diff options
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index d22db10538..e5469a55b4 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -354,14 +354,8 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const { Reserved.set(X86::GS); // Mark the floating point stack registers as reserved. - Reserved.set(X86::ST0); - Reserved.set(X86::ST1); - Reserved.set(X86::ST2); - Reserved.set(X86::ST3); - Reserved.set(X86::ST4); - Reserved.set(X86::ST5); - Reserved.set(X86::ST6); - Reserved.set(X86::ST7); + for (unsigned n = 0; n != 8; ++n) + Reserved.set(X86::ST0 + n); // Reserve the registers that only exist in 64-bit mode. if (!Is64Bit) { @@ -374,19 +368,11 @@ BitVector X86RegisterInfo::getReservedRegs(const MachineFunction &MF) const { for (unsigned n = 0; n != 8; ++n) { // R8, R9, ... - static const uint16_t GPR64[] = { - X86::R8, X86::R9, X86::R10, X86::R11, - X86::R12, X86::R13, X86::R14, X86::R15 - }; - for (MCRegAliasIterator AI(GPR64[n], this, true); AI.isValid(); ++AI) + for (MCRegAliasIterator AI(X86::R8 + n, this, true); AI.isValid(); ++AI) Reserved.set(*AI); // XMM8, XMM9, ... - static const uint16_t XMMReg[] = { - X86::XMM8, X86::XMM9, X86::XMM10, X86::XMM11, - X86::XMM12, X86::XMM13, X86::XMM14, X86::XMM15 - }; - for (MCRegAliasIterator AI(XMMReg[n], this, true); AI.isValid(); ++AI) + for (MCRegAliasIterator AI(X86::XMM8 + n, this, true); AI.isValid(); ++AI) Reserved.set(*AI); } } |