Commit Graph

19386 Commits

Author SHA1 Message Date
Nick Lewycky
fa03ff99b2 Add missing test from r175092.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182564 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-23 07:46:13 +00:00
David Blaikie
3d33184d9d Solidify the assumption that a DW_TAG_subprogram's type is a DW_TAG_subroutine_type
There were bits & pieces of code lying around that may've given the
impression that debug info metadata supported the possibility that a
subprogram's type could be specified by a non-subroutine type describing
the return type of a void function. This support was incomplete &
unnecessary. Asserts & API have been changed to make the desired usage
more clear.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182532 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 23:22:18 +00:00
Nadav Rotem
3f75c6cfb5 SLPVectorizer: Change the order in which new instructions are added to the function.
We are not working on a DAG and I ran into a number of problems when I enabled the vectorizations of 'diamond-trees' (trees that share leafs).
* Imroved the numbering API.
* Changed the placement of new instructions to the last root.
* Fixed a bug with external tree users with non-zero lane.
* Fixed a bug in the placement of in-tree users.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182508 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 19:47:32 +00:00
Nadav Rotem
23d1d5eb56 X86: Fix a bug in EltsFromConsecutiveLoads. We can't generate new loads without chains.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182507 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 19:28:41 +00:00
Jean-Luc Duprat
5e6cabd163 This is an update to a previous commit (r181216).
The earlier change list introduced the following inst combines:
B * (uitofp i1 C) —> select C, B, 0
A * (1 - uitofp i1 C) —> select C, 0, A
select C, 0, B + select C, A, 0 —> select C, A, B

Together these 3 changes would simplify :
A * (1 - uitofp i1 C) + B * uitofp i1 C 
down to :
select C, B, A

In practice we found that the first two substitutions can have a
negative effect on performance, because they reduce opportunities to
use FMA contractions; between the two options FMAs are often the
better choice.  This change list amends the previous one to enable
just these inst combines:

select C, B, 0 + select C, 0, A —> select C, B, A
A * (1 - uitofp i1 C) + B * uitofp i1 C —> select C, B, A




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182499 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 18:29:31 +00:00
Benjamin Kramer
60ef6c9295 X86: When expanding PCMPGTQ to PCMPGTD we always want to compare the lower halves as unsigned.
Take #2 on fixing PR15977.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182486 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 17:01:12 +00:00
Arnold Schwaighofer
6e4a9c14f6 LoopVectorize: Make Value pointers that could be RAUW'ed a VH
The Value pointers we store in the induction variable list can be RAUW'ed by a
call to SCEVExpander::expandCodeFor, use a TrackingVH instead. Do the same thing
in some other places where we store pointers that could potentially be RAUW'ed.

Fixes PR16073.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182485 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 16:54:56 +00:00
David Majnemer
3b4b5367da X86: Remove test instructions proceeding shift by immediate instructions
Allow LLVM to take advantage of shift instructions that set the ZF flag,
making instructions that test the destination superfluous.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182454 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-22 08:13:02 +00:00
Rafael Espindola
e67c9c341f Use std::list so that we have a stable iterator.
I will try to avoid creating these std::strings, but for now this gets
the tests passing with libc++.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182405 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 18:53:50 +00:00
Akira Hatanaka
2591b5c6c3 [mips] Rename option to make it compatible with gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182397 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 17:17:59 +00:00
Akira Hatanaka
1d4d32398d [mips] Add instruction selection patterns for blez and bgez.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182396 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 17:13:47 +00:00
Justin Holewinski
b9c26dcb24 [NVPTX] Add @llvm.nvvm.sqrt.f() intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182394 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 16:51:30 +00:00
Justin Holewinski
c2b7f5fa51 Drop @llvm.annotation and @llvm.ptr.annotation intrinsics during codegen.
The intrinsic calls are dropped, but the annotated value is propagated.

Fixes PR 15253

Original patch by Zeng Bin!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182387 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 14:37:16 +00:00
Evgeniy Stepanov
bf4150656f [msan] A no-op implementation of VarArg handling.
This stuff is used on platforms where MSan does not have a proper VarArg
implementation (anything other than x86_64 at the moment).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182375 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 12:27:47 +00:00
Benjamin Kramer
f106d8bad6 X86: When emulating unsigned PCMPGTQ with PCMPGTD, fix the sign bit for the smaller type.
Otherwise we'll get a mix of signed and unsigned compares.
Fixes PR15977.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182364 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 09:58:54 +00:00
Richard Sandiford
af2a1bebfc [SystemZ] Tighten branch tests
After r182274, the branches in these tests must always be short.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182358 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 08:53:17 +00:00
Benjamin Kramer
f19b8b018b DAGCombine: Avoid an edge case where it tried to create an i0 type for (x & 0) == 0.
Fixes PR16083.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182357 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 08:51:09 +00:00
Reed Kotler
49d44a080a Add checks that the proper predeined stubs are being called to the test case.
These were accidentally omitted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182347 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 01:27:36 +00:00
Manman Ren
01cb18ea08 Dwarf: use a single line table to generate assembly when .loc is used.
This is to fix PR15408 where an undefined symbol Lline_table_start1 is used.
Since we do not generate the debug_line section when .loc is used,
Lline_table_start1 is not emitted and we can't refer to it when calculating
at_stmt_list for a compile unit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182344 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 00:57:22 +00:00
Reed Kotler
bf00bf9ad2 Add some additional functions to the list of helper functions for
pic calls. These need to be there so we don't try and use helper
functions when we call those.

As part of this, make sure that we properly exclude helper functions in pic
mode when indirect calls are involved.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182343 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-21 00:50:30 +00:00
David Blaikie
7b72cc7782 PR14606: Debug Info for namespace aliases/DW_TAG_imported_module
This resolves the last of the PR14606 failures in the GDB 7.5 test
suite by implementing an optional name field for
DW_TAG_imported_modules/DIImportedEntities and using that to implement
C++ namespace aliases (eg: "namespace X = Y;").

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182328 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 22:50:35 +00:00
Sebastian Pop
b02834cf1f add polly to check-all
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182308 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 18:49:15 +00:00
Akira Hatanaka
1aeb13bd9c [mips] Add (setne $lhs, 0) instruction selection pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182307 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 18:18:07 +00:00
Akira Hatanaka
f894199a14 [mips] Trap on integer division by zero.
By default, a teq instruction is inserted after integer divide. No divide-by-zero
checks are performed if option "-mnocheck-zero-division" is used.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182306 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 18:07:43 +00:00
Justin Holewinski
9b39c726a0 [NVPTX] Fix mis-use of CurrentFnSym in NVPTXAsmPrinter. This was causing a symbol name error in the output PTX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182298 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 16:42:18 +00:00
Tom Stellard
4f8d90df45 R600: Fix rotr.ll on non-asserts builds
The -debug-only option is only available on asserts builds.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182291 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 15:28:48 +00:00
Tom Stellard
0bbfc9313c R600/SI: Add pattern for rotr
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182286 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 15:02:24 +00:00
Tom Stellard
ba534c2143 R600: Swap the legality of rotl and rotr
The hardware supports rotr and not rotl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182285 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 15:02:19 +00:00
Tom Stellard
a9d5d0b346 R600/SI: Add patterns for 64-bit shift operations
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182284 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 15:02:12 +00:00
Mihai Popa
30a7a7c1fd VSTn instructions have a number of encoding constraints which are not implemented. I have added these using wrapper methods around the original custom decoder (incidentally - this is a huge poorly written method that should be cleaned up. I have left it as is since the changes would be much to hard to review).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182281 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 14:57:05 +00:00
Mihai Popa
bac932e9c3 Q registers are encoded in fields of the same length as D registers. As Q registers are half as many, the ARM reference manual mandates the least significant bit to be zeroed out. Failure to do so should result in an undefined instruction. With this change test/MC/Disassembler/ARM/invalid-VQADD-arm.txt is passing (removed XFAIL).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182279 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 14:42:43 +00:00
Richard Sandiford
44b486ed78 [SystemZ] Add long branch pass
Before this change, the SystemZ backend would use BRCL for all branches
and only consider shortening them to BRC when generating an object file.
E.g. a branch on equal would use the JGE alias of BRCL in assembly output,
but might be shortened to the JE alias of BRC in ELF output.  This was
a useful first step, but it had two problems:

(1) The z assembler isn't traditionally supposed to perform branch shortening
    or branch relaxation.  We followed this rule by not relaxing branches
    in assembler input, but that meant that generating assembly code and
    then assembling it would not produce the same result as going directly
    to object code; the former would give long branches everywhere, whereas
    the latter would use short branches where possible.

(2) Other useful branches, like COMPARE AND BRANCH, do not have long forms.
    We would need to do something else before supporting them.

    (Although COMPARE AND BRANCH does not change the condition codes,
    the plan is to model COMPARE AND BRANCH as a CC-clobbering instruction
    during codegen, so that we can safely lower it to a separate compare
    and long branch where necessary.  This is not a valid transformation
    for the assembler proper to make.)

This patch therefore moves branch relaxation to a pre-emit pass.
For now, calls are still shortened from BRASL to BRAS by the assembler,
although this too is not really the traditional behaviour.

The first test takes about 1.5s to run, and there are likely to be
more tests in this vein once further branch types are added.  The feeling
on IRC was that 1.5s is a bit much for a single test, so I've restricted
it to SystemZ hosts for now.

The patch exposes (and fixes) some typos in the main CodeGen/SystemZ tests.
A later patch will remove the {{g}}s from that directory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182274 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 14:23:08 +00:00
Justin Holewinski
7536ecf291 [NVPTX] Add GenericToNVVM IR converter to better handle idiomatic LLVM IR inputs
This converter currently only handles global variables in address space 0. For
these variables, they are promoted to address space 1 (global memory), and all
uses are updated to point to the result of a cvta.global instruction on the new
variable.

The motivation for this is address space 0 global variables are illegal since we
cannot declare variables in the generic address space.  Instead, we place the
variables in address space 1 and explicitly convert the pointer to address
space 0. This is primarily intended to help new users who expect to be able to
place global variables in the default address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182254 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 12:13:32 +00:00
Justin Holewinski
55fdf53629 [NVPTX] Fix i1 kernel parameters and global variables. ABI rules say we need to use .u8 for i1 parameters for kernels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182253 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 12:13:28 +00:00
Stepan Dyatkovskiy
083bc97344 PR15868 fix.
Introduction:
In case when stack alignment is 8 and GPRs parameter part size is not N*8:
we add padding to GPRs part, so part's last byte must be recovered at
address K*8-1.
We need to do it, since remained (stack) part of parameter starts from
address K*8, and we need to "attach" "GPRs head" without gaps to it:

Stack:
|---- 8 bytes block ----| |---- 8 bytes block ----| |---- 8 bytes...
[ [padding] [GPRs head] ] [ ------ Tail passed via stack  ------ ...

FIX:
Note, once we added padding we need to correct *all* Arg offsets that are going
after padded one. That's why we need this fix: Arg offsets were never corrected
before this patch. See new test-cases included in patch.

We also don't need to insert padding for byval parameters that are stored in GPRs
only. We need pad only last byval parameter and only in case it outsides GPRs
and stack alignment = 8.
Though, stack area, allocated for recovered byval params, must satisfy
"Size mod 8 = 0" restriction.

This patch reduces stack usage for some cases:
We can reduce ArgRegsSaveArea since inner N*4 bytes sized byval params my be
"packed" with alignment 4 in some cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182237 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 08:01:34 +00:00
Renato Golin
3a408fa878 Disable remote MCJIT on pre-v6 ARM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182235 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 07:46:06 +00:00
Jakob Stoklund Olesen
89f530ebbf Also expand 64-bit bitcasts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182229 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 01:01:43 +00:00
Jakob Stoklund Olesen
5e5b78ca36 Implement spill and fill of I64Regs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182228 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 00:53:25 +00:00
Jakob Stoklund Olesen
900622e099 Mark i64 SETCC as expand so it is turned into a SELECT_CC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182227 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-20 00:28:36 +00:00
Jakob Stoklund Olesen
634123e98d Don't use %g0 to materialize 0 directly.
The wired physreg doesn't work on tied operands like on MOVXCC.

Add a README note to fix this later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182225 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 21:47:13 +00:00
Jakob Stoklund Olesen
60abcb786e Select i64 values with %icc conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182224 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:38:21 +00:00
Jakob Stoklund Olesen
51d46c36bc Add floating point selects on %xcc predicates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182222 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:33:11 +00:00
Jakob Stoklund Olesen
89db6732fb Implement SPselectfcc for i64 operands.
Also clean up the arguments to all the MOVCC instructions so the
operands always are (true-val, false-val, cond-code).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182221 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:20:54 +00:00
Venkatraman Govindaraju
21886a495a [Sparc] Rearrange integer registers' allocation order so that register allocator will use I and G registers before using L and O registers.
Also, enable registers %g2-%g4 to be used in application and %g5 in 64 bit mode.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182219 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 20:07:20 +00:00
Jakob Stoklund Olesen
00ce0f6512 Handle i64 FrameIndex nodes in SPARC v9 mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182216 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 19:14:24 +00:00
Tim Northover
820b147493 Invalidate instruction cache when setting memory to be executable.
lli's remote MCJIT code calls setExecutable just prior to running
code. In line with Darwin behaviour this seems to be the place to
invalidate any caches needed so that relocations can take effect
properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182213 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 15:28:16 +00:00
Bob Wilson
ff9a6b44e0 Temporarily disable this test because it is failing when using libc++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182212 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 14:59:08 +00:00
Benjamin Kramer
ebe7a52a17 Move the remaining simplify-libcalls tests to instcombine, merging most of them into a single file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182211 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-19 13:28:39 +00:00
Renato Golin
6d65f333a3 Unsupported remote JIT on ARM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182201 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-18 19:42:07 +00:00
David Majnemer
cb9d4667b7 isKnownToBeAPowerOfTwo: (X & Y) + Y is a power of 2 or zero if y is also.
This is useful if something that looks like (x & (1 << y)) ? 64 : 32 is
the divisor in a modulo operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182200 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-18 19:30:37 +00:00