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Fix an off-by-one error. Also make the code a little more explicit in what it 

is trying to do.

llvm-svn: 185191
This commit is contained in:
Chad Rosier 2013-06-28 18:57:01 +00:00
parent a67de2b1bc
commit ee740c4d88
1 changed files with 4 additions and 3 deletions
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7
llvm/lib/Target/X86/X86FloatingPoint.cpp
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@ -115,9 +115,10 @@ namespace {
unsigned Mask = 0;
for (MachineBasicBlock::livein_iterator I = MBB->livein_begin(),
E = MBB->livein_end(); I != E; ++I) {
unsigned Reg = *I - X86::FP0;
if (Reg < 8)
Mask |= 1 << Reg;
unsigned Reg = *I;
if (Reg < X86::FP0 || Reg > X86::FP6)
continue;
Mask |= 1 << (Reg - X86::FP0);
}
return Mask;
}