diff options
Diffstat (limited to 'llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp index 9d1f01d..a68674b 100644 --- a/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp +++ b/llvm/lib/Target/RISCV/RISCVRegisterInfo.cpp @@ -30,6 +30,8 @@ using namespace llvm; +static cl::opt<bool> DisableCostPerUse("riscv-disable-cost-per-use", + cl::init(false), cl::Hidden); static cl::opt<bool> DisableRegAllocHints("riscv-disable-regalloc-hints", cl::Hidden, cl::init(false), @@ -712,7 +714,10 @@ void RISCVRegisterInfo::getOffsetOpcodes(const StackOffset &Offset, unsigned RISCVRegisterInfo::getRegisterCostTableIndex(const MachineFunction &MF) const { - return MF.getSubtarget<RISCVSubtarget>().hasStdExtCOrZca() ? 1 : 0; + return MF.getSubtarget<RISCVSubtarget>().hasStdExtCOrZca() && + !DisableCostPerUse + ? 1 + : 0; } // Add two address hints to improve chances of being able to use a compressed |