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40415 Commits

Author SHA1 Message Date
Owen Anderson
b9762c07cb Don't use PassInfo* as a type identifier for passes. Instead, use the address of the static 
ID member as the sole unique type identifier.  Clean up APIs related to this change.

llvm-svn: 110396
 2010-08-05 23:42:04 +00:00
Dan Gohman
8a813c4ded Remove IntrWriteMem, as it's the default. Rename IntrWriteArgMem 
to IntrReadWriteArgMem, as it's for reading as well as writing.

llvm-svn: 110395
 2010-08-05 23:36:21 +00:00
Bruno Cardoso Lopes
a26a97510a Support very basic (doesn't include ABI support in the front-end, varags, ...) 256-bit argument passing and return for AVX 
llvm-svn: 110394
 2010-08-05 23:35:51 +00:00
Dan Gohman
9135b410fe Implement AccessesArguments checking in the two-callsite form 
of BasicAA::getModRefInfo. This allows BasicAA to say that two
memset calls to non-aliasing memory locations don't interfere.

llvm-svn: 110393
 2010-08-05 23:34:50 +00:00
Dan Gohman
db40449189 Yes, we can do better, but this is not the place for it. 
llvm-svn: 110391
 2010-08-05 23:23:32 +00:00
Owen Anderson
86690fa988 Add the beginnings of infrastructure for range tracking. 
llvm-svn: 110388
 2010-08-05 22:59:19 +00:00
Jakob Stoklund Olesen
2ea6a20c07 Add basic verification of LiveIntervals. 
We verify that the LiveInterval is live at uses and defs, and that all
instructions have a SlotIndex.

Stuff we don't check yet:

- Is the LiveInterval minimal?
- Do all defs correspond to instructions or phis?
- Do all defs dominate all their live ranges?
- Are all live ranges continually reachable from their def?

llvm-svn: 110386
 2010-08-05 22:32:21 +00:00
Owen Anderson
bbeb4e2e58 Give JumpThreading+LVI a long-form cl::opt so that it's easier to toggle the default. 
llvm-svn: 110384
 2010-08-05 22:11:31 +00:00
Owen Anderson
68ee87e057 Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits. 
llvm-svn: 110383
 2010-08-05 22:10:46 +00:00
Dan Gohman
7260387710 Fix memdep's code for reasoning about dependences between two calls. A Ref 
response from getModRefInfo is not useful here. Instead, check for identical
calls only in the NoModRef case.

Reapply r110270, and strengthen it to compensate for the memdep changes.
When both calls are readonly, there is no dependence between them.

llvm-svn: 110382
 2010-08-05 22:09:15 +00:00
Gabor Greif
f2465b8757 remove the private hack from CallInst, it was not supposed to hit the branch anyway 
as a positive consequence the CallSite::getCallee() methods now can be rewritten to be
a bit more efficient

llvm-svn: 110380
 2010-08-05 21:25:49 +00:00
Eric Christopher
b10ca25085 Handle the memory barrier pseudo that goes to nothing for the JIT. 
llvm-svn: 110371
 2010-08-05 20:04:36 +00:00
Eric Christopher
bc14450d15 Set hasSideEffects on the 64-bit no-sse memory barrier. 
llvm-svn: 110369
 2010-08-05 19:54:59 +00:00
Jim Grosbach
fb6af5329d For local variables in functions with a frame pointer, use FP as a base 
register for local access when it's closer to the stack slot being refererenced
than the stack pointer. Make sure to take into account any argument frame
SP adjustments that are in affect at the time.

rdar://8256090

llvm-svn: 110366
 2010-08-05 19:27:37 +00:00
Bob Wilson
fbce203f20 Fix indentation. 
llvm-svn: 110363
 2010-08-05 19:00:21 +00:00
Jakob Stoklund Olesen
21e64c3fae Remove double-def checking from MachineVerifier, so a register does not have to 
be killed before being redefined.

These checks are usually disabled, and usually fail when enabled. We de facto
allow live registers to be redefined without a kill, the corresponding
assertions in RegScavenger were removed long ago.

llvm-svn: 110362
 2010-08-05 18:59:59 +00:00
Bob Wilson
4ba3c0a5e1 Add an ARM RSCrr instruction for disassembly only. 
Partial fix for PR7792.

llvm-svn: 110361
 2010-08-05 18:59:36 +00:00
Eric Christopher
61f3059ee1 Be a little bit more specific about target for the memory barrier 
instructions.

llvm-svn: 110360
 2010-08-05 18:36:20 +00:00
Eric Christopher
904ec3a392 Handle the pseudo in MCInstLower. 
llvm-svn: 110359
 2010-08-05 18:34:30 +00:00
Bob Wilson
9fbaea3765 Add an ARM RSBrr instruction for disassembly only. 
Partial fix for PR7792.

llvm-svn: 110358
 2010-08-05 18:23:43 +00:00
Jakob Stoklund Olesen
e00538e23e Avoid using a live std::multimap iterator while editing the map. It looks like 
we sometimes compare singular iterators, reported by ENABLE_EXPENSIVE_CHECKS.
This fixes PR7825.

llvm-svn: 110355
 2010-08-05 18:12:19 +00:00
Chandler Carruth
01c83a8512 Silence a GCC warning about && and || without explicit parentheses. This 
preserves the existing behavior, as it seems a concious choice to allow RS to
be null and BigStack marked true.

llvm-svn: 110307
 2010-08-05 03:04:21 +00:00
Dan Gohman
c42ed0aa91 Revert r110270 for now. It appears to uncover a memdep bug. 
llvm-svn: 110293
 2010-08-05 00:43:10 +00:00
Bob Wilson
214b004717 ARM "rrx" shift operands do not have an immediate. PR7790. 
llvm-svn: 110292
 2010-08-05 00:34:42 +00:00
Dan Gohman
fc6b043376 The trouble with testing for "ModRef" and "NoModRef" is that 
one is a suffix of the other, and FileCheck accepts superstrings.
Adjust the output to avoid this problem.

llvm-svn: 110280
 2010-08-04 23:37:55 +00:00
Bill Wendling
446a54d234 The lower invoke pass needs to have unreachable code elimination run after it 
because it could create such things. This fixes a MingW buildbot test failure.

llvm-svn: 110279
 2010-08-04 23:36:02 +00:00
Eric Christopher
0e09eb9f77 Make x86-64 membarriers work without sse and clean up some of the 
uses.

llvm-svn: 110274
 2010-08-04 23:03:04 +00:00
Dan Gohman
dcb6099f9e The two-callsite form of AliasAnalysis::getModRefInfo is documented 
to return Ref if the left callsite only reads memory read or written
by the right callsite; fix BasicAliasAnalysis to implement this.

Add AliasAnalysisEvaluator support for testing the two-callsite
form of getModRefInfo.

llvm-svn: 110270
 2010-08-04 22:56:29 +00:00
Jim Grosbach
511dbe9c8e and back in. false alarm on the tests from another unrelated local change. 
llvm-svn: 110269
 2010-08-04 22:46:09 +00:00
Eli Friedman
401dbe036d PR7814: Truncates cannot be ignored for signed comparisons. 
llvm-svn: 110268
 2010-08-04 22:40:58 +00:00
Devang Patel
53e2e4feae Implement target specific getDebugValueLocation(). 
llvm-svn: 110267
 2010-08-04 22:39:39 +00:00
Jakob Stoklund Olesen
dc6e812510 Coalesce stack slot accesses that arise when spilling both sides of a COPY. 
This helps avoid silly code:

    %R0<def = LOAD <fi#5>
    STORE <fi#5>, %R0<kill>

llvm-svn: 110266
 2010-08-04 22:35:11 +00:00
Jim Grosbach
497c60502c oops. revert for a moment to clean up tests first. 
llvm-svn: 110259
 2010-08-04 22:12:43 +00:00
Jim Grosbach
ece51f94db Reserve a stack slot if the function adjusts the stack but doesn't 
simplify the call frame pseudo instructions. In that situation, the
calculations for estimating the stack size will be way off, leading to
not having an emergency spill slot when we need one. It should be possible
to be more precise about tracking the adjustment values, but not really
necessary for correctness. Upcoming cleanups for PEI in general will
render that moot.

llvm-svn: 110258
 2010-08-04 22:10:15 +00:00
Jakob Stoklund Olesen
ecaa9f6ba4 Checkpoint SplitKit progress. 
We are now at a point where we can split around simple single-entry, single-exit
loops, although still with some bugs.

llvm-svn: 110257
 2010-08-04 22:08:39 +00:00
Devang Patel
97a93285f5 Implement target specific getDebugValueLocation(). 
llvm-svn: 110256
 2010-08-04 22:07:50 +00:00
Devang Patel
4c36d66bde Use location entry only of the location described by DBG_VALUE is valid. 
llvm-svn: 110255
 2010-08-04 22:07:27 +00:00
Bill Wendling
249580ed17 The EH prepare passes really want to be the last passes run before code-gen. 
llvm-svn: 110248
 2010-08-04 21:44:13 +00:00
Torok Edwin
319c3f56c8 Use indirect calls in PowerPC JIT. 
See PR5201. There is no way to know if direct calls will be within the allowed
range for BL. Hence emit all calls as indirect when in JIT mode.
Without this long-running applications will fail to JIT on PowerPC with a
relocation failure.

llvm-svn: 110246
 2010-08-04 20:47:44 +00:00
Devang Patel
35e3dd45c0 Fix typo in comment. 
llvm-svn: 110244
 2010-08-04 20:32:36 +00:00
Dan Gohman
bafce59252 Fix a minor bug which resulted in intermediate calculations 
using wider types than are necessary.

llvm-svn: 110241
 2010-08-04 19:52:50 +00:00
Dan Gohman
670b397ecc Change this llvm_unreachable to report_fatal_error, since it can 
be triggered by valid, if dubious, IR.

llvm-svn: 110240
 2010-08-04 18:51:09 +00:00
Devang Patel
cd5912c7bf While spilling live registers at the end of block check whether they are used by DBG_VALUE machine instructions or not. If a spilled register is used by DBG_VALUE machine instruction then insert a new DBG_VALUE machine instruction to encode variable's new location on stack. 
llvm-svn: 110235
 2010-08-04 18:42:02 +00:00
Devang Patel
eb7cff69c8 If a variable is spilled by code generator then use DW_OP_fbreg to describe its location on stack. 
llvm-svn: 110234
 2010-08-04 18:40:52 +00:00
Owen Anderson
0c1fe93d7c Experiments show that we can safely increase our unrolling threshold without unduly impacting code size, particularly 
since unrolling is not enabled at -Os.

llvm-svn: 110233
 2010-08-04 18:32:46 +00:00
Dale Johannesen
53bc276b33 Remove switch for disabling ARM tail calls. They 
seem to be working correctly.  No functional change.

llvm-svn: 110226
 2010-08-04 18:07:17 +00:00
Devang Patel
e48431509c Add DEBUG message. 
llvm-svn: 110224
 2010-08-04 18:06:05 +00:00
Dan Gohman
88d90617de Fix whitespace. 
llvm-svn: 110223
 2010-08-04 17:43:57 +00:00
Benjamin Kramer
8bce8e326c Enable COFF writer on mingw32 and cygwin. 
llvm-svn: 110200
 2010-08-04 15:32:40 +00:00
Kalle Raiskila
ce1e4d80cb Make SPU backend handle insertelement and 
store for "half vectors"

llvm-svn: 110198
 2010-08-04 13:59:48 +00:00