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|ID||Category||Severity||Reproducibility||Date Submitted||Last Update|
|0000180||[libFirm] optimisations||minor||always||2016-10-04 15:26||2017-05-08 16:13|
|Summary||0000180: shape-blocks optimization is broken|
In ir/opt/opt_blocks.c, we have the optimization "shape_blocks", which seems to always die with a segfault. See for example: makereport --cflags="-fshape-blocks"
Cparser has this optimization in its list, but not even -O3 enables it.
As far as we know, nobody uses it. Delete it?
Alternatively, any volunteers to fix it? ;)
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I just did a quick grep check and other optimizations (besides "shape-blocks") that seem to be always-off (except when using the corresponding -f switches) are: "gvn-pre", "unroll-loops", and "opt-proc-clone".
Each break (and, interestingly, repair) at least one test case from libfirm's testsuite when enabled via their corresponding -f switches.
|I don't care that you broke your elbow.|
|2016-10-04 15:26||zwinkau||New Issue|
|2016-10-04 17:10||mohr||Note Added: 0000273|
|2017-05-08 16:13||waldgrasgeniesser||Note Added: 0000291|
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