Use an APInt to handle pointers of arbitrary width, let
accumulateConstantOffset handle overflow issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273126 91177308-0d34-0410-b5e6-96231b3b80d8
We currently only allow exact matches of shuffle mask patterns during target shuffle combining.
This patch relaxes this to permit SM_SentinelUndef in the combined shuffle to always be accepted as well as allowing exact matching of the SM_SentinelZero value.
I've adjusted some tests that were requiring exact shuffle masks to now include undef values.
Differential Revision: http://reviews.llvm.org/D21495
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273119 91177308-0d34-0410-b5e6-96231b3b80d8
Passes to fix three hardware errata that appear on some LEON processor variants.
The instructions FSMULD, FMULS and FDIVS do not work as expected on some LEON processors. This change allows those instructions to be substituted for alternatives instruction sequences that are known to work.
These passes only run when selected individually, or as part of a processor defintion. They are not included in general SPARC processor compilations for non-LEON processors or for those LEON processors that do not have these hardware errata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273108 91177308-0d34-0410-b5e6-96231b3b80d8
Summary:
JR is an alias of JALR with $rd=0 in the R6 ISA. Also, this fixes recursive
builds in MIPS32R6.
Reviewers: dsanders, sdardis
Subscribers: jfb, dschuff, dsanders, sdardis, llvm-commits
Differential Revision: http://reviews.llvm.org/D21370
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273085 91177308-0d34-0410-b5e6-96231b3b80d8
CodeGen has hooks that allow targets to emit specialized code instead
of calls to memcmp, memchr, strcpy, stpcpy, strcmp, strlen, strnlen.
When ASan/MSan/TSan/ESan is in use, this sidesteps its interceptors, resulting
in uninstrumented memory accesses. To avoid that, make these sanitizers
mark the calls as nobuiltin.
Differential Revision: http://reviews.llvm.org/D19781
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273083 91177308-0d34-0410-b5e6-96231b3b80d8
Access it through -passes=print-lcg-dot
Let me know any suggestions for changing the rendering; I'm not
particularly attached to what is implemented here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273082 91177308-0d34-0410-b5e6-96231b3b80d8
Don't use AllocateStack because kernel arguments have nothing
to do with the stack. The ensureMaxAlignment call was still
changing the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273080 91177308-0d34-0410-b5e6-96231b3b80d8
The way we elide max expressions when computing trip counts is incorrect
-- it breaks cases like this:
```
static int wrapping_add(int a, int b) {
return (int)((unsigned)a + (unsigned)b);
}
void test() {
volatile int end_buf = 2147483548; // INT_MIN - 100
int end = end_buf;
unsigned counter = 0;
for (int start = wrapping_add(end, 200); start < end; start++)
counter++;
print(counter);
}
```
Note: the `NoWrap` variable that was being tested has little to do with
the values flowing into the max expression; it is a property of the
induction variable.
test/Transforms/LoopUnroll/nsw-tripcount.ll was added to solely test
functionality I'm reverting in this change, so I've deleted the test
fully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273079 91177308-0d34-0410-b5e6-96231b3b80d8
This is a functional change for LLE and LDist. The other clients (LV,
LVerLICM) already had this explicitly enabled.
The temporary boolean parameter to LAA is removed that allowed turning
off speculation of symbolic strides. This makes LAA's caching interface
LAA::getInfo only take the loop as the parameter. This makes the
interface more friendly to the new Pass Manager.
The flag -enable-mem-access-versioning is moved from LV to a LAA which
now allows turning off speculation globally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273064 91177308-0d34-0410-b5e6-96231b3b80d8
This should select to s_trap, but that requires
additonal work to setup and enable the trap handler.
For now emit s_endpgm so bugpoint stops getting stuck
on the unsupported call to abort.
Emit a warning that this will only terminate the wave and
not really trap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273062 91177308-0d34-0410-b5e6-96231b3b80d8
Darwin added support in its Xcode 8.0 tools (released in the beta) for static
library table of contents with 64-bit offsets to the archive members. The
change is very straight forward. The table of contents member is named
___.SYMDEF_64 or "___.SYMDEF_64 SORTED" and same layout is used but with
fields using 64 bit values instead of 32 bit values.
rdar://26869808
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273058 91177308-0d34-0410-b5e6-96231b3b80d8
An incomplete member pointer type will always have a size of zero, so we
don't need an extra flag. Credit to David Majnemer for the idea.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273057 91177308-0d34-0410-b5e6-96231b3b80d8
Currently, frontends which emit source-based code coverage have to
duplicate logic to encode filenames and raw coverage mappings properly.
This violates an abstraction layer and forces frontends to copy tricky
code.
Introduce llvm::coverage::encodeFilenamesAndRawMappings() to take care
of this.
This will help us experiment with zlib-compressing coverage mapping
data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273055 91177308-0d34-0410-b5e6-96231b3b80d8
readFunctionRecords is used to iterate through the entries of the
coverage mapping section. Instead of expecting the function to update
the iterator through a `const char *&` parameter, just return the
updated iterator.
This will help us experiment with zlib-compressing coverage mapping
data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273052 91177308-0d34-0410-b5e6-96231b3b80d8
64-bit PDBs never have FPO data. They have xdata instead.
Also improve error recovery of stream summary dumping while I'm here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273046 91177308-0d34-0410-b5e6-96231b3b80d8
Reapply r272987. Condition should be in terms of the destination type,
and the flags should not be copied.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@273045 91177308-0d34-0410-b5e6-96231b3b80d8
