bother checking if a region is safe to use. In
cases where regions need to be synthesized rather
than properly allocated, the memory reads required
to determine whether the area is used are
- insufficient, because intermediate locations
could be in use, and
- unsafe, because on some platforms reading from
memory can trigger events.
All this only makes a difference on platforms
where memory allocation in the target is impossible.
Behavior on platforms where it is possible should
stay the same.
<rdar://problem/14023970>
llvm-svn: 185046
Armed with a much better understanding of what
TemplateSpecializationTypeLoc::initializeArgLocs actually does, I now
understand that it's fine to just use an empty TemplateArgumentLocInfo
for Integral, Declaration, and NullPtr TemplateArguments.
Fixes PR14281. (The testcases are actually derived from libcxx_test in
deduction-crash.cpp because the original testcase was impossible to reduce.)
llvm-svn: 185038
Currently inside APFloat fcNormal still implies the old definition of Normal
(i.e. isFiniteNonZero) instead of the proper IEEE-754R definition that the
external method isNormal() uses.
This patch prepares for the internal switch inside APFloat by converting all
references that check if a category is fcNormal directly with an indirect call
via isFiniteNonZero().
llvm-svn: 185036
side-effect is not sequenced before its value computation. Also fix a
mishandling of ?: expressions where the condition is constant that was
exposed by the tests for this.
llvm-svn: 185035
Option groups don't have prefixes. Option dumping is basically dead
code unless there is something wrong with the option table, so this
isn't an important crasher.
llvm-svn: 185031
(Currently, ARM 'this'-returns are handled in the standard calling convention case by treating R0 as preserved and doing some extra magic in LowerCallResult; this may not apply to calling conventions added in the future so this patch provides and documents an interface for indicating such)
llvm-svn: 185024
They are mostly duplicated and got out of sync during the PathV1 removal. We
should factor the code somewhere, but for now a FIXME will do.
llvm-svn: 185019
The old implementation of ms_struct in RecordLayoutBuilder was a
complete mess: it depended on complicated conditionals which didn't
really reflect the underlying logic, and placed a burden on users of
the resulting RecordLayout. This commit rips out almost all of the
old code, and replaces it with simple checks in
RecordLayoutBuilder::LayoutBitField.
This commit also fixes <rdar://problem/14252115>, a bug where class
inheritance would cause us to lay out bitfields incorrectly.
llvm-svn: 185018
Match up with top’s implementation on recent Cab as API has changed a bit.
Tested the same binary running on Zin as well. Tested ARM binary on iOS as well.
llvm-svn: 185017
The assembly should be generic, but at least currently R600 only supports
32-bit stores of [u]int1/4, and I believe that only global is well-supported.
R600 lowers the 8/16 component stores to multiple 4-component stores.
The unoptimized C versions of the other stuff is left in place.
Patch by: Aaron Watry
llvm-svn: 185009
The assembly should be generic, but at least currently R600 only supports
32-bit loads of int1/4, and I believe that only global is well-supported.
R600 lowers the 8/16 component vectors to multiple 4-bit loads.
The unoptimized C versions of the other stuff is left in place.
Patch by: Aaron Watry
llvm-svn: 185008
Squashed commit of the following:
commit a0df0a0e86c55c1bdc0b9c0f5a739e5adef4b056
Author: Aaron Watry <awatry@gmail.com>
Date: Mon Apr 15 18:42:04 2013 -0500
libclc: Rename clz.ll to clz_if.ll to ensure it gets built.
configure.py treats files that have the same name with the .cl and .ll
extensions as overriding eachother.
E.g. If you have clz.cl and clz.ll both specified to be built in the same
SOURCES file, only the first file listed will actually be built.
Since the contents of clz.ll were an interface that is implemented in
clz_impl.ll, rename clz.ll to clz_if.ll to make sure that the interface is
built.
commit 931b62bed05c58f737de625bd415af09571a6a5a
Author: Aaron Watry <awatry@gmail.com>
Date: Sat Apr 13 12:32:54 2013 -0500
libclc: llvm assembly implementation of clz
Untested... currently crashes in the same manner as add_sat.
commit 6ef0b7b0b6d2e5584086b4b9a9243743b2e0538f
Author: Aaron Watry <awatry@gmail.com>
Date: Sat Mar 23 12:35:27 2013 -0500
libclc: Add stub clz builtin
For scalar int/uint, attempt to use the clz llvm builtin.. for all others
return 0 until an actual implementation is finished.
Patch by: Aaron Watry
llvm-svn: 185004
For any GENTYPE that isn't scalar, we need to implement a mixed
vector/scalar version of clamp/max.
This depends on the min() patches I sent to the list a few minutes ago.
Patch by: Aaron Watry
llvm-svn: 185003
Checks if the current GENTYPE is scalar, and if not, then defines a separate
implementation of the function which casts the second arg to vector before
proceeding.
Patch by: Aaron Watry
llvm-svn: 185002
configure.py allows overloading *.cl with *.ll, but will only ever build
the first file listed in SOURCES of ${file}.cl and ${file}.ll
add_sat, sub_sat, (and the soon to be submitted clz) all define interfaces in
${function_name}.ll which are implemented in ${function_name}_impl.ll.
Renaming the interface files is enough to get them to build again, fixing
CL usage of these functions.
Tested on clover/r600g.
Patch by: Aaron Watry
llvm-svn: 185000
This implementation does a lot of bit shifting and masking. Suffice to say,
this is somewhat suboptimal... but it does look to produce correct results
(after the piglit tests were corrected for sign extension issues).
Someone who knows LLVM better than I could re-write this more efficiently.
Patch by: Aaron Watry
llvm-svn: 184996
