc().isCall())
+ return !TII->doesNotReturn(*MI);
// Check if the instruction defines a hardware loop register.
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
index 4e034a4945d..ec3a30f1f16 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
@@ -2972,6 +2972,12 @@ bool HexagonInstrInfo::canExecuteInBundle(const MachineInstr &First,
}
+bool HexagonInstrInfo::doesNotReturn(const MachineInstr &CallMI) const {
+ unsigned Opc = CallMI.getOpcode();
+ return Opc == Hexagon::CALLv3nr || Opc == Hexagon::CALLRv3nr;
+}
+
+
bool HexagonInstrInfo::hasEHLabel(const MachineBasicBlock *B) const {
for (auto &I : *B)
if (I.isEHLabel())
diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.h b/llvm/lib/Target/Hexagon/HexagonInstrInfo.h
index 72f89ab8ff2..4715a4ffcc3 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.h
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.h
@@ -360,6 +360,7 @@ public:
const MachineInstr &MI2) const;
bool canExecuteInBundle(const MachineInstr &First,
const MachineInstr &Second) const;
+ bool doesNotReturn(const MachineInstr &CallMI) const;
bool hasEHLabel(const MachineBasicBlock *B) const;
bool hasNonExtEquivalent(const MachineInstr &MI) const;
bool hasPseudoInstrPair(const MachineInstr &MI) const;
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