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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-13 21:56:01 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-13 21:56:01 +0000 |
| commit | 52cd548525089056ac5be97e2b8eb05257bcdf3b (patch) | |
| tree | ce4111de0622118414ce156dd973cdbd9e76d526 | |
| parent | 1dc0fcbaed01ed6510f067bc408f8bd2efd8ac68 (diff) | |
The instruction pointer %RIP is a reserved register on x86_64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88705 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index d4e720c952..44f1fa3b03 100644 --- 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); + // 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); |