cbe5e16eb5
Allow scalarrepl to treat an all-zero GEP just as bitcast.
...
This includes not marking a GEP involving a vector as unsafe, but only when it
has all zero indices. This allows scalarrepl to work in a few more cases.
llvm-svn: 57177
2008-10-06 16:23:31 +00:00
7875876e46
reorder #include order, patch by Kenneth Boyd!
...
llvm-svn: 57148
2008-10-06 03:54:25 +00:00
0c41861f39
Add #include to get alloca, patch by Kenneth Boyd!
...
llvm-svn: 57147
2008-10-06 03:53:16 +00:00
851e72cd22
fix an incorrect and extremely confusing error message
...
llvm-svn: 57123
2008-10-05 18:24:03 +00:00
4744ed5f94
make the autoupgrade code for ret attributes dramatically simpler
...
and actually work. We can now read the llvm 2.3 bc file from PR2849
llvm-svn: 57122
2008-10-05 18:22:09 +00:00
0ea0fce8fe
regenerate
...
llvm-svn: 57114
2008-10-05 16:49:34 +00:00
33b90e3f59
clean ArgTypeListI production: free the PATypeHolder
...
llvm-svn: 57113
2008-10-05 16:49:03 +00:00
37e560cde1
Emit type-correct constant null. Also fix a typo.
...
Patch by Robert G. Jakabosky!
llvm-svn: 57110
2008-10-05 15:07:06 +00:00
d2aded08ac
Fix weird think-o and unbreak build on all gcc-3.4.x-based platforms (e.g. mingw)
...
llvm-svn: 57106
2008-10-05 08:53:29 +00:00
f9325e5f67
this case is matched now.
...
llvm-svn: 57096
2008-10-05 02:16:12 +00:00
917a6c1343
rewrite bswap matching to be more general, allowing arbitrary
...
shifting and masking inside a bswap expr. This allows it to handle
the cases from PR2842, which involve the intermediate 'or'
expressions being shifted, not just the input value.
llvm-svn: 57095
2008-10-05 02:13:19 +00:00
ca91f265c4
fix a bug where the bswap matcher could match a case involving
...
ashr. It should only apply to lshr.
llvm-svn: 57089
2008-10-05 00:50:57 +00:00
2416896b3c
wrap some long lines and expand i32 mul's to libcalls, inspired by a
...
patch by Mikael Lepisto!
llvm-svn: 57077
2008-10-04 21:27:46 +00:00
b5abd78ab5
CMake: Reflected changes on source file structure. New plugin support
...
for llvmc2 incomplete.
llvm-svn: 57076
2008-10-04 21:18:50 +00:00
1d35e9aebe
Ignore loads from and stores to local memory (i.e. allocas)
...
when deciding whether to mark a function readnone/readonly.
Since the pass is currently run before SROA, this may be
quite helpful. Requested by Chris on IRC.
llvm-svn: 57050
2008-10-04 13:24:24 +00:00
fc9bc3cf23
Allow the construction of SCEVs with SCEVCouldNotCompute operands, by
...
implementing folding. Fixes PR2857.
llvm-svn: 57049
2008-10-04 11:19:07 +00:00
b52ef06c8c
Revert r56675 - it breaks unwinding runtime everywhere.
...
llvm-svn: 57048
2008-10-04 11:09:36 +00:00
a6f9bb7905
Add implementations for sys::Memory::setWritable and sys::Memory::setExecutable on Win32 platform.
...
llvm-svn: 57047
2008-10-04 08:15:32 +00:00
68fec886ed
Fix compilation error on MSVC.
...
llvm-svn: 57046
2008-10-04 08:11:49 +00:00
13b048268b
Fix fast-isel's handling of atomic instructions. They may
...
expand to multiple basic blocks, in which case fast-isel
needs to informed of which block to use as it resumes
inserting instructions.
llvm-svn: 57040
2008-10-04 00:56:36 +00:00
78bb44fcd4
Fix a bug in the local allocator's liveness computation where it
...
was setting kill flags on tied uses in two-address instructions.
The kill flags were causing the allocator to think it could
allocate the use and its tied def in different registers.
llvm-svn: 57039
2008-10-04 00:31:14 +00:00
8c36a1c09c
Make atomic Swap work, 64-bit on x86-32.
...
Make it all work in non-pic mode.
llvm-svn: 57034
2008-10-03 22:25:52 +00:00
e21903987f
Clean up some multiple-return-value code that is no longer
...
applicable.
llvm-svn: 57033
2008-10-03 22:21:24 +00:00
e4924e1026
Fix function attribute verification check.
...
Thanks Duncan!
llvm-svn: 57029
2008-10-03 21:11:02 +00:00
5d60c1ebb1
Pass MemOperand through for 64-bit atomics on 32-bit,
...
incidentally making the case where the memop is a
pointer deref work. Fix cmp-and-swap regression.
llvm-svn: 57027
2008-10-03 19:41:08 +00:00
f963403b58
Nick Lewycky's patch.
...
While hosting instruction check PHI node.
llvm-svn: 57025
2008-10-03 18:57:37 +00:00
b62cd7ea98
Use -1ULL instead of uint64_t(-1), at Anton's suggestion.
...
llvm-svn: 57021
2008-10-03 17:56:45 +00:00
37165b13e5
Verify function attributes.
...
llvm-svn: 57020
2008-10-03 17:50:00 +00:00
8428cfc93b
Fix typos pointed out by Duncan. Also untabify these files.
...
llvm-svn: 57018
2008-10-03 17:11:58 +00:00
a8c424bf61
Unbreak build.
...
llvm-svn: 57017
2008-10-03 17:11:57 +00:00
2c836cf187
Avoid creating two TargetLowering objects for each target.
...
Instead, just create one, and make sure everything that needs
it can access it. Previously most of the SelectionDAGISel
subclasses all had their own TargetLowering object, which was
redundant with the TargetLowering object in the TargetMachine
subclasses, except on Sparc, where SparcTargetMachine
didn't have a TargetLowering object. Change Sparc to work
more like the other targets here.
llvm-svn: 57016
2008-10-03 16:55:19 +00:00
eae96ce3ec
Remove an unused field.
...
llvm-svn: 57014
2008-10-03 16:17:33 +00:00
b22ef71d46
On Darwin ARM, memory needs special handling to do JIT. This patch expands
...
this handling to work properly for modifying stub functions, relocations
back to entry points after JIT compilation, etc..
llvm-svn: 57013
2008-10-03 16:17:20 +00:00
332ad5e016
Indexing off by one resulted in errant encoding of source register for
...
reg->reg moves.
llvm-svn: 57011
2008-10-03 15:53:56 +00:00
af929abc01
NeedStub/DoesntNeedStub logic was reversed, leading to not using a stub
...
for global relocations that do need them (libc calls, for example).
llvm-svn: 57010
2008-10-03 15:52:42 +00:00
cbff1d08f2
regenerate
...
llvm-svn: 57009
2008-10-03 15:52:39 +00:00
bc7b224ce4
fix more memleaks in ResolveTypeTo() and ParseGlobalVariable()
...
llvm-svn: 57008
2008-10-03 15:51:46 +00:00
877b7e2128
regenerate with bison 2.3
...
llvm-svn: 57007
2008-10-03 15:45:58 +00:00
0d1e9a8e04
Switch the MachineOperand accessors back to the short names like
...
isReg, etc., from isRegister, etc.
llvm-svn: 57006
2008-10-03 15:45:36 +00:00
6d8e67f512
fix memleak in FunctionHeaderH
...
llvm-svn: 57005
2008-10-03 15:44:21 +00:00
6e42742d2d
The result of getSetCCResultType (eg: i32) may be larger
...
than the type an i1 is promoted to (eg: i8). Account
for this. Noticed by Tilmann Scheller on CellSPU; he
will hopefully take care of fixing this in LegalizeDAG
and adding a testcase!
llvm-svn: 56997
2008-10-03 07:41:46 +00:00
3a813a5d3f
Teach internalize to preserve the callgraph.
...
Why? Because it was there!
llvm-svn: 56996
2008-10-03 07:36:09 +00:00
74056ae3d5
Acquire the lock only when necessary. More precisely, do not acquire
...
the lock when calling a method which may materialize the llvm::Function.
llvm-svn: 56995
2008-10-03 07:27:08 +00:00
cb4f156b6b
SplitBlock should only attempt to update LoopInfo if it is actually being used.
...
llvm-svn: 56994
2008-10-03 06:55:35 +00:00
4e072a75cc
Implement fast-isel support for zero-extending from i1.
...
It turns out that this is a fairly common operation,
and it's easy enough to handle.
llvm-svn: 56990
2008-10-03 01:28:47 +00:00
b01a9c94d4
Fix X86FastISel to handle dynamic allocas that have avoided
...
getting inserted into the ValueMap. This avoids infinite
recursion in some rare cases.
llvm-svn: 56989
2008-10-03 01:27:49 +00:00
1ab1d31f7a
Optimize conditional branches in X86FastISel. This replaces
...
sequences like this:
sete %al
testb %al, %al
jne LBB11_1
with this:
je LBB11_1
llvm-svn: 56969
2008-10-02 22:15:21 +00:00
a78bae34a5
Add a new MachineBasicBlock utility function, isLayoutSuccessor, that
...
can be used when deciding if a block can transfer control to another
via a fall-through instead of a branch.
llvm-svn: 56968
2008-10-02 22:09:09 +00:00
72a9e7367c
fix build gcc 4.3
...
llvm-svn: 56965
2008-10-02 20:15:08 +00:00
c5b45fec6b
Use a multimap rather than a map for holding the list of copies to insert, so we don't lose copies when two of them have
...
the same source. I don't know what I was thinking when I wrote this originally.
Note: There's probably a more efficient way to do this, but I need to think about it some more, and about what determinism
guarantees need to be present.
llvm-svn: 56964
2008-10-02 19:40:33 +00:00
867d549fce
Handle some 64-bit atomics on x86-32, some of the time.
...
llvm-svn: 56963
2008-10-02 18:53:47 +00:00
0db9d67f9a
Remove redundant check.
...
llvm-svn: 56960
2008-10-02 18:38:23 +00:00
b25f4637dd
A Partitioned Boolean Quadratic Programming (PBQP) based register allocator.
...
Contributed by Lang Hames.
llvm-svn: 56959
2008-10-02 18:29:27 +00:00
e3c43d6279
CMake: Added Host.cpp to lib/System/CMakeLists.txt.
...
llvm-svn: 56957
2008-10-02 17:39:29 +00:00
88536398ff
Fix a think-o in isSafeToMove. This fixes it from thinking that
...
volatile memory references are safe to move.
llvm-svn: 56948
2008-10-02 15:04:30 +00:00
b158fd751c
Work around an interaction between fast-isel and regalloc=local. The
...
local register allocator's physreg liveness doesn't recognize subregs,
so it doesn't know that defs of %ecx that are immediately followed by
uses of %cl aren't dead. This comes up due to the way fast-isel emits
shift instructions.
This is a temporary workaround. Arguably, local regalloc should
handle subreg references correctly. On the other hand, perhaps
fast-isel should use INSERT_SUBREG instead of just assigning to the
most convenient super-register of %cl when lowering shifts.
This fixes MultiSource/Benchmarks/MallocBench/espresso,
MultiSource/Applications/hexxagon, and others, under -fast.
llvm-svn: 56947
2008-10-02 14:56:12 +00:00
b04e6edba9
"The original bug was a complaint that _mm_srli_si128 mis-compiled when passed
...
a constant vector ("{0x123, 0x456}" syntax). The fix is to simplify the
_mm_srli_si128 macro, and move the "* 8" from the macro into the compiler
back-end. I can't change the existing __builtins because so many people are
using them :-(."
Patch by Stuart Hastings!
llvm-svn: 56944
2008-10-02 05:56:52 +00:00
e52e6bfd29
Add llvm::sys::{osName,osVersion} for retrieving operating system name
...
& version as strings.
- Win32 code is untested.
llvm-svn: 56942
2008-10-02 01:17:28 +00:00
9cc9812653
Attributes noinline alwaysinline are incompatible
...
llvm-svn: 56939
2008-10-01 23:41:25 +00:00
1b76f2c40b
Remove OptimizeForSize global. Use function attribute optsize.
...
llvm-svn: 56937
2008-10-01 23:18:38 +00:00
3b88f10f46
Enable FastISel by default (on x86 and x86-64) with the -fast option.
...
llvm-svn: 56930
2008-10-01 20:39:19 +00:00
41a83d99e6
add a new form of Type::dump that takes a module for type names,
...
patch provided by Tomas Lindquist Olsen!
llvm-svn: 56929
2008-10-01 20:16:19 +00:00
1dd27578dd
Make some implicit conversions explicit, to avoid compiler warnings.
...
llvm-svn: 56927
2008-10-01 19:58:59 +00:00
6388dde98e
Split x86's ADJCALLSTACK instructions into 32-bit and 64-bit forms.
...
This allows the 64-bit forms to use+def RSP instead of ESP. This
doesn't fix any real bugs today, but it is more precise and it
makes the debug dumps on x86-64 look more consistent.
Also, add some comments describing the CALL instructions' physreg
operand uses and defs.
llvm-svn: 56925
2008-10-01 18:28:06 +00:00
3dc0a3bce3
Fix typo s/ther/there/
...
llvm-svn: 56924
2008-10-01 18:16:49 +00:00
d65a4daeea
Factorize code: remove variants of "strip off
...
pointer bitcasts and GEP's", and centralize the
logic in Value::getUnderlyingObject. The
difference with stripPointerCasts is that
stripPointerCasts only strips GEPs if all
indices are zero, while getUnderlyingObject
strips GEPs no matter what the indices are.
llvm-svn: 56922
2008-10-01 15:25:41 +00:00
94798d31dd
Fold trivial two-operand tokenfactors where the operands are equal
...
immediately.
llvm-svn: 56921
2008-10-01 15:11:19 +00:00
fbd67be50e
Don't prepend a space character for constants in Value::print.
...
llvm-svn: 56920
2008-10-01 15:09:37 +00:00
3a293e7404
Fix typos in comments.
...
llvm-svn: 56919
2008-10-01 15:07:49 +00:00
96740aad86
revert the addition of Preverves(CallGraph), per Duncan's comments
...
llvm-svn: 56917
2008-10-01 09:13:40 +00:00
bb3c5019f8
Mark CALL instructions as having a Use of ESP/RSP.
...
llvm-svn: 56911
2008-10-01 04:14:30 +00:00
67d90de2b0
Call ScalarEvolution's deleteValueFromRecords before deleting an
...
instruction, not after. This fixes some uses of free'd memory.
llvm-svn: 56908
2008-10-01 02:02:03 +00:00
68f12ee567
Implement the -fno-builtin option in the front-end, not in the back-end.
...
llvm-svn: 56900
2008-10-01 00:59:58 +00:00
15e6be8cc5
Mark merged-in VNInfo's as being PHIKilled.
...
llvm-svn: 56893
2008-09-30 23:58:47 +00:00
f4a36407c7
Fix a simple error in renumbering kill markaers, that took an inordinant amount of time to track down.
...
llvm-svn: 56889
2008-09-30 22:51:54 +00:00
1782584f56
Just don't transform this memset into "bzero" if no-builtin is specified.
...
llvm-svn: 56888
2008-09-30 22:05:33 +00:00
5093ab4c76
add preserversCFG() + preservers(CallGraph)
...
llvm-svn: 56887
2008-09-30 22:04:30 +00:00
e818bc159f
- Initialize "--no-builtin" to "false".
...
- Testcase for r56885.
llvm-svn: 56886
2008-09-30 21:40:30 +00:00
bd09262e97
Add the new `-no-builtin' flag. This flag is meant to mimic the GCC
...
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.
llvm-svn: 56885
2008-09-30 21:22:07 +00:00
b486350b15
Move the primary fast-isel top-level comments to FastISel.cpp, where
...
they'll be a little more visible. Also, update and reword them a bit.
llvm-svn: 56877
2008-09-30 20:48:29 +00:00
2bd7b24f1a
add AU.setPreservesCFG() since this pass only adds and removes function attributes
...
llvm-svn: 56868
2008-09-30 18:34:38 +00:00
86aa16a69a
Optimize SelectionDAG's AssignTopologicalOrder even further.
...
Completely eliminate the TopOrder std::vector. Instead, sort
the AllNodes list in place. This also eliminates the need to
call AllNodes.size(), a linear-time operation, before
performing the sort.
Also, eliminate the Sources temporary std::vector, since it
essentially duplicates the sorted result as it is being
built.
This also changes the direction of the topological sort
from bottom-up to top-down. The AllNodes list starts out in
roughly top-down order, so this reduces the amount of
reordering needed. Top-down is also more convenient for
Legalize, and ISel needed only minor adjustments.
llvm-svn: 56867
2008-09-30 18:30:35 +00:00
1a9a0b7b4e
Add runStaticConstructorsDestructors which runs ctors / dtors of a single module. Patch by David Chisnall.
...
llvm-svn: 56849
2008-09-30 15:51:21 +00:00
9156bd2f48
Re-apply 56835 along with header file changes.
...
llvm-svn: 56848
2008-09-30 15:44:16 +00:00
2b9adce1d0
Revert commit 56835 since it breaks the build.
...
"If a re-materializable instruction has a register
operand, the spiller will change the register operand's
spill weight to HUGE_VAL to avoid it being spilled.
However, if the operand is already in the queue ready
to be spilled, avoid re-materializing it".
llvm-svn: 56837
2008-09-30 10:00:30 +00:00
9469049f7d
If a re-materializable instruction has a register operand, the spiller will change the register operand's spill weight to HUGE_VAL to avoid it being spilled. However, if the operand is already in the queue ready to be spilled, avoid re-materializing it.
...
llvm-svn: 56835
2008-09-30 06:36:58 +00:00
e8ced3ec19
Fix misoptimization of: xor i1 (icmp eq (X, C1), icmp s[lg]t (X, C2))
...
llvm-svn: 56834
2008-09-30 06:08:34 +00:00
8392f0c75d
Fix X86FastISel's output for x86-32 PIC constant pool addresses.
...
llvm-svn: 56829
2008-09-30 01:21:32 +00:00
6ebe734ca6
Move the GlobalBaseReg field out of X86ISelDAGToDAG.cpp
...
and X86FastISel.cpp into X86MachineFunction.h, so that it
can be shared, instead of having each selector keep track
of its own.
llvm-svn: 56825
2008-09-30 00:58:23 +00:00
5033136825
Disable all x87 usage, including f32 and f64 when the subtarget
...
doesn't have SSE(2), with X86FastISel.
llvm-svn: 56823
2008-09-30 00:48:39 +00:00
f61a84ec43
Remove misuse of ReplaceNodeResults for atomics with
...
valid types. No functional change.
llvm-svn: 56808
2008-09-29 22:25:26 +00:00
4aa9095398
Fix FastISel to not initialize the PIC-base register multiple times
...
in functions with PIC references from more than one basic block.
llvm-svn: 56807
2008-09-29 21:55:50 +00:00
c02dbf451e
Fix an over-pessimization about GlobalVariable addresses in X86FastISel.
...
llvm-svn: 56802
2008-09-29 21:13:15 +00:00
221fe42006
Support inreg, zext and sext as return value attributes.
...
llvm-svn: 56801
2008-09-29 20:49:50 +00:00
82237f2f42
Fix PR2835. Do not change the width of a volatile load.
...
llvm-svn: 56792
2008-09-29 17:26:18 +00:00
57512a1be4
Speed up these passes when the callgraph has
...
huge simply connected components. Suggested
by Chris.
llvm-svn: 56787
2008-09-29 14:59:04 +00:00
ffc9da6772
remove redundant test (mayBeOverriden() includes hasLinkOnceLinkage)
...
llvm-svn: 56786
2008-09-29 14:40:32 +00:00
e340e18783
Tweak some comments.
...
llvm-svn: 56784
2008-09-29 13:35:31 +00:00
08d91178e9
Rename isWeakForLinker to mayBeOverridden. Use it
...
instead of hasWeakLinkage in a bunch of optimization
passes.
llvm-svn: 56782
2008-09-29 11:25:42 +00:00
3774b2f292
Re-apply 56683 with fixes.
...
llvm-svn: 56748
2008-09-27 01:56:22 +00:00
1d5e766016
Unbreak build.
...
llvm-svn: 56727
2008-09-27 00:22:09 +00:00
9eb525d4f9
Implement function notes as function attributes.
...
llvm-svn: 56716
2008-09-26 23:51:19 +00:00
c4b02eb4e5
Generated files for warning fix.
...
llvm-svn: 56715
2008-09-26 23:46:20 +00:00
e2ea91e7cb
Fix a compiler warning.
...
llvm-svn: 56714
2008-09-26 23:45:53 +00:00
7d6fa97567
Implement "punpckldq %xmm0, $xmm0" as "pshufd $0x50, %xmm0, %xmm" unless optimizing for code size.
...
llvm-svn: 56711
2008-09-26 23:41:32 +00:00
a05633e105
Now Attributes are divided in three groups
...
- return attributes - inreg, zext and sext
- parameter attributes
- function attributes - nounwind, readonly, readnone, noreturn
Return attributes use 0 as the index.
Function attributes use ~0U as the index.
This patch requires corresponding changes in llvm-gcc and clang.
llvm-svn: 56704
2008-09-26 22:53:05 +00:00
c966a737c5
Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc:
...
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2 -O2 -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter > for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...
llvm-svn: 56703
2008-09-26 22:10:44 +00:00
5628f642ad
Fix missing whitespace in the printing of function notes.
...
llvm-svn: 56702
2008-09-26 22:02:59 +00:00
6e0548336a
Rename ConstantSDNode's getSignExtended to getSExtValue, for
...
consistancy with ConstantInt, and re-implement it in terms
of ConstantInt's getSExtValue.
llvm-svn: 56700
2008-09-26 21:54:37 +00:00
7e922aa35d
Mark lea fi# as being really rematerializable.
...
llvm-svn: 56698
2008-09-26 21:30:20 +00:00
30f5494efb
unpckhps requires sse1, punpckhdq requires sse2.
...
llvm-svn: 56697
2008-09-26 21:26:30 +00:00
2564b900ce
Fix X86FastISel's address folding to check displacement
...
values for overflow.
llvm-svn: 56686
2008-09-26 20:04:15 +00:00
d77cbe8947
Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0.
...
llvm-svn: 56683
2008-09-26 19:48:35 +00:00
9e3f7dbeda
CMake: Builds all examples. Corrected name of CBackend target.
...
llvm-svn: 56682
2008-09-26 19:48:03 +00:00
c0f4d00d67
Generated files for previous patch.
...
llvm-svn: 56679
2008-09-26 19:32:34 +00:00
a7dd8bfaa5
Another file I forgot.
...
llvm-svn: 56678
2008-09-26 19:31:53 +00:00
0e32a2c935
Add "inreg" field to CallSDNode (doesn't increase
...
its size). Adjust various lowering functions to
pass this info through from CallInst. Use it to
implement sseregparm returns on X86. Remove
X86_ssecall calling convention.
llvm-svn: 56677
2008-09-26 19:31:26 +00:00
007a6bb9b9
Factor out the code for determining when symblic addresses
...
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.
llvm-svn: 56676
2008-09-26 19:15:30 +00:00
994dd0bbec
Avoid spilling EBP / RBP twice in the prologue.
...
llvm-svn: 56675
2008-09-26 19:14:21 +00:00
a381313d98
We don't need to insert copies for implicit_def's.
...
llvm-svn: 56674
2008-09-26 18:50:46 +00:00
001ffdd36b
X86 address displacement field must be interpreted as a 32-bit value.
...
llvm-svn: 56665
2008-09-26 16:58:16 +00:00
cdc95498f5
CMake: Builds all targets.
...
llvm-svn: 56641
2008-09-26 04:40:32 +00:00
839105d254
Disable support for x86_f80 in X86FastISel. Supporting it would
...
require more work.
llvm-svn: 56637
2008-09-26 01:39:32 +00:00
374d7f2b16
If we have a function with an unreachable statement such that the ending debug
...
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:
void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));
int *b;
void dead_beef(void) {
*b=0xdeadbeef;
abort();
}
has a call to "@llvm.dbg.region.end" only in the unreachable block:
define void @dead_beef() noreturn nounwind {
entry:
call void @llvm.dbg.func.start(...)
call void @llvm.dbg.stoppoint(...)
...
call void @abort( ) noreturn nounwind
unreachable
return: ; No predecessors!
call void @llvm.dbg.stoppoint(...)
call void @llvm.dbg.region.end(...)
ret void
}
The dwarf information emitted is something like:
0x00000084: TAG_subprogram [5]
AT_name( "dead_beef" )
AT_external( 0x01 )
AT_prototyped( 0x01 )
AT_decl_file( 0x01 )
AT_decl_line( 0x08 )
Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.
llvm-svn: 56628
2008-09-26 00:28:12 +00:00
9dbe45c000
Prefer movlhps over punpcklqdq, etc. in more cases.
...
llvm-svn: 56627
2008-09-25 23:35:16 +00:00
0c1b884df1
Fix a bug in which address displacements were being added to the
...
load from the stub, instead of the result of the load from the stub.
llvm-svn: 56626
2008-09-25 23:34:02 +00:00
0c37421623
Make pointer parameter const for isUsedInBasicBlock.
...
llvm-svn: 56625
2008-09-25 22:42:01 +00:00
4c758ea3e0
Large mechanical patch.
...
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g
This sets the stage
- to implement function notes as function attributes and
- to distinguish between function attributes and return value attributes.
This requires corresponding changes in llvm-gcc and clang.
llvm-svn: 56622
2008-09-25 21:00:45 +00:00
87001fd6fd
Reapply 56585:56589 with proper fix for some gcc versions
...
llvm-svn: 56621
2008-09-25 21:00:33 +00:00
74c9ed91b0
With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps
...
llvm-svn: 56620
2008-09-25 20:50:48 +00:00
c50ada2f56
Accept 'inreg' attribute on x86 functions as
...
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0). Update documentation
to reflect reality.
llvm-svn: 56619
2008-09-25 20:47:45 +00:00
bb9a211530
Avoid a spurious extra space character when printing empty structs.
...
llvm-svn: 56616
2008-09-25 17:37:20 +00:00
5e490a7567
Support for i1 XOR in FastISel. It is actually safe because
...
i1 operands are assumed to already by zero-extended.
llvm-svn: 56615
2008-09-25 17:22:52 +00:00
6975c36c43
Don't print fast-isel debug messages by default. Thanks Chris!
...
llvm-svn: 56614
2008-09-25 17:21:42 +00:00
dd920bf3f0
Don't forget the newline in debug output.
...
llvm-svn: 56613
2008-09-25 17:17:27 +00:00
32a733e2c7
FastISel support for debug info.
...
llvm-svn: 56610
2008-09-25 17:05:24 +00:00
4b35e64504
bug 2812: Segmentation fault on a big emdiam processor.
...
llvm-svn: 56609
2008-09-25 16:15:10 +00:00
3691d507c4
PIC support in X86FastISel.
...
llvm-svn: 56608
2008-09-25 15:24:26 +00:00
84301390ae
Temporarily backing out 56585:56589 to unbreak the build.
...
llvm-svn: 56607
2008-09-25 07:38:08 +00:00
3663f156f7
Fix a recent fast-isel coverage regression - don't bail out before
...
giving the target a chance to materialize constants.
llvm-svn: 56605
2008-09-25 01:28:51 +00:00
b8e69f1755
Enable DeadMachineInstructionElim when Fast-ISel is enabled.
...
llvm-svn: 56604
2008-09-25 01:14:49 +00:00
b873aa632c
Add debug output to this pass.
...
llvm-svn: 56602
2008-09-25 01:06:50 +00:00
7b5a6afb44
pmovsxbq etc. requires sse4.1.
...
llvm-svn: 56600
2008-09-25 00:49:51 +00:00
acb0554842
Refactor the code that adds standard LLVM codegen passes into
...
a separate function, eliminating duplication between the
add-passes-for-file and add-passes-for-machine-code code.
llvm-svn: 56599
2008-09-25 00:37:07 +00:00
2e7450716a
<rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!")
...
llvm-svn: 56597
2008-09-25 00:14:04 +00:00
382e2ec6b7
Give LowerSubregs.cpp a top-level description.
...
llvm-svn: 56596
2008-09-24 23:44:12 +00:00
f8ead16b50
Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD.
...
llvm-svn: 56594
2008-09-24 23:27:55 +00:00
4751549f9b
X86ISD::VZEXT_LOAD should produce and fold a chain.
...
llvm-svn: 56593
2008-09-24 23:26:36 +00:00
86d421df23
Remove SelectionDag early allocation of registers
...
for earlyclobbers. Teach Local RA about earlyclobber,
and add some tests for it.
llvm-svn: 56592
2008-09-24 23:13:09 +00:00
3097c10347
Minor cleanup
...
llvm-svn: 56588
2008-09-24 22:22:54 +00:00
a9163feefe
Get rid of virtual inheritance for ARM TAI
...
llvm-svn: 56587
2008-09-24 22:22:27 +00:00
237f087eb9
Get rid of virtual inheritance for PPC TAI
...
llvm-svn: 56586
2008-09-24 22:22:03 +00:00
77aa975bdd
Use crazy template-based inheritance instead of virtual one.
...
llvm-svn: 56585
2008-09-24 22:21:39 +00:00
fd7faecfc2
Use helper
...
llvm-svn: 56584
2008-09-24 22:21:04 +00:00
d19e91e5a8
SmallPtrSet will be better
...
llvm-svn: 56583
2008-09-24 22:20:46 +00:00
8e7b93938d
Get rid of ReadOnlySection duplicate
...
llvm-svn: 56582
2008-09-24 22:20:27 +00:00
91a6705839
Use named sections, where they should be
...
llvm-svn: 56581
2008-09-24 22:19:13 +00:00
5906234c1d
Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection
...
llvm-svn: 56580
2008-09-24 22:18:54 +00:00
123afb88c4
Use generic section-handling stuff to emit constant pool entries
...
llvm-svn: 56579
2008-09-24 22:17:59 +00:00
41573b2131
Cleanup
...
llvm-svn: 56578
2008-09-24 22:17:27 +00:00
22db30548d
Get rid of duplicate char*/Section* stuff for TLS sections
...
llvm-svn: 56577
2008-09-24 22:17:06 +00:00
1f365bbf55
Cleanup, no functionality change
...
llvm-svn: 56576
2008-09-24 22:16:33 +00:00
7497762606
Get rid of duplicate char*/Section* DataSection
...
llvm-svn: 56575
2008-09-24 22:16:16 +00:00
f8dc8aac3c
Get rid of duplicate char*/Section* TextSection
...
llvm-svn: 56574
2008-09-24 22:15:21 +00:00
076e905b94
Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic.
...
llvm-svn: 56573
2008-09-24 22:14:23 +00:00
69ff51baa0
Drop obsolete hook and change all usage to new interface
...
llvm-svn: 56572
2008-09-24 22:13:07 +00:00
7d002fa77b
Provide direct function to switch to Section
...
llvm-svn: 56571
2008-09-24 22:12:10 +00:00
8ac1127ed6
SPU section handling is really huge mess. Replace remaining TAI calls for sections with explicit names in order not to block existing backends during section handling migration. SPU folks! Please consider using new section handling facility someday.
...
llvm-svn: 56570
2008-09-24 22:11:42 +00:00
69721aa85c
Remove dead code for PIC16 (preparation to switch to new section handling stuff)
...
llvm-svn: 56569
2008-09-24 22:11:26 +00:00
ffecb087a3
XMM6-XMM15 are callee-saved on Win64. Patch by Nicolas Capens!
...
llvm-svn: 56568
2008-09-24 22:03:04 +00:00
4ef4b1a7c1
Fix off-by-one error when updating live intervals.
...
llvm-svn: 56567
2008-09-24 21:30:38 +00:00
cdc0060e27
Add DisableGVCompilation which forces the JIT to assert when it tries to allocate space for a GlobalVariable.
...
llvm-svn: 56557
2008-09-24 16:25:55 +00:00
dea91308ae
Reapplying r56550
...
llvm-svn: 56553
2008-09-24 10:25:02 +00:00
162c26dee3
Forgot this part with my last patch. Sorry about the breakage.
...
llvm-svn: 56552
2008-09-24 10:16:24 +00:00
4e26a81371
Temporarily revert r56550 until missing commit can be added.
...
llvm-svn: 56551
2008-09-24 08:30:44 +00:00
7c31464a0b
Refactor the constant folding code into it's own function. And call it from both
...
the SelectionDAG and DAGCombiner code. The only functionality change is that now
the DAG combiner is performing the constant folding for these operations instead
of being a no-op.
This is *not* in response to a bug, so there isn't a testcase.
llvm-svn: 56550
2008-09-24 07:11:26 +00:00
25dd4a2daf
Commit CodeGenPrepare.cpp changes which was accidentially left out of 56526.
...
llvm-svn: 56549
2008-09-24 06:48:55 +00:00
c1ea149dcd
Fix fallout in CodeGenPrepare from 56526. Will likely need more work.
...
llvm-svn: 56546
2008-09-24 05:32:41 +00:00
a867337344
Fix fallout from revision r56535.
...
llvm-svn: 56545
2008-09-24 04:55:49 +00:00
ace327af3e
CMake: Lists of source files updated. Removed bogus dependency from
...
lib/VMCore/CMakeLists.txt
llvm-svn: 56541
2008-09-24 01:58:12 +00:00
c36660d756
Next round of earlyclobber handling. Approach the
...
RA problem by expanding the live interval of an
earlyclobber def back one slot. Remove
overlap-earlyclobber throughout. Remove
earlyclobber bits and their handling from
live internals.
llvm-svn: 56539
2008-09-24 01:07:17 +00:00
6402c7236f
s/ParamAttrsWithIndex/FnAttributeWithIndex/g
...
llvm-svn: 56535
2008-09-24 00:55:02 +00:00
0009505a25
s/ParamAttributeListImpl/AttributeListImpl/g
...
llvm-svn: 56532
2008-09-24 00:29:49 +00:00
6b33aa4d96
Refactor the logic for testing if an instruction is dead into a
...
separate method.
llvm-svn: 56531
2008-09-24 00:27:38 +00:00
1e2b282be3
Set SetStore to false, to allow this pass to delete
...
dead loads.
llvm-svn: 56529
2008-09-24 00:07:08 +00:00
7c59ed6ff8
Add a method to MachineInstr for testing whether it makes
...
any volatile memory references.
llvm-svn: 56528
2008-09-24 00:06:15 +00:00
e15607b7bb
Put FN_NOTE_AlwaysInline and others in FnAttr namespace.
...
llvm-svn: 56527
2008-09-24 00:06:15 +00:00
e0add20c1b
Properly handle 'm' inline asm constraints. If a GV is being selected for the addressing mode, it requires the same logic for PIC relative addressing, etc.
...
llvm-svn: 56526
2008-09-24 00:05:32 +00:00
e87abd26ba
Move FN_NOTE_AlwaysInline and other out of ParamAttrs namespace.
...
Do not check isDeclaration() in hasNote(). It is clients' responsibility.
llvm-svn: 56524
2008-09-23 23:52:03 +00:00
f405b5e532
80 cols
...
llvm-svn: 56521
2008-09-23 23:32:15 +00:00
a987d3e3fb
s/ParameterAttributes/Attributes/g
...
llvm-svn: 56520
2008-09-23 23:25:44 +00:00
ba3fa6c6e1
s/ParameterAttributes/Attributes/g
...
llvm-svn: 56513
2008-09-23 23:03:40 +00:00
82fed6702b
Use parameter attribute store (soon to be renamed) for
...
Function Notes also. Function notes are stored at index ~0.
llvm-svn: 56511
2008-09-23 22:35:17 +00:00
676145f02d
Now that DeadMachineInstructionElim is basically working
...
correctly, it's not necessary to explicitly remove registers
from their use-def lists.
llvm-svn: 56509
2008-09-23 22:04:18 +00:00
918fe08a56
Arrange for FastISel code to have access to the MachineModuleInfo
...
object. This will be needed to support debug info.
llvm-svn: 56508
2008-09-23 21:53:34 +00:00
269999cb03
Track local physical register liveness. This is not the most
...
efficient implementation possible, but it's pretty simple and
good enough for the time being.
llvm-svn: 56504
2008-09-23 21:40:44 +00:00
4f6646780e
regenerate
...
llvm-svn: 56502
2008-09-23 21:18:31 +00:00
7f0a77f11d
allow inreg on the result of a function
...
llvm-svn: 56501
2008-09-23 21:18:08 +00:00
c07f686665
Replace the LiveRegs SmallSet with a simple counter that keeps
...
track of the number of live registers, which is all the set was
being used for.
llvm-svn: 56498
2008-09-23 18:50:48 +00:00
ed1cf1a8f1
Fix these enums' starting values to reflect the way that
...
instruction opcodes are now numbered. No functionality change.
llvm-svn: 56497
2008-09-23 18:42:32 +00:00
e64c9944f6
Delete an unused function.
...
llvm-svn: 56495
2008-09-23 18:26:47 +00:00
2430073657
Move the code for initializing the global base reg out of
...
X86ISelDAGToDAG.cpp and into X86InstrInfo.cpp. This will allow
it to be reused by FastISel.
llvm-svn: 56494
2008-09-23 18:22:58 +00:00
9c40c28926
Rationalize the names of passes that print information:
...
-callgraph => print-callgraph
-callscc => print-callgraph-sccs
-cfgscc => print-cfg-sccs
-externalfnconstants => print-externalfnconstants
-print => print-function
-print-alias-sets (no change)
-print-callgraph => dot-callgraph
-print-cfg => dot-cfg
-print-cfg-only => dot-cfg-only
-print-dom-info (no change)
-printm => print-module
-printusedtypes => print-used-types
llvm-svn: 56487
2008-09-23 12:47:39 +00:00
bdb215d338
Fix indendation.
...
llvm-svn: 56486
2008-09-23 08:54:41 +00:00
4cdc18ad80
Add initial support for inserting last minute copies.
...
llvm-svn: 56485
2008-09-23 04:37:10 +00:00
9e9426cb82
Support x86 specific inline asm modifier 'J'.
...
llvm-svn: 56483
2008-09-22 23:57:37 +00:00
e2947e1e07
Fix the alignment of loads from constant pool entries when the
...
load address has an offset from the base of the constant pool
entry.
llvm-svn: 56479
2008-09-22 22:40:08 +00:00
329fe728b5
Add hasNote() to check note associated with a function.
...
llvm-svn: 56477
2008-09-22 22:32:29 +00:00
bab5988017
Livestacks really does preserve everything.
...
llvm-svn: 56476
2008-09-22 22:26:15 +00:00
962c2cf17a
Instead of setPreservesAll, just mark them preseving machine loop info and machine dominators.
...
llvm-svn: 56475
2008-09-22 22:21:38 +00:00
97364655dc
Significant improvements to the logic for merging live intervals. This code can't
...
just use LI::MergeValueAsValue, as its behavior in the presence of overlapping ranges
isn't what StrongPHIElimination wants.
llvm-svn: 56472
2008-09-22 21:58:58 +00:00
7a74e71489
Make log, log2, log10, exp, exp2 use Expand by
...
default.
llvm-svn: 56471
2008-09-22 21:57:32 +00:00
168f8f3916
Mark several codegen passes as preserving all analysis.
...
llvm-svn: 56469
2008-09-22 20:58:04 +00:00
f1acc4d610
More refactoring. Yawn.
...
llvm-svn: 56468
2008-09-22 20:51:30 +00:00
7beddb8680
Refactor FP intrinisic setup. Per review feedback.
...
llvm-svn: 56456
2008-09-22 19:51:58 +00:00
8807bddf08
CMake build system: support for parallel builds.
...
llvm-svn: 56453
2008-09-22 18:21:51 +00:00
13beeeb128
Per review feedback: Only perform
...
(srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), c))
etc. when both "trunc" and "and" have single uses.
llvm-svn: 56452
2008-09-22 18:19:24 +00:00
796a271c5f
Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.
...
llvm-svn: 56436
2008-09-22 14:50:07 +00:00
a229b3c9a7
Initial support for the CMake build system.
...
llvm-svn: 56419
2008-09-22 01:08:49 +00:00
91ef8fcd29
Add helper function to get a 32-bit floating point constant. No functionality change.
...
llvm-svn: 56418
2008-09-22 00:44:35 +00:00
f1280cf744
Fold immediates into X86 shifts with fast isel. This generates:
...
sarl $3, %ecx
instead of:
movl $3, %ecx
sarl %cl, %edx
This shrinks fast isel 176.gcc by about 2000 instructions (.3%)
llvm-svn: 56413
2008-09-21 21:44:29 +00:00
ae9d9f4d3f
Factor out code into HandleVirtRegDef, for consistency with
...
Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check
for register zero, and redundant checks for isPhysicalRegister.
llvm-svn: 56412
2008-09-21 21:11:41 +00:00
dfc19e6c01
Instead of building a list and sorting it just to find a maximum element,
...
compute the maximum element directly.
llvm-svn: 56411
2008-09-21 21:01:49 +00:00
df8f1cb995
Fetch the starting index of the block when assigning intervals. This gets live-in indices
...
correct in the presence of things like EH labels.
llvm-svn: 56410
2008-09-21 20:43:24 +00:00
43f5449c48
don't print GlobalAddressSDNode's with an offset of zero as "foo0".
...
llvm-svn: 56399
2008-09-21 18:38:31 +00:00
9a8eb0d534
add a note
...
llvm-svn: 56391
2008-09-20 19:17:53 +00:00
e1dc84be64
Implement review feedback from Devang: make use
...
of mayReadFromMemory and mayWriteToMemory.
llvm-svn: 56387
2008-09-20 16:45:58 +00:00
9af7b3daec
Teach coalescer about earlyclobber bits.
...
Check bits for preferred register.
llvm-svn: 56384
2008-09-20 02:03:04 +00:00
c042000649
Fix PR2808. When regalloc runs out of register, it spill a physical register around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on.
...
llvm-svn: 56381
2008-09-20 01:28:05 +00:00
4730522235
No need to print function stubs for Mac OS X 10.5 and up. Linker will handle it.
...
llvm-svn: 56378
2008-09-20 00:13:45 +00:00
9d917beba6
80 column violation.
...
llvm-svn: 56377
2008-09-20 00:13:08 +00:00
098786e9f7
Fix a FastISel GlobalVariable CSE bug.
...
llvm-svn: 56376
2008-09-19 23:42:04 +00:00
29e4c9192d
Continue after removing the current MI.
...
llvm-svn: 56372
2008-09-19 22:49:39 +00:00
9801ba451a
Refactor X86SelectConstAddr, folding it into X86SelectAddress. This
...
results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.
llvm-svn: 56371
2008-09-19 22:16:54 +00:00
436aae627d
Make earlyclobber stuff work when virtual regs
...
have previously been assigned conflicting physreg.
llvm-svn: 56364
2008-09-19 18:52:31 +00:00
4c0197043c
Re-materalized definition instructions may be dead. Whack them.
...
llvm-svn: 56352
2008-09-19 17:38:47 +00:00
715b9d2403
backing out my last commit, it was not intended to go on the trunk
...
llvm-svn: 56349
2008-09-19 15:13:20 +00:00
92f17070e7
first shot at removing Use::Val
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untested, Use::swap() is definitely not done yet
llvm-svn: 56348
2008-09-19 15:03:57 +00:00
310077034a
Remove the MarkModRef pass (use AddReadAttrs instead).
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Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.
llvm-svn: 56342
2008-09-19 08:23:44 +00:00
af25ee7ffc
Add a new pass AddReadAttrs which works out which functions
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can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.
llvm-svn: 56341
2008-09-19 08:17:05 +00:00
e519bd4183
Remove AsmThatEarlyClobber etc. from LiveIntervalAnalysis
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and redo as linked list walk. Logic moved into RA.
Per review feedback.
llvm-svn: 56326
2008-09-19 01:02:35 +00:00
c25be3b2de
splitLoop does not handle split condition EQ.
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Fixes PR 2805
llvm-svn: 56321
2008-09-18 23:45:14 +00:00
6e005fdc8d
Address-mode folding for X86FastISel. It's pretty basic, but it
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catches a fair number of common cases. Note that this currently
causes Fast-ISel to leave behind lots of dead instructions.
Those will be dealt with in subsequent commits.
llvm-svn: 56320
2008-09-18 23:23:44 +00:00
a00fa322b1
Decrementing the iterator here could be wrong if the worklist is empty after the "erase".
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Thanks to Ji Young Park for the patch!
llvm-svn: 56316
2008-09-18 23:04:18 +00:00
76b22c1420
Try to place hoisted instructions befoe icmp instruction.
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llvm-svn: 56315
2008-09-18 22:50:42 +00:00
3d9416cf24
Somehow RegAllocLinearScan is keeping two pointers to MachineRegisterInfo.
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llvm-svn: 56314
2008-09-18 22:38:47 +00:00
e91edeb61c
Simplify this code. The FastISel class has its own TD member.
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llvm-svn: 56311
2008-09-18 18:26:43 +00:00
f3d647e00b
Don't consider instructions with implicit physical register
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defs to be necessarily live.
llvm-svn: 56310
2008-09-18 18:22:32 +00:00
95be7d7b85
Add a new "fast" scheduler. This is currently basically just a
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copy of the BURRList scheduler, but with several parts ripped
out, such as backtracking, online topological sort maintenance
(needed by backtracking), the priority queue, and Sethi-Ullman
number computation and maintenance (needed by the priority
queue). As a result of all this, it generates somewhat lower
quality code, but that's its tradeoff for running about 30%
faster than list-burr in -fast mode in many cases.
This is somewhat experimental. Moving forward, major pieces of
this can be refactored with pieces in common with
ScheduleDAGRRList.cpp.
llvm-svn: 56307
2008-09-18 16:26:26 +00:00
5cc53c34c3
Preliminary support for systems which require changing JIT memory regions privilege from read / write to read / executable.
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llvm-svn: 56303
2008-09-18 07:54:21 +00:00
Matthijs Kooijman