jyapayne/Nim
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

fixes #19198 [backport:1.6] (#19209)

Browse source 
* fixes #19198 [backport:1.6]

* added a test case
This commit is contained in:
Andreas Rumpf 2021-12-04 07:43:20 +01:00 • committed by GitHub
commit f90620fb32
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 41 additions and 16 deletions
Download patch file Download diff file Expand all files Collapse all files

6
compiler/vm.nim
View file

@ -434,8 +434,10 @@ proc opConv(c: PCtx; dest: var TFullReg, src: TFullReg, desttyp, srctyp: PType):
of tyFloat..tyFloat64:
dest.intVal = int(src.floatVal)
else:
let srcDist = (sizeof(src.intVal) - styp.size) * 8
let destDist = (sizeof(dest.intVal) - desttyp.size) * 8
let srcSize = getSize(c.config, styp)
let destSize = getSize(c.config, desttyp)
let srcDist = (sizeof(src.intVal) - srcSize) * 8
let destDist = (sizeof(dest.intVal) - destSize) * 8
var value = cast[BiggestUInt](src.intVal)
value = (value shl srcDist) shr srcDist
value = (value shl destDist) shr destDist