Commit Graph

111934 Commits

Author SHA1 Message Date
Hans Wennborg 7324280cb2 Merging r227294:
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r227294 | chandlerc | 2015-01-27 20:57:56 -0800 (Tue, 27 Jan 2015) | 23 lines

[LPM] Stop using the string based preservation API. It is an
abomination.

For starters, this API is incredibly slow. In order to lookup the name
of a pass it must take a memory fence to acquire a pointer to the
managed static pass registry, and then potentially acquire locks while
it consults this registry for information about what passes exist by
that name. This stops the world of LLVMs in your process no matter
how little they cared about the result.

To make this more joyful, you'll note that we are preserving many passes
which *do not exist* any more, or are not even analyses which one might
wish to have be preserved. This means we do all the work only to say
"nope" with no error to the user.

String-based APIs are a *bad idea*. String-based APIs that cannot
produce any meaningful error are an even worse idea. =/

I have a patch that simply removes this API completely, but I'm hesitant
to commit it as I don't really want to perniciously break out-of-tree
users of the old pass manager. I'd rather they just have to migrate to
the new one at some point. If others disagree and would like me to kill
it with fire, just say the word. =]
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227328 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-28 17:35:18 +00:00
Hans Wennborg cf80edec5b Merging r227261:
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r227261 | compnerd | 2015-01-27 14:57:39 -0800 (Tue, 27 Jan 2015) | 6 lines

SymbolRewriter: allow rewriting with comdats

COMDATs must be identically named to the symbol.  When support for COMDATs was
introduced, the symbol rewriter was not updated, resulting in rewriting failing
for symbols which were placed into COMDATs.  This corrects the behaviour and
adds test cases for this.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227324 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-28 17:24:04 +00:00
Hans Wennborg e180cfa0dc Merging r227260:
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r227260 | compnerd | 2015-01-27 14:57:35 -0800 (Tue, 27 Jan 2015) | 4 lines

SymbolRewriter: prevent unnecessary rewrite

The rewrite for the pattern based rewrite is unnecessary if the existing name
matches the pattern.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227323 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-28 17:22:20 +00:00
Daniel Sanders 6a9506acf9 Merging r227005:
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r227005 | dsanders | 2015-01-24 14:35:11 +0000 (Sat, 24 Jan 2015) | 38 lines

[mips] Fix 'jumpy' debug line info around calls.

Summary:
At the moment, address calculation is taking the debug line info from the
address node (e.g. TargetGlobalAddress). When a function is called multiple
times, this results in output of the form:

  .loc $first_call_location
  .. address calculation ..
  .. function call ..
  .. address calculation ..
  .loc $second_call_location
  .. function call ..
  .loc $first_call_location
  .. address calculation ..
  .loc $third_call_location
  .. function call ..

This patch makes address calculations for function calls take the debug line
info for the call node and results in output of the form:
  .loc $first_call_location
  .. address calculation ..
  .. function call ..
  .loc $second_call_location
  .. address calculation ..
  .. function call ..
  .loc $third_call_location
  .. address calculation ..
  .. function call ..

All other address calculations continue to use the address node.

Test Plan: Fixes test/DebugInfo/multiline.ll on a mips host.

Subscribers: dblaikie, llvm-commits

Differential Revision: http://reviews.llvm.org/D7050

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227193 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-27 13:55:27 +00:00
Pekka Jaaskelainen 3fdca844a0 pocl and TCE work with LLVM 3.6 now. Added them to the ReleaseNotes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227188 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-27 10:23:05 +00:00
Hans Wennborg 3c3b55ee63 Merging r226664:
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r226664 | tnorthover | 2015-01-21 07:43:31 -0800 (Wed, 21 Jan 2015) | 7 lines

AArch64: add backend option to reserve x18 (platform register)

AAPCS64 says that it's up to the platform to specify whether x18 is
reserved, and a first step on that way is to add a flag controlling
it.

From: Andrew Turner <andrew@fubar.geek.nz>
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227150 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-26 23:16:44 +00:00
Hans Wennborg 913134bde6 Merging r226711:
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r226711 | jroelofs | 2015-01-21 14:39:43 -0800 (Wed, 21 Jan 2015) | 8 lines

Fix load-store optimizer on thumbv4t

Thumbv4t does not have lo->lo copies other than MOVS,
and that can't be predicated. So emit MOVS when needed
and bail if there's a predicate.

http://reviews.llvm.org/D6592

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226918 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-23 17:47:22 +00:00
Hans Wennborg 4f7a137d61 Merging r226708:
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r226708 | majnemer | 2015-01-21 14:32:04 -0800 (Wed, 21 Jan 2015) | 4 lines

InstCombine: Don't strip bitcasts off of callsites marked 'thunk'

The return type of a thunk is meaningless, we just want the arguments
and return value to be forwarded.
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2015-01-22 19:40:47 +00:00
Hans Wennborg 5baa764b97 Merging r226755:
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r226755 | sanjoy | 2015-01-21 16:48:47 -0800 (Wed, 21 Jan 2015) | 11 lines

Make ScalarEvolution less aggressive with respect to no-wrap flags.

ScalarEvolution currently lowers a subtraction recurrence to an add
recurrence with the same no-wrap flags as the subtraction.  This is
incorrect because `sub nsw X, Y` is not the same as `add nsw X, -Y`
and `sub nuw X, Y` is not the same as `add nuw X, -Y`.  This patch
fixes the issue, and adds two test cases demonstrating the bug.

Differential Revision: http://reviews.llvm.org/D7081


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2015-01-22 16:58:19 +00:00
Tom Stellard 870f78a584 Merging r226597:
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r226597 | thomas.stellard | 2015-01-20 14:33:04 -0500 (Tue, 20 Jan 2015) | 5 lines

R600/SI: Add subtarget feature to enable VGPR spilling for all shader types

This is disabled by default, but can be enabled with the subtarget
feature: 'vgpr-spilling'

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2015-01-21 22:44:52 +00:00
Tom Stellard 8c3d5ad1b5 Merging r226596:
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r226596 | thomas.stellard | 2015-01-20 14:33:02 -0500 (Tue, 20 Jan 2015) | 2 lines

R600/SI: Fix simple-loop.ll test

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2015-01-21 22:44:51 +00:00
Tom Stellard e09ead0a9a Merging r226591:
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r226591 | thomas.stellard | 2015-01-20 14:24:31 -0500 (Tue, 20 Jan 2015) | 2 lines

R600/SI: Remove stray debugging code from r226586

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2015-01-21 22:44:49 +00:00
Tom Stellard f957779852 Merging r226586:
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r226586 | thomas.stellard | 2015-01-20 12:49:47 -0500 (Tue, 20 Jan 2015) | 6 lines

R600/SI: Use external symbols for scratch buffer

We were passing the scratch buffer address to the shaders via user sgprs,
but now we use external symbols and have the driver patch the shader
using reloc information.

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2015-01-21 22:44:48 +00:00
Tom Stellard e554cfd008 Merging r226585:
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r226585 | thomas.stellard | 2015-01-20 12:49:45 -0500 (Tue, 20 Jan 2015) | 5 lines

R600/SI: Add kill flag when copying scratch offset to a register

This allows us to re-use the same register for the scratch offset
when accessing large private arrays.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226724 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-21 22:44:46 +00:00
Tom Stellard b17ae4f14f Merging r226584:
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r226584 | thomas.stellard | 2015-01-20 12:49:43 -0500 (Tue, 20 Jan 2015) | 6 lines

R600/SI: Don't store scratch buffer frame index in MUBUF offset field

We don't have a good way of legalizing this if the frame index offset
is more than the 12-bits, which is size of MUBUF's offset field, so
now we store the frame index in the vaddr field.

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2015-01-21 22:44:45 +00:00
Tom Stellard 87f0cda801 Merging r226583:
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r226583 | thomas.stellard | 2015-01-20 12:49:41 -0500 (Tue, 20 Jan 2015) | 5 lines

R600/SI: Update SIInstrInfo:verifyInstruction() after r225662

Now that we have our own custom register operand types, we need
to handle them in the verifiier.

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2015-01-21 22:44:44 +00:00
Tom Stellard 3dd7164b4d Merging r226226:
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r226226 | Matthew.Arsenault | 2015-01-15 18:17:03 -0500 (Thu, 15 Jan 2015) | 5 lines

R600/SI: Fix trailing comma with modifiers

Instructions with 1 operand can still use source modifiers,
so make sure we don't print an extra comma afterwards.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226721 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-21 22:44:43 +00:00
Tom Stellard 01a640b665 Merging r226191:
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r226191 | marek.olsak | 2015-01-15 13:43:06 -0500 (Thu, 15 Jan 2015) | 11 lines

R600/SI: Unify VOP2 instructions which are VOP3-only on VI

This removes some duplicated classes and definitions.

These instructions are defined:
  _e32 // pseudo
  _e32_si
  _e64 // pseudo
  _e64_si
  _e64_vi

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2015-01-21 22:44:42 +00:00
Tom Stellard 028c9e7906 Merging r226190:
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r226190 | marek.olsak | 2015-01-15 13:43:01 -0500 (Thu, 15 Jan 2015) | 2 lines

R600/SI: Use 64-bit encoding by default for opcodes that are VOP3-only on VI

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2015-01-21 22:44:40 +00:00
Tom Stellard 2a56d539b3 Merging r226189:
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r226189 | marek.olsak | 2015-01-15 13:42:55 -0500 (Thu, 15 Jan 2015) | 6 lines

R600/SI: Add V_READLANE_B32 and V_WRITELANE_B32 for VI

These are VOP3-only on VI.

The new multiclass doesn't define VOP3 versions of VOP2 instructions.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226718 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-21 22:44:39 +00:00
Tom Stellard 5193190974 Merging r226188:
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r226188 | marek.olsak | 2015-01-15 13:42:51 -0500 (Thu, 15 Jan 2015) | 7 lines

R600/SI: Don't shrink instructions whose e32 encoding doesn't exist

v2: modify hasVALU32BitEncoding instead
v3: - add pseudoToMCOpcode helper to AMDGPUInstInfo, which is used by both
      hasVALU32BitEncoding and AMDGPUMCInstLower::lower
    - report an error if a pseudo can't be lowered

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226717 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-21 22:44:37 +00:00
Tom Stellard e781723f77 Merging r226187:
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r226187 | marek.olsak | 2015-01-15 13:42:44 -0500 (Thu, 15 Jan 2015) | 2 lines

R600/SI: Add common class VOPAnyCommon

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2015-01-21 22:44:35 +00:00
Tom Stellard 493f96e531 Merging r226186:
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r226186 | marek.olsak | 2015-01-15 13:42:40 -0500 (Thu, 15 Jan 2015) | 2 lines

R600/SI: Don't select SI-only VOP3 opcodes on VI

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2015-01-21 22:44:33 +00:00
Hans Wennborg e1fa02c7d3 Merging r226473:
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r226473 | garious | 2015-01-19 09:40:05 -0800 (Mon, 19 Jan 2015) | 8 lines

[AArch64] Implement GHC calling convention

Original patch by Luke Iannini.  Minor improvements and test added by
Erik de Castro Lopo.

Differential Revision: http://reviews.llvm.org/D6877

From: Erik de Castro Lopo <erikd@mega-nerd.com>
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2015-01-20 20:36:02 +00:00
Rafael Espindola a4475bb4b7 Add a few items to the 3.6 release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226582 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-20 17:14:01 +00:00
Daniel Sanders 6caadcf10a Merging r226171:
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r226171 | dsanders | 2015-01-15 15:41:03 +0000 (Thu, 15 Jan 2015) | 11 lines

[mips] Fix a typo in the compare patterns for MIPS32r6/MIPS64r6.

Summary: The patterns intended for the SETLE node were actually matching the SETLT node.

Reviewers: atanasyan, sstankovic, vmedic

Reviewed By: vmedic

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6997
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2015-01-17 16:23:31 +00:00
Daniel Sanders 23e4d9de98 Merging r226170:
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r226170 | vkalintiris | 2015-01-15 15:36:04 +0000 (Thu, 15 Jan 2015) | 7 lines

Fix the C-API MCJIT test for 32-bit big endian machines.

Avoid using unions for storing the return value from
LLVMGetGlobalValueAddress() and LLVMGetFunctionAddress() and accessing it as
a pointer through another pointer member. This causes problems on 32-bit big
endian machines since the pointer gets the higher part of the return value of
the aforementioned functions.
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2015-01-17 16:22:27 +00:00
Rafael Espindola fc56780924 Revert r225957 from the 3.6 branch.
It should get more testing on trunk before going into a release.

Original message:

Use the integrated assembler by default on SPARC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226355 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-17 00:43:31 +00:00
Rafael Espindola de8a73a90d Port r226022 to the 3.6 branch.
r225644 is a revert of r225644. A fixed version for trunk is being reviewed, but there is
no need to rush this into 3.6.

Original message:

Revert "Add r224985 back with two fixes."

This reverts commit r225644 while I debug a regression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226354 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-17 00:38:54 +00:00
Duncan P. N. Exon Smith 5d8d6cebfd Fix nit from review of metadata release notes.
Somehow I missed this review comment until now...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226213 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-15 21:42:35 +00:00
Duncan P. N. Exon Smith 0b5f8d1fd5 Write 3.6 metadata release notes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226212 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-15 21:41:08 +00:00
Hans Wennborg 8e4eedc0d3 Merging r226182:
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r226182 | joerg | 2015-01-15 09:59:02 -0800 (Thu, 15 Jan 2015) | 2 lines

Support @PLT loads on 32bit x86.

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2015-01-15 20:56:12 +00:00
Hans Wennborg 9696cd8292 Merging r226075:
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r226075 | sanjoy | 2015-01-14 17:46:09 -0800 (Wed, 14 Jan 2015) | 10 lines

Fix PR22222

The bug was introduced in r225282. r225282 assumed that sub X, Y is
the same as add X, -Y. This is not correct if we are going to upgrade
the sub to sub nuw. This change fixes the issue by making the
optimization ignore sub instructions.

Differential Revision: http://reviews.llvm.org/D6979


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2015-01-15 19:16:54 +00:00
Duncan P. N. Exon Smith 76c60fb62e Merging r226058:
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r226058 | dexonsmith | 2015-01-14 15:11:51 -0800 (Wed, 14 Jan 2015) | 1 line

IR: Fix comment spelling, NFC
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2015-01-15 04:04:53 +00:00
Duncan P. N. Exon Smith 7e47c13d6b Merging r226048:
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r226048 | dexonsmith | 2015-01-14 14:27:36 -0800 (Wed, 14 Jan 2015) | 17 lines

IR: Move MDLocation into place

This commit moves `MDLocation`, finishing off PR21433.  There's an
accompanying clang commit for frontend testcases.  I'll attach the
testcase upgrade script I used to PR21433 to help out-of-tree
frontends/backends.

This changes the schema for `DebugLoc` and `DILocation` from:

    !{i32 3, i32 7, !7, !8}

to:

    !MDLocation(line: 3, column: 7, scope: !7, inlinedAt: !8)

Note that empty fields (line/column: 0 and inlinedAt: null) don't get
printed by the assembly writer.
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2015-01-15 04:04:08 +00:00
Duncan P. N. Exon Smith 9a2c602164 Merging r226046:
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r226046 | dexonsmith | 2015-01-14 14:14:26 -0800 (Wed, 14 Jan 2015) | 3 lines

IR: Always print MDLocation line

Print `MDLocation`'s `line` field even when it's 0.
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2015-01-15 03:59:43 +00:00
Duncan P. N. Exon Smith 5b0645536a Merging r226044:
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r226044 | dexonsmith | 2015-01-14 13:58:17 -0800 (Wed, 14 Jan 2015) | 15 lines

IR: Drop metadata references more aggressively during teardown

Sometimes teardown happens before the debug info graph is complete
(e.g., when clang throws an error).  In that case, `MDNode`s will still
have RAUW, so deleting constants that the `MDNode`s point at will be
relatively expensive -- it'll cause re-uniquing all up the chain (what
I've been referring to as "teardown madness").

So, drop references *before* deleting constants.  We need to drop a few
more references now: the metadata side of the metadata/value bridges
needs to be dropped off the cliff along with the rest of it (previously,
the bridges were cleaned before we did anything with the `MDNode`s).

There's no real functionality change here -- state before and after
`LLVMContextImpl::~LLVMContextImpl()` is unchanged -- so no testcase.
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2015-01-15 03:59:09 +00:00
Duncan P. N. Exon Smith 7a539a8113 Merging r226029:
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r226029 | dexonsmith | 2015-01-14 11:56:10 -0800 (Wed, 14 Jan 2015) | 7 lines

IR: Fix a use-after-free in RAUW

Happened pretty commonly during `LLVMContext` teardown when `clang -g`
hit an error.  This fixes the use-after-free.  Next I'll clean up
teardown so that it's not RAUW'ing when metadata-tracked values are
deleted (only really causes a problem if the graph is mid-construction
when teardown starts, but it's still unnecessary work).
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2015-01-15 03:58:02 +00:00
Hans Wennborg 97ae37b5f3 Merging r226023:
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r226023 | majnemer | 2015-01-14 11:26:56 -0800 (Wed, 14 Jan 2015) | 3 lines

InstCombine: Don't take A-B<0 into A<B if A-B has other uses

This fixes PR22226.
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2015-01-14 23:14:47 +00:00
Hans Wennborg 96da76c014 Change version from 3.6.0svn to 3.6.0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@226020 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 19:02:46 +00:00
Hans Wennborg e8ac5dc787 Creating release_36 branch off revision 225991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@225992 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 16:41:41 +00:00
Sanjay Patel 2f39336782 fix typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225991 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 16:03:58 +00:00
Tom Stellard 65e0a4d4da R600/SI: Use IMPLICIT_DEF and KILL when failing to spill VGPRs
This helps us avoid 'invalid register class for operand' verifier
errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225989 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 15:42:34 +00:00
Tom Stellard 33040cf56e R600/SI: Spill VGPRs to scratch space for compute shaders
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225988 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 15:42:31 +00:00
Olivier Sallenave 735aa71398 Check that the TLI callback enableAggressiveFMAFusion has the desired effect on FMA folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225987 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 15:36:28 +00:00
Olivier Sallenave 01cef58e6b Override the TLI callback enableAggressiveFMAFusion and return true. Indeed, fmul, fmadd and fadd nodes cost the same number of cycles, so we can enable more combining heuristics to produce more fmadd nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225984 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 14:47:24 +00:00
Rafael Espindola 5f92811f30 Handle a symbol being undefined.
This can happen if:
* It is present in a comdat in one file.
* It is not present in the comdat of the file that is kept.
* Is is not used.

This should fix the LTO boostrap.

Thanks to Takumi NAKAMURA for setting up the bot!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225983 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 13:53:50 +00:00
Vladimir Medic 81e68c9023 Add disassembler tests for mips32r2 platform. There are no functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225980 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 11:35:22 +00:00
Erik Eckstein d6238e7b7e reapply: SLPVectorizer: Cache results from memory alias checking.
This speeds up the dependency calculations for blocks with many load/store/call instructions.
Beside the improved runtime, there is no functional change.

Compared to the original commit, this re-applied commit contains a bug fix which ensures that there are
no incorrect collisions in the alias cache.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225977 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 11:24:47 +00:00
Chandler Carruth 1b279144ec [cleanup] Re-sort all the #include lines in LLVM using
utils/sort_includes.py.

I clearly haven't done this in a while, so more changed than usual. This
even uncovered a missing include from the InstrProf library that I've
added. No functionality changed here, just mechanical cleanup of the
include order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225974 91177308-0d34-0410-b5e6-96231b3b80d8
2015-01-14 11:23:27 +00:00