------------------------------------------------------------------------
r196970 | fang | 2013-12-10 16:37:41 -0500 (Tue, 10 Dec 2013) | 3 lines
on darwin<10, fallback to .weak_definition (PPC,X86)
.weak_def_can_be_hidden was not yet supported by the system assembler
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@206050 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r200705 | hfinkel | 2014-02-03 12:27:25 -0500 (Mon, 03 Feb 2014) | 5 lines
Expand vector bswap in LegalizeVectorOps
ISD::BSWAP was missing from the list of node types that should be expanded
element-wise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@205910 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r205738 | atrick | 2014-04-07 17:29:22 -0400 (Mon, 07 Apr 2014) | 16 lines
Put a limit on ScheduleDAGSDNodes::ClusterNeighboringLoads to avoid blowing up compile time.
Fixes PR16365 - Extremely slow compilation in -O1 and -O2.
The SD scheduler has a quadratic implementation of load clustering
which absolutely blows up compile time for large blocks with constant
pool loads. The MI scheduler has a better implementation of load
clustering. However, we have not done the work yet to completely
eliminate the SD scheduler. Some benchmarks still seem to benefit from
early load clustering, although maybe by chance.
As an intermediate term fix, I just put a nice limit on the number of
DAG users to search before finding a match. With this limit there are no
binary differences in the LLVM test suite, and the PR16365 test case
does not suffer any compile time impact from this routine.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@205808 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r200201 | stpworld | 2014-01-27 04:18:31 -0500 (Mon, 27 Jan 2014) | 31 lines
Fix for PR18102.
Issue outcomes from DAGCombiner::MergeConsequtiveStores, more precisely from
mem-ops sequence sorting.
Consider, how MergeConsequtiveStores works for next example:
store i8 1, a[0]
store i8 2, a[1]
store i8 3, a[1] ; a[1] again.
return ; DAG starts here
1. Method will collect all the 3 stores.
2. It sorts them by distance from the base pointer (farthest with highest
index).
3. It takes first consecutive non-overlapping stores and (if possible) replaces
them with a single store instruction.
The point is, we can't determine here which 'store' instruction
would be the second after sorting ('store 2' or 'store 3').
It happens that 'store 3' would be the second, and 'store 2' would be the third.
So after merging we have the next result:
store i16 (1 | 3 << 8), base ; is a[0] but bit-casted to i16
store i8 2, a[1]
So actually we swapped 'store 3' and 'store 2' and got wrong contents in a[1].
Fix: In sort routine just also take into account mem-op sequence number.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@205806 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r196168 | rafael.espindola | 2013-12-02 18:04:51 -0500 (Mon, 02 Dec 2013) | 2 lines
Convert two char* that are only ever used as booleans to bool.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@205764 91177308-0d34-0410-b5e6-96231b3b80d8
U lib/MC/MCSectionCOFF.cpp
U lib/CodeGen/TargetLoweringObjectFileImpl.cpp
U test/MC/COFF/weak-symbol.ll
U test/MC/COFF/tricky-names.ll
G .
--- Recording mergeinfo for reverse merge of r195823 into '.':
G .
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@196036 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195798 | rafael | 2013-11-26 17:18:37 -0800 (Tue, 26 Nov 2013) | 9 lines
Use simple section names for COMDAT sections on COFF.
With this patch we use simple names for COMDAT sections (like .text or .bss).
This matches the MSVC behavior.
When merging it is the COMDAT symbol that is used to decide if two sections
should be merged, so there is no point in building a fancy name.
This survived a bootstrap on mingw32.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195823 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195148 | rafael | 2013-11-19 11:52:52 -0800 (Tue, 19 Nov 2013) | 15 lines
Support multiple COFF sections with the same name but different COMDAT.
This is the first step to fix pr17918.
It extends the .section directive a bit, inspired by what the ELF one looks
like. The problem with using linkonce is that given
.section foo
.linkonce....
.section foo
.linkonce
we would already have switched sections when getting to .linkonce. The cleanest
solution seems to be to add the comdat information in the .section itself.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195822 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195670 | void | 2013-11-25 10:05:22 -0800 (Mon, 25 Nov 2013) | 5 lines
Unrevert r195599 with testcase fix.
I'm not sure how it was checking for the wrong values...
PR18023.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195672 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195635 | dsanders | 2013-11-25 11:14:43 +0000 (Mon, 25 Nov 2013) | 19 lines
Fixed tryFoldToZero() for vector types that need expansion.
Summary:
Moved the requirement for SelectionDAG::getConstant() to return legally
typed nodes slightly earlier. There were two optional DAGCombine passes
that were missed out and were required to produce type-legal DAGs.
Simplified a code-path in tryFoldToZero() to use SelectionDAG::getConstant().
This provides support for both promoted and expanded vector types whereas the
previous code only supported promoted vector types.
Fixes a "Type for zero vector elements is not legal" assertion detected by
an llvm-stress generated test.
Reviewers: resistor
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2251
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195651 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195491 | probinson | 2013-11-22 11:11:24 -0800 (Fri, 22 Nov 2013) | 11 lines
Teach ISel not to optimize 'optnone' functions (revised).
Improvements over r195317:
- Set/restore EnableFastISel flag instead of just running FastISel within
SelectAllBasicBlocks; the flag is checked in various places, and
FastISel won't run properly if those places don't do the right thing.
- Test looks for normal ISel versus FastISel behavior, and not
something more subtle that doesn't work everywhere.
Based on work by Andrea Di Biagio.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195604 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195398 | tstellar | 2013-11-21 16:41:05 -0800 (Thu, 21 Nov 2013) | 7 lines
SelectionDAG: Optimize expansion of vec_type = BITCAST scalar_type
The legalizer can now do this type of expansion for more
type combinations without loading and storing to and
from the stack.
NOTE: This is a candidate for the 3.4 branch.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195414 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195397 | tstellar | 2013-11-21 16:39:23 -0800 (Thu, 21 Nov 2013) | 11 lines
Split SETCC if VSELECT requires splitting too.
This patch is a rewrite of the original patch commited in r194542. Instead of
relying on the type legalizer to do the splitting for us, we now peform the
splitting ourselves in the DAG combiner. This is necessary for the case where
the vector mask is a legal type after promotion and still wouldn't require
splitting.
Patch by: Juergen Ributzka
NOTE: This is a candidate for the 3.4 branch.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195413 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195339 | chapuni | 2013-11-21 02:55:15 -0800 (Thu, 21 Nov 2013) | 5 lines
Revert r195317 (and r195333), "Teach ISel not to optimize 'optnone' functions."
It broke, at least, i686 target. It is reproducible with "llc -mtriple=i686-unknown".
FYI, it didn't appear to add either "-O0" or "-fast-isel".
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195375 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195355 | dsanders | 2013-11-21 13:24:49 +0000 (Thu, 21 Nov 2013) | 20 lines
Add support for legalizing SETNE/SETEQ by inverting the condition code and the result of the comparison.
Summary:
LegalizeSetCCCondCode can now legalize SETEQ and SETNE by returning the inverse
condition and requesting that the caller invert the result of the condition.
The caller of LegalizeSetCCCondCode must handle the inverted CC, and they do
so as follows:
SETCC, BR_CC:
Invert the result of the SETCC with SelectionDAG::getNOT()
SELECT_CC:
Swap the true/false operands.
This is necessary for MSA which lacks an integer SETNE instruction.
Reviewers: resistor
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2229
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195363 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195317 | probinson | 2013-11-20 22:33:32 -0800 (Wed, 20 Nov 2013) | 4 lines
Teach ISel not to optimize 'optnone' functions.
Based on work by Andrea Di Biagio.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195321 91177308-0d34-0410-b5e6-96231b3b80d8
------------------------------------------------------------------------
r195093 | atrick | 2013-11-18 19:29:56 -0800 (Mon, 18 Nov 2013) | 4 lines
Add an abstraction to handle patchpoint operands.
Hard-coded operand indices were scattered throughout lowering stages
and layers. It was super bug prone.
------------------------------------------------------------------------
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_34@195112 91177308-0d34-0410-b5e6-96231b3b80d8
This patch removes most of the trivial cases of weak vtables by pinning them to
a single object file. The memory leaks in this version have been fixed. Thanks
Alexey for pointing them out.
Differential Revision: http://llvm-reviews.chandlerc.com/D2068
Reviewed by Andy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195064 91177308-0d34-0410-b5e6-96231b3b80d8
This change is incorrect. If you delete virtual destructor of both a base class
and a subclass, then the following code:
Base *foo = new Child();
delete foo;
will not cause the destructor for members of Child class. As a result, I observe
plently of memory leaks. Notable examples I investigated are:
ObjectBuffer and ObjectBufferStream, AttributeImpl and StringSAttributeImpl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194997 91177308-0d34-0410-b5e6-96231b3b80d8
Implementing this on bigendian platforms could get strange. I added a
target hook, getStackSlotRange, per Jakob's recommendation to make
this as explicit as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194942 91177308-0d34-0410-b5e6-96231b3b80d8
and update test cases accordingly.
This doesn't affect the output dumped using llvm-dwarfdump, but
readelf does now dump the debug_loc section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194898 91177308-0d34-0410-b5e6-96231b3b80d8
