diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86RegisterInfo.cpp | 26 |
1 files changed, 9 insertions, 17 deletions
diff --git a/llvm/lib/Target/X86/X86RegisterInfo.cpp b/llvm/lib/Target/X86/X86RegisterInfo.cpp index 3b9144dc0b8..6b0a9154b16 100644 --- a/llvm/lib/Target/X86/X86RegisterInfo.cpp +++ b/llvm/lib/Target/X86/X86RegisterInfo.cpp @@ -620,7 +620,15 @@ unsigned getX86SubSuperRegister(unsigned Reg, MVT::SimpleValueType VT, case MVT::i8: if (High) { switch (Reg) { - default: return getX86SubSuperRegister(Reg, MVT::i64, High); + default: return getX86SubSuperRegister(Reg, MVT::i64); + case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI: + return X86::SI; + case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI: + return X86::DI; + case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP: + return X86::BP; + case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP: + return X86::SP; case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX: return X86::AH; case X86::DH: case X86::DL: case X86::DX: case X86::EDX: case X86::RDX: @@ -740,22 +748,6 @@ unsigned getX86SubSuperRegister(unsigned Reg, MVT::SimpleValueType VT, return X86::R15D; } case MVT::i64: - // For 64-bit mode if we've requested a "high" register and the - // Q or r constraints we want one of these high registers or - // just the register name otherwise. - if (High) { - switch (Reg) { - case X86::SIL: case X86::SI: case X86::ESI: case X86::RSI: - return X86::SI; - case X86::DIL: case X86::DI: case X86::EDI: case X86::RDI: - return X86::DI; - case X86::BPL: case X86::BP: case X86::EBP: case X86::RBP: - return X86::BP; - case X86::SPL: case X86::SP: case X86::ESP: case X86::RSP: - return X86::SP; - // Fallthrough. - } - } switch (Reg) { default: llvm_unreachable("Unexpected register"); case X86::AH: case X86::AL: case X86::AX: case X86::EAX: case X86::RAX: |
