Commit Graph

55172 Commits

Author SHA1 Message Date
Nuno Lopes
60db7966ac ignore 'invoke new' in isInstructionTriviallyDead, since most callers are not ready to handle invokes. instcombine will take care of this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159440 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 17:37:07 +00:00
Alexey Samsonov
e2ec140909 Cleanup in DwarfDebug - fix a typo and remove two unused functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159433 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 16:04:14 +00:00
Duncan Sands
96d2eff5c6 Fix a reassociate crash on sozefx when compiling with dragonegg+gcc-4.7 due to
the optimizers producing a multiply expression with more multiplications than
the original (!).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159426 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 13:25:06 +00:00
Chandler Carruth
06cb8ed006 Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h
This was always part of the VMCore library out of necessity -- it deals
entirely in the IR. The .cpp file in fact was already part of the VMCore
library. This is just a mechanical move.

I've tried to go through and re-apply the coding standard's preferred
header sort, but at 40-ish files, I may have gotten some wrong. Please
let me know if so.

I'll be committing the corresponding updates to Clang and Polly, and
Duncan has DragonEgg.

Thanks to Bill and Eric for giving the green light for this bit of cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159421 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 12:38:19 +00:00
Bill Wendling
1a3b28b97f Update the CMake files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159417 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 09:01:47 +00:00
Bill Wendling
16eeb6f5eb The DIBuilder class is just a wrapper around debug info creation
(a.k.a. MDNodes). The module doesn't belong in Analysis. Move it to the VMCore
instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159414 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 08:32:07 +00:00
Andrew Trick
3e4b3b9043 Revert "Make NumMicroOps a variable in the subtarget's instruction itinerary."
This reverts commit r159406. I noticed a performance regression so I'll back out for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159411 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 07:10:41 +00:00
Rafael Espindola
94e3b388e5 In the initial exec mode we always do a load to find the address of a variable.
Before this patch in pic 32 bit code we would add the global base register
and not load from that address. This is a really old bug, but before the
introduction of the tls attributes we would never select initial exec for
pic code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159409 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 04:22:35 +00:00
Andrew Trick
5559ffae2b misched: avoid scheduling instructions that can't be dispatched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159408 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 03:23:24 +00:00
Andrew Trick
7f8c74cfae misched: count micro-ops toward the issue limit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159407 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 03:23:22 +00:00
Andrew Trick
0d9513c74f Make NumMicroOps a variable in the subtarget's instruction itinerary.
The TargetInstrInfo::getNumMicroOps API does not change, but soon it
will be used by MachineScheduler. Now each subtarget can specify the
number of micro-ops per itinerary class. For ARM, this is currently
always dynamic (-1), because it is used for load/store multiple which
depends on the number of register operands.

Zero is now a valid number of micro-ops. This can be used for
nop pseudo-instructions or instructions that the hardware can squash
during dispatch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159406 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 03:23:18 +00:00
Manman Ren
40307c7dbe X86: add more GATHER intrinsics in LLVM
Corrected type for index of llvm.x86.avx2.gather.d.pd.256
  from 256-bit to 128-bit.
Corrected types for src|dst|mask of llvm.x86.avx2.gather.q.ps.256
  from 256-bit to 128-bit.

Support the following intrinsics:
  llvm.x86.avx2.gather.d.q, llvm.x86.avx2.gather.q.q
  llvm.x86.avx2.gather.d.q.256, llvm.x86.avx2.gather.q.q.256
  llvm.x86.avx2.gather.d.d, llvm.x86.avx2.gather.q.d
  llvm.x86.avx2.gather.d.d.256, llvm.x86.avx2.gather.q.d.256


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159402 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-29 00:54:20 +00:00
Nick Lewycky
4d3bba5be4 If the step value is a constant zero, the loop isn't going to terminate. Fixes
the assert reported in PR13228!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159393 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 23:44:57 +00:00
Nuno Lopes
917f97c580 make the verifier accept @llvm.donothing as the only intrinsic that can be invoked
While at it, merge 2 tests and FileCheckize them

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159388 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 22:57:00 +00:00
Nuno Lopes
7f71f5f6b8 make simplifyCFG erase invokes to readonly/readnone functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159385 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 22:32:27 +00:00
Nuno Lopes
c363c74c45 make instcombine produce calls to llvm.donothing instead of a random intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159384 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 22:31:24 +00:00
Nuno Lopes
85b408991a add a new @llvm.donothing intrinsic that, well, does nothing, and teach CodeGen to ignore calls to it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159383 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 22:30:12 +00:00
Jim Grosbach
926dc168c8 'Promote' vector [su]int_to_fp should widen elements.
Teach vector legalization how to honor Promote for int to float
conversions. The code checking whether to promote the operation knew
to look at the operand, but the actual promotion code didn't. This
fixes that. The operand is promoted up via [zs]ext.

rdar://11762659

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159378 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 21:03:44 +00:00
Jack Carter
f38ad8efd0 Changed the formatting sequence of a curly brace to
the comment per code review feedback.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159376 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 20:46:26 +00:00
Bill Wendling
112f575e4b Remove layering violation #include.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159372 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 20:17:05 +00:00
Benjamin Kramer
d5dbc8c2bb Enable automatic GCC<->LLVM intrinsic translation for mips.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159367 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 19:09:53 +00:00
Nuno Lopes
41a3f25134 MemoryBuiltins:
- recognize C++ new(std::nothrow) friends
 - ignore ExtractElement and ExtractValue instructions in size/offset analysis (all easy cases are probably folded away before we get here)
 - also recognize realloc as noalias

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159356 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 16:34:03 +00:00
Nuno Lopes
e50487796d make LazyValueInfo analyze the default case of switch statements (we know that in the default branch the value cannot be any of the switch cases)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159353 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 16:13:37 +00:00
Nuno Lopes
62d7afad8f add ConstantRange::difference (to perform set difference/relative complement)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159352 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 16:10:13 +00:00
Benjamin Kramer
ceb5bc7df1 Devirtualize DIScope and subclasses.
Nothing in here makes use of the virtuality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159349 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 14:25:45 +00:00
Kostya Serebryany
324cbb89f2 [asan] set a hard limit on the number of instructions instrumented pear each BB. This is (hopefully temporary) workaround for PR13225
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159344 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 09:34:41 +00:00
Hal Finkel
282969ed36 Precompute SCEV pointer analysis prior to instruction fusion in BBVectorize.
When both a load/store and its address computation are being vectorized, it can
happen that the address-computation vectorization destroys SCEV's ability
to analyize the relative pointer offsets. As a result (like with the aliasing
analysis info), we need to precompute the necessary information prior to
instruction fusing.

This was found during stress testing (running through the test suite with a very
low required chain length); unfortunately, I don't have a small test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159332 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:45 +00:00
Hal Finkel
a9ad9f64d5 Remove a useless check in BBVectorize.
A shuffle mask will always be a constant, but I did not realize that
when I originally wrote the code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159331 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:43 +00:00
Hal Finkel
64e1b28643 Allow BBVectorize to form non-2^n-length vectors.
The original algorithm only used recursive pair fusion of equal-length
types. This is now extended to allow pairing of any types that share
the same underlying scalar type. Because we would still generally
prefer the 2^n-length types, those are formed first. Then a second
set of iterations form the non-2^n-length types.

Also, a call to SimplifyInstructionsInBlock has been added after each
pairing iteration. This takes care of DCE (and a few other things)
that make the following iterations execute somewhat faster. For the
same reason, some of the simple shuffle-combination cases are now
handled internally.

There is some additional refactoring work to be done, but I've had
many requests for this feature, so additional refactoring will come
soon in future commits (as will additional test cases).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159330 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:42 +00:00
Hal Finkel
ec4e85e336 Refactor operation equivalence checking in BBVectorize by extending Instruction::isSameOperationAs.
Maintaining this kind of checking in different places is dangerous, extending
Instruction::isSameOperationAs consolidates this logic into one place. Here
I've added an optional flags parameter and two flags that are important for
vectorization: CompareIgnoringAlignment and CompareUsingScalarTypes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159329 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 05:42:26 +00:00
Bill Wendling
97a759249d Only print out the tag if it's there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 02:17:58 +00:00
Bill Wendling
fc1c70a8a4 Don't output an empty string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159327 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 02:12:20 +00:00
Jack Carter
7c3cd4d24e The Mips specific inline asm operand modifier 'z' has the
following description in the gnu sources:

    Print $0 if operand is zero otherwise print the op normally.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159324 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 01:33:40 +00:00
Nuno Lopes
e441394784 make LVI::getEdgeValue() always intersect the constraints of the edge with the range of the block. Previously it was only performing the intersection for a few cases, thus losing precision
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159320 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 01:16:18 +00:00
Nuno Lopes
532516a87b fix a off-by-one bug in intersectWith(), and add a bunch of tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159319 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:59:33 +00:00
Bill Wendling
58a6cf2c62 Use the interface through DIDescriptor to get the tag/version for a debug info
MDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159317 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:41:44 +00:00
Bill Wendling
0064851c0b Fix cmake failure from moving files around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159314 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:18:12 +00:00
Bill Wendling
0bcbd1df7a Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159312 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-28 00:05:13 +00:00
Jack Carter
a6d6ef6dac This allows hello world to be compiled for Mips 64 direct object.
It takes advantage of r159299 which introduces relocation support for N64. 
elf-dump needed to be upgraded to support N64 relocations as well.

This passes make check.

Jack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159302 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 23:13:42 +00:00
Jack Carter
0140e55393 This allows hello world to be compiled for Mips 64 direct object.
It takes advantage of r159299 which introduces relocation support for N64. 
elf-dump needed to be upgraded to support N64 relocations as well.

This passes make check.

Jack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159301 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 22:48:25 +00:00
Chad Rosier
36b8fed61d Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159300 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 22:34:28 +00:00
Jack Carter
93ee286e8d The ELF relocation record format is different for N64
which many Mips 64 ABIs use than for O64 which many 
if not all other target ABIs use.

Most architectures have the following 64 bit relocation record format:

  typedef struct
  {
    Elf64_Addr   r_offset; /* Address of reference */
    Elf64_Xword  r_info;   /* Symbol index and type of relocation */
  } Elf64_Rel;

  typedef struct
  {
    Elf64_Addr    r_offset;
    Elf64_Xword   r_info;
    Elf64_Sxword  r_addend;
  } Elf64_Rela;

Whereas N64 has the following format:

  typedef struct
  {
    Elf64_Addr    r_offset;/* Address of reference */
    Elf64_Word  r_sym;     /* Symbol index */
    Elf64_Byte  r_ssym;    /* Special symbol */
    Elf64_Byte  r_type3;   /* Relocation type */
    Elf64_Byte  r_type2;   /* Relocation type */
    Elf64_Byte  r_type;    /* Relocation type */
  } Elf64_Rel;

  typedef struct
  {
    Elf64_Addr    r_offset;/* Address of reference */
    Elf64_Word  r_sym;     /* Symbol index */
    Elf64_Byte  r_ssym;    /* Special symbol */
    Elf64_Byte  r_type3;   /* Relocation type */
    Elf64_Byte  r_type2;   /* Relocation type */
    Elf64_Byte  r_type;    /* Relocation type */
    Elf64_Sxword  r_addend;
  } Elf64_Rela;

The structure is the same size, but the r_info data element 
is now 5 separate elements. Besides the content aspects, 
endian byte reordering will be different for the area with 
each element being endianized separately.

I treat this as generic and continue to pass r_type as 
an integer masking and unmasking the byte sized N64 
values for N64 mode. I've implemented this and it causes no 
affect on other current targets.

This passes make check.

Jack


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159299 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 22:28:30 +00:00
Matt Beaumont-Gay
06b8c285d3 Revert r159136 due to PR13124.
Original commit message:

If a constant or a function has linkonce_odr linkage and unnamed_addr, mark it
hidden. Being linkonce_odr guarantees that it is available in every dso that
needs it. Being a constant/function with unnamed_addr guarantees that the
copies don't have to be merged.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159272 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 17:10:33 +00:00
Duncan Sands
2d5f8ca3d1 Some reassociate optimizations create new instructions, which they insert just
before the expression root.  Any existing operators that are changed to use one
of them needs to be moved between it and the expression root, and recursively
for the operators using that one.  When I rewrote RewriteExprTree I accidentally
inverted the logic, resulting in the compacting going down from operators to
operands rather than up from operands to the operators using them, oops.  Fix
this, resolving PR12963.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159265 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 14:19:00 +00:00
Richard Barton
4acefe192f Teach assembler to handle capitalised operation values for DSB instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159259 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 09:48:23 +00:00
Richard Barton
b69182095c Prevent ARM Assembler crashing on unrecognised assembly format for DSB instruction
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 09:36:19 +00:00
Akira Hatanaka
e246b52d2b Silence uninitialized variable warning in MipsISelDAGToDAG.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159243 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 00:49:46 +00:00
Akira Hatanaka
4782a6e06a Fix bug in computation of stack size in MipsFrameLowering.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159240 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-27 00:20:39 +00:00
Bill Wendling
e877824edd Reduce indentation in function. Rearrange some methods. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 23:22:18 +00:00
Bill Wendling
494f8c6cfa Revamp how debugging information is emitted for debug info objects.
It's not necessary for each DI class to have its own copy of `print' and
`dump'. Instead, just give DIDescriptor those methods and have it call the
appropriate debugging printing routine based on the type of the debug
information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159237 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-26 22:57:33 +00:00