delta/haskell.git/libraries/base/tests/Numeric, branch wip/codebuffer-perftest

base: add Numeric.{readBin, showBin} (fix #19036)

2021-01-02T12:32:50+00:00

winio: Fix sqrt and openFile009 test cases

2020-07-15T20:41:02+00:00

testsuite: Add assertions that way lists are in fact lists

2019-06-16T03:34:25+00:00

Previously there were a few cases where operations like `omit_ways`
were incorrectly passed a single way (e.g. `omit_ways('threaded2')`).
This won't work as the author expected.

removing x87 register support from native code gen

2019-04-11T00:28:41+00:00

* 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.

testsuite: Mark num009 as broken due to #15062

2018-06-16T16:28:54+00:00

Test Plan: Validate

Reviewers: hvr

Subscribers: rwbarton, thomie, carter

GHC Trac Issues: #15062

Differential Revision: https://phabricator.haskell.org/D4854

Mark test broken on powerpc64[le]

2018-06-14T14:03:28+00:00

Test num009 fails different results. #15062 lists more issues on other
platforms. Test T14894 fails because DWARF support is not implemented in
the PowerPC native code backend. T5435_v_asm_b fails because the runtime
linker is not implemented for PowerPC 64-bit systems.

Test Plan: validate

Reviewers: bgamari, hvr, erikd, simonmar

Reviewed By: bgamari

Subscribers: rwbarton, thomie, carter

GHC Trac Issues: #13634, #11261, #11259, #15062

Differential Revision: https://phabricator.haskell.org/D4825

base: Fix handling of showEFloat (Just 0)

2018-05-13T22:30:43+00:00

Previously `showEFloat (Just 0) pi ""` would produce `3.0e0`. Of
course, this
blatantly disrespects the user's request to print with zero digits of
precision.
Fix this.

This is tested by base's `num008` testcase.

Test Plan: Validate

Reviewers: hvr

Subscribers: rwbarton, thomie, carter

GHC Trac Issues: #15115

Differential Revision: https://phabricator.haskell.org/D4665

testsuite: Add test for negative sqrts (#10010)

2018-04-10T15:35:59+00:00

Reviewers: hvr, alpmestan

Reviewed By: alpmestan

Subscribers: thomie, carter

GHC Trac Issues: #10010

Differential Revision: https://phabricator.haskell.org/D4543

nativeGen: Use SSE2 SQRT instruction

2017-04-28T18:25:32+00:00

Reviewers: austin, dfeuer

Subscribers: dfeuer, rwbarton, thomie

GHC Trac Issues: #13629

Differential Revision: https://phabricator.haskell.org/D3508

base: Run num009 with -msse2 on i386

2017-04-06T21:43:51+00:00

x87's transcendental instructions are terribly imprecise and fail this test.
Moreover, we really ouch to enable -mse2 on i386 by default as it is nearly
universally supported at this point. See #13540.