Fix 80-column violation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165089 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused function that used to get itineraries from SubTargetFeatures. This is done from MCSubTargetInfo these days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165092 91177308-0d34-0410-b5e6-96231b3b80d8
Fix doxygen comment to match function name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165094 91177308-0d34-0410-b5e6-96231b3b80d8
Revert 165051-165049 while looking into the foreach.m failure in
more detail.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165099 91177308-0d34-0410-b5e6-96231b3b80d8
Try to use a better set of abstractions for computing the alignment
necessary during rewriting. As part of this, fix a real think-o here
where we might have left off an alignment specification when the address
is in fact underaligned. I haven't come up with any way to trigger this,
as there is always some other factor that reduces the alignment, but it
certainly might have been an observable bug in some way I can't think
of. This also slightly changes the strategy for placing explicit
alignments on loads and stores to only do so when the alignment does not
match that required by the ABI. This causes a few redundant alignments
to go away from test cases.

I've also added a couple of tests that really push on the alignment that
we end up with on loads and stores. More to come here as I try to fix an
underlying bug I have conjectured and produced test cases for, although
it's not clear if this bug is the one currently hitting dragonegg's
gcc47 bootstrap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165100 91177308-0d34-0410-b5e6-96231b3b80d8
Fix an issue where we failed to adjust the alignment constraint on
a memcpy to reflect that '0' has a different meaning when applied to
a load or store. Now we correctly use underaligned loads and stores for
the test case added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165101 91177308-0d34-0410-b5e6-96231b3b80d8
Fixed a bug in the ExecutionDependencyFix pass that caused dependencies to not propagate through implicit defs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165102 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: prepare for migration to new memory_order enum values (ABI compatible)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165107 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: update the test for new atomic enums


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165108 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: update the test for new atomic enums


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165109 91177308-0d34-0410-b5e6-96231b3b80d8
Set up MCSchedModel after detecting the CPU type in X86SubTarget.

Corrects a problem whereby MCSchedModel was not being set up when
the CPU type was auto-detected.

Patch by Andy Zhang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165122 91177308-0d34-0410-b5e6-96231b3b80d8
A DAGCombine optimization for mergeing consecutive stores to memory. The optimization
is not profitable in many cases because modern processors perform multiple stores
in parallel and merging stores prior to merging requires extra work. We handle two main cases:

1. Store of multiple consecutive constants:
  q->a = 3;
  q->4 = 5;
In this case we store a single legal wide integer.

2. Store of multiple consecutive loads:
  int a = p->a;
  int b = p->b;
  q->a = a;
  q->b = b;
In this case we load/store either ilegal vector registers or legal wide integer registers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165125 91177308-0d34-0410-b5e6-96231b3b80d8
This Patch corrects a problem whereby the optimization to use a faster divide
instruction (for Intel Atom) was not being done by Clang, because
the type context used by Clang is not the default context.

It fixes the problem by getting the global context types for each div/rem
instruction in order to compare them against the types in the BypassTypeMap.

Tests for this will be done as a separate patch to Clang.

Patch by Tyler Nowicki.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165126 91177308-0d34-0410-b5e6-96231b3b80d8
Implement .rel relocation for R_ARM_ABS32 in MCJIT.

Patch by Amara Emerson.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165128 91177308-0d34-0410-b5e6-96231b3b80d8
Add methods which query for the specific attribute instead of using the
enums. This allows for better encapsulation of the Attributes class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165132 91177308-0d34-0410-b5e6-96231b3b80d8
Remove assert that's too restrictive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165134 91177308-0d34-0410-b5e6-96231b3b80d8
No need to call functions which do the same thing as the default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165135 91177308-0d34-0410-b5e6-96231b3b80d8
Add getAsUnsignedInteger test case that checks that known bad values are rejected

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165136 91177308-0d34-0410-b5e6-96231b3b80d8
Don't call getAsUnsignedInteger directly, it fails to compile if uint64_t is not "unsigned long long".

while there add more test cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165140 91177308-0d34-0410-b5e6-96231b3b80d8
Typos.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165141 91177308-0d34-0410-b5e6-96231b3b80d8