OSDN Git Service
Bill Wendling [Thu, 27 Nov 2008 07:34:10 +0000 (07:34 +0000)]
XFAil test due to reverting of patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60161
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Chris Lattner [Thu, 27 Nov 2008 07:20:04 +0000 (07:20 +0000)]
rename ThreadBlock to ProcessBlock, since it does other things than
just simple threading.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60157
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Bill Wendling [Thu, 27 Nov 2008 07:18:35 +0000 (07:18 +0000)]
Comment out code that isn't entirely correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60156
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Misha Brukman [Thu, 27 Nov 2008 06:41:20 +0000 (06:41 +0000)]
Fixed HTML closing tag, cleaned up some spacing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60153
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Sanjiv Gupta [Thu, 27 Nov 2008 05:58:04 +0000 (05:58 +0000)]
Removing redundant semicolons. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60149
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Chris Lattner [Thu, 27 Nov 2008 05:07:53 +0000 (05:07 +0000)]
Make jump threading substantially more powerful, in the following ways:
1. Make it fold blocks separated by an unconditional branch. This enables
jump threading to see a broader scope.
2. Make jump threading able to eliminate locally redundant loads when they
feed the branch condition of a block. This frequently occurs due to
reg2mem running.
3. Make jump threading able to eliminate *partially redundant* loads when
they feed the branch condition of a block. This is common in code with
lots of loads and stores like C++ code and 255.vortex.
This implements thread-loads.ll and rdar://
6402033.
Per the fixme's, several pieces of this should be moved into Transforms/Utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60148
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Evan Cheng [Thu, 27 Nov 2008 02:29:25 +0000 (02:29 +0000)]
Eliminate a compile time warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60145
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Evan Cheng [Thu, 27 Nov 2008 01:16:00 +0000 (01:16 +0000)]
Avoid inserting noop's in the middle of a loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60141
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Evan Cheng [Thu, 27 Nov 2008 00:49:46 +0000 (00:49 +0000)]
On x86 favors folding short immediate into some arithmetic operations (e.g. add, and, xor, etc.) because materializing an immediate in a register is expensive in turns of code size.
e.g.
movl 4(%esp), %eax
addl $4, %eax
is 2 bytes shorter than
movl $4, %eax
addl 4(%esp), %eax
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60139
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Dale Johannesen [Thu, 27 Nov 2008 00:43:21 +0000 (00:43 +0000)]
Add a missing case in visitADD.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60137
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Evan Cheng [Thu, 27 Nov 2008 00:37:06 +0000 (00:37 +0000)]
Add -march=x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60135
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Ted Kremenek [Thu, 27 Nov 2008 00:17:25 +0000 (00:17 +0000)]
Add typedef to StringMapEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60134
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Mikhail Glushenkov [Wed, 26 Nov 2008 22:59:45 +0000 (22:59 +0000)]
Disallow multiple edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60127
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Bill Wendling [Wed, 26 Nov 2008 22:42:19 +0000 (22:42 +0000)]
Add x86-specific test for add-with-overflow intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60125
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Bill Wendling [Wed, 26 Nov 2008 22:37:40 +0000 (22:37 +0000)]
Generate something sensible for an [SU]ADDO op when the overflow/carry flag is
the conditional for the BRCOND statement. For instance, it will generate:
addl %eax, %ecx
jo LOF
instead of
addl %eax, %ecx
; About 10 instructions to compare the signs of LHS, RHS, and sum.
jl LOF
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60123
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Chris Lattner [Wed, 26 Nov 2008 22:16:44 +0000 (22:16 +0000)]
Turn on my codegen prepare heuristic by default. It doesn't affect
performance in most cases on the Grawp tester, but does speed some
things up (like shootout/hash by 15%). This also doesn't impact
compile time in a noticable way on the Grawp tester.
It also, of course, gets the testcase it was designed for right :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60120
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Bill Wendling [Wed, 26 Nov 2008 19:19:05 +0000 (19:19 +0000)]
Small formatting change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60113
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Bill Wendling [Wed, 26 Nov 2008 19:07:40 +0000 (19:07 +0000)]
Update to explain how ssp and sspreq attributes override each other.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60112
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Devang Patel [Wed, 26 Nov 2008 18:13:11 +0000 (18:13 +0000)]
Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60111
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Evan Cheng [Wed, 26 Nov 2008 18:00:00 +0000 (18:00 +0000)]
Cosmetic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60110
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Duncan Sands [Wed, 26 Nov 2008 16:44:30 +0000 (16:44 +0000)]
Check that running the DAG combiner between type
and operation legalization does something useful.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60108
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Mikhail Glushenkov [Wed, 26 Nov 2008 13:40:08 +0000 (13:40 +0000)]
Describe some more options in the man page.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60105
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Nuno Lopes [Wed, 26 Nov 2008 13:10:39 +0000 (13:10 +0000)]
ignore build dirs and generated files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60104
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Sanjiv Gupta [Wed, 26 Nov 2008 11:19:00 +0000 (11:19 +0000)]
Allow custom lowering of ADDE/ADDC/SUBE/SUBC operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60102
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Mikhail Glushenkov [Wed, 26 Nov 2008 10:57:31 +0000 (10:57 +0000)]
Fix the -I option (llvmc -I dir1 -I dir2 didn't work).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60101
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Mikhail Glushenkov [Wed, 26 Nov 2008 10:56:56 +0000 (10:56 +0000)]
Refactor Tools.td to remove repetition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60100
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Mikhail Glushenkov [Wed, 26 Nov 2008 10:55:45 +0000 (10:55 +0000)]
Small fix: the error message was incorrect in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60099
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Sanjiv Gupta [Wed, 26 Nov 2008 10:53:50 +0000 (10:53 +0000)]
Emit declaration for globals and externs.
Custom lower AND, OR, XOR bitwise operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60098
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Dan Gohman [Wed, 26 Nov 2008 06:39:12 +0000 (06:39 +0000)]
Fish kill flag annotations in PUSH instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60095
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Dan Gohman [Wed, 26 Nov 2008 05:50:31 +0000 (05:50 +0000)]
LiveRanges are represented as half-open ranges. Fix the findLiveInMBBs code
and the LiveInterval.h top-level comment and accordingly. This fixes blocks
having spurious live-in registers in boundary cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60092
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Chris Lattner [Wed, 26 Nov 2008 04:59:11 +0000 (04:59 +0000)]
teach the new heuristic how to handle inline asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60088
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Devang Patel [Wed, 26 Nov 2008 04:58:14 +0000 (04:58 +0000)]
Disable -loop-index-split for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60087
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Ted Kremenek [Wed, 26 Nov 2008 03:33:13 +0000 (03:33 +0000)]
Add 'tell' method to raw_fd_ostream that clients can use to query the current location in the file the stream is writing to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60085
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Chris Lattner [Wed, 26 Nov 2008 03:20:37 +0000 (03:20 +0000)]
Improve ValueAlreadyLiveAtInst with a cheap and dirty, but effective
heuristic: the value is already live at the new memory operation if
it is used by some other instruction in the memop's block. This is
cheap and simple to compute (moreso than full liveness).
This improves the new heuristic even more. For example, it cuts two
out of three new instructions out of 255.vortex:DbmFileInGrpHdr,
which is one of the functions that the heuristic regressed. This
overall eliminates another 40 instructions from 403.gcc and visibly
reduces register pressure in 255.vortex (though this only actually
ends up saving the 2 instructions from the whole program).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60084
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Nick Lewycky [Wed, 26 Nov 2008 03:17:27 +0000 (03:17 +0000)]
__fastcall and __stdcall are mingw extensions to gcc for windows. Use the
__attribute__ notation which is supported on more platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60083
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Chris Lattner [Wed, 26 Nov 2008 03:02:41 +0000 (03:02 +0000)]
Start rewroking a subpiece of the profitability heuristic to be
phrased in terms of liveness instead of as a horrible hack. :)
In pratice, this doesn't change the generated code for either
255.vortex or 403.gcc, but it could cause minor code changes in
theory. This is framework for coming changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60082
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Zhongxing Xu [Wed, 26 Nov 2008 02:57:24 +0000 (02:57 +0000)]
Adjust indent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60081
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Chris Lattner [Wed, 26 Nov 2008 02:54:17 +0000 (02:54 +0000)]
add a long-overdue AllocaInst::isStaticAlloca method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60080
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Bill Wendling [Wed, 26 Nov 2008 02:21:12 +0000 (02:21 +0000)]
Add test for rdar://
6394879.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60079
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Chris Lattner [Wed, 26 Nov 2008 02:11:11 +0000 (02:11 +0000)]
add a comment, make save/restore logic more obvious.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60076
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Chris Lattner [Wed, 26 Nov 2008 02:00:14 +0000 (02:00 +0000)]
This adds in some code (currently disabled unless you pass
-enable-smarter-addr-folding to llc) that gives CGP a better
cost model for when to sink computations into addressing modes.
The basic observation is that sinking increases register
pressure when part of the addr computation has to be available
for other reasons, such as having a use that is a non-memory
operation. In cases where it works, it can substantially reduce
register pressure.
This code is currently an overall win on 403.gcc and 255.vortex
(the two things I've been looking at), but there are several
things I want to do before enabling it by default:
1. This isn't doing any caching of results, so it is much slower
than it could be. It currently slows down release-asserts llc
by 1.7% on 176.gcc: 27.12s -> 27.60s.
2. This doesn't think about inline asm memory operands yet.
3. The cost model botches the case when the needed value is live
across the computation for other reasons.
I'll continue poking at this, and eventually turn it on as llcbeta.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60074
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Evan Cheng [Wed, 26 Nov 2008 01:11:57 +0000 (01:11 +0000)]
Revert r60042. IndVarSimplify should check if APFloat is PPCDoubleDouble first before trying to convert it to an integer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60072
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Chris Lattner [Wed, 26 Nov 2008 00:26:16 +0000 (00:26 +0000)]
Teach CodeGenPrepare to look through Bitcast instructions when attempting to
optimize addressing modes. This allows us to optimize things like isel-sink2.ll
into:
movl 4(%esp), %eax
cmpb $0, 4(%eax)
jne LBB1_2 ## F
LBB1_1: ## TB
movl $4, %eax
ret
LBB1_2: ## F
movzbl 7(%eax), %eax
ret
instead of:
_test:
movl 4(%esp), %eax
cmpb $0, 4(%eax)
leal 4(%eax), %eax
jne LBB1_2 ## F
LBB1_1: ## TB
movl $4, %eax
ret
LBB1_2: ## F
movzbl 3(%eax), %eax
ret
This shrinks (e.g.) 403.gcc from
1133510 to
1128345 lines of .s.
Note that the 2008-10-16-SpillerBug.ll testcase is dubious at best, I doubt
it is really testing what it thinks it is.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60068
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Chris Lattner [Wed, 26 Nov 2008 00:12:08 +0000 (00:12 +0000)]
fix an over-reduced test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60067
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Chris Lattner [Wed, 26 Nov 2008 00:03:26 +0000 (00:03 +0000)]
this doesn't need EH
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60066
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Nuno Lopes [Wed, 26 Nov 2008 00:02:09 +0000 (00:02 +0000)]
ignore tests output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60065
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Nuno Lopes [Wed, 26 Nov 2008 00:00:44 +0000 (00:00 +0000)]
change AnnotationManager to use 'const char*' instead of std::string. this fixes the leakage of those strings and avoids the creation of such strings in static cosntructors (should result in a little improvement of startup time)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60064
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Oscar Fuentes [Tue, 25 Nov 2008 22:19:48 +0000 (22:19 +0000)]
CMake: Removed tools/llvmc2 directory hierarchy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60054
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Oscar Fuentes [Tue, 25 Nov 2008 22:18:49 +0000 (22:18 +0000)]
CMake: llvmc2 is now known as llvmc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60052
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:38:38 +0000 (21:38 +0000)]
Add a man page for llvmc. Really basic for now, will be updated later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60049
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:38:12 +0000 (21:38 +0000)]
Since the old llvmc was removed, rename llvmc2 to llvmc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60048
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:35:20 +0000 (21:35 +0000)]
Make -fsyntax-only, -include and -emit-llvm work for C++ and Objective-C/C++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60047
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:34:53 +0000 (21:34 +0000)]
docs: Add author info + fix incorrect code example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60046
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:34:29 +0000 (21:34 +0000)]
Small documentation update.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60045
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Mikhail Glushenkov [Tue, 25 Nov 2008 21:34:01 +0000 (21:34 +0000)]
Document the plugin priority feature.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60044
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Bill Wendling [Tue, 25 Nov 2008 19:40:17 +0000 (19:40 +0000)]
A simplification for checking whether the signs of the operands and sum differ. Thanks, Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60043
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Evan Cheng [Tue, 25 Nov 2008 19:00:29 +0000 (19:00 +0000)]
convertToSignExtendedInteger should return opInvalidOp instead of asserting if sematics of float does not allow arithmetics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60042
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Dan Gohman [Tue, 25 Nov 2008 18:53:54 +0000 (18:53 +0000)]
Suppress warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60041
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Chris Lattner [Tue, 25 Nov 2008 18:34:50 +0000 (18:34 +0000)]
This method got renamed, thanks to Mattias Holm for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60039
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Scott Michel [Tue, 25 Nov 2008 17:29:43 +0000 (17:29 +0000)]
CellSPU:
(a) Remove conditionally removed code in SelectXAddr. Basically, hope for the
best that the A-form and D-form address predicates catch everything before
the code decides to emit a X-form address.
(b) Expand vector store test cases to include the usual suspects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60034
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Nuno Lopes [Tue, 25 Nov 2008 15:57:52 +0000 (15:57 +0000)]
add info about how to run the tests with valgrind
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60030
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Bill Wendling [Tue, 25 Nov 2008 08:19:22 +0000 (08:19 +0000)]
Now with the correct type for the 0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60016
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Bill Wendling [Tue, 25 Nov 2008 08:13:20 +0000 (08:13 +0000)]
Get rid of unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60015
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Bill Wendling [Tue, 25 Nov 2008 08:12:19 +0000 (08:12 +0000)]
Hacker's Delight says, "Signed integer overflow of addition occurs if and only
if the operands have the same sign and the sum has sign opposite to that of the
operands."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60014
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Chris Lattner [Tue, 25 Nov 2008 07:25:26 +0000 (07:25 +0000)]
Teach MatchScaledValue to handle Scales by 1 with MatchAddr (which
can recursively match things) and scales by 0 by ignoring them.
This triggers once in 403.gcc, saving 1 (!!!!) instruction in the
whole huge app.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60013
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Chris Lattner [Tue, 25 Nov 2008 07:09:13 +0000 (07:09 +0000)]
significantly refactor all the addressing mode matching logic
into a new AddressingModeMatcher class. This makes it easier
to reason about and reduces passing around of stuff, but has
no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60012
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Chris Lattner [Tue, 25 Nov 2008 05:15:49 +0000 (05:15 +0000)]
refactor all the constantexpr/instruction handling code out into a
new FindMaximalLegalAddressingModeForOperation helper method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60011
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Chris Lattner [Tue, 25 Nov 2008 04:47:41 +0000 (04:47 +0000)]
another minor tweak
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60010
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Chris Lattner [Tue, 25 Nov 2008 04:42:10 +0000 (04:42 +0000)]
minor cleanups no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60009
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Oscar Fuentes [Tue, 25 Nov 2008 04:23:36 +0000 (04:23 +0000)]
CMake: Documented two cmake variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60008
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Scott Michel [Tue, 25 Nov 2008 04:03:47 +0000 (04:03 +0000)]
CellSPU: Relax constraints on when to generate a X-form address, evidently
they were too tight according to bug 3126.
Fix bug 3126.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60006
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Scott Michel [Tue, 25 Nov 2008 01:30:37 +0000 (01:30 +0000)]
CellSPU: test should use shlqby, not shlqbyi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60001
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Bill Wendling [Tue, 25 Nov 2008 00:56:34 +0000 (00:56 +0000)]
XFAIL this test. A recent CellSPU check-in broke it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60000
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Dan Gohman [Tue, 25 Nov 2008 00:52:40 +0000 (00:52 +0000)]
Initial support for anti-dependence breaking. Currently this code does not
introduce any new spilling; it just uses unused registers.
Refactor the SUnit topological sort code out of the RRList scheduler and
make use of it to help with the post-pass scheduler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59999
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Scott Michel [Tue, 25 Nov 2008 00:23:16 +0000 (00:23 +0000)]
CellSPU: Fix mnemonic typo in pattern; "shlqbyi" -> "shlqby".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59998
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Bill Wendling [Mon, 24 Nov 2008 23:28:09 +0000 (23:28 +0000)]
Testcase for constant CFStrings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59992
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Chris Lattner [Mon, 24 Nov 2008 22:44:16 +0000 (22:44 +0000)]
rearrange and tidy some code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59990
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Chris Lattner [Mon, 24 Nov 2008 22:40:05 +0000 (22:40 +0000)]
minor cleanups to debug code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59989
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Chris Lattner [Mon, 24 Nov 2008 21:27:20 +0000 (21:27 +0000)]
reenable test
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59986
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Chris Lattner [Mon, 24 Nov 2008 21:26:21 +0000 (21:26 +0000)]
reenable the right part of the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59985
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Bill Wendling [Mon, 24 Nov 2008 20:43:33 +0000 (20:43 +0000)]
Temporarily XFAIL this test. r59976 and r59972 broke it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59981
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Dan Gohman [Mon, 24 Nov 2008 19:53:21 +0000 (19:53 +0000)]
Move the scheduler constructor functions to SchedulerRegistry.h, to
simplify header dependencies for front-ends that just want to choose
a scheduler and don't need all the scheduling machinery declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59978
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Dan Gohman [Mon, 24 Nov 2008 19:51:59 +0000 (19:51 +0000)]
Fix an unused-parameter warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59977
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Chris Lattner [Mon, 24 Nov 2008 19:40:34 +0000 (19:40 +0000)]
revert an accidental commit, this fixes the regression on test/CodeGen/X86/isel-sink.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59976
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Chris Lattner [Mon, 24 Nov 2008 19:25:36 +0000 (19:25 +0000)]
Fix 3113: If we have a dead cyclic PHI, replace the whole thing
with an undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59972
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Bill Wendling [Mon, 24 Nov 2008 19:21:46 +0000 (19:21 +0000)]
- Make lowering of "add with overflow" customizable by back-ends.
- Mark "add with overflow" as having a custom lowering for X86. Give it a null
lowering representation for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59971
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Scott Michel [Mon, 24 Nov 2008 18:20:46 +0000 (18:20 +0000)]
CellSPU:
(a) Slight rethink on i64 zero/sign/any extend code - use a shuffle to
directly zero-extend i32 to i64, but use rotates and shifts for
sign extension. Also ensure unified register consistency.
(b) Add new test harness for i64 operations: i64ops.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59970
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Dan Gohman [Mon, 24 Nov 2008 17:33:52 +0000 (17:33 +0000)]
Check in the rest of this change. The isAntiDep flag needs to be passed
to removePred because an SUnit can both data-depend and anti-depend
on the same SUnit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59969
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Dan Gohman [Mon, 24 Nov 2008 17:24:27 +0000 (17:24 +0000)]
Pass the isAntiDep argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59968
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Dan Gohman [Mon, 24 Nov 2008 17:22:52 +0000 (17:22 +0000)]
Run post-RA scheduling after branch folding, as it tends to
obscure tail-merging opportunities.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59967
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Dan Gohman [Mon, 24 Nov 2008 17:18:39 +0000 (17:18 +0000)]
Fix a few HTML tidiness issues.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59966
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Scott Michel [Mon, 24 Nov 2008 17:11:17 +0000 (17:11 +0000)]
CellSPU:
(a) Improve the extract element code: there's no need to do gymnastics with
rotates into the preferred slot if a shuffle will do the same thing.
(b) Rename a couple of SPUISD pseudo-instructions for readability and better
semantic correspondence.
(c) Fix i64 sign/any/zero extension lowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59965
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Dan Gohman [Mon, 24 Nov 2008 16:45:15 +0000 (16:45 +0000)]
Delete some spurious characters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59964
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Dan Gohman [Mon, 24 Nov 2008 16:35:31 +0000 (16:35 +0000)]
Fix some "</p>"s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59963
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Dan Gohman [Mon, 24 Nov 2008 16:27:17 +0000 (16:27 +0000)]
Some documentation for LegalizeTypes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59962
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Matthijs Kooijman [Mon, 24 Nov 2008 16:01:21 +0000 (16:01 +0000)]
Minor fix debug for register allocation debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59961
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Duncan Sands [Mon, 24 Nov 2008 14:53:14 +0000 (14:53 +0000)]
If the type legalizer actually legalized anything
(this doesn't happen that often, since most code
does not use illegal types) then follow it by a
DAG combiner run that is allowed to generate
illegal operations but not illegal types. I didn't
modify the target combiner code to distinguish like
this between illegal operations and illegal types,
so it will not produce illegal operations as well
as not producing illegal types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59960
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Matthijs Kooijman [Mon, 24 Nov 2008 11:44:00 +0000 (11:44 +0000)]
Fix comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59958
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Torok Edwin [Mon, 24 Nov 2008 08:02:24 +0000 (08:02 +0000)]
NULL, unique pointers from malloc(0), and freed pointers are legal values for
noalias attribute parameters/return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59955
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Evan Cheng [Mon, 24 Nov 2008 07:34:46 +0000 (07:34 +0000)]
Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59953
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