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| author | klebinger.andreas@gmx.at <klebinger.andreas@gmx.at> | 2019-04-02 14:20:12 +0200 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2019-04-03 00:34:57 -0400 |
| commit | 5a75ccd0993ff2fdf827824e28ae7db4ad9c25ad (patch) | |
| tree | efae16bdc9be651f85148a6ef68fc38d2664215b /docs | |
| parent | bf73419518ca550e85188616f860961c7e2a336b (diff) | |
| download | haskell-5a75ccd0993ff2fdf827824e28ae7db4ad9c25ad.tar.gz | |
Fix faulty substitutions in StgCse (#11532).
`substBndr` should rename bindings which shadow existing ids.
However while it was renaming the bindings it was not adding proper substitutions
for renamed bindings.
Instead of adding a substitution of the form `old -> new` for renamed
bindings it mistakenly added `old -> old` if no replacement had taken
place while adding none if `old` had been renamed.
As a byproduct this should improve performance, as we no longer add
useless substitutions for unshadowed bindings.
Diffstat (limited to 'docs')
0 files changed, 0 insertions, 0 deletions