diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.td')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.td | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td index 4815aba5efa..7d8bb55a4c6 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.td +++ b/llvm/lib/Target/X86/X86InstrInfo.td @@ -1949,25 +1949,25 @@ multiclass ATOMIC_SWAP<bits<8> opc8, bits<8> opc, string mnemonic, string frag> } } -defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap">; +defm XCHG : ATOMIC_SWAP<0x86, 0x87, "xchg", "atomic_swap">, NotMemoryFoldable; // Swap between registers. let SchedRW = [WriteALU] in { let Constraints = "$src1 = $dst1, $src2 = $dst2", hasSideEffects = 0 in { def XCHG8rr : I<0x86, MRMSrcReg, (outs GR8:$dst1, GR8:$dst2), (ins GR8:$src1, GR8:$src2), - "xchg{b}\t{$src2, $src1|$src1, $src2}", []>; + "xchg{b}\t{$src2, $src1|$src1, $src2}", []>, NotMemoryFoldable; def XCHG16rr : I<0x87, MRMSrcReg, (outs GR16:$dst1, GR16:$dst2), (ins GR16:$src1, GR16:$src2), "xchg{w}\t{$src2, $src1|$src1, $src2}", []>, - OpSize16; + OpSize16, NotMemoryFoldable; def XCHG32rr : I<0x87, MRMSrcReg, (outs GR32:$dst1, GR32:$dst2), (ins GR32:$src1, GR32:$src2), "xchg{l}\t{$src2, $src1|$src1, $src2}", []>, - OpSize32; + OpSize32, NotMemoryFoldable; def XCHG64rr : RI<0x87, MRMSrcReg, (outs GR64:$dst1, GR64:$dst2), (ins GR64:$src1 ,GR64:$src2), - "xchg{q}\t{$src2, $src1|$src1, $src2}", []>; + "xchg{q}\t{$src2, $src1|$src1, $src2}", []>, NotMemoryFoldable; } // Swap between EAX and other registers. |
