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Unfortunately this will require more work; register allocation is
quite broken.
This reverts commit acd795583625401c5554f8e04ec7efca18814011.
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This adds support for constructing vector types from Float#, Double# etc
and performing arithmetic operations on them
Cleaned-Up-By: Ben Gamari <ben@well-typed.com>
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* simplifies registers to have GPR, Float and Double, by removing the SSE2 and X87 Constructors
* makes -msse2 assumed/default for x86 platforms, fixing a long standing nondeterminism in rounding
behavior in 32bit haskell code
* removes the 80bit floating point representation from the supported float sizes
* theres still 1 tiny bit of x87 support needed,
for handling float and double return values in FFI calls wrt the C ABI on x86_32,
but this one piece does not leak into the rest of NCG.
* Lots of code thats not been touched in a long time got deleted as a
consequence of all of this
all in all, this change paves the way towards a lot of future further
improvements in how GHC handles floating point computations, along with
making the native code gen more accessible to a larger pool of contributors.
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This switches the compiler/ component to get compiled with
-XNoImplicitPrelude and a `import GhcPrelude` is inserted in all
modules.
This is motivated by the upcoming "Prelude" re-export of
`Semigroup((<>))` which would cause lots of name clashes in every
modulewhich imports also `Outputable`
Reviewers: austin, goldfire, bgamari, alanz, simonmar
Reviewed By: bgamari
Subscribers: goldfire, rwbarton, thomie, mpickering, bgamari
Differential Revision: https://phabricator.haskell.org/D3989
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Fixes #10647. Changes the error message when a SIMD size
variable is required in the native code generation backend.
Test Plan:
Try compiling the test case given in the ticket :
{-# LANGUAGE MagicHash #-}
module Foo where
import GHC.Prim
data V = V Int8X16#
GHC should give a clearer error message
Reviewers: austin, bgamari
Reviewed By: bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2325
GHC Trac Issues: #10647
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This commit renames the Size module in the native code generator to
Format, as proposed by a todo, as well as adjusting parameter names in
other modules that use it.
Test Plan: validate
Reviewers: austin, simonmar, bgamari
Reviewed By: simonmar, bgamari
Subscribers: bgamari, simonmar, thomie
Projects: #ghc
Differential Revision: https://phabricator.haskell.org/D865
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