Add missing check for presence of target data.

This avoids a crash in visitAllocaInst when target data isn't available.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164539 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing : in CHECK line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164540 91177308-0d34-0410-b5e6-96231b3b80d8
Rather then have a wrapper function, have tblgen instantiate the implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164548 91177308-0d34-0410-b5e6-96231b3b80d8
Specify MachinePointerInfo as refering to the argument value and offset of the
store when handling byval arguments. Thus preventing reordering of the store
with load with post-RA scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164553 91177308-0d34-0410-b5e6-96231b3b80d8
Move all the calls to AA.getTargetLibraryInfo() to using a TLI member variable.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164560 91177308-0d34-0410-b5e6-96231b3b80d8
Teach DSE that strcpy, strncpy, strcat and strncat are all stores which may be
dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164561 91177308-0d34-0410-b5e6-96231b3b80d8
Clear UNIVERSAL_SDK_PATH setting when building host tools.  <rdar://12360497>

I also moved the SDKROOT setting into the make flags, since clearing it from
the environment isn't good enough to override a setting on the make command
line.  That hasn't been a problem but it could be, and it's good to be
consistent with the way UNIVERSAL_SDK_PATH is handled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164565 91177308-0d34-0410-b5e6-96231b3b80d8
Rather then have a wrapper function, have tblgen instantiate the implementation.
Also remove an unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164567 91177308-0d34-0410-b5e6-96231b3b80d8
Typo.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164570 91177308-0d34-0410-b5e6-96231b3b80d8
Mark jump tables in code sections with DataRegion directives.

Even out-of-line jump tables can be in the code section, so mark them
as data-regions for those targets which support the directives.

rdar://12362871&12362974

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164571 91177308-0d34-0410-b5e6-96231b3b80d8
Remove unused name of variable to quiet a warning. Also canonicalize a
declaration to use the same form as in the rest of the file. No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164576 91177308-0d34-0410-b5e6-96231b3b80d8
ARM: 'add Rd, pc, #imm' is an alias for 'adr Rd, #imm'.

rdar://9795790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164577 91177308-0d34-0410-b5e6-96231b3b80d8
Unit tests for IntegerDivision. Currently, just a basic sanity check to ensure that the code was generated properly. Future work would be finding some way to test the actual result that would be computed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164582 91177308-0d34-0410-b5e6-96231b3b80d8
Don't forget that strcpy and friends return a pointer to the destination, so
it's not a dead store if that pointer is used. Whoops!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164583 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a crash in SROA. This was reported independently by Takumi and
David (I think), but I would appreciate folks verifying that this fixes
the big crasher.

I'm still working on a reduced test case, but because this was causing
problems I wanted to get the fix checked in quickly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164585 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a -Wparentheses warning in the mingw build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164587 91177308-0d34-0410-b5e6-96231b3b80d8
Fix an illegal tailcall opt where the callee returns a double via xmm while caller returns x86_fp80 via st0. rdar://12229511

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164588 91177308-0d34-0410-b5e6-96231b3b80d8
Change the way the lint sanity checking pass detects misaligned memory accesses.
Previously it was only be able to detect problems if the pointer was a numerical
value (eg inttoptr i32 1 to i32*), but not if it was an alloca or globa.  The
reason was the use of ComputeMaskedBits: imagine you have "alloca i8, align 2",
and ask ComputeMaskedBits what it knows about the bits of the alloca pointer.
It can tell you that the bottom bit is known zero (due to align 2) but it can't
tell you that bit 1 is known one.  That's because the address could be an even
multiple of 2 rather than an odd multiple, eg it might be a multiple of 4.  Thus
trying to use KnownOne is ineffective in the case of an alloca as it will never
have any bits set.  Instead look explicitly for constant offsets from allocas
and globals.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164595 91177308-0d34-0410-b5e6-96231b3b80d8
Fix a case where SROA did not correctly detect dead PHI or selects due
to chains or cycles between PHIs and/or selects. Also add a couple of
really nice test cases reduced from Kostya's reports in PR13905 and
PR13906. Both are fixed by this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164596 91177308-0d34-0410-b5e6-96231b3b80d8
Consistently specify the assembly variant to MatchInstructionImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164611 91177308-0d34-0410-b5e6-96231b3b80d8