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| author | Cameron Zwarich <zwarich@apple.com> | 2011-05-18 22:24:48 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-05-18 22:24:48 +0000 |
| commit | e4c64454051962ab56187c966e981043ff17ae4f (patch) | |
| tree | 228f3224bd744a09bbfbcb5ca50f290bdf3b5d8c /lib/Target/X86/X86RegisterInfo.cpp | |
| parent | 8b3e5e5afaa312f2297b326a0f4d7febd8d20e08 (diff) | |
| download | external_llvm-e4c64454051962ab56187c966e981043ff17ae4f.zip external_llvm-e4c64454051962ab56187c966e981043ff17ae4f.tar.gz external_llvm-e4c64454051962ab56187c966e981043ff17ae4f.tar.bz2 | |
Reserve the segment registers on x86 to fix verifier failures in any code that
uses them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131591 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 6f3cdb5..f87745f 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -468,6 +468,15 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const { Reserved.set(X86::ST5); Reserved.set(X86::ST6); Reserved.set(X86::ST7); + + // Mark the segment registers as reserved. + Reserved.set(X86::CS); + Reserved.set(X86::SS); + Reserved.set(X86::DS); + Reserved.set(X86::ES); + Reserved.set(X86::FS); + Reserved.set(X86::GS); + return Reserved; } |