oota-llvm.git
10 years agoRestore "[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors"
Robin Morisset [Thu, 18 Sep 2014 18:56:04 +0000 (18:56 +0000)]
Restore "[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors"

Summary:
This patch was originally in D5304 (I could not find a way to reopen that revision).
It was accepted, commited and broke the build bots because the overloading of
the constructor of ArrayRef for braced initializer lists is not supported by all
toolchains. I then reverted it, and propose this fixed version that uses a plain
C array instead in makeDMB (that array is then converted implicitly to an
ArrayRef, but that is not behind an ifdef). Could someone confirm me whether
initialization lists for plain C arrays are supported by every toolchain used
to build llvm ? Otherwise I can just initialize the array in the old way:
args[0] = ...; .. ; args[5] = ...;

Below is the description of the original patch:
```
I had only tested this code for ARMv7 and ARMv8. This patch adds several
fallback paths if the processor does not support dmb ish:
- dmb sy if a cortex-M with support for dmb
- mcr p15, #0, r0, c7, c10, #5 for ARMv6 (special instruction equivalent to a DMB)
These fallback paths were chosen based on the code for fence seq_cst.

Thanks to luqmana for having noticed this bug.
```

Test Plan: Added more cases to atomic-load-store.ll + make check-all

Reviewers: jfb, t.p.northover, luqmana

Subscribers: llvm-commits, aemerson

Differential Revision: http://reviews.llvm.org/D5386

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218066 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoReverting NFC changes from r218050. Instead, the warning was disabled for GCC in...
Aaron Ballman [Thu, 18 Sep 2014 17:34:23 +0000 (17:34 +0000)]
Reverting NFC changes from r218050. Instead, the warning was disabled for GCC in r218059, so these changes are no longer required.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218062 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[MCJIT] Fix a debugging-output formatting bug in RuntimeDyld.
Lang Hames [Thu, 18 Sep 2014 16:43:24 +0000 (16:43 +0000)]
[MCJIT] Fix a debugging-output formatting bug in RuntimeDyld.

The mismatched mask (7 vs (ColsPerRow-1)) could lead to partial lines being
printed out of place.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218061 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert part of r218041.
Frederic Riss [Thu, 18 Sep 2014 16:41:04 +0000 (16:41 +0000)]
Revert part of r218041.

The patch moved some logic around in an attempt to generate potentially more
DW_AT_declaration attributes. The patch was flawed though and it stopped
generating the attribute in some cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218060 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoDisable GCC's -Woverloaded-virtual in the configure+make build. Clang's is better.
David Blaikie [Thu, 18 Sep 2014 16:34:25 +0000 (16:34 +0000)]
Disable GCC's -Woverloaded-virtual in the configure+make build. Clang's is better.

Turns out Clang's -Woverloaded-virtual is enabled by -Wall in both CMake
and Configure builds. We were only explicitly specifying it (thus
enabling GCC's version of the warning) in the Configure build.

The specific case of interest is:

  struct base {
    virtual void func();
    virtual void func(int);
  };
  struct derived: base {
    virtual void func(); // GCC warns here, because this causes
                         // func(int) to be hidden
  };

I don't think that's worth getting fussed about (& Clang (indirectly
me... since I improved this warning in Clang) agrees or we would've made
the warning catch these cases.

Technically this could still lead to bugs/confusion if base had
func(int) and func(bool), derived overrode func(bool) and then a caller
with a derived object tried to call func(42) - it would silently call
func(bool). We should probably improve clang's warnings to catch this at
the call site at some point.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218059 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Bug 20982 - Avoid undefined left shift of negative value
Matt Arsenault [Thu, 18 Sep 2014 15:52:26 +0000 (15:52 +0000)]
R600: Bug 20982 - Avoid undefined left shift of negative value

I'm not sure what the hardware actually does, so don't
bother trying to fold it for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218057 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[SKX] Deriving rmb multiclasses from general one (avx512_icmp_packed_rmb and avx512_i...
Robert Khasanov [Thu, 18 Sep 2014 14:06:55 +0000 (14:06 +0000)]
[SKX] Deriving rmb multiclasses from general one (avx512_icmp_packed_rmb and avx512_icmp_cc_rmb).
Thanks Adam Nemet for notice about this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218051 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFixing a bunch of -Woverloaded-virtual warnings due to hiding getSubtargetImpl from...
Aaron Ballman [Thu, 18 Sep 2014 13:27:14 +0000 (13:27 +0000)]
Fixing a bunch of -Woverloaded-virtual warnings due to hiding getSubtargetImpl from the base class. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218050 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAlternative (to r216344) fix of gcc -Wpedantic.
Patrik Hagglund [Thu, 18 Sep 2014 11:52:57 +0000 (11:52 +0000)]
Alternative (to r216344) fix of gcc -Wpedantic.

As suggested by David Blaikie, this may be easier to read.

The original warning was:

../tools/llvm-cov/llvm-cov.cpp:53:49: error: ISO C++ forbids zero-size array 'argv' [-Werror=pedantic]
       std::string Invocation(std::string(argv[0]) + " " + argv[1]);

It seems to be the case that GCC's warning gets confused and thinks
'argv' is a declaration here. GCC bugzilla issue #61259.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218048 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAlways emit DW_AT_declaration attribute when the variable isn't a definition.
Frederic Riss [Thu, 18 Sep 2014 09:38:23 +0000 (09:38 +0000)]
Always emit DW_AT_declaration attribute when the variable isn't a definition.

Summary:
This doesn't show up today as we don't emit decalration only variables. This
will be tested when the followup patches implementing import of forward
declared entities lands in clang.

Reviewers: echristo, dblaikie, aprantl

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5382

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218041 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix DWARFUnitSection::getUnitForOffset().
Frederic Riss [Thu, 18 Sep 2014 09:38:15 +0000 (09:38 +0000)]
Fix DWARFUnitSection::getUnitForOffset().

The current code is only able to return the right unit if the passed offset
is the exact offset of a section. Generalize the search function by comparing
againt the offset of the next unit instead and by switching the search
algorithm to upper_bound.

This way, the unit returned is the first unit with a getNextUnitOffset()
strictly greater than the searched offset, which is exactly what we want.
Note that there is no need for testing the range of the resulting unit as
the offsets of a DWARFUnitSection are in a single contiguous range from
0 inclusive to lastUnit->getNextUnitOffset() exclusive.

Reviewers: dblaikie samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5262

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218040 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x86] Use PALIGNR for v4i32 and v2i64 blends when appropriate.
Chandler Carruth [Thu, 18 Sep 2014 09:00:25 +0000 (09:00 +0000)]
[x86] Use PALIGNR for v4i32 and v2i64 blends when appropriate.

There is no purpose in using it for single-input shuffles as
pshufd is just as fast and doesn't tie the two operands. This removes
a substantial amount of wrong-domain blend operations in SSSE3 mode. It
also completes the usage of PALIGNR for integer shuffles and addresses
one of the test cases Quentin hit with the new vector shuffle lowering.

There is still the question of whether and when to use this for floating
point shuffles. It is faster than shufps or shufpd but in the integer
domain. I don't yet really have a good heuristic here for when to use
this instruction for floating point vectors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218038 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x86] Add an SSSE3 run and check mode to the 128-bit v2 tests of the new
Chandler Carruth [Thu, 18 Sep 2014 08:33:04 +0000 (08:33 +0000)]
[x86] Add an SSSE3 run and check mode to the 128-bit v2 tests of the new
vector shuffle lowering. This will be needed for up-coming palignr
tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218037 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Remove custom versions of CCState::AnalyzeReturn() and CCState::AnalyzeCallRet...
Daniel Sanders [Thu, 18 Sep 2014 08:28:39 +0000 (08:28 +0000)]
[mips] Remove custom versions of CCState::AnalyzeReturn() and CCState::AnalyzeCallReturn().

Summary:
The N32/N64 ABI's return f128 values in $f0 and $f2 for hard-float and $v0 and
$a0 for soft-float. The registers used in the soft-float case differ from the
usual $v0, and $v1 specified for return values.

Both cases were previously handled by duplicating the CCState::AnalyzeReturn()
and CCState::AnalyzeCallReturn() functions and modifying them to delegate to
a different assignment function for f128 and further replace the register type
for the hard-float case. There is a simpler way to do both of these.

We now use the common functions and select an initial assignment function based
on whether the original type is f128 or not. We then handle the hard-float case
using CCBitConvertToType<>.

No functional change.

Reviewers: vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5269

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218036 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "[FastISel][AArch64] Fold bit test and branch into TBZ and TBNZ."
Juergen Ributzka [Thu, 18 Sep 2014 08:07:40 +0000 (08:07 +0000)]
Revert "[FastISel][AArch64] Fold bit test and branch into TBZ and TBNZ."

Reverting it until I have time to investigate a regression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218035 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix previous commit: [FastISel][AArch64] Simplify XALU multiplies.
Juergen Ributzka [Thu, 18 Sep 2014 07:26:26 +0000 (07:26 +0000)]
Fix previous commit: [FastISel][AArch64] Simplify XALU multiplies.

When folding the intrinsic flag into the branch or select we also have to
consider the fact if the intrinsic got simplified, because it changes the
flag we have to check for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218034 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Simplify XALU multiplies.
Juergen Ributzka [Thu, 18 Sep 2014 07:04:54 +0000 (07:04 +0000)]
[FastISel][AArch64] Simplify XALU multiplies.

Simplify {s|u}mul.with.overflow to {s|u}add.with.overflow when possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218033 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Followup commit for 218031 to handle negative offsets too.
Juergen Ributzka [Thu, 18 Sep 2014 07:04:49 +0000 (07:04 +0000)]
[FastISel][AArch64] Followup commit for 218031 to handle negative offsets too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218032 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Try to fold the offset into the add instruction when simplifying...
Juergen Ributzka [Thu, 18 Sep 2014 05:40:47 +0000 (05:40 +0000)]
[FastISel][AArch64] Try to fold the offset into the add instruction when simplifying a memory address.

Small optimization in 'simplifyAddress'. When the offset cannot be encoded in
the load/store instruction, then we need to materialize the address manually.
The add instruction can encode a wider range of immediates than the load/store
instructions. This change tries to fold the offset into the add instruction
first before materializing the offset in a register.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218031 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Fold 'AND' instruction during the address computation.
Juergen Ributzka [Thu, 18 Sep 2014 05:40:41 +0000 (05:40 +0000)]
[FastISel][AArch64] Fold 'AND' instruction during the address computation.

The 'AND' instruction could be used to mask out the lower 32 bits of a register.
If this is done inside an address computation we might be able to fold the
instruction into the memory instruction itself.

and  x1, x1, #0xffffffff   ---> ldrb x0, [x0, w1, uxtw]
ldrb x0, [x0, x1]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218030 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x86] Add an SSSE3 run to the v4 shuffle test.
Chandler Carruth [Thu, 18 Sep 2014 04:38:32 +0000 (04:38 +0000)]
[x86] Add an SSSE3 run to the v4 shuffle test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218028 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: prevent crash on ELF directives on COFF
Saleem Abdulrasool [Thu, 18 Sep 2014 04:28:29 +0000 (04:28 +0000)]
ARM: prevent crash on ELF directives on COFF

Certain directives are unsupported on Windows (some of which could/should be
supported).  We would not diagnose the use but rather crash during the emission
as we try to access the Target Streamer.  Add an assertion to prevent creating a
NULL reference (which is not permitted under C++) as well as a test to ensure
that we can diagnose the disabled directives.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218014 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x86] Initial step of teaching the new vector shuffle lowering about
Chandler Carruth [Thu, 18 Sep 2014 04:11:29 +0000 (04:11 +0000)]
[x86] Initial step of teaching the new vector shuffle lowering about
PALIGNR. This just adds it to the v8i16 and v16i8 lowering steps where
it is completely unmatched. It also introduces the logic for detecting
rotation shuffle masks even in the presence of single input or blend
masks and arbitrarily undef lanes.

I've added fairly comprehensive tests for the matching logic in v8i16
because the tests at that size are much easier to write and manage.

I've not checked the SSE2 code generated for these tests because the
code is *horrible*. It is absolute madness. Testing it will just make
the test brittle without giving any interesting improvements in the
correctness confidence.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218013 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM: use a more precise check for MachO
Saleem Abdulrasool [Thu, 18 Sep 2014 03:49:55 +0000 (03:49 +0000)]
ARM: use a more precise check for MachO

Rather than relying on support for a specific directive to determine if we are
targeting MachO, explicitly check the output format.

As an additional bonus, cleanup the caret diagnostic for the non-MachO case and
avoid the spurious error caused by not discarding the statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218012 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Fold bit test and branch into TBZ and TBNZ.
Juergen Ributzka [Thu, 18 Sep 2014 02:44:13 +0000 (02:44 +0000)]
[FastISel][AArch64] Fold bit test and branch into TBZ and TBNZ.

Teach selectBranch to fold bit test and branch into a single instruction (TBZ or
TBNZ).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218010 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd file to CMake build as well.
Eric Christopher [Thu, 18 Sep 2014 00:39:20 +0000 (00:39 +0000)]
Add file to CMake build as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218005 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd a new pass FunctionTargetTransformInfo. This pass serves as a
Eric Christopher [Thu, 18 Sep 2014 00:34:14 +0000 (00:34 +0000)]
Add a new pass FunctionTargetTransformInfo. This pass serves as a
shim between the TargetTransformInfo immutable pass and the Subtarget
via the TargetMachine and Function. Migrate a single call from
BasicTargetTransformInfo as an example and provide shims where TargetMachine
begins taking a Function to determine the subtarget.

No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218004 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix FastISel bug in boolean returns for PowerPC.
Samuel Antao [Wed, 17 Sep 2014 23:25:06 +0000 (23:25 +0000)]
Fix FastISel bug in boolean returns for PowerPC.

For PPC targets, FastISel does not take the sign extension information into account when selecting return instructions whose operands are constants. A consequence of this is that the return of boolean values is not correct. This patch fixes the problem by evaluating the sign extension information also for constants, forwarding this information to PPCMaterializeInt which takes this information to drive the sign extension during the materialization.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217993 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRemove unnecessary blank space (test commit)
Samuel Antao [Wed, 17 Sep 2014 22:47:28 +0000 (22:47 +0000)]
Remove unnecessary blank space (test commit)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217991 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoReapply fix in r217988 (reverted in r217989) and remove the alternative fix committed...
David Blaikie [Wed, 17 Sep 2014 22:27:36 +0000 (22:27 +0000)]
Reapply fix in r217988 (reverted in r217989) and remove the alternative fix committed in r217987.

This type isn't owned polymorphically (as demonstrated by making the
dtor protected and everything still compiling) so just address the
warning by protecting the base dtor and making the derived class final.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217990 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "Fix -Wnon-virtual-dtor warning introduced in r217982."
David Blaikie [Wed, 17 Sep 2014 22:17:59 +0000 (22:17 +0000)]
Revert "Fix -Wnon-virtual-dtor warning introduced in r217982."

An alternative fix was already committed.

This reverts commit r217988.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217989 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix -Wnon-virtual-dtor warning introduced in r217982.
David Blaikie [Wed, 17 Sep 2014 22:15:40 +0000 (22:15 +0000)]
Fix -Wnon-virtual-dtor warning introduced in r217982.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217988 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFixing the sanitizer build failure:
Chris Bieneman [Wed, 17 Sep 2014 22:09:38 +0000 (22:09 +0000)]
Fixing the sanitizer build failure:

http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/12868/steps/annotate/logs/stdio

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217987 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Custom lower sdiv by power-of-2.
Juergen Ributzka [Wed, 17 Sep 2014 21:55:55 +0000 (21:55 +0000)]
[FastISel][AArch64] Custom lower sdiv by power-of-2.

Emit an optimized instruction sequence for sdiv by power-of-2 depending on the
exact flag.

This fixes rdar://problem/18224511.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217986 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[llvm-objdump] clean up test cases now that build bots are green
Nick Kledzik [Wed, 17 Sep 2014 21:53:07 +0000 (21:53 +0000)]
[llvm-objdump] clean up test cases now that build bots are green

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217985 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm-cov: Push some more debug output into the View (NFC)
Justin Bogner [Wed, 17 Sep 2014 21:48:52 +0000 (21:48 +0000)]
llvm-cov: Push some more debug output into the View (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217984 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFixing a build error.
Chris Bieneman [Wed, 17 Sep 2014 21:06:59 +0000 (21:06 +0000)]
Fixing a build error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217983 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRefactoring SimplifyLibCalls to remove static initializers and generally cleaning...
Chris Bieneman [Wed, 17 Sep 2014 20:55:46 +0000 (20:55 +0000)]
Refactoring SimplifyLibCalls to remove static initializers and generally cleaning up the code.

Summary: This eliminates ~200 lines of code mostly file scoped struct definitions that were unnecessary.

Reviewers: chandlerc, resistor

Reviewed By: resistor

Subscribers: morisset, resistor, llvm-commits

Differential Revision: http://reviews.llvm.org/D5364

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217982 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInternalize common symbols when we can.
Rafael Espindola [Wed, 17 Sep 2014 20:41:13 +0000 (20:41 +0000)]
Internalize common symbols when we can.

This fixes pr20974.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217981 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Simplify mul to shift when possible.
Juergen Ributzka [Wed, 17 Sep 2014 20:35:41 +0000 (20:35 +0000)]
[FastISel][AArch64] Simplify mul to shift when possible.

This is related to rdar://problem/18369687.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217980 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoExclude known and bugzilled failures from UBSan bootstrap
Alexey Samsonov [Wed, 17 Sep 2014 20:17:52 +0000 (20:17 +0000)]
Exclude known and bugzilled failures from UBSan bootstrap

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217979 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Fold mul into add/sub and logical operations.
Juergen Ributzka [Wed, 17 Sep 2014 19:51:38 +0000 (19:51 +0000)]
[FastISel][AArch64] Fold mul into add/sub and logical operations.

Try to fold the multiply into the add/sub or logical operations (when
possible).

This is related to rdar://problem/18369687.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217978 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Fold mul into the address computation of memory operations.
Juergen Ributzka [Wed, 17 Sep 2014 19:19:31 +0000 (19:19 +0000)]
[FastISel][AArch64] Fold mul into the address computation of memory operations.

Teach 'computeAddress' to also fold multiplies into the address computation
(when possible).

This fixes rdar://problem/18369443.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217977 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm-cov: Rework the API for getting the coverage of a file (NFC)
Justin Bogner [Wed, 17 Sep 2014 18:23:47 +0000 (18:23 +0000)]
llvm-cov: Rework the API for getting the coverage of a file (NFC)

This encapsulates how we handle the coverage regions of a file or
function. In the old model, the user had to deal with nested regions,
so they needed to maintain their own auxiliary data structures to get
any useful information out of this. The new API provides a sequence of
non-overlapping coverage segments, which makes it possible to render
coverage information in a single pass and avoids a fair amount of
extra work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217975 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFixup for r217830. Don't do left shifts on negative values
Alexey Samsonov [Wed, 17 Sep 2014 18:23:07 +0000 (18:23 +0000)]
Fixup for r217830. Don't do left shifts on negative values

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217974 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors"
Robin Morisset [Wed, 17 Sep 2014 18:09:13 +0000 (18:09 +0000)]
Revert "[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors"

It is breaking the build on the buildbots but works fine on my machine, I revert
while trying to understand what happens (it appears to depend on the compiler used
to build, I probably used a C++11 feature that is not perfectly supported by some
of the buildbots).

This reverts commit feb3176c4d006f99af8b40373abd56215a90e7cc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217973 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Fold compare with zero and branch into CBZ and CBNZ.
Juergen Ributzka [Wed, 17 Sep 2014 18:05:34 +0000 (18:05 +0000)]
[FastISel][AArch64] Fold compare with zero and branch into CBZ and CBNZ.

This takes advanatage of the CBZ and CBNZ instruction to further optimize the
common null check pattern into a single instruction.

This is related to rdar://problem/18358882.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217972 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAnother required re-setting for MCStreamer::reset().
Yaron Keren [Wed, 17 Sep 2014 17:50:34 +0000 (17:50 +0000)]
Another required re-setting for MCStreamer::reset().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217970 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Remove assert
Matt Arsenault [Wed, 17 Sep 2014 17:48:32 +0000 (17:48 +0000)]
R600/SI: Remove assert

Since read2 / write2 are emitted for 4-byte aligned 8-byte
accesses, these are seen by the scheduler.

The DAG scheduler is semi-deprecated, so just
ignore these for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217969 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Rough first implementation of shouldClusterLoads
Matt Arsenault [Wed, 17 Sep 2014 17:48:30 +0000 (17:48 +0000)]
R600/SI: Rough first implementation of shouldClusterLoads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217968 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix float division-by-zero in R600 scheduler.
Alexey Samsonov [Wed, 17 Sep 2014 17:47:21 +0000 (17:47 +0000)]
Fix float division-by-zero in R600 scheduler.

This bug was reported by UBSan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217967 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[FastISel][AArch64] Improve branch selection to support all FP conditions.
Juergen Ributzka [Wed, 17 Sep 2014 17:46:47 +0000 (17:46 +0000)]
[FastISel][AArch64] Improve branch selection to support all FP conditions.

This adds the last two missing floating-point condition codes (FCMP_UEQ and
FCMP_ONE) also to the branch selection. In these two cases an additonal branch
instruction is required.

This also adds unit tests to checks all the different condition codes.

This is related o rdar://problem/18358882.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217966 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors
Robin Morisset [Wed, 17 Sep 2014 17:41:16 +0000 (17:41 +0000)]
[ARM, Fix] Fix emitLeading/TrailingFence on old ARM processors

Summary:
I had only tested this code for ARMv7 and ARMv8. This patch adds several
fallback paths if the processor does not support dmb ish:
- dmb sy if a cortex-M with support for dmb
- mcr p15, #0, r0, c7, c10, #5 for ARMv6 (special instruction equivalent to a DMB)
These fallback paths were chosen based on the code for fence seq_cst.

Thanks to luqmana for having noticed this bug.

Test Plan: Added more cases to atomic-load-store.ll + make check-all

Reviewers: jfb, t.p.northover, luqmana

Subscribers: aemerson, llvm-commits

Differential Revision: http://reviews.llvm.org/D5304

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217965 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Change formatting of printed FP immediates
Matt Arsenault [Wed, 17 Sep 2014 17:32:13 +0000 (17:32 +0000)]
R600/SI: Change formatting of printed FP immediates

Only 1 decimal place should be printed for inline immediates.
Other constants should be hex constants.

Does not include f64 tests because folding those inline
immediates currently does not work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217964 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[IndVarSimplify] Partially revert r217953 to see if this fixes the bots.
Chad Rosier [Wed, 17 Sep 2014 16:35:09 +0000 (16:35 +0000)]
[IndVarSimplify] Partially revert r217953 to see if this fixes the bots.

Specifically, disable widening of unsigned compare instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217962 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoLineIterator: Provide a variant that keeps blank lines
Justin Bogner [Wed, 17 Sep 2014 15:43:01 +0000 (15:43 +0000)]
LineIterator: Provide a variant that keeps blank lines

It isn't always useful to skip blank lines, as evidenced by the
somewhat awkward use of line_iterator in llvm-cov. This adds a knob to
control whether or not to skip blanks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217960 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Remove promotion of instructions to e64 forms.
Matt Arsenault [Wed, 17 Sep 2014 15:35:43 +0000 (15:35 +0000)]
R600/SI: Remove promotion of instructions to e64 forms.

Instructions are now generally selected to the e64 forms originally,
and shrunk down later. Rename foldOperands to legalizeOperands,
since that's really most of what it tries to do.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217959 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[IndVarSimplify] Widen loop compare instructions.
Chad Rosier [Wed, 17 Sep 2014 14:10:33 +0000 (14:10 +0000)]
[IndVarSimplify] Widen loop compare instructions.

This improves other optimizations such as LSR.  A sext may be added to the
compare's other operand, but this can often be hoisted outside of the loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217953 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[InstCombine] Fix wrong folding of constant comparison involving ahsr and negative...
Andrea Di Biagio [Wed, 17 Sep 2014 11:32:31 +0000 (11:32 +0000)]
[InstCombine] Fix wrong folding of constant comparison involving ahsr and negative quantities (PR20945).

Example:
define i1 @foo(i32 %a) {
  %shr = ashr i32 -9, %a
  %cmp = icmp ne i32 %shr, -5
  ret i1 %cmp
}

Before this fix, the instruction combiner wrongly thought that %shr
could have never been equal to -5. Therefore, %cmp was always folded to 'true'.
However, when %a is equal to 1, then %cmp evaluates to 'false'. Therefore,
in this example, it is not valid to fold %cmp to 'true'.
The problem was only affecting the case where the comparison was between
negative quantities where one of the quantities was obtained from arithmetic
shift of a negative constant.

This patch fixes the problem with the wrong folding (fixes PR20945).
With this patch, the 'icmp' from the example is now simplified to a
comparison between %a and 1. This still allows us to get rid of the arithmetic
shift (%shr).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217950 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd DIBuilder functions to build RAUWable DIVariables and DIFunctions.
Frederic Riss [Wed, 17 Sep 2014 09:28:34 +0000 (09:28 +0000)]
Add DIBuilder functions to build RAUWable DIVariables and DIFunctions.

Summary: These will be used to implement support for useful forward declarartions.

Reviewers: echristo, dblaikie, aprantl

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D5328

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217949 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd and update reset() and doInitialization() methods to MC* and passes.
Yaron Keren [Wed, 17 Sep 2014 09:25:36 +0000 (09:25 +0000)]
Add and update reset() and doInitialization() methods to MC* and passes.
This enables reusing a PassManager instead of re-constructing it every time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217948 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Add assembler support for the .set nodsp directive.
Toma Tabacu [Wed, 17 Sep 2014 09:01:54 +0000 (09:01 +0000)]
[mips] Add assembler support for the .set nodsp directive.

Summary: This directive is used to tell the assembler to reject DSP-specific instructions.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D5142

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217946 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm-cov: Fix a typo
Justin Bogner [Wed, 17 Sep 2014 08:12:12 +0000 (08:12 +0000)]
llvm-cov: Fix a typo

It doesn't make sense for this default parameter to be false, since
false makes the function a no-op.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217945 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x32] Fix function indirect calls
Pavel Chupin [Wed, 17 Sep 2014 07:09:23 +0000 (07:09 +0000)]
[x32] Fix function indirect calls

Summary: Zero-extend register to 64-bit for callq/jmpq.

Test Plan: 3 tests added

Reviewers: nadav, dschuff

Subscribers: llvm-commits, zinovy.nis

Differential Revision: http://reviews.llvm.org/D5355

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217942 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd move constructors/assignment to make MSVC happy after r217940
Justin Bogner [Wed, 17 Sep 2014 06:32:48 +0000 (06:32 +0000)]
Add move constructors/assignment to make MSVC happy after r217940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217941 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm-cov: Distinguish expansion/instantiation from SourceCoverageView
Justin Bogner [Wed, 17 Sep 2014 05:33:20 +0000 (05:33 +0000)]
llvm-cov: Distinguish expansion/instantiation from SourceCoverageView

SourceCoverageView currently has "Kind" and a list of child views, all
of which must have either an expansion or an instantiation Kind. In
addition to being an error-prone design, this makes it awkward to
differentiate between the two child types and adds a number of
optionally used members to the type.

Split the subview types into their own separate objects, and maintain
lists of each rather than one combined "Children" list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217940 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInstSimplify: Don't allow (x srem y) urem y -> x srem y
David Majnemer [Wed, 17 Sep 2014 04:16:35 +0000 (04:16 +0000)]
InstSimplify: Don't allow (x srem y) urem y -> x srem y

Let's consider the case where:
%x i16 = 32768
%y i16 = 384

%x srem %y = 65408
(%x srem %y) urem %y = 128

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217939 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInstSimplify: ((X % Y) % Y) -> (X % Y)
David Majnemer [Wed, 17 Sep 2014 03:34:34 +0000 (03:34 +0000)]
InstSimplify: ((X % Y) % Y) -> (X % Y)

Patch by Sonam Kumari!

Differential Revision: http://reviews.llvm.org/D5350

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217937 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[Object] keep trailing '\0' out of StringRef when parsing mach-o bindings
Nick Kledzik [Wed, 17 Sep 2014 01:51:43 +0000 (01:51 +0000)]
[Object] keep trailing '\0' out of StringRef when parsing mach-o bindings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217935 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago| -> ||
Richard Trieu [Wed, 17 Sep 2014 01:47:52 +0000 (01:47 +0000)]
| -> ||
No functional change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217934 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix identify_magic() with mach-o stub dylibs.
Nick Kledzik [Wed, 17 Sep 2014 00:53:44 +0000 (00:53 +0000)]
Fix identify_magic() with mach-o stub dylibs.

The wrong value was returned and the unittest did not cover the stub dylib case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217933 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[llvm-objdump] properly use c_str() with format("%s"). Improve getLibraryShortNameBy...
Nick Kledzik [Wed, 17 Sep 2014 00:25:22 +0000 (00:25 +0000)]
[llvm-objdump] properly use c_str() with format("%s").  Improve getLibraryShortNameByIndex() error handling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217930 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[X86] Use the generic AtomicExpandPass instead of X86AtomicExpandPass
Robin Morisset [Wed, 17 Sep 2014 00:06:58 +0000 (00:06 +0000)]
[X86] Use the generic AtomicExpandPass instead of X86AtomicExpandPass

This required a new hook called hasLoadLinkedStoreConditional to know whether
to expand atomics to LL/SC (ARM, AArch64, in a future patch Power) or to
CmpXchg (X86).

Apart from that, the new code in AtomicExpandPass is mostly moved from
X86AtomicExpandPass. The main result of this patch is to get rid of that
pass, which had lots of code duplicated with AtomicExpandPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217928 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[CodeGenPrepare][AddressingModeMatcher] The promotion mechanism was expecting
Quentin Colombet [Tue, 16 Sep 2014 22:36:07 +0000 (22:36 +0000)]
[CodeGenPrepare][AddressingModeMatcher] The promotion mechanism was expecting
instructions when truncate, sext, or zext were created. Fix that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217926 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[llvm-objdump] improve error reporting of bad mach-o ordinals
Nick Kledzik [Tue, 16 Sep 2014 22:03:13 +0000 (22:03 +0000)]
[llvm-objdump] improve error reporting of bad mach-o ordinals

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217909 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis add a reset method for WinCOFFObjectWriter, like other MC* classes.
Yaron Keren [Tue, 16 Sep 2014 21:31:04 +0000 (21:31 +0000)]
This add a reset method for WinCOFFObjectWriter, like other MC* classes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217907 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agotweak test case for debugging bot
Nick Kledzik [Tue, 16 Sep 2014 21:29:54 +0000 (21:29 +0000)]
tweak test case for debugging bot

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217906 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd back a fallback case for targets that do not or cannot implement getNoopForMachoT...
Owen Anderson [Tue, 16 Sep 2014 20:28:00 +0000 (20:28 +0000)]
Add back a fallback case for targets that do not or cannot implement getNoopForMachoTarget().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217899 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoHookup the MCSymbolizer to llvm-objdump’s disassembly for Mach-O files.
Kevin Enderby [Tue, 16 Sep 2014 18:00:57 +0000 (18:00 +0000)]
Hookup the MCSymbolizer to llvm-objdump’s disassembly for Mach-O files.

First step done in this commit is to get flush out enough of the
SymbolizerGetOpInfo() routine to symbolic an X86_64 hello world .o and
its loading of the literal string and call to printf.  Also the code to
symbolicate the X86_64_RELOC_SUBTRACTOR relocation and a test is also
added to show a slightly more complicated case.

Next will be to flush out enough of SymbolizerSymbolLookUp() to get the
literal string “Hello world” printed as a comment on the instruction that load
the pointer to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217893 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix typo
Matt Arsenault [Tue, 16 Sep 2014 18:00:23 +0000 (18:00 +0000)]
Fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217892 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd a missing return to operator=
Reid Kleckner [Tue, 16 Sep 2014 17:39:46 +0000 (17:39 +0000)]
Add a missing return to operator=

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217889 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix move-only type issues in Interpreter with MSVC
Reid Kleckner [Tue, 16 Sep 2014 17:28:15 +0000 (17:28 +0000)]
Fix move-only type issues in Interpreter with MSVC

MSVC 2012 cannot infer any move special members, but it will call them
if available. MSVC 2013 cannot infer move assignment. Therefore,
explicitly implement the special members for the ExecutionContext class
and its contained types.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217887 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[TableGen] Fully resolve class-instance values before defs in multiclasses
Adam Nemet [Tue, 16 Sep 2014 17:14:13 +0000 (17:14 +0000)]
[TableGen] Fully resolve class-instance values before defs in multiclasses

By class-instance values I mean 'Class<Arg>' in 'Class<Arg>.Field' or in
'Other<Class<Arg>>' (syntactically s SimpleValue).  This is to differentiate
from unnamed/anonymous record definitions (syntactically an ObjectBody) which
are not affected by this change.

Consider the testcase:

    class Struct<int i> {
      int I = !shl(i, 1);
      int J = !shl(I, 1);
    }

    class Class<Struct s> {
        int Class_J = s.J;
    }

    multiclass MultiClass<int i> {
      def Def : Class<Struct<i>>;
    }

    defm Defm : MultiClass<2>;

Before this fix, DefmDef.Class_J yields !shl(I, 1) instead of 8.

This is the sequence of events.  We start with this:

    multiclass MultiClass<int i> {
      def Def : Class<Struct<i>>;
    }

During ParseDef the anonymous object for the class-instance value is created:

    multiclass Multiclass<int i> {
      def anonymous_0 : Struct<i>;

      def Def : Class<NAME#anonymous_0>;
    }

Then class Struct<i> is added to anonymous_0.  Also Class<NAME#anonymous_0> is
added to Def:

    multiclass Multiclass<int i> {
      def anonymous_0 {
        int I = !shl(i, 1);
        int J = !shl(I, 1);
      }

      def Def {
        int Class_J = NAME#anonymous_0.J;
      }
    }

So far so good but then we move on to instantiating this in the defm
by substituting the template arg 'i'.

This is how the anonymous prototype looks after fully instantiating.

    defm Defm = {
      def Defmanonymous_0 {
         int I = 4;
         int J = !shl(I, 1);
      }

Note that we only resolved the reference to the template arg.  The
non-template-arg reference in 'J' has not been resolved yet.

Then we go on to instantiating the Def prototype:

      def DefmDef {
         int Class_J = NAME#anonymous_0.J;
      }

Which is resolved to Defmanonymous_0.J and then to !shl(I, 1).

When we fully resolve each record in a defm, Defmanonymous_0.J does get set
to 8 but that's too late for its use.

The patch adds a new attribute to the Record class that indicates that this
def is actually a class-instance value that may be *used* by other defs in a
multiclass.  (This is unlike regular defs which don't reference each other and
thus can be resolved indepedently.)  They are then fully resolved before the
other defs while the multiclass is instantiated.

I added vg_leak to the new test.  I am not sure if this is necessary but I
don't think I have a way to test it.  I can also check in without the XFAIL
and let the bots test this part.

Also tested that X86.td.expanded and AAarch64.td.expanded were unchange before
and after this change.  (This issue triggering this problem is a WIP patch.)

Part of <rdar://problem/17688758>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217886 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[X86] Improve comment
Adam Nemet [Tue, 16 Sep 2014 17:14:10 +0000 (17:14 +0000)]
[X86] Improve comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217885 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM load/store optimizer: Don't materialize a new base register with
Moritz Roth [Tue, 16 Sep 2014 16:25:07 +0000 (16:25 +0000)]
ARM load/store optimizer: Don't materialize a new base register with
ADDS/SUBS unless it's safe to clobber the condition flags.

If the merged instructions are in a range where the CPSR is live,
e.g. between a CMP -> Bcc, we can't safely materialize a new base
register.

This problem is quite rare, I couldn't come up with a test case and I've
never actually seen this happen in the tests I'm running - there is a
potential trigger for this in LNT/oggenc (spills being inserted between
a CMP/Bcc), but at the moment this isn't being merged. I'll try to
reduce that into a small test case once I've committed my upcoming patch
to make merging less conservative.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217881 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSpell out a move ctor. Even the 2013 vintage of MSVC cannot synthesize move ctors.
Benjamin Kramer [Tue, 16 Sep 2014 16:16:39 +0000 (16:16 +0000)]
Spell out a move ctor. Even the 2013 vintage of MSVC cannot synthesize move ctors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217879 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInterpreter: Hack around a series of bugs in MSVC 2012 that copies around this
Benjamin Kramer [Tue, 16 Sep 2014 15:26:41 +0000 (15:26 +0000)]
Interpreter: Hack around a series of bugs in MSVC 2012 that copies around this
move-only struct.

I feel terrible now, but at least it's shielded away from proper compilers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217875 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Improve the error messages given by MipsAsmParser.
Toma Tabacu [Tue, 16 Sep 2014 15:00:52 +0000 (15:00 +0000)]
[mips] Improve the error messages given by MipsAsmParser.

Summary: Changed error messages to be more informative and to resemble other clang/llvm error messages (first letter is lower case, no ending punctuation) and updated corresponding tests.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D5065

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217873 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake DWARFUnitSection final and change base class to non-virtual protected destructor.
Frederic Riss [Tue, 16 Sep 2014 12:58:01 +0000 (12:58 +0000)]
Make DWARFUnitSection final and change base class to non-virtual protected destructor.

As per dblaikie suggestion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217871 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Move 32-bit ADDiu instruction alias from Mips64InstrInfo.td to MipsInstrInfo.td.
Toma Tabacu [Tue, 16 Sep 2014 10:19:03 +0000 (10:19 +0000)]
[mips] Move 32-bit ADDiu instruction alias from Mips64InstrInfo.td to MipsInstrInfo.td.

Patch by Vasileios Kalintiris.

Differential Revision: http://reviews.llvm.org/D5244

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217868 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Marked the ADDi instruction aliases as not available in Mips32R6 and Mips64R6.
Toma Tabacu [Tue, 16 Sep 2014 09:26:09 +0000 (09:26 +0000)]
[mips] Marked the ADDi instruction aliases as not available in Mips32R6 and Mips64R6.

Patch by Vasileios Kalintiris.

Differential Revision: http://reviews.llvm.org/D5242

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217867 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARMAsmBackend uses a factory method to generate binary file format specific
Joe Abbey [Tue, 16 Sep 2014 09:18:23 +0000 (09:18 +0000)]
ARMAsmBackend uses a factory method to generate binary file format specific
objects.  There were a few FIXMEs in ARMAsmBackend.cpp suggesting the class
definitions should be in a separate file.  Starting with ARMAsmBackend, the
class definition has been put in a header file, and #includes reduced.  Each
sub-type of ARMAsmBackend is now in its own header file.

Derived types have been painted with a different color of bike-shed:

  s/DarwinARMAsmBackend/ARMAsmBackendDarwin/g
  s/ARMWinCOFFAsmBackend/ARMAsmBackendWinCOFF/g
  s/ELFARMAsmBackend/ARMAsmBackendELF/g

Finally, clang-format has been run across ARMAsmBackend.cpp

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217866 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[InstCombine] Remove redundant test case.
Tilmann Scheller [Tue, 16 Sep 2014 08:50:10 +0000 (08:50 +0000)]
[InstCombine] Remove redundant test case.

Patch by Sonam Kumari!

Differential Revision: http://reviews.llvm.org/D5284

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217865 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAVX-512: added cost for some AVX-512 instructions
Elena Demikhovsky [Tue, 16 Sep 2014 07:57:37 +0000 (07:57 +0000)]
AVX-512: added cost for some AVX-512 instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217863 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agollvm-cov: Rename a variable and clean up its usage
Justin Bogner [Tue, 16 Sep 2014 06:21:57 +0000 (06:21 +0000)]
llvm-cov: Rename a variable and clean up its usage

Offset is a terrible name for an indentation / nesting level, and it
confuses me every time I look at this code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217861 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agotweak test case to help build bot
Nick Kledzik [Tue, 16 Sep 2014 04:51:38 +0000 (04:51 +0000)]
tweak test case to help build bot

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217860 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix BasicTTI::getCmpSelInstrCost to deal with illegal vector types
Hal Finkel [Tue, 16 Sep 2014 04:35:50 +0000 (04:35 +0000)]
Fix BasicTTI::getCmpSelInstrCost to deal with illegal vector types

The default implementation of getCmpSelInstrCost, which provides the cost of
icmp/fcmp/select instructions, did not deal sensibly with illegal vector types
that were scalarized. We'd ask for the legalization cost of the vector type,
which would return something like (4, f64) given an input of <4 x double>, and
we'd then check the TLI status of the ISD opcode on that scalar type. This would
result in querying (ISD::VSELECT, f64), for example. Amusingly enough,
ISD::VSELECT on scalar types is marked as Legal by default (as with most other
operations), and most backends never change this because VSELECT is never
generated on scalars. However, seeing the resulting operation as Legal, we'd
neglect to add the scalarization cost before returning. The result is that we'd
grossly under-estimate the cost of cmps/selects on illegal vector types.

Now, if type legalization clearly results in scalarization, we skip the early
return and add the scalarization cost.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217859 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoyaml2obj: Support bigobj
David Majnemer [Tue, 16 Sep 2014 03:52:46 +0000 (03:52 +0000)]
yaml2obj: Support bigobj

Teach yaml2obj how to make a bigobj COFF file.  Like the rest of LLVM,
we automatically decide whether or not to use regular COFF or bigobj
COFF on the fly depending on how many sections the resulting object
would have.

This ends the task of adding bigobj support to LLVM.

N.B. This was tested by forcing yaml2obj to be used in bigobj mode
regardless of the number of sections.  While a dedicated test was
written, the smallest I could make it was 36 MB (!) of yaml and it still
took a significant amount of time to execute on a powerful machine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217858 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agotweak test case to help solve why failing on one build bot
Nick Kledzik [Tue, 16 Sep 2014 02:33:36 +0000 (02:33 +0000)]
tweak test case to help solve why failing on one build bot

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217856 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[x86] Remove a FIXME that doesn't make any sense. Only the lanes feeding
Chandler Carruth [Tue, 16 Sep 2014 02:16:42 +0000 (02:16 +0000)]
[x86] Remove a FIXME that doesn't make any sense. Only the lanes feeding
the blend that is matched by this are "used" in any sense, and so any
build_vector or other nodes feeding these will already drop other lanes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217855 91177308-0d34-0410-b5e6-96231b3b80d8