int-to-float conversion broken on ARM
I compiled ghc on the raspberry pi. See this bug for more about that build of ghc: 8896.
A simple test program:
main = do
mapM_ (print . (fromInteger :: Integer -> Float)) [0..100]
And the result:
0.0
127.0
256.0
257.0
516.0
517.0
518.0
519.0
1040.0
1041.0
1042.0
1043.0
1044.0
1045.0
1046.0
1047.0
2096.0
2097.0
2098.0
2099.0
2100.0
2101.0
2102.0
2103.0
2104.0
2105.0
2106.0
2107.0
2108.0
2109.0
2110.0
2111.0
4224.0
4225.0
4226.0
4227.0
4228.0
4229.0
4230.0
4231.0
4232.0
4233.0
4234.0
4235.0
4236.0
4237.0
4238.0
4239.0
4240.0
4241.0
4242.0
4243.0
4244.0
4245.0
4246.0
4247.0
4248.0
4249.0
4250.0
4251.0
4252.0
4253.0
4254.0
4255.0
8512.0
8513.0
8514.0
8515.0
8516.0
8517.0
8518.0
8519.0
8520.0
8521.0
8522.0
8523.0
8524.0
8525.0
8526.0
8527.0
8528.0
8529.0
8530.0
8531.0
8532.0
8533.0
8534.0
8535.0
8536.0
8537.0
8538.0
8539.0
8540.0
8541.0
8542.0
8543.0
8544.0
8545.0
8546.0
8547.0
8548.0
8538.0
This code, however, works normally:
main = do
mapM_ (print . (fromInteger :: Integer -> Double)) [0..100]Trac metadata
| Trac field | Value |
|---|---|
| Version | 7.8.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | Linux |
| Architecture |