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52317 Commits

Author SHA1 Message Date
Nick Lewycky
5eb2e957b3 Fix typo in ruler. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147454 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 18:22:43 +00:00
Devang Patel
b1666b971e Intel style asm variant does not need '%' prefix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147453 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 18:22:10 +00:00
Stepan Dyatkovskiy
bd47f59afa Type: replaced usage of ID with getTypeID(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147446 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 14:05:04 +00:00
Elena Demikhovsky
ce58a03587 Fixed a bug in SelectionDAG.cpp. 
The failure seen on win32, when i64 type is illegal.
It happens on stage of conversion VECTOR_SHUFFLE to BUILD_VECTOR.

The failure message is:
llc: SelectionDAG.cpp:784: void VerifyNodeCommon(llvm::SDNode*): Assertion `(I->getValueType() == EltVT || (EltVT.isInteger() && I->getValueType().isInteger() && EltVT.bitsLE(I->getValueType()))) && "Wrong operand type!"' failed.

I added a special test that checks vector shuffle on win32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147445 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-03 11:59:04 +00:00
Andrew Trick
0f8cd56bfd Fix SCEVExpander to handle loops with no preheader when LSR gives it a 
"phony" insertion point.

Fixes rdar://10619599: "SelectionDAGBuilder shouldn't visit PHI nodes!" assert


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147439 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 21:25:10 +00:00
Craig Topper
c612d79817 Miscellaneous shuffle lowering cleanup. No functional changes. Primarily converting the indexing loops to unsigned to be consistent across functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147430 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 09:17:37 +00:00
Craig Topper
a51bb3aa75 Make CanXFormVExtractWithShuffleIntoLoad reject loads with multiple uses. Also make it return false if there's not even a load at all. This makes the code better match the code in DAGCombiner that it tries to match. These two changes prevent some cases where vector_shuffles were making it to instruction selection and causing the older shuffle selection code to be triggered. Also needed to fix a bad pattern that this change exposed. This is the first step towards getting rid of the old shuffle selection support. No test cases yet because there's no way to tell whether a shuffle was handled in the legalize stage or at instruction selection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147428 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 08:46:48 +00:00
Nadav Rotem
a46f35d3d6 Optimize the sequence blend(sign_extend(x)) to blend(shl(x)) since SSE blend instructions only look at the highest bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147426 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 08:05:46 +00:00
Rafael Espindola
47f79bb58e Materialize functions whose basic blocks are used by global variables. Fixes 
PR11677.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147425 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-02 07:49:53 +00:00
Craig Topper
a86bcfb565 Allow CRC32 instructions to be selected when AVX is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147411 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 19:51:58 +00:00
Craig Topper
de9e4c728e Fix sfence, lfence, mfence, and clflush to be able to be selected when AVX is enabled. Fix monitor and mwait to require SSE3 or AVX, previously they worked even if SSE3 was disabled. Make prefetch instructions not set the execution domain since they don't use XMM registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147409 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 19:40:22 +00:00
Benjamin Kramer
8943574b44 X86Disassembler: Fix undefined behavior found by GCC 4.6 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147404 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 17:55:36 +00:00
Benjamin Kramer
55c6d57734 PatternMatch: Introduce a matcher for instructions with the "exact" bit. Use it to simplify a few matchers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147403 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 17:55:30 +00:00
Rafael Espindola
acae2a63b9 Revert 147399. It broke CodeGen/ARM/vext.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147400 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 17:36:23 +00:00
Elena Demikhovsky
ac12855066 Fixed a bug in SelectionDAG.cpp. 
The failure seen on win32, when i64 type is illegal.
It happens on stage of conversion VECTOR_SHUFFLE to BUILD_VECTOR.

The failure message is:
llc: SelectionDAG.cpp:784: void VerifyNodeCommon(llvm::SDNode*): Assertion `(I->getValueType() == EltVT || (EltVT.isInteger() && I->getValueType().isInteger() && EltVT.bitsLE(I->getValueType()))) && "Wrong operand type!"' failed.

I added a special test that checks vector shuffle on win32.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147399 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-01 16:22:47 +00:00
Craig Topper
b3982da7d2 Merge X86 SHUFPS and SHUFPD node types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147394 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:50:21 +00:00
Craig Topper
3ee6d22c78 Add patterns for integer forms of SHUFPD/VSHUFPD with a memory load. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147393 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:24:49 +00:00
Craig Topper
e00805d52f Fix typo in a SHUFPD and VSHUFPD pattern that prevented SHUFPD/VSHUFPD with a load from being selected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147392 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 23:15:11 +00:00
Nick Lewycky
57ed0948b8 Make use of the exact bit when optimizing '(X >>exact 3) << 1' to eliminate the 
'and' that would zero out the trailing bits, and to produce an exact shift
ourselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147391 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 21:30:22 +00:00
Dylan Noblesmith
ccc9a59614 VMCore: add assert for miscompile 
See PR11652. Trying to add this assert to
setSubclassData() itself actually prevented
the miscompile entirely, so it has to be here.

This makes the source of the bug more obvious
than the other asserts triggering later on did.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147390 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-31 13:58:58 +00:00
Bruno Cardoso Lopes
ce8524c016 Cleanup Mips code and rename some variables. Patch by Jack Carter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147383 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 21:09:41 +00:00
Bruno Cardoso Lopes
3aa035fa0c Improve Mips JIT. 
Implement encoder methods getJumpTargetOpValue and getBranchTargetOpValue
for jmptarget and brtarget Mips tablegen operand types in the code emitter
for old-style JIT. Rename the pc relative relocation for branches - new
name is Mips::reloc_mips_pc16.

Patch by Sasa Stankovic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147382 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 21:04:30 +00:00
Craig Topper
7ba2725f5d Make FMA4 imply AVX so that YMM registers would be available. Necessitates removing from Bulldozer CPU types since it would enable AVX code generation implicitly. Also make SSE4A imply SSE3. Without some level of SSE implied, XMM registers wouldn't be legal. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147369 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 07:16:00 +00:00
Craig Topper
06f554d06a Add disassembler support for VPERMIL2PD and VPERMIL2PS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147368 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 06:23:39 +00:00
Craig Topper
e6a3a2990e Add FMA4 instructions to disassembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147367 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 05:20:36 +00:00
Craig Topper
5d1a38cbfa Separate the concept of having memory access in operand 4 from the concept of having the W bit set for XOP instructons. Removes ORing W-bits in the encoder and will similarly simplify the disassembler implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147366 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 04:48:54 +00:00
Craig Topper
4d5c4423b9 Combine FMA4 SS/SD patterns with the instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147365 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 03:33:59 +00:00
Craig Topper
ca28590d8b Combine FMA4 PS/PD patterns with the instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147364 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 03:17:15 +00:00
Craig Topper
2e9ed29449 Change FMA4 memory forms to use memopv* instead of alignedloadv*. No need to force alignment on these instructions. Add a couple testcases for memory forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147361 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 02:18:36 +00:00
Craig Topper
57d4b3315f Fix load size for FMA4 SS/SD instructions. They need to use f32 and f64 size, but with the special handling to be compatible with the intrinsic expecting a vector. Similar handling is already used elsewhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147360 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 01:49:53 +00:00
Hal Finkel
2e95afa04c Cleanup stack/frame register define/kill states. This fixes two bugs: 
1. The ST*UX instructions that store and update the stack pointer did not set define/kill on R1. This became a problem when I activated post-RA scheduling (and had incorrectly adjusted the Frames-large test).

2. eliminateFrameIndex did not kill its scavenged temporary register, and this could cause the scavenger to exhaust all available registers (and its emergency spill slot) when there were a lot of CR values to spill. The 2010-02-12-saveCR test has been adjusted to check for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147359 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-30 00:34:00 +00:00
Rafael Espindola
ed23bdb65f Implement cfi_restore. Patch by Brian Anderson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147356 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 21:43:03 +00:00
Rafael Espindola
c25680f728 Rename Remember and Restore to RememberState and RestoreState for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147354 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 21:09:08 +00:00
Craig Topper
1604ccfc01 Fix execution domains for PS/PD FMA3 instructions. Add SS/SD forms o FMA3 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147353 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:43:40 +00:00
Rafael Espindola
6f0b181bc7 Implement .cfi_escape. Patch by Brian Anderson! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147352 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:24:47 +00:00
Craig Topper
19f18be449 Expose FMA3 instructions to the disassembler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147351 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 20:03:14 +00:00
Craig Topper
c38fff4277 Make FMA3 imply AVX needs to be enabled. Particularly because 256-bit types aren't valid unless AVX is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147349 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 19:46:19 +00:00
Craig Topper
5ebee4494b Change XOP detection to use the correct CPUID bit instead of using the FMA4 bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147348 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 19:25:56 +00:00
Craig Topper
8493e39014 Add FeaturePOPCNT to all CPU types that lost it was removed from SSE42/SSE4A in r147339. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147347 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:47:31 +00:00
Craig Topper
b75f5f7d5d Mark non-VEX forms of PCLMUL instructions as requiring SSE2 to be enabled along with CLMUL. That's required for the XMM registers to be valid for integer data. Doesn't change any behavior since the CLMUL instructions don't have patterns yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147345 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:08:36 +00:00
Craig Topper
78be212d1b Mark non-VEX forms of AES instructions as requiring SSE2 to be enabled along with AES. Since that's required for the XMM registers to be valid for integer data. Doesn't change any behavior though since you can't use an intrinsic with an illegal type anyway. Just makes it consistent with the VEX forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147344 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 18:00:08 +00:00
Craig Topper
d65c7da5b0 Remove the separate explicit AES instruction patterns. They are equivalent to the patterns specified by the instructions. Also remove unnecessary bitconverts from the AES patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147342 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 17:41:56 +00:00
Craig Topper
d4d3513d37 Make SSE42 and SSE4A not imply POPCNT. POPCNT should be able to be disabled on its own without disabling SSE4.2 or SSE4A. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147339 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 15:51:45 +00:00
Craig Topper
19ec2a9db1 Make LowerBUILD_VECTOR keep node vector types consistent when creating MOVL for v16i16 and v32i8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147337 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:34:54 +00:00
Craig Topper
d62c16e535 Remove some elses after returns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147336 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:20:51 +00:00
Craig Topper
3224e6b60a Remove trailing spaces. Fix an assert to use && instead of || before string. Add same assert on similar code path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147335 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-29 03:09:33 +00:00
Nick Lewycky
b48a18903a Change CaptureTracking to pass a Use* instead of a Value* when a value is 
captured. This allows the tracker to look at the specific use, which may be
especially interesting for function calls.

Use this to fix 'nocapture' deduction in FunctionAttrs. The existing one does
not iterate until a fixpoint and does not guarantee that it produces the same
result regardless of iteration order. The new implementation builds up a graph
of how arguments are passed from function to function, and uses a bottom-up walk
on the argument-SCCs to assign nocapture. This gets us nocapture more often, and
does so rather efficiently and independent of iteration order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147327 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 23:24:21 +00:00
Eli Friedman
da813f4209 Fix type-checking for load transformation which is not legal on floating-point types. PR11674. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147323 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 21:24:44 +00:00
Nadav Rotem
6059b83695 PR11662. 
Promotion of the mask operand needs to be done using PromoteTargetBoolean, and not padded with garbage.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147309 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 13:08:20 +00:00
Elena Demikhovsky
021c0a2ee7 Fixed a bug in LowerVECTOR_SHUFFLE and LowerBUILD_VECTOR. 
Matching MOVLP mask for AVX (265-bit vectors) was wrong.
The failure was detected by conformance tests.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147308 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 08:14:01 +00:00
Nick Lewycky
8da7ddf2d2 Demystify this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147307 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-28 06:57:32 +00:00
Benjamin Kramer
c894b02ae0 Switch StringMap from an array of structures to a structure of arrays. 
- -25% memory usage of the main table on x86_64 (was wasted in struct padding).
- no significant performance change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147294 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 20:35:07 +00:00
Nick Lewycky
91968489d7 Use false not zero, as a bool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147292 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 18:27:22 +00:00
Nick Lewycky
a6b21ea4ba Turn cos(-x) into cos(x). Patch by Alexander Malyshev! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147291 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 18:25:50 +00:00
Benjamin Kramer
27baab62e7 Clean up some Release build warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147289 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 11:41:05 +00:00
Craig Topper
3738ccd7eb Add handling of x86_avx2_pmovmskb to computeMaskedBitsForTargetNode for consistency. Add comments and an assert for BMI instructions to PerformXorCombine since the enabling of the combine is conditional on it, but the function itself isn't. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147287 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 06:27:23 +00:00
Nick Lewycky
06cc66f65a Teach simplifycfg to recompute branch weights when merging some branches, and 
to discard weights when appropriate. Still more to do (and a new TODO), but
it's a start!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147286 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 04:31:52 +00:00
Nick Lewycky
da32cc6176 Using Inst->setMetadata(..., NULL) should be safe to remove metadata even when 
there is non of that type to remove. This fixes a crasher in the particular
case where the instruction has metadata but no metadata storage in the context
(this is only possible if the instruction has !dbg but no other metadata info).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147285 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-27 01:17:40 +00:00
Rafael Espindola
125ef76934 Fix warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147284 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-26 23:12:42 +00:00
Eli Friedman
d6e2560e7a Make sure DAGCombiner doesn't introduce multiple loads from the same memory location. PR10747, part 2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147283 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-26 22:49:32 +00:00
Nick Lewycky
c9a1aed7fe Update the branch weight metadata when reversing the order of a branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147280 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-26 20:54:14 +00:00
Nick Lewycky
9d52310222 Sort includes, canonicalize whitespace, fix typos. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147279 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-26 20:37:40 +00:00
Nadav Rotem
fbb6f593c2 Fix a typo in the widening of vectors in PromoteIntRes. Patch by Shemer Anat. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147272 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-25 20:01:38 +00:00
Venkatraman Govindaraju
55caf9c60a Sparc: Implement emitFrameIndexDebugValue and getDebugValue Location hooks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147269 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-25 18:50:24 +00:00
Rafael Espindola
aba65b05fc Remove unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147261 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-25 01:20:19 +00:00
Benjamin Kramer
49064ff770 InstCombine: Add a combine that turns (2^n)-1 ^ x back into (2^n)-1 - x iff x is smaller than 2^n and it fuses with a following add. 
This was intended to undo the sub canonicalization in cases where it's not profitable, but it also
finds some cases on it's own.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147256 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 17:31:53 +00:00
Benjamin Kramer
009da05e75 ComputeMaskedBits: Make knownzero computation more aggressive for ctlz with undef zero. 
unsigned foo(unsigned x) { return 31 - __builtin_clz(x); }
now compiles into a single "bsrl" instruction on x86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147255 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 17:31:46 +00:00
Benjamin Kramer
1fdfae05b0 InstCombine: Canonicalize (2^n)-1 - x into (2^n)-1 ^ x iff x is known to be smaller than 2^n. 
This has the obvious advantage of being commutable and is always a win on x86 because
const - x wastes a register there. On less weird architectures this may lead to
a regression because other arithmetic doesn't fuse with it anymore. I'll address that
problem in a followup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147254 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 17:31:38 +00:00
Rafael Espindola
ce618af3e8 Section relative fixups are a coff concept, not a x86 one. Replace the 
x86 specific reloc_coff_secrel32 with a generic FK_SecRel_4.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147252 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 14:47:52 +00:00
Chandler Carruth
7782102c70 Use standard promotion for i8 CTTZ nodes and i8 CTLZ nodes when the 
LZCNT instructions are available. Force promotion to i32 to get
a smaller encoding since the fix-ups necessary are just as complex for
either promoted type

We can't do standard promotion for CTLZ when lowering through BSR
because it results in poor code surrounding the 'xor' at the end of this
instruction. Essentially, if we promote the entire CTLZ node to i32, we
end up doing the xor on a 32-bit CTLZ implementation, and then
subtracting appropriately to get back to an i8 value. Instead, our
custom logic just uses the knowledge of the incoming size to compute
a perfect xor. I'd love to know of a way to fix this, but so far I'm
drawing a blank. I suspect the legalizer could be more clever and/or it
could collude with the DAG combiner, but how... ;]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147251 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 12:12:34 +00:00
Chandler Carruth
3d636ea8ed Add systematic testing for cttz as well, and fix the bug I spotted by 
inspection earlier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147250 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 11:46:10 +00:00
Benjamin Kramer
32d720bb2f Chandler fixed this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147247 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 11:23:32 +00:00
Chandler Carruth
d873a4b89b Expand more when we have a nice 'tzcnt' instruction, to avoid generating 
'bsf' instructions here.

This one is actually debatable to my eyes. It's not clear that any chip
implementing 'tzcnt' would have a slow 'bsf' for any reason, and unless
EFLAGS or a zero input matters, 'tzcnt' is just a longer encoding.
Still, this restores the old behavior with 'tzcnt' enabled for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147246 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 11:11:38 +00:00
Chandler Carruth
acc068e873 Switch the lowering of CTLZ_ZERO_UNDEF from a .td pattern back to the 
X86ISelLowering C++ code. Because this is lowered via an xor wrapped
around a bsr, we want the dagcombine which runs after isel lowering to
have a chance to clean things up. In particular, it is very common to
see code which looks like:

  (sizeof(x)*8 - 1) ^ __builtin_clz(x)

Which is trying to compute the most significant bit of 'x'. That's
actually the value computed directly by the 'bsr' instruction, but if we
match it too late, we'll get completely redundant xor instructions.

The more naive code for the above (subtracting rather than using an xor)
still isn't handled correctly due to the dagcombine getting confused.

Also, while here fix an issue spotted by inspection: we should have been
expanding the zero-undef variants to the normal variants when there is
an 'lzcnt' instruction. Do so, and test for this. We don't want to
generate unnecessary 'bsr' instructions.

These two changes fix some regressions in encoding and decoding
benchmarks. However, there is still a *lot* to be improve on in this
type of code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147244 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 10:55:54 +00:00
Jakob Stoklund Olesen
43ea32ca04 Fix Comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147238 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 04:17:01 +00:00
Akira Hatanaka
fd1d9250b2 Add MachineMemOperands to instructions generated in storeRegToStackSlot or 
loadRegFromStackSlot. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147235 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 03:11:18 +00:00
Akira Hatanaka
9dfd4399a9 Detect unaligned loads/stores that have been added for Mips64 support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147234 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 03:07:37 +00:00
Akira Hatanaka
9dbeb0284d If target ABI is N64, LEA should be daddiu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147232 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 02:59:27 +00:00
Rafael Espindola
df09270ae8 Move x86 specific bits of the COFF writer to lib/Target/X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147231 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 02:14:02 +00:00
Rafael Espindola
84070ffbe6 Define trivial destructor inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147230 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 01:53:13 +00:00
Rafael Espindola
ceb09f3884 Make GetRelocType pure virtual. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147229 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-24 01:36:25 +00:00
Nick Lewycky
8a5641d856 Fix typo "infinte". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147226 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-23 23:49:25 +00:00
Mon P Wang
d24397a931 When not destroying the source, the linker is not remapping the types. Added support 
to CloneFunctionInto to allow remapping for this case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147217 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-23 02:18:32 +00:00
Jakob Stoklund Olesen
f06f6f50e9 Experimental support for aligned NEON spills. 
ARM targets with NEON units have access to aligned vector loads and
stores that are potentially faster than unaligned operations.

Add support for spilling the callee-saved NEON registers to an aligned
stack area using 16-byte aligned NEON loads and store.

This feature is off by default, controlled by an -align-neon-spills
command line option.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147211 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-23 00:36:18 +00:00
Bob Wilson
f4aea8f349 Add variants of the dispatchsetup pseudo for Thumb and !VFP. <rdar://10620138> 
My change r146949 added register clobbers to the eh_sjlj_dispatchsetup pseudo
instruction, but on Thumb1 some of those registers cannot be used.  This
caused massive failures on the testsuite when compiling for Thumb1.  While
fixing that, I noticed that the eh_sjlj_setjmp instruction has a "nofp"
variant, and I realized that dispatchsetup needs the same thing, so I have
added that as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147204 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 23:39:48 +00:00
Dylan Noblesmith
bfbc9fcb83 TableGen: add a comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147199 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 23:16:09 +00:00
Dylan Noblesmith
8cc300cb34 try to fix MSVC build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147198 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 23:08:39 +00:00
Dylan Noblesmith
9421406aad drop unneeded config.h includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147197 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 23:04:07 +00:00
Chad Rosier
30450e89d9 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147192 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:35:21 +00:00
Rafael Espindola
b156c5d376 Move all the dependencies on X86FixupKinds.h to a single method in preparation 
to moving it to lib/Target/X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147190 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:21:47 +00:00
Jim Grosbach
4050bc4cab ARM VFP assembly parsing and encoding for VCVT(float <--> fixed point). 
rdar://10558523

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147189 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:19:05 +00:00
Bob Wilson
d2355e72c5 Add missing usesCustomInserter flag on Int_eh_sjlj_setjmp_nofp. 
Noticed by inspection; I don't have a testcase for this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147188 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:12:44 +00:00
Jim Grosbach
21bcca81f4 Tidy up. Use predicate function a bit more liberally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147184 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 22:02:35 +00:00
Rafael Espindola
b975c27adc Fix incorrect relocation generation. Patch by Kristof Beyls. 
Fixes PR11214.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147180 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 21:36:43 +00:00
Chad Rosier
a816bf7c0d Add the actual code for r147175. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147176 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 21:10:46 +00:00
Jim Grosbach
c7448f8d47 ARM VFP add encoding of the bitcount to fixed-point<-->floating point. insns. 
The value from the operands isn't right yet, but we weren't encoding it at
all previously. The parser needs to twiddle the values when building the
instruction.

Partial for: rdar://10558523

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147170 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 19:55:21 +00:00
Jim Grosbach
8c748113eb Remove some bogus comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147169 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 19:45:01 +00:00
Jim Grosbach
1aa149f5ac ARM pre-UAL aliases. fcmp[sd]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147158 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 19:20:45 +00:00
Rafael Espindola
f51e95a9f2 Fix an incomplete refactoring of the ppc backend. Thanks to rdivacky for reporting 
it. It does need some some tests...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147154 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 18:38:06 +00:00
Jim Grosbach
8d9550bde9 ARM assembler should accept shift-by-zero for any shifted-immediate operand. 
Just treat it as-if the shift wasn't there at all. 'as' compatibility.

rdar://10604767

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147153 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 18:04:04 +00:00
Jim Grosbach
de626ad872 ARM assembly parser canonicallize on 'lsl' for shift-by-zero form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147152 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 17:37:00 +00:00
Jim Grosbach
18c8d12dea Tidy up. Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147151 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 17:17:10 +00:00
Jim Grosbach
f1a88fc474 Nuke invalid comment from copy/paste. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147150 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 17:04:50 +00:00
Benjamin Kramer
b143ea3739 Give string constants generated by IRBuilder private linkage. 
Fixes PR11640.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147144 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 14:22:14 +00:00
Chandler Carruth
51f40a725b Make the unreachable probability much much heavier. The previous 
probability wouldn't be considered "hot" in some weird loop structures
or other compounding probability patterns. This makes it much harder to
confuse, but isn't really a principled fix. I'd actually like it if we
could model a zero probability, as it would make this much easier to
reason about. Suggestions for how to do this better are welcome.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147142 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 09:26:37 +00:00
Rafael Espindola
3963d617b3 Kill the monstrosity that was ELFObjectWriter.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147136 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:38:00 +00:00
Rafael Espindola
7bd278019d Misc cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147135 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:24:43 +00:00
Eli Friedman
2acbd7ddc0 Fix APInt::rotl and APInt::rotr so that they work correctly. Found while writing some code that tried to use them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147134 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:15:35 +00:00
Rafael Espindola
090445967f Move the Mips only bits of the ELF writer to lib/Target/Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147133 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 03:03:17 +00:00
Rafael Espindola
6db2d92603 Make the virtual methods in ARMELFObjectWriter public. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147132 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:58:12 +00:00
Chad Rosier
5ddb7a0105 Speculatively revert r146578 to determine if it is the cause of a number of 
performance regressions (both execution-time and compile-time) on our
nightly testers.

Original commit message:
Fix for bug #11429: Wrong behaviour for switches. Small improvement for code
size heuristics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:40:57 +00:00
Rafael Espindola
4982159b88 Move the MBlaze ELF writer bits to lib/Target/MBlaze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147129 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:28:24 +00:00
Pete Cooper
3cfecf5cc2 Hoisted some loop invariant smallvector lookups out of a MachineLICM loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147127 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:13:25 +00:00
Rafael Espindola
dcc557f146 Fix cmake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147126 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:06:17 +00:00
Pete Cooper
acde91e273 Changed MachineLICM to use a worklist list MachineCSE instead of recursion. 
Fixes <rdar://problem/10584116>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147125 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 02:05:40 +00:00
Rafael Espindola
f3a86fb03d Move PPC bits to lib/Target/PowerPC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:57:09 +00:00
Rafael Espindola
81fafde8a6 Hopefully fix the cmake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147121 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:11:01 +00:00
Rafael Espindola
7609785d2b Fix name in comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147119 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:06:53 +00:00
Akira Hatanaka
bc24985c5f Local dynamic TLS model for direct object output. Create the correct TLS MIPS 
ELF relocations.

Patch by Jack Carter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:05:17 +00:00
Richard Smith
74cab51aa5 Unbreak cmake build after r147115. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147117 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 01:03:35 +00:00
Rafael Espindola
69bbda0391 Move the ARM specific parts of the ELF writer to Target/ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147115 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 00:37:50 +00:00
Rafael Espindola
e99183d2ac getEFlags is const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147114 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-22 00:21:50 +00:00
Jim Grosbach
f7c66fa0de ARM NEON mnemonic aliase for vrecpeq. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147109 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 23:52:37 +00:00
Jim Grosbach
af33a0cfe0 ARM VFP optional data type on VMOV GPR<-->SPR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147104 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 23:24:15 +00:00
Jim Grosbach
5f669fa8ba ARM NEON optional data type on VSWP instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147103 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 23:09:28 +00:00
Jim Grosbach
4553fa3128 ARM NEON mnemonic aliases for vzipq and vswpq. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147102 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 23:04:33 +00:00
Jakub Staszak
d4895ded27 Revert patch from 147090. There is not point to make code less readable if we 
don't get any serious benefit there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147101 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 23:02:08 +00:00
Jim Grosbach
de4d83943a ARM asm parser should be more lenient w/ .thumb_func directive. 
Rather than require the symbol to be explicitly an argument of the directive,
allow it to look ahead and grab the symbol from the next non-whitespace
line.

rdar://10611140

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147100 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 22:30:16 +00:00
Dan Gohman
483716015f Fix a copy+pasto. No testcase, because the symptoms of dereferencing 
an invalid iterator aren't reproducible.  rdar://10614085.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147098 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 21:43:50 +00:00
Jim Grosbach
520dc78d92 Thumb2 assembly parsing of 'mov rd, rn, rrx'. 
Maps to the RRX instruction. Missed this case earlier.

rdar://10615373

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147096 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 21:04:19 +00:00
Chad Rosier
5c0d761d63 Fix 80-column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147095 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:59:09 +00:00
Jim Grosbach
2cc5cda464 Thumb2 assembly parsing of 'mov(register shifted register)' aliases. 
These map to the ASR, LSR, LSL, ROR instruction definitions.

rdar://10615373

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147094 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:54:00 +00:00
Nick Lewycky
6c6fcc4610 Continue counting intrinsics as instructions (except when they aren't, such as 
debug info) and for being vector operations. Fixes regression from r147037.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147093 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:26:03 +00:00
Nick Lewycky
144bef462b Fix typo and spacing, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147092 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:21:55 +00:00
Jakub Staszak
73db975498 - Change a few operator[] to lookup which is cheaper. 
- Add some constantness.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147090 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:18:54 +00:00
Lang Hames
b638c789be Oops - LiveIntervalUnion.cpp file does use std::find. Moving STL header include to LiveIntervalUnion.cpp file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147089 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:16:11 +00:00
Lang Hames
bac22fac7d Remove disused STL header include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147088 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:12:54 +00:00
Rafael Espindola
e8526d030f Switch from WriteEFlags to getEFlags in preparation for moving it 
to Target/.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 20:09:46 +00:00
Jakob Stoklund Olesen
a2a98fd0dd Move common code into an MRI function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147071 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 19:50:05 +00:00
Jim Grosbach
e6949b1399 ARM NEON assmebly parsing for VLD2 to all lanes instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147069 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 19:40:55 +00:00
Chad Rosier
649326ab15 No case stmt for BUILD_VECTOR in PerformDAGCombine(), so I assume this isn't 
necessary.  Please chime in if I'm mistaken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147065 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 19:14:52 +00:00
Chad Rosier
8d0447c506 Fix a couple of copy-n-paste bugs. Noticed by George Russell! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147064 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 18:56:22 +00:00
Manuel Klimek
84cbb6f00d Changes the JSON parser to use the SourceMgr. 
Diagnostics are now emitted via the SourceMgr and we use MemoryBuffer
for buffer management. Switched the code to make use of the trailing
'0' that MemoryBuffer guarantees where it makes sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 18:16:39 +00:00
Rafael Espindola
edae8e1e4d Move the X86 specific bits of the ELF writer to the Target/X86 directory. 
Other targets will follow shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147060 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 17:30:17 +00:00
Rafael Espindola
dc9a8a378d Reduce the exposure of Triple::OSType in the ELF object writer. This will 
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147059 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 17:00:36 +00:00
Rafael Espindola
c677e790e5 Small refactoring so that RelocNeedsGOT can stay in the target independent 
side when the target specific bits are moved to the Target directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147053 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 14:26:29 +00:00
Manuel Klimek
9a31fb0c38 Removes unused field TheError from LLLexer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147049 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 10:02:45 +00:00
Craig Topper
224c1b275d Remove mode specific disassembler classes and just call X86GenericDisassembler constructor with appropriate argument in the creation functions. This removes a few tables that needed to be anchored. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147046 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 08:06:52 +00:00
Craig Topper
e1a18a66df Fix typo in a couple comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147045 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 06:30:53 +00:00
Nick Lewycky
20aded5912 A call to a function marked 'noinline' is not an inline candidate. The sole 
call site of an intrinsic is also not an inline candidate. While here, make it
more obvious that this code ignores all intrinsics. Noticed by inspection!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147037 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 06:06:30 +00:00
Nick Lewycky
8369687576 Make some intrinsics safe to speculatively execute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147036 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 05:52:02 +00:00
Evan Cheng
1e33e8b715 Fix a couple of copy-n-paste bugs. Noticed by George Russell. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147032 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 03:04:10 +00:00
Jim Grosbach
c931325d99 ARM assembly parsing allows constant expressions for lane indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 01:19:23 +00:00
Jim Grosbach
3471d4fbbd ARM NEON VLD2 assembly parsing for structure to all lanes, non-writeback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147025 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 00:38:54 +00:00
Akira Hatanaka
c7541c49a9 Fix bug in zero-store peephole pattern reported in pr11615. 
The patch and test case were originally written by Mans Rullgard.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147024 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 00:31:10 +00:00
Akira Hatanaka
c79507a4dd Expand 64-bit CTLZ nodes if target architecture does not support it. Add test 
case for DCLO and DCLZ.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147022 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 00:20:27 +00:00
Akira Hatanaka
7f162743fc Expand 64-bit CTPOP and CTTZ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147021 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 00:14:05 +00:00
Akira Hatanaka
9aed504c82 Expand 64-bit atomic load and store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147019 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-21 00:02:58 +00:00
Akira Hatanaka
c0ea04389c Add definition of DSBH (Double Swap Bytes within Halfwords) and 
DSHD (Double Swap Halfwords within Doublewords). Add a pattern which replaces
64-bit bswap with a DSBH and DSHD pair.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147017 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:56:43 +00:00
Akira Hatanaka
4d2b0f3ce7 Add definition of WSBH (Word Swap Bytes within Halfwords), which is an 
instruction supported by mips32r2, and add a pattern which replaces bswap with
a ROTR and WSBH pair.
 
WSBW is removed since it is not an instruction the current architectures
support.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:47:44 +00:00
Akira Hatanaka
e1bcd6b5c6 64-bit uint-fp conversion nodes are expanded. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147014 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:40:56 +00:00
Akira Hatanaka
9388383b34 Enable custom lowering DYNAMIC_STACKALLOC nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147013 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:35:46 +00:00
Akira Hatanaka
056a1bc40f Set the correct stack pointer register that should be saved or restored. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147012 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:28:36 +00:00
Chris Lattner
1a31f3b90c Fix a nasty bug in the type remapping stuff that I added that is breaking kc++ on 
the build bot in some cases.  The basic issue happens when a source module contains
both a "%foo" type and a "%foo.42" type.  It will see the later one, check to see if
the destination module contains a "%foo" type, and it will return true... because
both the source and destination modules are in the same LLVMContext.  We don't want
to map source types to other source types, so don't do the remapping if the mapped
type came from the source module.

Unfortunately, I've been unable to reduce a decent testcase for this, kc++ is 
pretty great that way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147010 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:14:57 +00:00
Jim Grosbach
aee718beac ARM .req register name aliases are case insensitive, just like regnames. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147009 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:11:00 +00:00
Akira Hatanaka
2fd0475cdb Add function MipsDAGToDAGISel::SelectMULT and factor out code that generates 
nodes needed for multiplication. Add code for selecting 64-bit MULHS and MULHU
nodes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147008 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 23:10:57 +00:00
Akira Hatanaka
49d534bb3d Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147007 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:58:01 +00:00
Akira Hatanaka
8dc684d2a2 64-bit data directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147005 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:52:19 +00:00
Akira Hatanaka
ef43c2de86 32-to-64-bit sext_inreg pattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147004 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:40:40 +00:00
Akira Hatanaka
acb5a06f7a Add 64-bit extload patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147003 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:36:08 +00:00
Akira Hatanaka
ab05b6c227 Add patterns for matching extloads with 64-bit address. The patterns are enabled 
only when the target ABI is N64.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147001 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:33:53 +00:00
Jim Grosbach
3cbe43fe69 Move comment to appropriate place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147000 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:26:38 +00:00
Akira Hatanaka
990d639f55 Add code in MipsDAGToDAGISel for selecting constant +0.0. 
MIPS64 can generate constant +0.0 with a single DMTC1 instruction. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146999 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:25:50 +00:00
Jakob Stoklund Olesen
52346e964f Heed spill slot alignment on ARM. 
Use the spill slot alignment as well as the local variable alignment to
determine when the stack needs to be realigned. This works now that the
ARM target can always realign the stack by using a base pointer.

Still respect the ARMBaseRegisterInfo::canRealignStack() function
vetoing a realigned stack.  Don't use aligned spill code in that case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146997 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:15:04 +00:00
Akira Hatanaka
05c585319b Revert part of r146995 that was accidentally commmitted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146996 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:09:36 +00:00
Akira Hatanaka
403992dc58 32-to-64-bit sign extension pattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146995 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 22:06:20 +00:00
Akira Hatanaka
caace8abdf Add a pattern for matching zero-store with 64-bit address. The pattern is enabled 
only when the target ABI is N64. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146992 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 21:50:49 +00:00
Jim Grosbach
5b484312c6 ARM assembly parsing and encoding for VST2 single-element, double spaced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146990 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 20:46:29 +00:00
Lang Hames
aa13482784 Fix assert condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146987 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 20:23:40 +00:00
Jakub Staszak
25101bb2a7 Add some constantness to BranchProbabilityInfo and BlockFrequnencyInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 20:03:10 +00:00
Devang Patel
45ca049f1f Add support to add named metadata operand. 
Patch by Andrew Wilkins!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146984 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 19:29:36 +00:00
Jim Grosbach
95fad1c603 ARM assembly parsing and encoding for VLD2 single-element, double spaced. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146983 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 19:21:26 +00:00
Evan Cheng
afff941211 ARM target code clean up. Check for iOS, not Darwin where it makes sense. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146981 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 18:26:50 +00:00
Jason W Kim
d7c9e08b6b First steps in ARM AsmParser support for .eabi_attribute and .arch 
(Both used for Linux gnueabi)
No behavioral change yet (no tests need so far)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146977 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 17:38:12 +00:00
Elena Demikhovsky
ba4f83b4e9 This is the second fix related to VZEXT_MOVL node. 
The failure that I see in the current version is:

LLVM ERROR: Cannot select: 0x18b8f70: v4i64 = X86ISD::VZEXT_MOVL 0x18beee0 [ID=14]
  0x18beee0: v4i64 = insert_subvector 0x18b8c70, 0x18b9170, 0x18b9570 [ID=13]
    0x18b8c70: v4i64 = insert_subvector 0x18b9870, 0x18bf4e0, 0x18b9970 [ID=12]
      0x18b9870: v4i64 = undef [ID=4]
      0x18bf4e0: v2i64 = bitcast 0x18bf3e0 [ID=10]
        0x18bf3e0: v4i32 = BUILD_VECTOR 0x18b9770, 0x18b9770, 0x18b9770, 0x18b9770 [ID=8]
          0x18b9770: i32 = TargetConstant<0> [ID=6]
          0x18b9770: i32 = TargetConstant<0> [ID=6]
          0x18b9770: i32 = TargetConstant<0> [ID=6]
          0x18b9770: i32 = TargetConstant<0> [ID=6]
      0x18b9970: i32 = Constant<0> [ID=3]
    0x18b9170: v2i64 = undef [ORD=1] [ID=1]
    0x18b9570: i32 = Constant<2> [ID=5]



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146975 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 13:34:28 +00:00
Chandler Carruth
f2d7693fbb Begin teaching the X86 target how to efficiently codegen patterns that 
use the zero-undefined variants of CTTZ and CTLZ. These are just simple
patterns for now, there is more to be done to make real world code using
these constructs be optimized and codegen'ed properly on X86.

The existing tests are spiffed up to check that we no longer generate
unnecessary cmov instructions, and that we generate the very important
'xor' to transform bsr which counts the index of the most significant
one bit to the number of leading (most significant) zero bits. Also they
now check that when the variant with defined zero result is used, the
cmov is still produced.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146974 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 11:19:37 +00:00
Manuel Klimek
093147abf4 Fixes a potential compilation error. 
Pulling the template implementation into the header to guarantee
that it's visible to all possible instantiations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146973 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 11:04:23 +00:00
Manuel Klimek
9ce6937701 Pulls the implementation of skip() into JSONParser. 
This is the first step towards migrating more of the parser
implementation into the parser class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146971 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 10:42:52 +00:00
Manuel Klimek
c4850c9a06 Addressing style issues in JSON parser. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146968 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 09:26:26 +00:00
Chandler Carruth
cfb75fba73 Fix up the CMake build for the new files added in r146960, they're 
likely to stay either way that discussion ends up resolving itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146966 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 08:42:11 +00:00
David Blaikie
2d24e2a396 Unweaken vtables as per http://llvm.org/docs/CodingStandards.html#ll_virtual_anch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146960 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 02:50:00 +00:00
Andrew Trick
ba3c0bc364 LSR: Fix another corner case in expansion of postinc users. 
Fixes PR11571: Instruction does not dominate all uses


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146950 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 01:42:24 +00:00
Bob Wilson
c0b0e57a87 Mark ARM eh_sjlj_dispatchsetup as clobbering all registers. Radar 10567930. 
We used to rely on the *eh_sjlj_setjmp instructions to mark that a function
with setjmp/longjmp exception handling clobbers all the registers.  But with
the recent reorganization of ARM EH, those eh_sjlj_setjmp instructions are
expanded away earlier, before PEI can see them to determine what registers to
save and restore.  Mark the dispatchsetup instruction in the same way, since
that instruction cannot be expanded early.  This also more accurately reflects
when the registers are clobbered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146949 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 01:29:27 +00:00
Jim Grosbach
04b5d93250 ARM assembly shifts by zero should be plain 'mov' instructions. 
"mov r1, r2, lsl #0" should assemble as "mov r1, r2" even though it's
not strictly legal UAL syntax. It's a common extension and the friendly
thing to do.

rdar://10604663

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146937 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 00:59:38 +00:00
Chris Lattner
ea93373a0a Now that PR11464 is fixed, reapply the patch to fix PR11464, 
merging types by name when we can.  We still don't guarantee type name linkage
but we do it when obviously the right thing to do.  This makes LTO type names 
easier to read, for example.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146932 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 00:12:26 +00:00
Chris Lattner
68910509fd fix PR11464 by preventing the linker from mapping two different struct types from the source module onto the same opaque destination type. An opaque type can only be resolved to one thing or another after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146929 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 00:03:52 +00:00
Dan Gohman
e3376ecd50 Add basic generic CodeGen support for half. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146927 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-20 00:02:33 +00:00
Jim Grosbach
9b0878512f ARM NEON assembly aliases for VMOV<-->VMVN for i32 immediates. 
e.g., "vmov.i32 d4, #-118" can be assembled as "vmvn.i32 d4, #117"

rdar://10603913

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146925 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 23:51:07 +00:00
Jim Grosbach
2f196747f1 ARM assembly parsing and encoding support for LDRD(label). 
rdar://9932658

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146921 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 23:06:24 +00:00
Evan Cheng
8787c5f24e Add a if-conversion optimization that allows 'true' side of a diamond to be 
unpredicated. That is, turn
 subeq  r0, r1, #1
 addne  r0, r1, #1                                                                                                                                                                                                     
into
 sub    r0, r1, #1
 addne  r0, r1, #1

For targets where conditional instructions are always executed, this may be
beneficial. It may remove pseudo anti-dependency in out-of-order execution
CPUs. e.g.
 op    r1, ...
 str   r1, [r10]        ; end-of-life of r1 as div result
 cmp   r0, #65
 movne r1, #44  ; raw dependency on previous r1
 moveq r1, #12

If movne is unpredicated, then
 op    r1, ...
 str   r1, [r10]
 cmp   r0, #65
 mov   r1, #44  ; r1 written unconditionally
 moveq r1, #12

Both mov and moveq are no longer depdendent on the first instruction. This gives
the out-of-order execution engine more freedom to reorder them.

This has passed entire LLVM test suite. But it has not been enabled for any ARM
variant pending more performance evaluation.

rdar://8951196


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146914 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 22:01:30 +00:00
Akira Hatanaka
f06cb2b207 Add patterns for matching immediates whose lower 16-bit is cleared. These 
patterns emit a single LUi instruction instead of a pair of LUi and ORi.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146900 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 20:21:18 +00:00
Eli Friedman
1e2ec6abd4 Attempt to fix PR11607 by shuffling around which class defines which methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 20:06:03 +00:00
Akira Hatanaka
8209968306 Tidy up. Simplify logic. No functional change intended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146896 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:52:25 +00:00
Jim Grosbach
d22170e16a ARM NEON two-operand aliases for VPADD. 
rdar://10602276

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146895 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:51:03 +00:00
Akira Hatanaka
ee973147ac Remove definitions of double word shift plus 32 instructions. Assembler or 
direct-object emitter should emit the appropriate shift instruction depending
on the shift amount.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146893 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:44:09 +00:00
Jim Grosbach
6849019079 ARM VFP pre-UAL mnemonic aliases for fmul[sd]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146892 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:43:50 +00:00
Akira Hatanaka
ed538b5271 Remove unused predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:32:20 +00:00
Akira Hatanaka
89dc8d790d Remove the restriction on the first operand of the add node in SelectAddr. 
This change reduces the number of instructions generated.

For example, 
(load (add (sub $n0, $n1), (MipsLo got(s))))

results in the following sequence of instructions:
1. sub $n2, $n0, $n1
2. lw got(s)($n2)

Previously, three instructions were needed.
1. sub $n2, $n0, $n1
2. addiu $n3, $n2, got(s)
3. lw 0($n3)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146888 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:28:37 +00:00
Jim Grosbach
9c39789c36 ARM VFP pre-UAL mnemonic aliases for fcpy[sd] and fdiv[sd]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146887 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 19:02:41 +00:00
Jim Grosbach
61b74b4247 ARM NEON implied destination aliases for VMAX/VMIN. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146885 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 18:57:38 +00:00
Jim Grosbach
eeaf1c1636 ARM NEON relax parse time diagnostics for alignment specifiers. 
There's more variation that we need to handle. Error checking will need
to be on operand predicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146884 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 18:31:43 +00:00
Jim Grosbach
3346dcef02 Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146882 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 18:11:17 +00:00
Jakob Stoklund Olesen
9897c622e0 Remove a register class that can just as well be synthesized. 
Add the new TableGen register class synthesizer feature to the release
notes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146875 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 16:53:40 +00:00
Jakob Stoklund Olesen
0488d6ee5d Handle sub-register operands in recomputeRegClass(). 
Now that getMatchingSuperRegClass() returns accurate results, it can be
used to compute constraints imposed by instructions using a sub-register
of a virtual register.

This means we can recompute the register class of any virtual register
by combining the constraints from all its uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 16:53:37 +00:00
Jakob Stoklund Olesen
570f9a972e Emit a getMatchingSuperRegClass() implementation for every target. 
Use information computed while inferring new register classes to emit
accurate, table-driven implementations of getMatchingSuperRegClass().

Delete the old manual, error-prone implementations in the targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-19 16:53:34 +00:00
Jakub Staszak
53ce428646 - Use getExitingBlock instead of getExitingBlocks. 
- Remove trailing spaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146854 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-18 21:52:30 +00:00
Benjamin Kramer
0581ed792b Another variadics tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146852 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-18 20:51:31 +00:00
Joerg Sonnenberger
3470693641 Allow inlining of functions with returns_twice calls, if they have the 
attribute themselve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146851 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-18 20:35:43 +00:00
Benjamin Kramer
2ea4cdb81f Use the fancy new VariadicFunction template instead of a plain variadic function. 
Some compilers were complaining about passing StringRef to it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146850 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-18 19:59:20 +00:00
Benjamin Kramer
4c1ea552c5 Hexagon: Remove unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146846 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-18 12:00:09 +00:00
Chad Rosier
2e6119429f Revert 146728 as it's causing failures on some of the external bots as well as 
internal nightly testers.  Original commit message:

By popular demand, link up types by name if they are isomorphic and one is an
autorenamed version of the other.   This makes the IR easier to read, because
we don't end up with random renamed versions of the types after LTO'ing a large
app.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146838 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 22:19:53 +00:00
Kevin Enderby
67005b311c Revert r146822 at Pete Cooper's request as it broke clang self hosting. 
Hope I did this correctly :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146834 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 19:48:52 +00:00
Craig Topper
ab44d3cf49 Remove an unused X86ISD node type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146833 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 19:16:44 +00:00
Benjamin Kramer
e6cddb77dc X86: Factor the bswap asm matching to be slightly less horrible to read. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146831 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 14:36:05 +00:00
Pete Cooper
93ca12299f SimplifyCFG now predicts some conditional branches to true or false depending on previous branch on same comparison operands. 
For example, 

if (a == b) {
    if (a > b) // this is false
    
Fixes some of the issues on <rdar://problem/10554090>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146822 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 06:32:38 +00:00
Evan Cheng
b16db81719 Fix a CPSR liveness tracking bug introduced when I converted IT block to bundle. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146805 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 01:25:34 +00:00
Pete Cooper
2e33944c10 Refactor code used in InstCombine::FoldAndOfICmps to new file. 
This will be used by SimplifyCfg in a later commit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146803 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 01:20:32 +00:00
Rafael Espindola
8f7d12ccfd Add back the MC bits of 126425. Original patch by Nathan Jeffords. I added the 
asm parsing and testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146801 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 01:14:52 +00:00
Lang Hames
8b99c1e42c Make sure that the lower bits on the VSELECT condition are properly set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146800 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 01:08:46 +00:00
Jakob Stoklund Olesen
2027379985 Preserve more memory operands in ARMExpandPseudo. 
I don't think this affects anything but verbose assembly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146787 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 00:07:02 +00:00
Dan Gohman
ce16339930 The powers that be have decided that LLVM IR should now support 16-bit 
"half precision" floating-point with a first-class type.

This patch adds basic IR support (but not codegen support).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146786 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-17 00:04:22 +00:00
Eric Christopher
2e1b0c0cd9 When recursing for the original size of a type, stop if we are at a 
pointer or a reference type - we actually just want the size of the
pointer then for that.

Fixes rdar://10335756

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146785 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 23:42:45 +00:00
Eric Christopher
1a8e8869ca Resolve part of a fixme and add a new one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146784 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 23:42:42 +00:00
Eric Christopher
44625f91c5 Add a fixme here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146783 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 23:42:38 +00:00
Eric Christopher
abbb200feb Extraneous whitespace and 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146780 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 23:42:31 +00:00
Jakob Stoklund Olesen
b076fb7762 Fix off-by-one error in bucket sort. 
The bad sorting caused a misaligned basic block when building 176.vpr in
ARM mode.

<rdar://problem/10594653>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 23:00:05 +00:00
Dylan Noblesmith
efb0d1e42f APInt: update asserts for base-36 
Hexatridecimal was added in r139695.

And fix the unittest that now triggers the assert.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146754 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 20:36:31 +00:00
Jakob Stoklund Olesen
f9aabb8f32 Don't adjust for alignment padding in OffsetIsInRange. 
This adjustment is already included in the block offsets computed by
BasicBlockInfo, and adjusting again here can cause the pass to loop.

When CreateNewWater splits a basic block, OffsetIsInRange would reject
the new CPE on the next pass because of the too conservative alignment
adjustment. This caused the block to be split again, and so on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146751 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 19:10:00 +00:00
Benjamin Kramer
903456245b Hexagon: Fix a nasty order-of-initialization bug. 
Reenable the tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146750 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 19:08:59 +00:00
Devang Patel
c104cf2002 In DICompositeType, referenced to derived type is either metadata or null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146744 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 17:51:31 +00:00
Jakob Stoklund Olesen
f5bb45f895 Note ARM constant island alignment in the release notes. 
The command line option should be removed, but not until the feature has
gotten a lot of testing. The ARMConstantIslandPass tends to have subtle
bugs that only show up after a while.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146739 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 16:07:41 +00:00
Manuel Klimek
76f13017fc Adds a JSON parser and a benchmark (json-bench) to catch performance regressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146735 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 13:09:10 +00:00
Chris Lattner
9646acfccf By popular demand, link up types by name if they are isomorphic and one is an 
autorenamed version of the other.   This makes the IR easier to read, because
we don't end up with random renamed versions of the types after LTO'ing a large app.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146728 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 08:36:07 +00:00
Craig Topper
94438ba538 Don't try to match 'unpackl/h v, v' for 32xi8 and 16xi16 when only AVX1 is supported. Fix 'unpackh v, v' for 256-bit types to understand 128-bit lanes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146726 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 08:06:31 +00:00
NAKAMURA Takumi
46209476e7 Target/Hexagon: Fix CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146724 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 06:21:02 +00:00
Andrew Trick
1da282764a Avoid a confusing assert for silly options: -unroll-runtime -unroll-count=1. 
No need for an explicit test case for an unsupported combination of options.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146721 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 02:03:48 +00:00
Jim Grosbach
ddecfe54a3 ARM NEON aliases for vmovq.f* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146714 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-16 00:12:22 +00:00
Jim Grosbach
b6744db06f Thumb2 ADR assembly parsing w/o the .w suffix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146710 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 23:52:17 +00:00
Eli Friedman
7e840efc23 Make sure we correctly note the existence of an i8 immediate for vblendvps and friends, so we compute fixups correctly. PR11586. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 23:46:18 +00:00
Nick Lewycky
028700f544 Move parts of lib/Target that use CodeGen into lib/CodeGen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146702 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:58:58 +00:00
Eli Friedman
2f21e8c5ba Make check a bit more strict so we don't call ARM_AM::getFP32Imm with a value that isn't a 32-bit value. (This is just to be safe; I don't think this actually causes any issues in practice.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146700 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:56:53 +00:00
Jim Grosbach
a738da7bd3 ARM NEON VCLE is an alias for VCGE w/ the source operands reversed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146699 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:56:33 +00:00
Kostya Serebryany
a4b2b1d8fb [asan] add the name of the module to the description of a global variable. This improves the readability of global-buffer-overflow reports. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146698 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:55:55 +00:00
Tony Linthicum
d239ff67f2 Add MCTargetDesc library to Hexagon target 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146692 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:29:08 +00:00
Jim Grosbach
60d99a5278 ARM NEON VTBL/VTBX assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146691 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:27:11 +00:00
Jakob Stoklund Olesen
b6ff6ec85e Enable proper constant island alignment by default. 
The code size increase is tiny (< 0.05%) because so little code uses
16-byte constant pool entries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146690 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:14:45 +00:00
Chad Rosier
c8dd20170e Add missing zmovl AVX patterns which were causing crashes. 
Patch by Elena Demikhovsky <elena.demikhovsky@intel.com>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146689 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 22:11:31 +00:00
Kostya Serebryany
7bcfc9950b [asan] fix a bug (issue 19) where dlclose and the following mmap caused a false positive. compiler part. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146688 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 21:59:03 +00:00
Jim Grosbach
276ed0344c Silence warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146686 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 21:54:55 +00:00
Jim Grosbach
0aaf4cd9b3 ARM NEON two-register double spaced register list parsing support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146685 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 21:44:33 +00:00
Chad Rosier
0660cfe3c8 Fix assert in LowerBUILD_VECTOR for v16i16 type on AVX. 
Patch by Elena Demikhovsky <elena.demikhovsky@intel.com>!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146684 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 21:34:44 +00:00
Lang Hames
a0a251372f Fix VSELECT operand order. Was previously backwards, causing bogus vector shift results - <rdar://problem/10559581>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146671 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 18:57:27 +00:00
Devang Patel
0508d047fe Update DebugLoc while merging nodes at -O0. 
Patch by Kyriakos Georgiou!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146670 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 18:21:18 +00:00
Devang Patel
9642c57ac5 Virtual table holder field is either metadata or null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146665 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 17:55:56 +00:00
Hal Finkel
7f370b6155 Ensure that the nop that should follow a bl call in PPC64 ELF actually does 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146664 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 17:54:01 +00:00
Richard Osborne
27a7859bf7 Pass optLevel to XCoreDAGToDAGISel. 
Patch by Kyriakos Georgiou.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146656 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 15:18:35 +00:00
Eli Friedman
adeb0a6e64 Make constant folding for GEPs a bit more aggressive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146639 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 04:33:48 +00:00
Eli Friedman
ca072a3977 Don't try to form FGETSIGN after legalization; it is possible in some cases, but the existing code can't do it correctly. PR11570. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 02:07:20 +00:00
Chad Rosier
01d426e0e1 Use SmallVector/assign(), rather than std::vector/push_back(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146627 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 01:16:09 +00:00
Chad Rosier
a860b189e4 Add support for lowering fneg when AVX is enabled. 
rdar://10566486


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 01:02:25 +00:00
Pete Cooper
4e5a1ab10b Added InstCombine for "select cond, ~cond, x" type patterns 
These can be reduced to "~cond & x" or "~cond | x"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146624 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:56:45 +00:00
Owen Anderson
4e0adfa7f7 Enable synthesis of FLOG2 and FEXP2 SelectionDAG nodes from libm calls. These are already marked as illegal by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146623 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:54:12 +00:00
Eli Friedman
7d1ff37118 Make loop preheader insertion in LoopSimplify handle the case where the loop header is a landing pad correctly (by splitting the landingpad out of the loop header). Make some adjustments to the rest of LoopSimplify to make it clear that the rest of LoopSimplify isn't making bad assumptions about the presence of landing pads. PR11575. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:50:34 +00:00
Bill Wendling
7a13b72bbb Re-re-enable compact unwind after fixing a failure in SingleSource/Benchmarks/Shootout-C++/except.cpp and friends. It was encoding the stored registers in the wrong order. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146617 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:14:24 +00:00
Kevin Enderby
dac2953e3b Another improvement to the implementation of .incbin directive by avoiding a 
buffer copy.  Suggestion by Chris Lattner!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146614 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-15 00:00:27 +00:00
Bill Wendling
10e412ec6b The saved registers weren't being processed in the correct order. This lead to 
the compact unwind claiming that one register was saved before another, which
isn't all that great in general. Process them in the natural order. Reverse the
list only when necessary for the algorithm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146612 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:53:24 +00:00
Dan Gohman
f042660197 Move Instruction::isSafeToSpeculativelyExecute out of VMCore and 
into Analysis as a standalone function, since there's no need for
it to be in VMCore. Also, update it to use isKnownNonZero and
other goodies available in Analysis, making it more precise,
enabling more aggressive optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146610 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:49:11 +00:00
Jakob Stoklund Olesen
299b059cd6 Consider CPE alignment in CreateNewWater(). 
An aligned constant pool entry may require extra alignment padding where
the new water is created.  Take that into account when computing offset.

Also consider the alignment of other constant pool entries when
splitting a basic block.  Alignment padding may make it necessary to
move the split point higher.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146609 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:48:54 +00:00
Jim Grosbach
799ca9d1b7 ARM NEON better assembly operand range checking for lane indices of VLD/VST. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146608 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:35:06 +00:00
Jim Grosbach
9b1b390288 ARM NEON VLD2/VST2 lane indexed assembly parsing and encoding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146605 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:25:46 +00:00
Devang Patel
5211134fbd Do not sink instruction, if it is not profitable. 
On ARM, peephole optimization for ABS creates a trivial cfg triangle which tempts machine sink to sink instructions in code which is really straight line code. Sometimes this sinking may alter register allocator input such that use and def of a reg is divided by a branch in between, which may result in extra spills. Now mahine sink avoids sinking if final sink destination is post dominator.

Radar 10266272.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146604 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 23:20:38 +00:00
Bill Wendling
69fdcd7f90 Reapply r146481 with a fix to create the Builder value in the correct place and 
with the correct iterator.
<rdar://problem/10530851>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146600 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 22:45:33 +00:00
Kevin Enderby
c3fc3136a1 Improve the implementation of .incbin directive by replacing a loop by using 
getStreamer().EmitBytes.  Suggestion by Benjamin Kramer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146599 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 22:34:45 +00:00
Andrew Trick
19154f4576 LSR: Fold redundant bitcasts on-the-fly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146597 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 22:07:19 +00:00
Jim Grosbach
ec04a3f8db ARM NEON fix alignment encoding for VST2 w/ writeback. 
Add tests for w/ writeback instruction parsing and encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146594 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 21:49:24 +00:00
Kevin Enderby
c55accaddb Add the .incbin directive which takes the binary data from a file and emits 
it to the streamer.  rdar://10383898


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146592 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 21:47:48 +00:00
Jim Grosbach
2dbab5c33d Nuke old code. Missed in last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 21:41:32 +00:00
Jim Grosbach
bb3a2e4d0d ARM NEON refactor VST2 w/ writeback instructions. 
In addition to improving the representation, this adds support for assembly
parsing of these instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146588 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 21:32:11 +00:00
Jim Grosbach
20accfc6c7 ARM NEON improve factoring a bit. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146585 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 20:59:15 +00:00
Evan Cheng
020f4106f8 Model ARM predicated write as read-mod-write. e.g. 
r0 = mov #0
r0 = moveq #1

Then the second instruction has an implicit data dependency on the first
instruction. Sadly I have yet to come up with a small test case that
demonstrate the post-ra scheduler taking advantage of this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146583 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 20:00:08 +00:00
Jim Grosbach
e90ac9bce9 ARM NEON VST2 assembly parsing and encoding. 
Work in progress. Parsing for non-writeback, single spaced register lists
works now. The rest have the representations better factored, but still
need more to be able to parse properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146579 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 19:35:22 +00:00
Stepan Dyatkovskiy
ac12ef4ad2 Fix for bug #11429: Wrong behaviour for switches. Small improvement for code size heuristics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146578 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 19:19:17 +00:00
Dan Gohman
f9096e450b It turns out that clang does use pointer-to-function types to 
point to ARC-managed pointers sometimes. This fixes rdar://10551239.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146577 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 19:10:53 +00:00
Jakob Stoklund Olesen
5e46dcbb4b Fix speling and 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 18:49:13 +00:00
Akira Hatanaka
3faac0a78c Add support for local dynamic TLS model in LowerGlobalTLSAddress. Direct object 
emission is not supported yet, but a patch that adds the support should follow
soon.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146572 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 18:26:41 +00:00
Jim Grosbach
5dca1c9f63 Fix copy/pasto that skipped the 'modify' step. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146571 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 18:12:37 +00:00
Jim Grosbach
4677708d4f ARM/Thumb2 mov vs. mvn alias goes both ways. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146570 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 17:56:51 +00:00
Chad Rosier
6762f8f302 VFP2 is required for FP loads. Noticed by inspection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146569 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 17:55:03 +00:00
Chad Rosier
64ac91b4b6 Tidy up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146568 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 17:32:02 +00:00
Jim Grosbach
8d11c6349f ARM/Thumb2 'cmp rn, #imm' alias to cmn. 
When 'cmp rn #imm' doesn't match due to the immediate not being representable,
but 'cmn rn, #-imm' does match, use the latter in place of the former, as
it's equivalent.

rdar://10552389

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146567 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-12-14 17:30:24 +00:00