diff options
| author | Dan Gohman <gohman@apple.com> | 2009-08-05 20:13:45 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-08-05 20:13:45 +0000 |
| commit | be0cf7dbc2d230e10f6eec92fb2219ce69a925cc (patch) | |
| tree | e24a468112a54aca7b8a15eef230c840d70ccf1f /lib | |
| parent | 14d9495403e4c0129119a79322ee4e744b2eced8 (diff) | |
hasSuperClass tests for a strict superset relation, rather than
a superset relation. This code wants to test the regular superset
relation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78236 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp index 22f8b53e32..784a790eb0 100644 --- a/lib/Target/X86/X86InstrInfo.cpp +++ b/lib/Target/X86/X86InstrInfo.cpp @@ -1698,8 +1698,8 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB, else if (!DestRC->hasSubClass(SrcRC)) { // Neither of GR64_NOREX or GR64_NOSP is a superclass of the other, // but we want to copy then as GR64. - if (SrcRC->hasSuperClass(&X86::GR64RegClass) && - DestRC->hasSuperClass(&X86::GR64RegClass)) + if ((SrcRC == &X86::GR64RegClass || SrcRC->hasSuperClass(&X86::GR64RegClass)) && + (DestRC == &X86::GR64RegClass || DestRC->hasSuperClass(&X86::GR64RegClass))) CommonRC = &X86::GR64RegClass; else CommonRC = 0; |