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| author | Andreas Rumpf <rumpf_a@web.de> | 2019-10-20 22:37:31 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-20 22:37:31 +0200 |
| commit | 38b3590e40b7267195c65168e6ff064775de4339 (patch) | |
| tree | 470130ede0af04c3209a2bd33531427759670acd /compiler/vmgen.nim | |
| parent | ec20fd35447fea2a5da8538260397cea24051db5 (diff) | |
| download | Nim-38b3590e40b7267195c65168e6ff064775de4339.tar.gz | |
fixes #12310 [backport] (#12470)
Diffstat (limited to 'compiler/vmgen.nim')
| -rw-r--r-- | compiler/vmgen.nim | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/compiler/vmgen.nim b/compiler/vmgen.nim index 09e02f818..b528ff7be 100644 --- a/compiler/vmgen.nim +++ b/compiler/vmgen.nim @@ -948,9 +948,13 @@ proc genMagic(c: PCtx; n: PNode; dest: var TDest; m: TMagic) = c.genAddSubInt(n, dest, opcAddInt) of mInc, mDec: unused(c, n, dest) - let opc = if m == mInc: opcAddInt else: opcSubInt + let isUnsigned = n.sons[1].typ.skipTypes(abstractVarRange).kind in {tyUInt..tyUInt64} + let opc = if not isUnsigned: + if m == mInc: opcAddInt else: opcSubInt + else: + if m == mInc: opcAddu else: opcSubu let d = c.genx(n.sons[1]) - if n.sons[2].isInt8Lit: + if n.sons[2].isInt8Lit and not isUnsigned: c.gABI(n, succ(opc), d, d, n.sons[2].intVal) else: let tmp = c.genx(n.sons[2]) |