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Author SHA1 Message Date
Jakob Stoklund Olesen
eb06b0b6aa Accept null PhysReg arguments to checkRegMaskInterference. 
Calling checkRegMaskInterference(VirtReg) checks if VirtReg crosses any
regmask operands, regardless of the registers they clobber.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158563 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 22:24:22 +00:00
Michael J. Spencer
12a88f81de [docs] Make it pretty. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158561 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 22:17:44 +00:00
Kevin Enderby
f49a4092bc Fix the encoding of the armv7m (MClass) for MSR registers other than aspr, 
iaspr, espr and xpsr which also needed to have 0b10 in their mask encoding bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158560 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 22:14:44 +00:00
Manman Ren
307473dec0 ARM: optimization for sub+abs. 
This patch will optimize abs(x-y)
FROM
sub, movs, rsbmi
TO
subs, rsbmi

For abs, we will use cmp instead of movs. This is necessary because we already
have an existing peephole pass which optimizes away cmp following sub.

rdar: 11633193


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158551 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 21:32:12 +00:00
Kay Tiong Khoo
695fd1a455 *fixed to separate mnemonic from operands with tab 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158543 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 21:04:21 +00:00
Andrew Trick
b6b5b7b691 LSR: fix expansion of scaled reg in non-address type formulae. 
For non-address users, Base and Scaled registers are not specially
associated to fit an address mode, so SCEVExpander should apply normal
expansion rules. Otherwise we may sink computation into inner loops
that have already been optimized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158537 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 20:07:29 +00:00
Andrew Trick
546f210115 LSR fix: "Special" users are just like "Basic" users but allow -1 scale. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158536 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 20:07:26 +00:00
Bill Wendling
4b8e1fd054 Remove assignments which aren't used afterwards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158535 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 19:30:42 +00:00
Bill Wendling
e68470a1e4 Remove assignments which aren't used afterwards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158534 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 19:28:20 +00:00
Pete Cooper
cbf73908f1 Allow SROA to split up an array of vectors into multiple vectors, even when the vectors are dynamically indexed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158529 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 18:07:29 +00:00
Rafael Espindola
2f135d4c14 Some optimizations done by globalopt are safe only for internal linkage, not 
linkonce linkage. For example, it is not valid to add unnamed_addr.

This also fixes a crash in g++.dg/opt/static5.C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158528 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 18:00:24 +00:00
Jakob Stoklund Olesen
d628a587b6 Preserve <undef> flags in ARMExpandPseudo. 
This probably mostly shows up in bugpoint-generated code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158527 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 17:46:54 +00:00
Jakob Stoklund Olesen
324143d888 Use regunit liveness in RegisterCoalescer when it is available. 
We only do very limited physreg coalescing now, but we still merge
virtual registers into reserved registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158526 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 17:36:48 +00:00
Rafael Espindola
aa7a2f2ba3 Factor macro argument parsing into helper methods and add support for .irp. 
Patch extracted from a larger one by the PaX team. I added the testcases
and tightened error handling a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158523 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 14:02:34 +00:00
Bill Wendling
6207cb519b Free the allocated filename. Found by clang static analyzer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158513 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 09:11:47 +00:00
Duncan Sands
cd117f736c Fix issues (infinite loop and/or crash) with self-referential instructions, for 
example degenerate phi nodes and binops that use themselves in unreachable code.
Thanks to Charles Davis for the testcase that uncovered this can of worms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158508 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 08:37:50 +00:00
Craig Topper
8e58b3e9b8 Move AVX version of convert instructions that write to GPRs to the Op1 table. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158497 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 07:02:58 +00:00
Marshall Clow
45aad162c6 Had a closing brace inside an #ifdef -- oops! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158485 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 01:15:47 +00:00
Marshall Clow
d4d03e09d3 Adding acessors to COFFObjectFile so that clients can get at the (non-generic) bits 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158484 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-15 01:08:25 +00:00
Pete Cooper
6399b7c510 Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158479 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 23:53:53 +00:00
Rafael Espindola
0397729d3b Implement the isSafeToDiscardIfUnused predicate and use it in globalopt and 
globaldce. Globaldce was already removing linkonce globals, but globalopt was
not.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158476 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 22:48:13 +00:00
Pete Cooper
312091ece3 Move X86::VCVTTSD2SIrr from the 2 operand to 1 operand MemRegOp table. 
Can someone with more knowledge of this please look at other entries
to see if others need moved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158474 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 22:12:58 +00:00
Akira Hatanaka
864f66085c Fix coding style violations. Remove white spaces and tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158471 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 21:10:56 +00:00
Akira Hatanaka
1418045472 1. introduce MipsPat in place of Pat in order to exclude those from 
being used by Mips16 or Micro Mips
2. clean up a few lines too long encountered

Patch by Reed Kotler.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158470 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 21:03:23 +00:00
Akira Hatanaka
6b0cd9b9c6 Make machine verifier check the first instruction of the last bundle instead of 
the last instruction of a basic block.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158468 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 20:51:13 +00:00
Lang Hames
0180694b2f Make comment slightly more helpful. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158467 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 20:37:15 +00:00
Pete Cooper
9e066625b7 Revert r158454: Allow SROA to look at a vector type... Its breaking the vectorise buildbot 
This reverts commit 12c1f86ffa731e2952c80d2cc577000c96b8962c.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158462 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 18:32:52 +00:00
Andrew Trick
42120a2c55 misched: disable SSA check pending PR13112. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158461 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 17:48:49 +00:00
Stepan Dyatkovskiy
cba91230c0 SmallMap, FlatArrayMap::copyFrom 
Replaced memcpy with std::copy, since the first one may work improperly with non POD data.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158457 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 16:59:43 +00:00
David Blaikie
722f2544b2 Remove/modify C backend references from LLVM documentation. 
Patch by Wei-Ren Chen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158456 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 16:52:55 +00:00
David Blaikie
deb878053a Remove C backend reference from the FAQ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158455 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 16:43:11 +00:00
Pete Cooper
77fdd3ad4a Recommit r158407: Allow SROA to look at a vector type and see if the offset is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158454 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 16:38:13 +00:00
Duncan Sands
b5a1bf4780 Clarify a bit that the types have to be the same. Came up on IRC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158453 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 14:58:28 +00:00
NAKAMURA Takumi
f1ece22612 MipsLongBranch.cpp: Tweak llvm::next() to appease msvc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158446 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 12:29:48 +00:00
Richard Barton
a1c7367a5b Replace assertion failure for badly formatted CPS instrution with error message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158445 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 10:48:04 +00:00
Jush Lu
efc967e044 Cleanup whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158443 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 06:08:19 +00:00
Manman Ren
39f5eb1563 Revert: test/CodeGen/ARM/iabs.ll in r158441 
Sorry that I accidently checked in this file with my previous commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158442 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 06:04:02 +00:00
Manman Ren
7a0575b9a8 InstCombine: fix a bug when combining (fcmp cc0 x, y) && (fcmp cc1 x, y). 
uno && ueq was converted to ueq, it should be converted to uno.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158441 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 05:57:42 +00:00
Akira Hatanaka
ce5c6fb55f Test case for MIPS long branch pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158438 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 02:12:21 +00:00
Akira Hatanaka
f4f60cbe46 Fix Mips/CMakeLists.txt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158437 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:23:55 +00:00
Akira Hatanaka
a32ccf92c1 Add file MipsLongBranch.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158436 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:22:24 +00:00
Akira Hatanaka
163d706c46 Fix test cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158435 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:21:00 +00:00
Akira Hatanaka
63b37f122d Remove code in MipsAsmPrinter and MipsMCInstLower. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158434 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:20:12 +00:00
Akira Hatanaka
9e97587e02 Add long branch expansion pass for MIPS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158433 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:19:35 +00:00
Akira Hatanaka
91625aab60 Add AT to the list of registers clobbered by branches so that it is available 
as a scratch register when they are expanded to long branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158432 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:17:59 +00:00
Akira Hatanaka
c56a7bb051 In MipsRegisterInfo::eliminateFrameIndex, call Mips::loadImmediate 
to load an immediate that does not fit into 16-bit. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158431 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:17:36 +00:00
Akira Hatanaka
84e09287cb In MipsFrameLowering::emitPrologue and emitEpilogue, call Mips::loadImmediate 
to load an immediate that does not fit into 16-bit. Also, take into
consideration the global base register slot on the stack when computing the
stack size. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158430 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:17:13 +00:00
Akira Hatanaka
d4b48b283c Define function MipsInstrInfo::GetInstSizeInBytes, which will be called to 
compute the size of basic blocks in a function. Also, define a function which
emits a series of instructions to load an immediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158429 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:16:45 +00:00
Akira Hatanaka
4654e58a64 In MipsISelDAGToDAG.cpp, store the global base register to a stack frame object. 
Long-branches need access to the global base register to get the destination
address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158428 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:16:15 +00:00
Akira Hatanaka
a76220a40c Add methods to MipsFunctionInfo for initializing and accessing the stack frame 
object for the global base register.

This is the first of a series of patches which implements long branch expansion
for MIPS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158427 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-06-14 01:15:36 +00:00