* Correctly scan all the exponent bits, this caused the incorrect result
to be computed for exponents being powers of two.
* Allocate enough limbs to make llmulacc stop whining.
This reverts commit 70f37679035e64bacfc4807709da37bc02fbb346.
After discussion, I can see the value provided here, specifically with
avoiding the footgun of defer { suspend { free(@frame()); } }.
However the doc comments are updated to explain the semantics directly,
rather than basing them on the behavior of another programming language.
It was regressed in 2 ways from the merge of #6250:
* it was not being enabled by default when the target OS is native.
* we were testing the libfoo.so file path existence with bogus format
string ('{}' instead of '{s}') and so it ended up being something
like "libstd.HashMap(K,V,...).Entry.so" instead of "libfoo.so". Using
{} rather than {s} is a footgun, be careful!
Previous functionality is now restored.
closes#6523
Zig supports both Linux and Windows natively. Those are the main use
cases we are focusing on. Happy to accept mingw patches if they are
non-invasive, but we will not be hampering progress on the main use
cases with failing mingw CI builds.
Before this it was trying to copy all the files from the zig-cache dir
to the output dir, but in the current compiler architecture the cache
dir is also used for internal compiler files.
See #6552#6553#6483
Also fixes a regression introduced in
1d777e99588be047ec4d7650f048b043d6e52da0 of not converting an integer to
a string for a command line parameter.
This commit refactors free space analysis (and VM analysis) somewhat.
This is still far from perfect, but at least it's not using any
hardcoded values.
This commit also reorganizes different flushing bits here and there,
so that bit common to Exe and Obj are put in the common path, while
Exe-specific are behind an appropriate switch/if statement.
* Convert draft to generate all relevant segments and sections in right places
* Do not prealloc space in text blocks until we can NOP
* Write out LC_LOAD_DYLINKER command
* Add LC_LOAD_DYLIB command in order to specify to load libSystem
* Redo update decl exports (similar to Elf globals, globals need to be contiguous in
memory)
Implemented following Knuth's "Evaluation of Powers" chapter in TAOCP,
some extra complexity is needed to make sure there's no aliasing and
avoid allocating too many limbs.
A brief example to illustrate why the last point is important:
consider 10^123, since 10 is well within the limits of a single limb we
can safely say that the result will surely fit in:
⌈log2(10)⌉ bit * 123 = 492 bits = 7 limbs
A naive calculation using only the number of limbs yields:
1 limb * 123 = 123 limbs
The space savings are noticeable.
This reverts commit c8b4cc2ff9cf15a42f95b2302e02431a0004f5c8.
This includes many C++ standard library headers:
#include <algorithm>
#include <chrono>
#include <ctime>
#include <iomanip>
#include <ios>
#include <iostream>
#include <memory>
#include <sstream>
#include <string>
#include <tuple>
#include <type_traits>
#include <vector>
which adds more than a second of compile time for each file that
includes the header:
ir.cpp before: 8.041s
ir.cpp after: 6.847s
