diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index e93f06ddb0..21475284cb 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -715,9 +715,12 @@ def INC32r : I<0xFF, MRM0r, (ops R32:$dst, R32:$src), "inc{l} $dst", [(set R32:$dst, (add R32:$src, 1))]>; } let isTwoAddress = 0 in { - def INC8m : I<0xFE, MRM0m, (ops i8mem :$dst), "inc{b} $dst", []>; - def INC16m : I<0xFF, MRM0m, (ops i16mem:$dst), "inc{w} $dst", []>, OpSize; - def INC32m : I<0xFF, MRM0m, (ops i32mem:$dst), "inc{l} $dst", []>; + def INC8m : I<0xFE, MRM0m, (ops i8mem :$dst), "inc{b} $dst", + [(store (add (i8 (load addr:$dst)), 1), addr:$dst)]>; + def INC16m : I<0xFF, MRM0m, (ops i16mem:$dst), "inc{w} $dst", + [(store (add (i16 (load addr:$dst)), 1), addr:$dst)]>, OpSize; + def INC32m : I<0xFF, MRM0m, (ops i32mem:$dst), "inc{l} $dst", + [(store (add (i32 (load addr:$dst)), 1), addr:$dst)]>; } def DEC8r : I<0xFE, MRM1r, (ops R8 :$dst, R8 :$src), "dec{b} $dst", @@ -730,9 +733,12 @@ def DEC32r : I<0xFF, MRM1r, (ops R32:$dst, R32:$src), "dec{l} $dst", } let isTwoAddress = 0 in { - def DEC8m : I<0xFE, MRM1m, (ops i8mem :$dst), "dec{b} $dst", []>; - def DEC16m : I<0xFF, MRM1m, (ops i16mem:$dst), "dec{w} $dst", []>, OpSize; - def DEC32m : I<0xFF, MRM1m, (ops i32mem:$dst), "dec{l} $dst", []>; + def DEC8m : I<0xFE, MRM1m, (ops i8mem :$dst), "dec{b} $dst", + [(store (add (i8 (load addr:$dst)), -1), addr:$dst)]>; + def DEC16m : I<0xFF, MRM1m, (ops i16mem:$dst), "dec{w} $dst", + [(store (add (i16 (load addr:$dst)), -1), addr:$dst)]>, OpSize; + def DEC32m : I<0xFF, MRM1m, (ops i32mem:$dst), "dec{l} $dst", + [(store (add (i32 (load addr:$dst)), -1), addr:$dst)]>; } // Logical operators... |