JF Bastien [Fri, 12 Jul 2013 23:33:03 +0000 (23:33 +0000)]
Fix ARM paired GPR COPY lowering
ARM paired GPR COPY was being lowered to two MOVr without CC. This
patch puts the CC back.
My test is a reduction of the case where I encountered the issue,
64-bit atomics use paired GPRs.
The issue only occurs with selectionDAG, FastISel doesn't encounter it
so I didn't bother calling it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186226
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Fri, 12 Jul 2013 23:09:43 +0000 (23:09 +0000)]
Fixed 80+ violation and added C++ to header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186225
91177308-0d34-0410-b5e6-
96231b3b80d8
Joey Gouly [Fri, 12 Jul 2013 23:08:06 +0000 (23:08 +0000)]
Fix a crash in EvaluateInDifferentElementOrder where it would generate an
undef vector of the wrong type.
LGTM'd by Nick Lewycky on IRC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186224
91177308-0d34-0410-b5e6-
96231b3b80d8
Akira Hatanaka [Fri, 12 Jul 2013 22:43:20 +0000 (22:43 +0000)]
[mips] Add instruction itinerary classes for mult, seb and slt instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186222
91177308-0d34-0410-b5e6-
96231b3b80d8
Bill Wendling [Fri, 12 Jul 2013 22:25:20 +0000 (22:25 +0000)]
Use the function attributes to pass along the stack protector buffer size.
Now that we have robust function attributes, don't use a command line option to
specify the stack protecto buffer size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186217
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 22:22:34 +0000 (22:22 +0000)]
Fix a off by one error about which members need to use the string table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186216
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 12 Jul 2013 22:08:48 +0000 (22:08 +0000)]
LFTR improvement to avoid truncation.
This is a reimplemntation of the patch originally in r186107.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186215
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 12 Jul 2013 22:08:44 +0000 (22:08 +0000)]
Cleanup LFTR logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186214
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Fri, 12 Jul 2013 22:08:41 +0000 (22:08 +0000)]
Cleanup: rename a variable to make the logic easier to follow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186213
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Fri, 12 Jul 2013 22:08:24 +0000 (22:08 +0000)]
Remove extraneous braces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186212
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 12 Jul 2013 21:54:43 +0000 (21:54 +0000)]
R600: Reapply testcase from r186178, the big endian issue should be fixed by r186196.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186209
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 21:17:17 +0000 (21:17 +0000)]
Change archive-update.test to create a new file on the fly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186206
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 20:54:34 +0000 (20:54 +0000)]
Remove empty directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186203
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 20:53:23 +0000 (20:53 +0000)]
Rename directory to avoid problems on windows.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186202
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 20:45:01 +0000 (20:45 +0000)]
fix autoconf build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186200
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 20:28:02 +0000 (20:28 +0000)]
Fix the build with c++03.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186198
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 20:21:39 +0000 (20:21 +0000)]
Change llvm-ar to use lib/Object.
This fixes two bugs is lib/Object that the use in llvm-ar found:
* In OS X created archives, the name can be padded with nulls. Strip them.
* In the constructor, remember the first non special member and use that in
begin_children. This makes sure we skip all special members, not just the
first one.
The change to llvm-ar itself consist of
* Using lib/Object for reading archives instead of ArchiveReader.cpp.
* Writing the modified archive directly, instead of creating an in memory
representation.
The old Archive library was way more general than what is needed, as can
be seen by the diffstat of this patch.
Having llvm-ar using lib/Object now opens the way for creating regular symbol
tables for both native objects and bitcode files so that we can use those
archives for LTO.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186197
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 12 Jul 2013 20:18:05 +0000 (20:18 +0000)]
R600: Remove unsafe type punning. No intended functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186196
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 19:34:24 +0000 (19:34 +0000)]
Add a test for llvm-ar's u option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186192
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 19:29:54 +0000 (19:29 +0000)]
R600: Remove the fpconst64.ll test which was failing on non-x86 buildbots
I'm guessing the failure had something to do with the double precision
floating point constant used in the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186191
91177308-0d34-0410-b5e6-
96231b3b80d8
Arnold Schwaighofer [Fri, 12 Jul 2013 19:16:07 +0000 (19:16 +0000)]
X86 cost model: Add cost for vectorized gather/scather
radar://
14351991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186189
91177308-0d34-0410-b5e6-
96231b3b80d8
Arnold Schwaighofer [Fri, 12 Jul 2013 19:16:04 +0000 (19:16 +0000)]
ARM cost model: Add cost for gather/scather
Fixes a 35% degradation compared to unvectorized code in
MiBench/automotive-susan and an equally serious regression on a private
image processing benchmark.
radar://
14351991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186188
91177308-0d34-0410-b5e6-
96231b3b80d8
Arnold Schwaighofer [Fri, 12 Jul 2013 19:16:02 +0000 (19:16 +0000)]
TargetTransformInfo: address calculation parameter for gather/scather
Address calculation for gather/scather in vectorized code can incur a
significant cost making vectorization unbeneficial. Add infrastructure to add
cost.
Tests and cost model for targets will be in follow-up commits.
radar://
14351991
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186187
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 19:13:16 +0000 (19:13 +0000)]
Relax the test a bit more to handle different UIDs and GIDs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186186
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 18:54:28 +0000 (18:54 +0000)]
Relax test a bit to handle umask differences.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186184
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 18:51:25 +0000 (18:51 +0000)]
Add a test for the 'o' option in llvm-ar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186183
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:15:26 +0000 (18:15 +0000)]
R600/SI: Add support for f64 kernel arguments
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186182
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:15:19 +0000 (18:15 +0000)]
R600/SI: Implement select and compares for SI
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186181
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:15:13 +0000 (18:15 +0000)]
R600/SI: Add fsqrt pattern for SI
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186180
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:15:08 +0000 (18:15 +0000)]
R600/SI: Add double precision fsub pattern for SI
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186179
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:15:02 +0000 (18:15 +0000)]
R600/SI: SI support for 64bit ConstantFP
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186178
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:14:56 +0000 (18:14 +0000)]
R600/SI: Add initial double precision support for SI
Patch by: Niels Ole Salscheider
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186177
91177308-0d34-0410-b5e6-
96231b3b80d8
Tom Stellard [Fri, 12 Jul 2013 18:14:40 +0000 (18:14 +0000)]
R600: Add ISA documents to the CompilerWriterInfo page
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186176
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Fri, 12 Jul 2013 18:11:14 +0000 (18:11 +0000)]
Fixed comment in header of Block Frequency Impl and added text for C++ mode.
This is a generic block implementation that works on more than machine blocks.
The C++ mode addition is a bonus due to the extra space provided.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186175
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 12 Jul 2013 18:06:44 +0000 (18:06 +0000)]
X86: Shrink certain forms of movsx.
In particular:
movsbw %al, %ax --> cbtw
movswl %ax, %eax --> cwtl
movslq %eax, %rax --> cltq
According to Intel's manual those have the same performance characteristics but
come with a smaller encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186174
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 16:29:27 +0000 (16:29 +0000)]
Add static.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186170
91177308-0d34-0410-b5e6-
96231b3b80d8
Stephen Lin [Fri, 12 Jul 2013 15:31:36 +0000 (15:31 +0000)]
X86: fold SSE2/AVX2 logical shift by immediate amount into zero vector when possible
Patch by Andrea Di Biagio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186165
91177308-0d34-0410-b5e6-
96231b3b80d8
Stephen Lin [Fri, 12 Jul 2013 14:54:12 +0000 (14:54 +0000)]
Start using CHECK-LABEL in some tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186163
91177308-0d34-0410-b5e6-
96231b3b80d8
Stephen Lin [Fri, 12 Jul 2013 14:51:05 +0000 (14:51 +0000)]
Add new directive called CHECK-LABEL to FileCheck.
CHECK-LABEL is meant to be used in place on CHECK on lines containing identifiers or other unique labels (they need not actually be labels in the source or output language, though.) This is used to break up the input stream into separate blocks delineated by CHECK-LABEL lines, each of which is checked independently. This greatly improves the accuracy of errors and fix-it hints in many cases, and allows for FileCheck to recover from errors in one block by continuing to subsequent blocks.
Some tests will be converted to use this new directive in forthcoming patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186162
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Fri, 12 Jul 2013 13:32:28 +0000 (13:32 +0000)]
Don't reject an empty archive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186159
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Fri, 12 Jul 2013 12:05:13 +0000 (12:05 +0000)]
Mark MDNode::getOperand as readonly.
We can't inline it but we can still CSE calls to it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186156
91177308-0d34-0410-b5e6-
96231b3b80d8
Chandler Carruth [Fri, 12 Jul 2013 11:18:55 +0000 (11:18 +0000)]
Revert "indvars: Improve LFTR by eliminating truncation when comparing
against a constant."
This reverts commit r186107. It didn't handle wrapping arithmetic in the
loop correctly and thus caused the following C program to count from
0 to UINT64_MAX instead of from 0 to 255 as intended:
#include <stdio.h>
int main() {
unsigned char first = 0, last = 255;
do { printf("%d\n", first); } while (first++ != last);
}
Full test case and instructions to reproduce with just the -indvars pass
sent to the original review thread rather than to r186107's commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186152
91177308-0d34-0410-b5e6-
96231b3b80d8
Vladimir Medic [Fri, 12 Jul 2013 09:25:35 +0000 (09:25 +0000)]
Add support for Mips break and syscall insructions. The corresponding test cases are added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186151
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Fri, 12 Jul 2013 09:20:14 +0000 (09:20 +0000)]
[SystemZ] Add test missing from r186148
Sigh, twice in two days sorry. One day I'll remember...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186150
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Fri, 12 Jul 2013 09:17:10 +0000 (09:17 +0000)]
[SystemZ] Optimize sign-extends of vector setccs
Normal (sext (setcc ...)) sequences are optimised into
(select_cc ..., -1, 0) by DAGCombiner::visitSIGN_EXTEND.
However, this is deliberately not done for vectors, and after
vector type legalization we have (sext_inreg (setcc ...)) instead.
I wondered about trying to extend DAGCombiner to handle this case too,
but it seemed to be a loss on some other targets I tried, even those for
which SETCC isn't "legal" and SELECT_CC is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186149
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Fri, 12 Jul 2013 09:08:12 +0000 (09:08 +0000)]
[SystemZ] Fix parsing of inline asm registers
GPR and FPR constraints like "{r2}" and "{f2}" weren't handled correctly
because the name-to-regno mapping depends on the value type and
(because of that) the internal names in RegStrings are not the
same as the AsmName.
CC constraints like "{cc}" didn't work either because there was no
associated register class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186148
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Fri, 12 Jul 2013 08:37:17 +0000 (08:37 +0000)]
[SystemZ] Improve spilling of LGDR and LDGR
If the source of these instructions is spilled we should load the destination.
If the destination is spilled we should store the source.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186147
91177308-0d34-0410-b5e6-
96231b3b80d8
Shuxin Yang [Fri, 12 Jul 2013 07:25:38 +0000 (07:25 +0000)]
Stylistic change.
Thank Nick for figuring out these problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186146
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Fri, 12 Jul 2013 06:09:24 +0000 (06:09 +0000)]
SLPVectorizer: Sink and enable CSE for ExtractElements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186145
91177308-0d34-0410-b5e6-
96231b3b80d8
Charles Davis [Fri, 12 Jul 2013 06:02:35 +0000 (06:02 +0000)]
Target/X86: Add explicit Win64 and System V/x86-64 calling conventions.
Summary:
This patch adds explicit calling convention types for the Win64 and
System V/x86-64 ABIs. This allows code to override the default, and use
the Win64 convention on a target that wants to use SysV (and
vice-versa). This is needed to implement the `ms_abi` and `sysv_abi` GNU
attributes.
Reviewers:
CC:
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186144
91177308-0d34-0410-b5e6-
96231b3b80d8
NAKAMURA Takumi [Fri, 12 Jul 2013 02:34:45 +0000 (02:34 +0000)]
llvm/test/Object/archive-toc.test: Use env(1) to satisfy win32 hosts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186143
91177308-0d34-0410-b5e6-
96231b3b80d8
NAKAMURA Takumi [Fri, 12 Jul 2013 02:13:03 +0000 (02:13 +0000)]
Windows/TimeValue.inc: Mute prefixed '0' on %d to emulate %e.
It fixes compatibility in llvm/test/Object/archive-toc.test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186142
91177308-0d34-0410-b5e6-
96231b3b80d8
Manman Ren [Fri, 12 Jul 2013 00:37:01 +0000 (00:37 +0000)]
PEI: refactor replaceFrameIndices(MF) to call replaceFrameIndices(BB).
replaceFrameIndices(MF) will iterate over the BBs and call
replaceFrameIndices(BB). No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186141
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Fri, 12 Jul 2013 00:04:18 +0000 (00:04 +0000)]
SLPVectorize: Replace the code that checks for vectorization candidates in successor blocks with code that scans PHINodes.
Before we could vectorize PHINodes scanning successors was a good way of finding candidates. Now we can vectorize the phinodes which is simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186139
91177308-0d34-0410-b5e6-
96231b3b80d8
David Dean [Thu, 11 Jul 2013 23:36:57 +0000 (23:36 +0000)]
Add the ability to use guarded malloc when running llvm lit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186134
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 11 Jul 2013 23:15:05 +0000 (23:15 +0000)]
llvm-ar: Clean up memory management with OwningPtr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186131
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 11 Jul 2013 21:59:16 +0000 (21:59 +0000)]
Sync SmallBitVector with BitVector. Add unit tests for the missing methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186123
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Thu, 11 Jul 2013 21:38:33 +0000 (21:38 +0000)]
Fixed up comments in TargetLowering.h to conform to the LLVM Style Guide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186121
91177308-0d34-0410-b5e6-
96231b3b80d8
Adrian Prantl [Thu, 11 Jul 2013 21:16:14 +0000 (21:16 +0000)]
In response to dblaikie's comment on r186035, replacing the
(reduced LLVM IR) + (full source in comment)
with the
(full LLVM IR) + (reduced src in comment)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186119
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 21:11:55 +0000 (21:11 +0000)]
Add tests for the before and after modifiers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186118
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 20:56:13 +0000 (20:56 +0000)]
Remove an argument that we dont use anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186116
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 20:01:30 +0000 (20:01 +0000)]
Use %llu to print a 64 bit number. Should fix the ARM bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186113
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 19:09:04 +0000 (19:09 +0000)]
Add a test for llvm-ar's m operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186110
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Thu, 11 Jul 2013 17:43:32 +0000 (17:43 +0000)]
PPC: Add some missing V_SET0 patterns
We had patterns to match v4i32 immAllZerosV -> V_SET0, but not patterns for
v8i16 (which occurs in the test case) or v16i8. The same was true for
V_SETALLONES (so I added the associated patterns for those as well).
Another bug found by llvm-stress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186108
91177308-0d34-0410-b5e6-
96231b3b80d8
Andrew Trick [Thu, 11 Jul 2013 17:08:59 +0000 (17:08 +0000)]
indvars: Improve LFTR by eliminating truncation when comparing against a constant.
Patch by Michele Scandale!
Adds a special handling of the case where, during the loop exit
condition rewriting, the exit value is a constant of bitwidth lower
than the type of the induction variable: instead of introducing a
trunc operation in order to match correctly the operand types, it
allows to convert the constant value to an equivalent constant,
depending on the initial value of the induction variable and the trip
count, in order have an equivalent comparison between the induction
variable and the new constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186107
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Thu, 11 Jul 2013 16:31:51 +0000 (16:31 +0000)]
PPCDAGToDAGISel::isRunOfOnes should return false on zero
This fixes a bug (found by csmith) at -O0 where we attempt to create a RLWIMI
with an out-of-range operand. Most uses of the isRunOfOnes function are guarded
by a condition that the value is not zero. This was not true in two places, and
in both places a zero input would result in an out-of-rage MB value (= 32).
To fix this, isRunOfOnes returns false on a zero input (and I've remove one
now-redundant guard).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186101
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 11 Jul 2013 16:22:38 +0000 (16:22 +0000)]
Use SmallVectorImpl& instead of SmallVector to avoid repeating small vector size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186098
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 16:11:21 +0000 (16:11 +0000)]
Add back code for supporting old mingw versions. Should bring the bots back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186096
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 11 Jul 2013 16:05:50 +0000 (16:05 +0000)]
Don't use a potentially expensive shift if all we want is one set bit.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186095
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 15:54:53 +0000 (15:54 +0000)]
InsertBefore is the same as AddBefore. Delete it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186094
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 15:47:04 +0000 (15:47 +0000)]
Looks like some versions of mingw don't have errno_t. Use int.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186092
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 11 Jul 2013 15:37:27 +0000 (15:37 +0000)]
Use move semantics if possible to construct ConstantRanges.
Arithmetic on ConstantRanges creates a lot of large temporary APInts that
benefit from move semantics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186091
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 15:35:23 +0000 (15:35 +0000)]
Fix a FIXME about the format and add a test.
While at it, use strftime on Unix too and use the thread safe versions
of localtime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186090
91177308-0d34-0410-b5e6-
96231b3b80d8
Arnold Schwaighofer [Thu, 11 Jul 2013 15:21:55 +0000 (15:21 +0000)]
LoopVectorize: Vectorize all accesses in address space zero with unit stride
We can vectorize them because in the case where we wrap in the address space the
unvectorized code would have had to access a pointer value of zero which is
undefined behavior in address space zero according to the LLVM IR semantics.
(Thank you Duncan, for pointing this out to me).
Fixes PR16592.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186088
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 13:44:10 +0000 (13:44 +0000)]
Merge these tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186084
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 13:31:38 +0000 (13:31 +0000)]
Use a more unique name to avoid conflicting with directory.ll tests when running
in parallel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186083
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 13:24:27 +0000 (13:24 +0000)]
Add a test for llvm-ar's 'd' operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186082
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 13:13:09 +0000 (13:13 +0000)]
Add tests for the 'x' operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186081
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 13:03:27 +0000 (13:03 +0000)]
Remove the 'N' modifier from llvm-ar.
* It is not present on OS X.
* It is untested.
* It is not needed for using ar in a build system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186080
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 12:54:11 +0000 (12:54 +0000)]
Delete dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186079
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 12:38:02 +0000 (12:38 +0000)]
Remove support for truncating names in archives.
* All systems we support have some form of long name support.
* The options has different names and semantics in different implementations
('f' on gnu, 'T' on OS X), which makes it unlikely it is normally used on
build systems.
* It was completely untested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186078
91177308-0d34-0410-b5e6-
96231b3b80d8
Rafael Espindola [Thu, 11 Jul 2013 12:28:36 +0000 (12:28 +0000)]
Sync llvm-ar's help string with the options it supports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186076
91177308-0d34-0410-b5e6-
96231b3b80d8
Benjamin Kramer [Thu, 11 Jul 2013 12:13:16 +0000 (12:13 +0000)]
Reduce the number of indirections in the attributes implementation.
- Coallocate entires for AttributeSetImpls and Nodes after the class itself.
- Remove mutable iterators from immutable classes.
- Remove unused context field from AttributeImpl.
- Derive Enum/Align/String attribute implementations from AttributeImpl instead
of having a whole new inheritance tree for them.
- Derive AlignAttributeImpl from EnumAttributeImpl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186075
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Thu, 11 Jul 2013 09:10:38 +0000 (09:10 +0000)]
[SystemZ] Add testcase missing from r186073
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186074
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Thu, 11 Jul 2013 09:10:09 +0000 (09:10 +0000)]
[SystemZ] Use zeroing form of RISBG for shift-and-AND sequences
Extend r186072 to handle shifts and ANDs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186073
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Thu, 11 Jul 2013 08:59:12 +0000 (08:59 +0000)]
[SystemZ] Use zeroing form of RISBG for some AND sequences
RISBG can handle some ANDs for which no AND IMMEDIATE exists.
It also acts as a three-operand AND for some cases where an
AND IMMEDIATE could be used instead.
It might be worth adding a pass to replace RISBG with AND IMMEDIATE
in cases where the register operands end up being the same and where
AND IMMEDIATE is smaller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186072
91177308-0d34-0410-b5e6-
96231b3b80d8
Richard Sandiford [Thu, 11 Jul 2013 08:37:13 +0000 (08:37 +0000)]
[SystemZ] Allow 8-bit operands to RISBG
RISBG has three 8-bit operands (I3, I4 and I5). I'd originally
restricted all three to 6 bits, since that's the only range we intended
to use at the time. However, the top bit of I4 acts as a "zero" flag for
RISBG, while the top bit of I3 acts as a "test" flag for RNSBG & co.
This patch therefore allows them to have the full 8-bit range.
I've left the fifth operand as a 6-bit value for now since the
upper 2 bits have no defined meaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186070
91177308-0d34-0410-b5e6-
96231b3b80d8
Duncan Sands [Thu, 11 Jul 2013 08:28:20 +0000 (08:28 +0000)]
TryToSimplifyUncondBranchFromEmptyBlock was checking that any common
predecessors of the two blocks it is attempting to merge supply the
same incoming values to any phi in the successor block. This change
allows merging in the case where there is one or more incoming values
that are undef. The undef values are rewritten to match the non-undef
value that flows from the other edge. Patch by Mark Lacey.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186069
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Thu, 11 Jul 2013 06:41:14 +0000 (06:41 +0000)]
Initialize AsmPrinter::MF in the constructor
MF is normally initialized in AsmPrinter::SetupMachineFunction, but if the file
contains only globals (no functions), then we need this to be initialized
because, when encountering an error, lowerConstant() references it.
This should fix the non-deterministic failures of
test/CodeGen/X86/nonconst-static-iv.ll, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186068
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Thu, 11 Jul 2013 05:55:57 +0000 (05:55 +0000)]
RegScavenger should not exclude undef uses
When computing currently-live registers, the register scavenger excludes undef
uses. As a result, undef uses are ignored when computing the restore points of
registers spilled into the emergency slots. While the register scavenger
normally excludes from consideration, when scavenging, registers used by the
current instruction, we need to not exclude undef uses. Otherwise, we might end
up requiring more emergency spill slots than we have (in the case where the
undef use *is* the currently-spilled register).
Another bug found by llvm-stress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186067
91177308-0d34-0410-b5e6-
96231b3b80d8
Craig Topper [Thu, 11 Jul 2013 05:39:44 +0000 (05:39 +0000)]
Fix indentation. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186065
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 05:39:02 +0000 (05:39 +0000)]
Fix a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186064
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 05:15:11 +0000 (05:15 +0000)]
Consolidate more lit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186063
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 05:11:33 +0000 (05:11 +0000)]
Consolidate some of the lit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186062
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 05:01:50 +0000 (05:01 +0000)]
Consolidate some of the lit tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186060
91177308-0d34-0410-b5e6-
96231b3b80d8
Nadav Rotem [Thu, 11 Jul 2013 04:54:05 +0000 (04:54 +0000)]
SLPVectorizer: refactor the code that places extracts. Place the code that decides where to put extracts in the build-tree phase. This allows us to take the cost of the extracts into account.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186058
91177308-0d34-0410-b5e6-
96231b3b80d8
Michael Gottesman [Thu, 11 Jul 2013 04:40:01 +0000 (04:40 +0000)]
Teach TailRecursionElimination to handle certain cases of nocapture escaping allocas.
Without the changes introduced into this patch, if TRE saw any allocas at all,
TRE would not perform TRE *or* mark callsites with the tail marker.
Because TRE runs after mem2reg, this inadequacy is not a death sentence. But
given a callsite A without escaping alloca argument, A may not be able to have
the tail marker placed on it due to a separate callsite B having a write-back
parameter passed in via an argument with the nocapture attribute.
Assume that B is the only other callsite besides A and B only has nocapture
escaping alloca arguments (*NOTE* B may have other arguments that are not passed
allocas). In this case not marking A with the tail marker is unnecessarily
conservative since:
1. By assumption A has no escaping alloca arguments itself so it can not
access the caller's stack via its arguments.
2. Since all of B's escaping alloca arguments are passed as parameters with
the nocapture attribute, we know that B does not stash said escaping
allocas in a manner that outlives B itself and thus could be accessed
indirectly by A.
With the changes introduced by this patch:
1. If we see any escaping allocas passed as a capturing argument, we do
nothing and bail early.
2. If we do not see any escaping allocas passed as captured arguments but we
do see escaping allocas passed as nocapture arguments:
i. We do not perform TRE to avoid PR962 since the code generator produces
significantly worse code for the dynamic allocas that would be created
by the TRE algorithm.
ii. If we do not return twice, mark call sites without escaping allocas
with the tail marker. *NOTE* This excludes functions with escaping
nocapture allocas.
3. If we do not see any escaping allocas at all (whether captured or not):
i. If we do not have usage of setjmp, mark all callsites with the tail
marker.
ii. If there are no dynamic/variable sized allocas in the function,
attempt to perform TRE on all callsites in the function.
Based off of a patch by Nick Lewycky.
rdar://
14324281.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186057
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Thu, 11 Jul 2013 01:55:55 +0000 (01:55 +0000)]
Move r186044 tests into CodeGen/X86
I had thought that these tests could be target-neutral, but in practice this is
not the case (on some targets, like Hexagon and Darwin), they trigger an assert
(a different assert than the one that r186044 fixes).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186051
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Wed, 10 Jul 2013 23:25:03 +0000 (23:25 +0000)]
Set REQUIRES shell on the test cases for r186044
Trying to fix the i686-mingw32 build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186046
91177308-0d34-0410-b5e6-
96231b3b80d8
Hal Finkel [Wed, 10 Jul 2013 23:11:14 +0000 (23:11 +0000)]
XFAIL the test cases for r186044 on Hexagon
For some reason, the Hexagon backend does not reject these invalid static
initializer expressions, but instead crashes in AsmPrinter::EmitGlobalConstant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186045
91177308-0d34-0410-b5e6-
96231b3b80d8