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-rw-r--r--llvm/lib/Target/X86/X86RegisterInfo.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp
index d4e720c9528..44f1fa3b035 100644
--- a/llvm/lib/Target/X86/X86RegisterInfo.cpp
+++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp
@@ -392,6 +392,11 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
Reserved.set(X86::SP);
Reserved.set(X86::SPL);
+ // Set the instruction pointer register and its aliases as reserved.
+ Reserved.set(X86::RIP);
+ Reserved.set(X86::EIP);
+ Reserved.set(X86::IP);
+
// Set the frame-pointer register and its aliases as reserved if needed.
if (hasFP(MF)) {
Reserved.set(X86::RBP);
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