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Fix vm signed xor (#10519)

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* fix #10482

* undo changes

* fix for bitwise not

* remove dead opcode
This commit is contained in:
Arne Döring
2019-02-01 12:12:10 +01:00
committed by Andreas Rumpf
parent 1d5437e9d2
commit b80dbdb77d
2 changed files with 16 additions and 7 deletions
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7
compiler/vmgen.nim
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@@ -1009,7 +1009,7 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) =
of mLtPtr, mLtU, mLtU64: genBinaryABC(c, n, dest, opcLtu)
of mEqProc, mEqRef, mEqUntracedRef:
genBinaryABC(c, n, dest, opcEqRef)
of mXor: genBinaryABCnarrowU(c, n, dest, opcXor)
of mXor: genBinaryABC(c, n, dest, opcXor)
of mNot: genUnaryABC(c, n, dest, opcNot)
of mUnaryMinusI, mUnaryMinusI64:
genUnaryABC(c, n, dest, opcUnaryMinusInt)
@@ -1018,7 +1018,10 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) =
of mUnaryPlusI, mUnaryPlusF64: gen(c, n.sons[1], dest)
of mBitnotI:
genUnaryABC(c, n, dest, opcBitnotInt)
genNarrowU(c, n, dest)
#genNarrowU modified, do not narrow signed types
let t = skipTypes(n.typ, abstractVar-{tyTypeDesc})
if t.kind in {tyUInt8..tyUInt32} or (t.kind == tyUInt and t.size < 8):
c.gABC(n, opcNarrowU, dest, TRegister(t.size*8))
of mToFloat, mToBiggestFloat, mToInt,
mToBiggestInt, mCharToStr, mBoolToStr, mIntToStr, mInt64ToStr,
mFloatToStr, mCStrToStr, mStrToStr, mEnumToStr: