Commit Graph

34438 Commits

Author SHA1 Message Date
Evan Cheng
9818c043d2 Make 91378 more conservative.
1. Only perform (zext (shl (zext x), y)) -> (shl (zext x), y) when y is a constant. This makes sure it remove at least one zest.
2. If the shift is a left shift, make sure the original shift cannot shift out bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91399 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15 03:00:32 +00:00
John McCall
bc8858c3b0 You can't use typedefs to declare template member specializations, and
clang enforces it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91397 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15 02:35:24 +00:00
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
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
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
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
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
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
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
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
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
Lang Hames
a937f220e1 Moved spill weight calculation out of SimpleRegisterCoalescing and into its own pass: CalculateSpillWeights.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14 06:49:42 +00:00
Chris Lattner
a59adc4015 revert r91184, because it causes a crash on a .bc file I just
sent to Bob.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91268 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14 05:11:02 +00:00
Jim Grosbach
c3c2354ec9 atomic binary operations up to 32-bits wide.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91260 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-14 04:22:04 +00:00
Jeffrey Yasskin
898e9df8db Reinstate r91208 to fix available_externally linkage for globals, with
nlewycky's fix to add -rdynamic so the JIT can look symbols up in Linux builds
of the JITTests binary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91250 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13 20:30:32 +00:00
Torok Edwin
c4174d675b Using _MSC_VER there was wrong, better just use the already existing ifdefs for
x86 CPU detection for the X86 getHostCPUName too, and create a simple
getHostCPUName that returns "generic" for all else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91240 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13 08:59:40 +00:00
Chandler Carruth
0daf77e803 Don't leave pointers uninitialized in the default constructor. GCC complains
about the potential use of these uninitialized members under certain conditions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13 07:04:45 +00:00
Anton Korobeynikov
60283f9bc9 Fix weird typo which leads to unallocated memory access for nodes with 4 results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91233 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13 01:00:59 +00:00
Anton Korobeynikov
cdcad11c94 Do not allow uninitialize access during debug printing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91232 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-13 01:00:32 +00:00
Eli Friedman
bcae205a4b More info on this transformation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91230 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-12 23:23:43 +00:00