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| author | Takano Akio <tak@anoak.io> | 2017-01-18 18:26:47 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2017-01-20 14:36:29 -0500 |
| commit | d49b2bb21691892ca6ac8f2403e31f2a5e53feb3 (patch) | |
| tree | cc8488acf59467899e4d3279a340577eec95310f /testsuite/tests/perf/space_leaks | |
| parent | a2a67b77c3048713541d1ed96ec0b95fb2542f9a (diff) | |
| download | haskell-d49b2bb21691892ca6ac8f2403e31f2a5e53feb3.tar.gz | |
Allow top-level string literals in Core (#8472)
This commits relaxes the invariants of the Core syntax so that a
top-level variable can be bound to a primitive string literal of type
Addr#.
This commit:
* Relaxes the invatiants of the Core, and allows top-level bindings whose
type is Addr# as long as their RHS is either a primitive string literal or
another variable.
* Allows the simplifier and the full-laziness transformer to float out
primitive string literals to the top leve.
* Introduces the new StgGenTopBinding type to accomodate top-level Addr#
bindings.
* Introduces a new type of labels in the object code, with the suffix "_bytes",
for exported top-level Addr# bindings.
* Makes some built-in rules more robust. This was necessary to keep them
functional after the above changes.
This is a continuation of D2554.
Rebasing notes:
This had two slightly suspicious performance regressions:
* T12425: bytes allocated regressed by roughly 5%
* T4029: bytes allocated regressed by a bit over 1%
* T13035: bytes allocated regressed by a bit over 5%
These deserve additional investigation.
Rebased by: bgamari.
Test Plan: ./validate --slow
Reviewers: goldfire, trofi, simonmar, simonpj, austin, hvr, bgamari
Reviewed By: trofi, simonpj, bgamari
Subscribers: trofi, simonpj, gridaphobe, thomie
Differential Revision: https://phabricator.haskell.org/D2605
GHC Trac Issues: #8472
Diffstat (limited to 'testsuite/tests/perf/space_leaks')
| -rw-r--r-- | testsuite/tests/perf/space_leaks/all.T | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/testsuite/tests/perf/space_leaks/all.T b/testsuite/tests/perf/space_leaks/all.T index 9acd157543..56a58cb586 100644 --- a/testsuite/tests/perf/space_leaks/all.T +++ b/testsuite/tests/perf/space_leaks/all.T @@ -64,7 +64,7 @@ test('T4029', # 2016-07-13: 92 (amd64/Linux) Changes to tidyType # 2016-09-01: 71 (amd64/Linux) Restore w/w limit (#11565) stats_num_field('max_bytes_used', - [(wordsize(64), 21387048 , 5)]), + [(wordsize(64), 21670448 , 5)]), # 2016-02-26: 24071720 (amd64/Linux) INITIAL # 2016-04-21: 25542832 (amd64/Linux) # 2016-05-23: 25247216 (amd64/Linux) Use -G1 @@ -73,6 +73,7 @@ test('T4029', # 2016-09-01: 21648488 (amd64/Linux) Restore w/w limit (#11565) # 2016-10-13: 20325248 (amd64/Linux) Creep (downwards, yay!) # 2016-11-14: 21387048 (amd64/Linux) Creep back upwards :( + # 2017-01-18: 21670448 (amd64/Linux) Float string literals to toplevel extra_hc_opts('+RTS -G1 -RTS' ), ], ghci_script, |