Issues · Glasgow Haskell Compiler / GHC · GitLab

Unsound optimization with -O in ghc 8.4 and 8.6 when using unsafeCoerce (produced by Agda)

#17206 · opened Sep 18, 2019 by Andreas Abel bug incorrect runtime result simplifier
- 5
updated Sep 19, 2019
Optimizer produces Core with an infinite <<loop>> v2

#17151 · opened Sep 04, 2019 by Alexey Kuleshevich 8.10.2 Phigh bug incorrect runtime result simplifier
- CLOSED
- 6
updated Apr 07, 2020
Use explicit lazy binding around undefined in inlinable functions

#16810 · opened Jun 13, 2019 by kazu-yamamoto 8.9 7 Phigh Strict bug incorrect runtime result
- 1
- 14
updated Jul 07, 2019
-fno-omit-yields doesn't work at -O0

#16713 · opened May 30, 2019 by roland code generation incorrect runtime result
- 1
updated Jun 05, 2019
On x86_64, `castFloatToWord32` can generate bad, signed `Word32`s

#16617 · opened May 01, 2019 by KevinBuhr bug incorrect runtime result
- CLOSED
- 3
- 1
updated May 24, 2019
KnownNat: result changes depending on optimizations

#16586 · opened Apr 17, 2019 by Bodigrim 8.8.1 10 Phighest bug incorrect runtime result specialisation
- CLOSED
- 7
- 23
updated Feb 25, 2020
Fix for #14619 is wrong

#16514 · opened Apr 01, 2019 by Duane Ryrag 8.6.5 8 Phigh Windows bug code generation incorrect runtime result
- CLOSED
- 6
- 7
updated Feb 25, 2020
PowerPC Big-Endian: ArithInt16, ArithInt8, ArithWord16, and ArithWord8 fail

#16258 · opened Jan 30, 2019 by Peter Trommler 8.10.1 5 Pnormal Trac import bug incorrect runtime result
- CLOSED
- 3
- 5
updated Jul 07, 2019
PPC NCG: C calling convention violated for integers smaller than word size

#16222 · opened Jan 23, 2019 by Peter Trommler 8.10.1 5 FFI Pnormal PowerPC Trac import bug incorrect runtime result
- CLOSED
- 3
- 2
updated Jul 07, 2019
Strictness is not preserved under -O1

#16197 · opened Jan 17, 2019 by Alex Lang 8.8.1 5 Pnormal Trac import bug incorrect runtime result
- CLOSED
- 8
updated Jul 07, 2019
Data races in itimer_thread_func reported by ThreadSanitizer

#16150 · opened Jan 08, 2019 by gnezdo 8.6.4 5 Pnormal RTS Trac import bug incorrect runtime result
- CLOSED
- 4
updated Aug 20, 2019
ghc-pkg deadlocks on macOS

#16147 · opened Jan 08, 2019 by rvl 8.6.4 5 Pnormal RTS Trac import bug incorrect runtime result
- CLOSED
- 7
updated Jul 15, 2020
Inconsistent behavior of Data.Bits.shiftL with different optimization levels and -fllvm

#16111 · opened Dec 30, 2018 by Ryan Scott 8.8.1 5 Pnormal Trac import bug incorrect runtime result
- CLOSED
- 17
updated Aug 29, 2020
seq is not cooperating with :sprint in GHCi as expected

#16089 · opened Dec 23, 2018 by radrow 8.8.1 5 GHCi Pnormal Trac import bug incorrect runtime result
- CLOSED
- 15
updated Jul 07, 2019
Show instance for Data.Fixed does not show parentheses for negatives

#16031 · opened Dec 11, 2018 by skeuchel 8.8.1 5 Pnormal Trac import bug core libraries incorrect runtime result newcomer
- CLOSED
- 4
updated Jul 07, 2019
semantics of concurrent program depends on -O level, -f[no-]omit-yields

#15975 · opened Nov 29, 2018 by waldmann@imn.htwk-leipzig.de Research needed 5 Pnormal RTS Trac import bug incorrect runtime result
- 2
updated Nov 14, 2019
Wrong size for int for callbacks into Haskell from foreign code

#15933 · opened Nov 22, 2018 by Ilias Tsitsimpis 8.6.3 5 FFI Pnormal Trac import bug incorrect runtime result
- CLOSED
- 4
- 8
updated Jun 14, 2020
GhostScript not available for hp2ps tests

#15856 · opened Nov 03, 2018 by jrp2014 8.8.1 5 Pnormal Trac import bug incorrect runtime result testsuite
- CLOSED
- 5
updated Jul 07, 2019
Testsuite failures from validate --slow

#15736 · opened Oct 10, 2018 by jrp2014 10 Phighest Trac import bug incorrect runtime result testsuite
- CLOSED
- 26
updated May 31, 2020
getArgsWithResponseFiles does not filter out RTS options

#15732 · opened Oct 09, 2018 by Chaitanya Koparkar 5 Pnormal Trac import bug core libraries incorrect runtime result
- 5
updated Jan 23, 2020

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