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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-24 00:06:39 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-24 00:06:39 +0000 |
| commit | 3c8e1bee6399e829eda801a32158c1f52d2733ad (patch) | |
| tree | 005849e58183f7cfce81b14de865a4d253339d27 /lib/Target/X86/X86RegisterInfo.cpp | |
| parent | c2723a57f35dd69bd261faaa71ee7aa05f40a87d (diff) | |
| download | external_llvm-3c8e1bee6399e829eda801a32158c1f52d2733ad.zip external_llvm-3c8e1bee6399e829eda801a32158c1f52d2733ad.tar.gz external_llvm-3c8e1bee6399e829eda801a32158c1f52d2733ad.tar.bz2 | |
Support x86 "eiz" and "riz" pseudo index registers in the assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109295 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index 945c359..9fd41fd 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -193,6 +193,12 @@ unsigned X86RegisterInfo::getX86RegNum(unsigned RegNo) { case X86::DR7: return 7; + // Pseudo index registers are equivalent to a "none" + // scaled index (See Intel Manual 2A, table 2-3) + case X86::EIZ: + case X86::RIZ: + return 4; + default: assert(isVirtualRegister(RegNo) && "Unknown physical register!"); llvm_unreachable("Register allocator hasn't allocated reg correctly yet!"); |