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| author | Dan Gohman <gohman@apple.com> | 2010-06-18 18:13:55 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-06-18 18:13:55 +0000 |
| commit | a606d955de3b0f777131d74162eb6f11b5f95d75 (patch) | |
| tree | b45dd853d37e5f5df32d4138143e9c562c4ff53b /lib/Target/TargetInstrInfo.cpp | |
| parent | df50d7e238c4802eb2de04646b8f7ff7327730a0 (diff) | |
| download | llvm-a606d955de3b0f777131d74162eb6f11b5f95d75.tar.gz llvm-a606d955de3b0f777131d74162eb6f11b5f95d75.tar.bz2 llvm-a606d955de3b0f777131d74162eb6f11b5f95d75.tar.xz | |
Start TargetRegisterClass indices at 0 instead of 1, so that
MachineRegisterInfo doesn't have to confusingly allocate an extra
entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106296 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/TargetInstrInfo.cpp')
| -rw-r--r-- | lib/Target/TargetInstrInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp index 094a57edb4..c099a7eaef 100644 --- a/lib/Target/TargetInstrInfo.cpp +++ b/lib/Target/TargetInstrInfo.cpp @@ -28,6 +28,10 @@ const TargetRegisterClass * TargetOperandInfo::getRegClass(const TargetRegisterInfo *TRI) const { if (isLookupPtrRegClass()) return TRI->getPointerRegClass(RegClass); + // Instructions like INSERT_SUBREG do not have fixed register classes. + if (RegClass < 0) + return 0; + // Otherwise just look it up normally. return TRI->getRegClass(RegClass); } |