mirrors/Nim
1
0
Fork 0
mirror of https://github.com/nim-lang/Nim.git synced 2026-06-04 02:44:44 +00:00
Code Issues Packages Projects Releases Wiki Activity

fix #20972 fixes invalid and UB codegen case object transitions for both refc and ORC [backport] (#21611)

Browse Source 
fix #20972 fixes invalid and UB codegen case object transitions for refc and ORC
This commit is contained in:
ringabout
2023-04-04 18:18:43 +08:00
committed by GitHub
parent 31d3606fe8
commit 3575f2bf9c
2 changed files with 20 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
tests/objects/t20972.nim Normal file
View File

@@ -0,0 +1,15 @@
discard """
matrix: "--mm:refc -d:release; --mm:orc -d:release"
"""
{.passC: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -Wall -Wextra -pedantic -flto".}
{.passL: "-fsanitize=undefined -fsanitize-undefined-trap-on-error -flto".}
# bug #20972
type ForkedEpochInfo = object
case kind: bool
of true, false: discard
var info = ForkedEpochInfo(kind: true)
doAssert info.kind
info.kind = false
doAssert not info.kind