[GHC] #13424: readMutVar# is marked can_fail
#13424: readMutVar# is marked can_fail -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: Other Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- `readMutVar#` can only fail if its argument is not a valid pointer. As far as I know, we never check whether a pointer is valid; we ensure it's valid by construction. So I think we should set `can_fail = False`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13424 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#13424: readMutVar# is marked can_fail -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3340 Wiki Page: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: new => patch * differential: => Phab:D3340 -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13424#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
#13424: readMutVar# is marked can_fail
-------------------------------------+-------------------------------------
Reporter: dfeuer | Owner: (none)
Type: bug | Status: patch
Priority: normal | Milestone: 8.4.1
Component: Compiler | Version: 8.1
Resolution: | Keywords:
Operating System: Unknown/Multiple | Architecture:
| Unknown/Multiple
Type of failure: Other | Test Case:
Blocked By: | Blocking:
Related Tickets: | Differential Rev(s): Phab:D3340
Wiki Page: |
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Comment (by David Feuer
#13424: readMutVar# is marked can_fail -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3340 Wiki Page: | -------------------------------------+------------------------------------- Changes (by dfeuer): * status: patch => closed * resolution: => fixed Comment: Note that this change probably won't have any immediate effect, since these primops are both `has_side_effects`; it just tries to set the stage a bit for further ones. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13424#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler
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