Nick Lewycky
d802be39d7
Update the .cvs files for nocapture.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 09:41:54 +00:00
Nick Lewycky
73ddd4f00d
Commit missed files from nocapture change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 09:38:31 +00:00
Nick Lewycky
f23d0d392a
Resubmit support for the 'nocapture' attribute.
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The problematic part of this patch is that we were out of attribute bits,
requiring some fancy bit hacking to make it fit (by shrinking alignment)
without breaking existing users or the file format.
This change will require users to rebuild llvm-gcc to match llvm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 06:39:12 +00:00
Bill Wendling
bebbded574
Perform this loop only when the -debug flag is specified.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61238 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 02:09:57 +00:00
Dan Gohman
1385758215
Initialize the ImplicitDefed member, to avoid getting stale
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data from a previous block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 00:46:20 +00:00
Dan Gohman
5b200d8a13
Fix RegScavenger::forward() to work on basic blocks containing exactly
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one instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61236 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 00:45:13 +00:00
Dan Gohman
9755faab60
Delete the RegScavenging constructor that takes a MachineBasicBlock
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argument. Nothing was using it, and it set the MBB member without
calling enterBasicBlock, which was problematic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61234 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-19 00:34:32 +00:00
Mon P Wang
7538454f9f
Fix test to account for generating some vector code for mul v2i64 instead
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of incorrectly generating pmuldq
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61228 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 23:42:37 +00:00
Bill Wendling
e533f4e343
Didn't mean to commit this.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61222 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:19:50 +00:00
Dan Gohman
a5b2fee757
Teach LowerSubregs to preserve kill/dead information when lowering
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subreg instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:14:08 +00:00
Bill Wendling
82c19ae10a
Re-XFAIL this test until debug stuff settles down.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61219 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:13:31 +00:00
Dan Gohman
98c206921a
Make LowerSubregs' debug output for EXTRACT_SUBREG consistent with
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that of INSERT_SUBREG and SUBREG_TO_REG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61218 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:11:34 +00:00
Dan Gohman
f04865f234
Fix a copy+pasto in an assertion message.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61217 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:07:25 +00:00
Dan Gohman
07af765049
Fix indentation level.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61216 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:06:01 +00:00
Dan Gohman
bfd23c9961
When emitting instructions that define EFLAGS and the EFLAGS value isn't
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used, mark the defs as dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61215 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:03:42 +00:00
Dan Gohman
34d6ad73e1
When setting up the frame pointer, add it as a live-in register to all
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non-entry blocks, so that it doesn't appear use-before-def anywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61214 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 22:01:52 +00:00
Dan Gohman
2ccc839669
Print subreg information in MachineInstr::dump.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 21:51:27 +00:00
Mon P Wang
af9b952627
Fixed x86 code generation of multiple for v2i64. It was incorrect for SSE4.1.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61211 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 21:42:19 +00:00
Mon P Wang
1d045486ca
Added some basic test cases for r61209
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61210 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 20:05:58 +00:00
Mon P Wang
87c8a8f304
Added support for vector widening.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61209 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 20:03:17 +00:00
Evan Cheng
5c9f34b7a0
Remove dead comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 09:01:18 +00:00
Nick Lewycky
19c2892677
Oops! Left out a line.
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Simplifying the sdiv might allow further simplifications for our users.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 06:42:28 +00:00
Nick Lewycky
2a8f6597a3
Make all the vector elements positive in an srem of constant vector.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61195 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 06:31:11 +00:00
Chris Lattner
31535f1f04
Fix PR2929 by making bugpoint/code extract propagate the nothrow
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bit from the original function to the cloned one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61194 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 05:52:56 +00:00
Mikhail Glushenkov
65ee1e6ff4
Fix typo in error message.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61191 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 04:06:58 +00:00
Nick Lewycky
78eb804068
Recommit this grammar fix that was backed out along with nocapture.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 02:15:05 +00:00
Dan Gohman
7224170f6a
Give MachineLICM a name, for -time-passes etc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61184 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:37:56 +00:00
Dan Gohman
23b0d490cd
Move post-RA scheduling before branch folding for now, because branch
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folding's tail merging doesn't currently preserve liveness information
which post-RA scheduling requires.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61183 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:36:42 +00:00
Owen Anderson
2ebf63f8e2
Re-apply r61158 in a form that no longer breaks tests.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61182 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:27:19 +00:00
Dale Johannesen
a1d9cb1d46
Revert previous patch, appears to break bootstrap.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61181 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:23:41 +00:00
Dan Gohman
a32b7ac86f
Mark the x86 fp stack registers as "reserved". This tells LiveVariables
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and the RegisterScavenger not to expect traditional liveness
techniques are applicable to these registers, since we don't fully
modify the effects of push and pop after stackification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 01:05:09 +00:00
Dale Johannesen
12b882cf53
Fix the time regression I introduced in 464.h264ref with
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my last patch to this file.
The issue there was that all uses of an IV inside a loop
are actually references to Base[IV*2], and there was one
use outside that was the same but LSR didn't see the base
or the scaling because it didn't recurse into uses outside
the loop; thus, it used base+IV*scale mode inside the loop
instead of pulling base out of the loop. This was extra bad
because register pressure later forced both base and IV into
memory. Doing that recursion, at least enough
to figure out addressing modes, is a good idea in general;
the change in AddUsersIfInteresting does this. However,
there were side effects....
It is also possible for recursing outside the loop to
introduce another IV where there was only 1 before (if
the refs inside are not scaled and the ref outside is).
I don't think this is a common case, but it's in the testsuite.
It is right to be very aggressive about getting rid of
such introduced IVs (CheckForIVReuse and the handling of
nonzero RewriteFactor in StrengthReduceStridedIVUsers).
In the testcase in question the new IV produced this way
has both a nonconstant stride and a nonzero base, neither
of which was handled before. (This patch does not handle
all the cases where this can happen.) And when inserting
new code that feeds into a PHI, it's right to put such
code at the original location rather than in the PHI's
immediate predecessor(s) when the original location is outside
the loop (a case that couldn't happen before)
(RewriteInstructionToUseNewBase); better to avoid making
multiple copies of it in this case.
Everything above is exercised in
CodeGen/X86/lsr-negative-stride.ll (and ifcvt4 in ARM which is
the same IR).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61178 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 00:57:22 +00:00
Chris Lattner
5f4f84ba3e
reapply this hunk from Bill's reversion in r61169, it is conservative
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and safe and orthogonal from turning off load pre.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 00:51:32 +00:00
Bill Wendling
a5d5c0268a
XFAIL on Linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 00:35:21 +00:00
Chris Lattner
24313e7aba
make instnamer name unnamed blocks as well as instructions and args.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61175 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 00:33:11 +00:00
Bill Wendling
10ef02e2c8
Do not XFAIL.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-18 00:27:15 +00:00
Bill Wendling
13d10096e1
Temporarily revert r61027. It was causing a bootstrap failure in "release" mode
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with everyone's favorite error messages:
Comparing stages 2 and 3
warning: ./cc1-checksum.o differs
warning: ./cc1plus-checksum.o differs
Bootstrap comparison failure!
./c-decl.o differs
./cp/decl.o differs
./df-core.o differs
./gcc.o differs
./i386.o differs
./stor-layout.o differs
./tree-pretty-print.o differs
./tree.o differs
make[2]: *** [compare] Error 1
make[1]: *** [stage3-bubble] Error 2
See PR3227.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 23:31:20 +00:00
Devang Patel
3ac619e94f
XFAIL for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 22:54:54 +00:00
Devang Patel
965c4156a9
Xfail these tests for now.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 22:53:09 +00:00
Devang Patel
854967effe
Today the front-ends (llvm-gcc and clang) generate multiple llvm.dbg.compile_units to identify source file for various debug entities. Each llvm.dbg.compile_unit matches one file on the disk. However, the backend only supports one DW_TAG_compile_unit per .o file. The backend selects first compile_unit from the vector to construct DW_TAG_compile_unit entry, which is not correct in all cases.
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First step to resolve this is, record file name and directory directly in debug info for various debug entities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61164 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 22:39:29 +00:00
Owen Anderson
c7a21941c5
Revert r61158 for now, as it caused some test failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 22:17:27 +00:00
Owen Anderson
25dffa743b
Fix miscompilations caused by renumbering, and enable it as part of prealloc splitting.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 22:06:59 +00:00
Chris Lattner
851ba39dab
This adds some missing functions to the C binding:
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- ability to insert previously created instructions using a builder
- creation of aliases
- creation of inline asm constants
Patch by Zoltan Varga!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61153 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 21:39:50 +00:00
Bill Wendling
29bc4f0dcc
Forgot to revert r61031 when I reverted r61019, r61030, and r61040.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61150 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 20:59:57 +00:00
Misha Brukman
a54d4b27b6
Simplified marking code regions -- no need to use <div> to surround <pre> tags.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 18:11:40 +00:00
Misha Brukman
b61065598e
Instead of referring to the license file in the 2.3 release, refer to the
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always-current SVN version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 18:06:53 +00:00
Misha Brukman
9474d019ee
Added mention of the RELEASE_24 tag for the 2.4 release.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61138 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 16:27:23 +00:00
Mon P Wang
84aff84cfa
Fix expansion of vsetcc to set the high bit for true instead of 1.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 08:49:47 +00:00
Chris Lattner
f49a28cd02
insert some sequence points and preincrement an iterator to avoid
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iterator invalidation problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 05:42:08 +00:00
Chris Lattner
bce4afe839
Enhance heap sra to be substantially more aggressive w.r.t PHI
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nodes. This allows it to do fairly general phi insertion if a
load from a pointer global wants to be SRAd but the load is used
by (recursive) phi nodes. This fixes a pessimization on ppc
introduced by Load PRE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61123 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-17 05:28:49 +00:00