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| author | Simon Peyton Jones <simon.peytonjones@gmail.com> | 2023-01-10 09:26:08 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2023-01-11 22:37:35 -0500 |
| commit | b3be0d185b6e597fa517859430cf6d54df04ca46 (patch) | |
| tree | 6049b36592ab44bacafff1428163f7d7de114442 /testsuite/tests/simplCore | |
| parent | f7ceafc96bb8b6b1f3f062d07e0d433defaa9b41 (diff) | |
| download | haskell-b3be0d185b6e597fa517859430cf6d54df04ca46.tar.gz | |
Fix finaliseArgBoxities for OPAQUE function
We never do worker wrapper for OPAQUE functions, so we must
zap the unboxing info during strictness analysis.
This patch fixes #22502
Diffstat (limited to 'testsuite/tests/simplCore')
| -rw-r--r-- | testsuite/tests/simplCore/should_compile/T22502.hs | 15 | ||||
| -rw-r--r-- | testsuite/tests/simplCore/should_compile/all.T | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/testsuite/tests/simplCore/should_compile/T22502.hs b/testsuite/tests/simplCore/should_compile/T22502.hs new file mode 100644 index 0000000000..396e4cab9f --- /dev/null +++ b/testsuite/tests/simplCore/should_compile/T22502.hs @@ -0,0 +1,15 @@ +{-# LANGUAGE MagicHash #-} +module M where + +import GHC.Exts +import GHC.IO + +data T a = MkT !Bool !a + +fun :: T a -> IO a +{-# OPAQUE fun #-} +fun (MkT _ x) = IO $ \s -> noinline seq# x s +-- evaluate/seq# should not produce its own eval for x +-- since it is properly tagged (from a strict field) + +-- uses noinline to prevent caseRules from eliding the seq# in Core diff --git a/testsuite/tests/simplCore/should_compile/all.T b/testsuite/tests/simplCore/should_compile/all.T index e57bb4cafa..4fd57c5301 100644 --- a/testsuite/tests/simplCore/should_compile/all.T +++ b/testsuite/tests/simplCore/should_compile/all.T @@ -463,3 +463,4 @@ test('T22459', normal, compile, ['']) test('T22623', normal, multimod_compile, ['T22623', '-O -v0']) test('T22662', normal, compile, ['']) test('T22725', normal, compile, ['-O']) +test('T22502', normal, compile, ['-O']) |