Commit Graph

107975 Commits

Author SHA1 Message Date
Chandler Carruth
3ff76847ba [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
2014-09-18 04:11:29 +00:00
Saleem Abdulrasool
5bf65590d0 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
2014-09-18 03:49:55 +00:00
Juergen Ributzka
710fc316fb [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
2014-09-18 02:44:13 +00:00
Eric Christopher
12a9dbd322 Add file to CMake build as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218005 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-18 00:39:20 +00:00
Eric Christopher
757c90dd00 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
2014-09-18 00:34:14 +00:00
Samuel Antao
6693d0de3e 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
2014-09-17 23:25:06 +00:00
Samuel Antao
0c3b56bdab Remove unnecessary blank space (test commit)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217991 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 22:47:28 +00:00
David Blaikie
52675f31e5 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
2014-09-17 22:27:36 +00:00
David Blaikie
f8b9ec99b8 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
2014-09-17 22:17:59 +00:00
David Blaikie
be048a0770 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
2014-09-17 22:15:40 +00:00
Chris Bieneman
0a1dc0d78f 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
2014-09-17 22:09:38 +00:00
Juergen Ributzka
7516444a26 [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
2014-09-17 21:55:55 +00:00
Nick Kledzik
69e88e8b40 [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
2014-09-17 21:53:07 +00:00
Justin Bogner
5fbcc30184 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
2014-09-17 21:48:52 +00:00
Chris Bieneman
6ba12f9f72 Fixing a build error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217983 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 21:06:59 +00:00
Chris Bieneman
14f9a54a8b 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
2014-09-17 20:55:46 +00:00
Rafael Espindola
2bfef929c0 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
2014-09-17 20:41:13 +00:00
Juergen Ributzka
580875d39d [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
2014-09-17 20:35:41 +00:00
Alexey Samsonov
dc4eb3d6dc 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
2014-09-17 20:17:52 +00:00
Juergen Ributzka
46d6fd2908 [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
2014-09-17 19:51:38 +00:00
Juergen Ributzka
5461af97bc [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
2014-09-17 19:19:31 +00:00
Justin Bogner
b3edb56485 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
2014-09-17 18:23:47 +00:00
Alexey Samsonov
e5d8abe4f1 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
2014-09-17 18:23:07 +00:00
Robin Morisset
e2ff4e489b 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
2014-09-17 18:09:13 +00:00
Juergen Ributzka
07c9ae576c [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
2014-09-17 18:05:34 +00:00
Yaron Keren
5607f8d084 Another required re-setting for MCStreamer::reset().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217970 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 17:50:34 +00:00
Matt Arsenault
4ad9b914ee 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
2014-09-17 17:48:32 +00:00
Matt Arsenault
3143460f91 R600/SI: Rough first implementation of shouldClusterLoads
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217968 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 17:48:30 +00:00
Alexey Samsonov
8df2caebe2 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
2014-09-17 17:47:21 +00:00
Juergen Ributzka
17e0ee5078 [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
2014-09-17 17:46:47 +00:00
Robin Morisset
30486fa3de [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
2014-09-17 17:41:16 +00:00
Matt Arsenault
507636288f 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
2014-09-17 17:32:13 +00:00
Chad Rosier
c6b1a7e577 [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
2014-09-17 16:35:09 +00:00
Justin Bogner
0a277ea23d 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
2014-09-17 15:43:01 +00:00
Matt Arsenault
27608d8393 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
2014-09-17 15:35:43 +00:00
Chad Rosier
c5f6b53403 [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
2014-09-17 14:10:33 +00:00
Andrea Di Biagio
a34cab9be7 [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
2014-09-17 11:32:31 +00:00
Frederic Riss
2ca5f03112 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
2014-09-17 09:28:34 +00:00
Yaron Keren
c63035aa56 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
2014-09-17 09:25:36 +00:00
Toma Tabacu
4378ff024d [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
2014-09-17 09:01:54 +00:00
Justin Bogner
217ab20074 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
2014-09-17 08:12:12 +00:00
Pavel Chupin
780f7e2168 [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
2014-09-17 07:09:23 +00:00
Justin Bogner
cc0c4e7cac 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
2014-09-17 06:32:48 +00:00
Justin Bogner
d1b4e60339 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
2014-09-17 05:33:20 +00:00
David Majnemer
d5f73530de 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
2014-09-17 04:16:35 +00:00
David Majnemer
27e656c742 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
2014-09-17 03:34:34 +00:00
Nick Kledzik
22d885d95e [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
2014-09-17 01:51:43 +00:00
Richard Trieu
11903b519f | -> ||
No functional change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217934 91177308-0d34-0410-b5e6-96231b3b80d8
2014-09-17 01:47:52 +00:00
Nick Kledzik
290c772b6c 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
2014-09-17 00:53:44 +00:00
Nick Kledzik
2b90611892 [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
2014-09-17 00:25:22 +00:00