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Author SHA1 Message Date
Bill Wendling
614407a9d2 Initial work on disabling the scheduler. This is a work in progress, and this 
stuff isn't used just yet.

We want to model the GCC `-fno-schedule-insns' and `-fno-schedule-insns2'
flags. The hypothesis is that the people who use these flags know what they are
doing, and have hand-optimized the C code to reduce latencies and other
conflicts.

The idea behind our scheme to turn off scheduling is to create a map "on the
side" during DAG generation. It will order the nodes by how they appeared in the
code. This map is then used during scheduling to get the ordering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91392 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 01:54:51 +00:00
Evan Cheng
3466f13f38 Tail duplication should zap a copy it inserted for SSA update if the copy is the only use of its source. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91390 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 01:44:10 +00:00
Evan Cheng
ad9c0a3d8b Use sbb x, x to materialize carry bit in a GPR. The result is all one's or all zero's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91381 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:53:42 +00:00
Evan Cheng
8acb3100de Fold (zext (and x, cst)) -> (and (zext x), cst). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91380 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:52:11 +00:00
Daniel Dunbar
9682043ab5 NNT: Make sure stderr for build commands goes to log file, as intended but misdirected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91379 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:41:47 +00:00
Evan Cheng
99b653c36f Propagate zest through logical shift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91378 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:41:36 +00:00
Eric Christopher
0c479d3c6b Formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91377 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:40:55 +00:00
Bill Wendling
43cf6c3939 Revert these. They may have been causing 483_xalancbmk to fail: 
$ svn merge -c -91161 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91161 into '.':
U    lib/CodeGen/BranchFolding.cpp
U    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91113 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91113 into '.':
G    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91101 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91101 into '.':
U    include/llvm/CodeGen/MachineBasicBlock.h
G    lib/CodeGen/MachineBasicBlock.cpp
$ svn merge -c -91092 https://llvm.org/svn/llvm-project/llvm/trunk
--- Reverse-merging r91092 into '.':
G    include/llvm/CodeGen/MachineBasicBlock.h
G    lib/CodeGen/MachineBasicBlock.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91376 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:39:24 +00:00
Jim Grosbach
c67b556b5b nand atomic requires opposite operand ordering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91371 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-15 00:12:35 +00:00
Dan Gohman
2e141d744e Fix integer cast code to handle vector types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:40:38 +00:00
Dan Gohman
e3040e4ae5 Move Flag and isVoid after the vector types, since bit arithmetic with 
those enum values is less common.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:36:03 +00:00
Dan Gohman
83644f6b6d Fix these asserts to check the invariant that the code actually 
depends on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91360 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:34:36 +00:00
Dan Gohman
80d8930d28 Update this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:13:31 +00:00
Dan Gohman
688fb80334 Fix this to properly clear the FastISel debug location. Thanks to 
Bill for spotting this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91355 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 23:08:09 +00:00
Bob Wilson
d934b63ed1 Rearrange rules to add missing dependency and allow parallel makes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91352 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 22:44:22 +00:00
Johnny Chen
ec689151f2 Add encoding bits "let Inst{11-4} = 0b00000000;" to BR_JTr to disambiguate 
between BR_JTr and STREXD.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91339 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 21:51:34 +00:00
Bill Wendling
f8084fb1e1 The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine, 
but we need it to actually be 4-bytes in the FDE.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91337 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 21:49:44 +00:00
Jim Grosbach
80dd125e17 v6 sync insn copy/paste error 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91333 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 21:33:32 +00:00
Jim Grosbach
7c03dbd8ed Add ARMv6 memory and sync barrier instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91329 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 21:24:16 +00:00
Johnny Chen
c474796438 Fixed encoding bits typo of ldrexd/strexd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91327 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 21:01:46 +00:00
Jim Grosbach
a36c8f2c2e Thumb2 atomic operations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91321 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 20:14:59 +00:00
Dan Gohman
63de4c1901 Add svn:ignore entries for the Disassembler files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91320 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:55:22 +00:00
Dan Gohman
eda23faedb Move several function bodies which are rarely inlined out of line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:43:09 +00:00
Chris Lattner
cdfb302876 fix an obvious bug found by clang++ and collapse a redundant if. 
Here's the diagnostic from clang:

/Volumes/Data/dgregor/Projects/llvm/lib/Target/CppBackend/CPPBackend.cpp:989:23: warning: 'gv' is always NULL in this context
        printConstant(gv);
                      ^
1 diagnostic generated.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91318 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:34:32 +00:00
Dan Gohman
a4f8ecd85d Micro-optimize these functions in the case where they are not inlined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91316 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:32:31 +00:00
Jim Grosbach
a623f5a58d correct selection requirements for thumb2 vs. arm versions of the barrier intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91313 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:24:11 +00:00
Eric Christopher
38e1074c53 Add radar fixed in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91312 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 19:07:25 +00:00
Jim Grosbach
c219e4dd59 add Thumb2 atomic and memory barrier instruction definitions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91310 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 18:56:47 +00:00
Jim Grosbach
015d3b5704 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91307 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 18:36:32 +00:00
Jim Grosbach
f6b2862e81 ARM memory barrier instructions are not predicable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91305 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 18:31:20 +00:00
Daniel Dunbar
252a0dfa6a NNT: Use [e]grep -a when scanning logs, its possibly they will have non-text 
characters in them, in which case the grep will just return 'Binary file
matches' and the whole thing falls over.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91302 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:58:33 +00:00
Daniel Dunbar
1b54d423aa NNT: Always create the -sentdata.txt file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91301 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:58:27 +00:00
Dan Gohman
e2f65ee4b1 Clear the Processed set when it is no longer used, and clear the 
IVUses list in releaseMemory().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91296 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:35:17 +00:00
Dan Gohman
30844c3950 Fix a thinko; isNotAlreadyContainedIn had a built-in negative, so the 
condition was inverted when the code was converted to contains().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91295 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:31:01 +00:00
Dan Gohman
c71c0e958c Remove unnecessary #includes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91293 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:19:06 +00:00
Dan Gohman
35d913e6f3 Make the IVUses member private. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91291 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:14:32 +00:00
Dan Gohman
d3222b4224 Instead of having a ScalarEvolution pointer member in BasedUser, just pass 
the ScalarEvolution pointer into the functions which need it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91289 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:12:51 +00:00
Dan Gohman
a77d588c75 Don't bother cleaning up if there's nothing to clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91288 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:10:44 +00:00
Dan Gohman
6dc1ef3923 Delete an unused variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91287 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:08:09 +00:00
Dan Gohman
440b40d865 Drop Loop::isNotAlreadyContainedIn in favor of Loop::contains. The 
former was just exposing a LoopInfoBase implementation detail.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:06:50 +00:00
Jim Grosbach
d7d72d66b7 add ldrexd/strexd instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91284 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:02:55 +00:00
Dan Gohman
1ed8bb3556 LSR itself doesn't need LoopInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91283 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 17:02:34 +00:00
Dan Gohman
c398365349 LSR itself doesn't need DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:57:08 +00:00
Dan Gohman
67b94fb73d Remove the code in LSR that manually hoists expansions out of loops; 
SCEVExpander does this automatically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91281 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:52:55 +00:00
Dan Gohman
b058ceda56 Minor code cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91280 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:37:29 +00:00
Devang Patel
ffe966c15b Use DW_AT_specification to point to DIE describing function declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91278 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 16:18:45 +00:00
Shantonu Sen
bc1c99c4fb Remove empty file completely 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91277 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 14:15:15 +00:00
Torok Edwin
546d8d0e3e Add "generic" fallback. 
gcc warned that the function may not have a return value, indeed
for non-intel and non-amd X86 CPUs it is right (VIA, etc.).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 12:38:18 +00:00
Lang Hames
94a4a5eec6 Added CalcSpillWeights to CMakeLists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 07:43:25 +00:00
Bill Wendling
85de1e5bad Whitespace changes, comment clarification. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91274 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-14 06:51:19 +00:00