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Minor spiller tweak to unfavor reload into load/store instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52477 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-06-19 01:16:17 +00:00
parent 6c5e561668
commit bdf34bc12b
3 changed files with 21 additions and 6 deletions
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7
include/llvm/CodeGen/MachineRegisterInfo.h
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@@ -135,6 +135,13 @@ public:
assert(Reg < VRegInfo.size() && "Invalid vreg!");
return VRegInfo[Reg].first;
}
/// setRegClass - Set the register class of the specified virtual register.
void setRegClass(unsigned Reg, const TargetRegisterClass *RC) {
Reg -= TargetRegisterInfo::FirstVirtualRegister;
assert(Reg < VRegInfo.size() && "Invalid vreg!");
VRegInfo[Reg].first = RC;
}
/// createVirtualRegister - Create and return a new virtual register in the
/// function with the specified register class.