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The instruction pointer %RIP is a reserved register on x86_64.
author
Jakob Stoklund Olesen
<stoklund@2pi.dk>
Fri, 13 Nov 2009 21:56:01 +0000
(21:56 +0000)
committer
Jakob Stoklund Olesen
<stoklund@2pi.dk>
Fri, 13 Nov 2009 21:56:01 +0000
(21:56 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88705
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Target/X86/X86RegisterInfo.cpp
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diff --git
a/lib/Target/X86/X86RegisterInfo.cpp
b/lib/Target/X86/X86RegisterInfo.cpp
index d4e720c95281a28f8ae4a06a2c600908bb54cf67..44f1fa3b03583fc5928e27d9a43133d16499ceec 100644
(file)
--- a/
lib/Target/X86/X86RegisterInfo.cpp
+++ b/
lib/Target/X86/X86RegisterInfo.cpp
@@
-392,6
+392,11
@@
BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const {
Reserved.set(X86::SP);
Reserved.set(X86::SPL);
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);
// Set the frame-pointer register and its aliases as reserved if needed.
if (hasFP(MF)) {
Reserved.set(X86::RBP);