9c27f96d04
fix two issues Neil noticed, thanks!
...
llvm-svn: 51296
2008-05-20 03:50:52 +00:00
f479856957
Add a bool to isEdgeFeasible that tells it whether to treat unknown
...
value as undef or untracked.
llvm-svn: 51295
2008-05-20 03:39:39 +00:00
69ddfbfe9e
Fix ExecutionEngine's constant code to work properly when structs and arrays
...
will become first-class types.
llvm-svn: 51293
2008-05-20 03:20:09 +00:00
e5572706e8
Refine the fix in r51169 to only apply when the operand val being
...
replaced is a PHI. This prevents it from inserting uses before defs
in the case that it isn't a PHI and it depends on other instructions
later in the block. This fixes the 447.dealII regression on x86-64.
llvm-svn: 51292
2008-05-20 03:01:48 +00:00
974722b16f
runOnMachineFunction should set IsPIC because relocation model may have been changed.
...
llvm-svn: 51291
2008-05-20 01:56:59 +00:00
d717761a2b
Make AssociativeOpt static.
...
llvm-svn: 51290
2008-05-20 01:14:05 +00:00
ee7bf41c06
Do not erase induction variable increment if it is used outside the loop.
...
llvm-svn: 51280
2008-05-19 22:23:55 +00:00
123438cc05
Add a ComputeNumSignBits function for use by instcombine, based on the
...
code in SelectionDAG.
llvm-svn: 51279
2008-05-19 22:14:15 +00:00
5bf742f2aa
Handle quoted names when constructing $stub's,
...
$non_lazy_ptr's and $lazy_ptr's.
llvm-svn: 51277
2008-05-19 21:38:18 +00:00
b42712288e
switch to Type::getFPMantissaWidth instead of reinventing it.
...
llvm-svn: 51275
2008-05-19 21:17:23 +00:00
ba9acbe6dc
minor cleanups, teach instcombine that sitofp/uitofp cannot
...
produce a negative zero.
llvm-svn: 51272
2008-05-19 20:27:56 +00:00
e35fe0f1c6
convert fptosi(sitofp x) -> x if the fp value has enough bits in its mantissa
...
to accurately represent the integer. This triggers 9 times in 471.omnetpp,
though 8 of those seem to be inlined from the same place.
llvm-svn: 51271
2008-05-19 20:25:04 +00:00
5920a78034
Fold FP comparisons where one operand is converted from an integer
...
type and the other operand is a constant into integer comparisons.
This happens surprisingly frequently (e.g. 10 times in 471.omnetpp),
which are things like this:
%tmp8283 = sitofp i32 %tmp82 to double
%tmp1013 = fcmp ult double %tmp8283, 0.0
Clearly comparing tmp82 against i32 0 is cheaper here.
this also triggers 8 times in gobmk, including this one:
%tmp375376 = sitofp i32 %tmp375 to double
%tmp377 = fcmp ogt double %tmp375376, 8.150000e+01
which is comparing an integer against 81.5 :).
llvm-svn: 51268
2008-05-19 20:18:56 +00:00
6e70830af9
remove debug output
...
llvm-svn: 51264
2008-05-19 20:03:53 +00:00
fc365b60dc
be more aggressive about transforming add -> or when the operands have no
...
intersecting bits. This triggers all over the place, for example in lencode,
with adds of stuff like:
%tmp580 = mul i32 %tmp579, 2
%tmp582 = and i32 %b8, 1
and
%tmp28 = shl i32 %abs.i, 1
%sign.0 = select i1 %tmp23, i32 1, i32 0
and
%tmp344 = shl i32 %tmp343, 2
%tmp346 = and i32 %tmp96, 3
etc.
llvm-svn: 51263
2008-05-19 20:01:56 +00:00
eec7a3c071
Fix PR2341 - when the length is 4 use an i32 not
...
an i16! Cleaned up trailing whitespace while there.
llvm-svn: 51240
2008-05-19 09:27:24 +00:00
8bd151d194
Reverting accidental commit of generated files.
...
llvm-svn: 51239
2008-05-19 05:57:12 +00:00
00889ccfca
Remove a duplicative binding. Patch by Mahadevan R.
...
llvm-svn: 51238
2008-05-19 05:47:10 +00:00
65720c968c
Teach GVN to not assert on vector comparisons
...
llvm-svn: 51230
2008-05-18 19:49:05 +00:00
7af15f17b5
Fix a backwards check in the JIT symbol table code
...
llvm-svn: 51229
2008-05-18 19:09:10 +00:00
4b2a724fb8
Fix PR2339
...
llvm-svn: 51226
2008-05-18 04:11:26 +00:00
eb185ca5e9
Revert constant-folding change that will miscompile in some cases.
...
llvm-svn: 51223
2008-05-17 19:00:05 +00:00
1bafa6c886
trip count computation deficiency
...
llvm-svn: 51222
2008-05-17 15:37:38 +00:00
79d681dddd
Unbreak the build.
...
llvm-svn: 51217
2008-05-17 09:05:22 +00:00
1ba90bb69b
Constant fold inttoptr and ptrtoint.
...
llvm-svn: 51216
2008-05-17 09:03:26 +00:00
79376f4e02
Move isTrueWhenEqual to ICmpInst.
...
llvm-svn: 51215
2008-05-17 07:33:39 +00:00
5610dabac9
Less conservative verison of previous patch,
...
suggested by Duncan.
llvm-svn: 51211
2008-05-16 23:18:52 +00:00
e7f5bc2c3b
Weak functions not declared non-throwing might be
...
replaced at linktime with a body that throws, even
if the body in this file does not. Make PruneEH
be more conservative in this case.
g++.dg/eh/weak1.C
llvm-svn: 51207
2008-05-16 21:31:48 +00:00
901b1a75c9
Add functions to enable adding a single attribute to a function and
...
its associated call site.
llvm-svn: 51204
2008-05-16 20:39:43 +00:00
2e1d5e487b
Record weak external linkage in a case where we were
...
missing it. gcc.dg/darwin-weakimport-2.c.
Handle common and weak differently for darwin ppc32.
llvm-svn: 51201
2008-05-16 20:09:25 +00:00
e1f6e4b21d
API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.)
...
llvm-svn: 51200
2008-05-16 19:29:10 +00:00
9ac3631fa3
If the result of a BIT_CONVERT is a v1* vector, it doesn't mean its source is a v1* vector.
...
llvm-svn: 51192
2008-05-16 17:19:05 +00:00
67933e6692
Bill pointed out that system headers should be
...
included after local headers.
llvm-svn: 51187
2008-05-16 09:30:00 +00:00
70424d195a
Silence the compiler warning differently. The
...
original method caused gcc-4.2 to complain.
llvm-svn: 51186
2008-05-16 09:19:16 +00:00
173a53f87c
Do not dup malloc, vector instructions, etc. Throttle the default theshold way down.
...
llvm-svn: 51183
2008-05-16 07:55:50 +00:00
c7d6eceb69
Remove ADCE's ability to delete loops. This ability is now implemented in a
...
safer manner by loop deletion.
llvm-svn: 51182
2008-05-16 04:34:51 +00:00
ad5f211b48
Clean ups for loop deletion based on Chris' feedback.
...
Also, use SCEV to determine the trip count of the loop, which is more powerful
and accurate that Loop::getTripCount.
llvm-svn: 51179
2008-05-16 04:32:45 +00:00
5c953b7d27
implement PR2328.
...
llvm-svn: 51176
2008-05-16 02:59:42 +00:00
876dd3ca9e
Treat common as distinct from weak global on Darwin x86.
...
llvm-svn: 51172
2008-05-16 00:52:06 +00:00
2f156ae850
Revert the change from r51157 in
...
test/Verifier/2002-11-05-GetelementptrPointers.ll, which was incorrect.
Instead, fix getIndexedType to not follow pointer types, as
PointerType is a subclass of CompositeType.
llvm-svn: 51171
2008-05-16 00:16:32 +00:00
0a0fa7cf78
Fix a bug in LoopStrengthReduce that caused it to emit IR with
...
use-before-def. The problem comes up in code with multiple PHIs where
one PHI is being rewritten in terms of the other, but the other needs
to be casted first. LLVM rules requre the cast instruction to be
inserted after any PHI instructions, but when instructions were
inserted to replace the second PHI value with a function of the first,
they were ended up going before the cast instruction. Avoid this
problem by remembering the location of the cast instruction, when one
is needed, and inserting the expansion of the new value after it.
This fixes a bug that surfaced in 255.vortex on x86-64 when
instcombine was removed from the middle of the loop optimization
passes.
llvm-svn: 51169
2008-05-15 23:26:57 +00:00
29e59ad6c9
Fix typos and comments.
...
llvm-svn: 51165
2008-05-15 22:13:02 +00:00
6ef726a066
Allow an extra bit for CommonLinkage.
...
This changes the .bc file format, but if I understand
how it works correctly, old .bc files continue to
be readable.
llvm-svn: 51161
2008-05-15 20:49:28 +00:00
f79f52282c
Actually scalarize the operand to BIT_CONVERT instead of asking someone to do
...
something with a v1 type.
llvm-svn: 51160
2008-05-15 20:40:58 +00:00
12fce7751b
IR support for extractvalue and insertvalue instructions. Also, begin
...
moving toward making structs and arrays first-class types.
llvm-svn: 51157
2008-05-15 19:50:34 +00:00
f52c8044ea
Use static and anonymous namespaces consistently with other passes.
...
llvm-svn: 51156
2008-05-15 19:43:55 +00:00
61724355af
Remove useless check.
...
Patch by Matthijs Kooijman.
llvm-svn: 51154
2008-05-15 18:04:29 +00:00
d37a6cf669
Disable JIT symbol table for now.
...
llvm-svn: 51152
2008-05-15 17:31:35 +00:00
783cb2d76d
Use of UINT_MAX requires climits, at least when
...
compiling with gcc 4.3.
llvm-svn: 51145
2008-05-15 11:22:50 +00:00
697e94cc22
Fix a bunch of 80col violations that arose from the Create API change. Tweak makefile targets to find these better.
...
llvm-svn: 51143
2008-05-15 10:04:30 +00:00
ef377adca0
Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these.
...
llvm-svn: 51140
2008-05-15 08:39:06 +00:00
60f9320fc5
Move the operator new and operator delete out of line. This fixes an issue with
...
operator new() referring to the static initTags function, which has to be in the
same linkage unit as any file including User.h.
llvm-svn: 51136
2008-05-15 01:23:11 +00:00
fa48372a24
Don't assume underlying APInt type is limited
...
to 64 bits.
llvm-svn: 51135
2008-05-14 22:53:25 +00:00
3716952f10
Situations can arise when you have a function called that returns a 'void', but
...
is bitcast to return a floating point value. The result of the instruction may
not be used by the program afterwards, and LLVM will happily remove all
instructions except the call. But, on some platforms, if a value is returned as
a floating point, it may need to be removed from the stack (like x87). Thus, we
can't get rid of the bitcast even if there isn't a use of the value.
llvm-svn: 51134
2008-05-14 22:45:20 +00:00
8d76cdb144
Remove undefined behavior in hex string->APFloat
...
conversion. Try 0x1.0000a4p+0f. Neil, please review.
llvm-svn: 51132
2008-05-14 22:05:31 +00:00
4ea9d49590
Use a better idiom to silence compiler warnings.
...
llvm-svn: 51131
2008-05-14 21:08:07 +00:00
e15051d64b
rename SimplifyCFG.cpp -> SimplifyCFGPass.cpp
...
llvm-svn: 51130
2008-05-14 20:38:44 +00:00
ad2b7a7b97
Silence warnings.
...
llvm-svn: 51129
2008-05-14 20:33:21 +00:00
0f7fb95e79
Really silence compiler warnings.
...
llvm-svn: 51126
2008-05-14 20:29:30 +00:00
a5b0a8d7fe
Really silence compiler warnings.
...
llvm-svn: 51123
2008-05-14 20:26:35 +00:00
21160df793
CommonLinkage (missed a file)
...
llvm-svn: 51120
2008-05-14 20:14:09 +00:00
5c1b6db9ed
Generated files for CommonLinkage.
...
llvm-svn: 51119
2008-05-14 20:13:36 +00:00
ce4396bc92
Add CommonLinkage; currently tentative definitions
...
are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both. The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.
llvm-svn: 51118
2008-05-14 20:12:51 +00:00
763ec13862
Silence some compiler warnings.
...
llvm-svn: 51115
2008-05-14 20:07:51 +00:00
f2763e233e
Simplify internalize pass. Add test case.
...
Patch by Matthijs Kooijman!
llvm-svn: 51114
2008-05-14 20:01:01 +00:00
3ab94df276
When bit-twiddling CondCode values for integer comparisons produces
...
SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.
llvm-svn: 51112
2008-05-14 18:17:09 +00:00
7fc6027873
Detabification. Fixed indentation and spacing.
...
Changed cout to DOUT, and TODOs to FIXMEs.
Other changes as per coding conventions.
llvm-svn: 51105
2008-05-14 11:31:39 +00:00
fbdca96469
Fix typo in ParameterAttribute fields usage. Add an include
...
to make the Cpp backend output compilable.
llvm-svn: 51095
2008-05-14 07:52:03 +00:00
1f8c9ef4cc
Fixed the file description header at the top to remove the developer name.
...
llvm-svn: 51094
2008-05-14 06:50:01 +00:00
6f34ed0d36
Doh. Alignment is in bytes, not in bits.
...
llvm-svn: 51092
2008-05-14 02:49:43 +00:00
eabd647cd5
Change target-specific classes to use more precise static types.
...
This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.
llvm-svn: 51091
2008-05-14 01:58:56 +00:00
fd3e3003f3
Whitespace cleanups.
...
llvm-svn: 51089
2008-05-14 00:43:10 +00:00
4e974ab933
Make PreVerifyID, IntSigsEnd, and KillSigsEnd const.
...
llvm-svn: 51088
2008-05-14 00:42:30 +00:00
3dc2d92ebd
Split the loop unroll mechanism logic out into a utility function.
...
Patch by Matthijs Kooijman!
llvm-svn: 51083
2008-05-14 00:24:14 +00:00
17816b321f
Fix Analysis/BasicAA/pure-const-dce.ll. This turned out to be a correctness
...
bug as well as a missed optimization. We weren't properly checking for local
dependencies before moving on to non-local ones when doing non-local read-only
call CSE.
llvm-svn: 51082
2008-05-13 23:18:30 +00:00
5ef7404dc7
Merge of r51073-51074 from use-diet branch.
...
Do not rely on std::swap<Use>, provide a (faster) member function instead.
This change is primarily necessitated by MSVC++'s incompatibility with
declaring std::swap<Use> to be a friend of Use.
Also contains some minor tweaks to Use inline functions,
to undo pointless changes that sneaked in with the last merge.
llvm-svn: 51078
2008-05-13 22:51:52 +00:00
a9fcf009a3
Dominance Frontier is cfg only pass.
...
llvm-svn: 51075
2008-05-13 22:43:21 +00:00
3ab976a21f
Fix memdep's handling of invokes when finding the dependency of another call
...
instruction. This fixes some Ada miscompiles reported in PR2324.
llvm-svn: 51069
2008-05-13 21:25:37 +00:00
e695ab227c
Fix for PR 2323, infinite loop in tail dup.
...
llvm-svn: 51063
2008-05-13 20:06:43 +00:00
03ce206143
add a note
...
llvm-svn: 51062
2008-05-13 19:56:20 +00:00
f8ab712fa9
- Fix the pasto in the fix for a previous pasto.
...
- Incorporate Chris' comment suggestion.
llvm-svn: 51061
2008-05-13 18:59:59 +00:00
d17f58ae6e
add a note
...
llvm-svn: 51060
2008-05-13 18:48:54 +00:00
6645714f16
Fix one more encoding bug.
...
llvm-svn: 51057
2008-05-13 17:52:09 +00:00
595e226085
- Don't treat anyext 16-bit load as a 32-bit load if it's volatile.
...
- Correct a pasto.
llvm-svn: 51054
2008-05-13 16:45:56 +00:00
8c2391d00d
Make the non-local CSE safety checks slightly more thorough.
...
llvm-svn: 51035
2008-05-13 13:41:23 +00:00
4394c2376c
Adding files for Microchip's PIC16 target.
...
A brief description about PIC16:
===============================
PIC16 is an 8-bit microcontroller with only one 8-bit register which is the
accumulator. All arithmetic/load/store operations are 8-bit only.
The architecture has two address spaces: program and data. The program memory
is divided into 2K pages and the data memory is divided into banks of 128 byte, with only 80 usable bytes, resulting in an non-contiguous data memory.
It supports direct data memory access (by specifying the address as part of the instruction) and indirect data and program memory access (in an unorthodox fashion which utilize a 16 bit pointer register).
Two classes of registers exist: (8-bit class which is only one
accumulator) (16-bit class, which contains one or more 16 bit
pointer(s))
llvm-svn: 51027
2008-05-13 09:02:57 +00:00
1120279ae6
Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
...
pshufd $1, (%rdi), %xmm0
movd %xmm0, %eax
=>
movl 4(%rdi), %eax
llvm-svn: 51026
2008-05-13 08:35:03 +00:00
69057b80c7
Add support for non-local CSE of read-only calls.
...
llvm-svn: 51024
2008-05-13 08:17:22 +00:00
0d42adf65b
Derive GetResultInst from UnaryInstruction, this simplifies code and removes a FIXME.
...
llvm-svn: 51023
2008-05-13 07:09:08 +00:00
0479aa5c0b
Change class' public PassInfo variables to by initialized with the
...
address of the PassInfo directly instead of calling getPassInfo.
This eliminates a bunch of dynamic initializations of static data.
Also, fold RegisterPassBase into PassInfo, make a bunch of its
data members const, and rearrange some code to initialize data
members in constructors instead of using setter member functions.
llvm-svn: 51022
2008-05-13 02:05:11 +00:00
53c5c62d6d
80 col / tabs fixes
...
llvm-svn: 51021
2008-05-13 01:48:26 +00:00
50f7ef30bb
Fix and encoding error in the psrad xmm, imm8 instruction.
...
llvm-svn: 51020
2008-05-13 01:47:52 +00:00
3f40c69083
On x86, it's safe to treat i32 load anyext as a normal i32 load. Ditto for i8 anyext load to i16.
...
llvm-svn: 51019
2008-05-13 00:54:02 +00:00
d78c400b5b
Clean up the use of static and anonymous namespaces. This turned up
...
several things that were neither in an anonymous namespace nor static
but not intended to be global.
llvm-svn: 51017
2008-05-13 00:00:25 +00:00
b87e63a730
Teach Legalize how to scalarize VSETCC
...
Teach X86 a few more vsetcc patterns. Custom lowering for unsupported ones is next.
llvm-svn: 51009
2008-05-12 23:09:43 +00:00
b980f6fb3d
Xform bitconvert(build_pair(load a, load b)) to a single load if the load locations are at the right offset from each other.
...
llvm-svn: 51008
2008-05-12 23:04:07 +00:00
9d29283fc7
Be more aggressive about tail-merging small blocks
...
if those blocks consist entirely of common instructions;
merging will not add an extra branch in this case.
llvm-svn: 51006
2008-05-12 22:53:12 +00:00
6b8bd513d4
Constify isSourceDefinedByImplicitDef function. Otherwise, just formatting
...
changes that don't change functionality.
llvm-svn: 51004
2008-05-12 22:15:05 +00:00
1e11768a4f
Constify the machine instruction passed into the
...
"is{Trivially,Really}ReMaterializable" methods.
llvm-svn: 51001
2008-05-12 20:54:26 +00:00
d875c3e2fd
Initial X86 codegen support for VSETCC.
...
llvm-svn: 51000
2008-05-12 20:34:32 +00:00
c4c4d8e1f7
Further rework of tail merge algorithm. Not quite
...
semantically identical, but little difference in
either results or execution speed; but it's much
easier to read, at least IMO.
llvm-svn: 50999
2008-05-12 20:33:57 +00:00
68586bddb1
Simplify some checks
...
llvm-svn: 50998
2008-05-12 20:33:52 +00:00
0863b19ae6
Fix a copy+paste bug; pseudo-instructions shouldn't have
...
encoding information.
llvm-svn: 50997
2008-05-12 20:22:45 +00:00
17c5434a16
Pointer comparisons should use icmp, not vicmp
...
llvm-svn: 50996
2008-05-12 20:16:55 +00:00
f792860255
Go back to passing the analyses around as parameters.
...
llvm-svn: 50995
2008-05-12 20:15:55 +00:00
66d0a0e8f4
Pointer comparisons should be handled by icmp, not vicmp :)
...
llvm-svn: 50994
2008-05-12 20:11:05 +00:00
1196287522
Hard code CmpInst back to i1 for now while I go track down what in the bitcode reader/writer is assuming i1
...
This was breaking a bunch of tests
llvm-svn: 50992
2008-05-12 20:01:56 +00:00
2609d5e779
Refactor isConsecutiveLoad from X86 to TargetLowering so DAG combiner can make use of it.
...
llvm-svn: 50991
2008-05-12 19:56:52 +00:00
2930845065
Revert the previous commit. Go ahead and hoist rematerializable instructions.
...
llvm-svn: 50990
2008-05-12 19:47:18 +00:00
cfcb56091b
Add support for vicmp/vfcmp codegen, more legalize support coming.
...
This is necessary to unbreak the build.
llvm-svn: 50988
2008-05-12 19:40:03 +00:00
70613b84da
One real change - don't hoist something that's trivially rematerializable. It's
...
possible for it to produce worse code than before.
The rest of this patch is code cleanup.
llvm-svn: 50987
2008-05-12 19:38:32 +00:00
ac7f3d99dd
Fix build breakage
...
llvm-svn: 50986
2008-05-12 19:23:22 +00:00
d21957002a
Add two new instructions to the llvm IR, vicmp and vfcmp. see updated LangRef
...
for details. CodeGen support coming in a follow up patch
llvm-svn: 50985
2008-05-12 19:01:56 +00:00
02e5933fa3
Make firstEightPowers const.
...
llvm-svn: 50975
2008-05-12 16:38:14 +00:00
e9bc2ba256
Update comments.
...
llvm-svn: 50974
2008-05-12 16:34:30 +00:00
906716c40f
Fix a compile error on compilers that still want a return value
...
in a non-void function that calls abort.
llvm-svn: 50969
2008-05-12 16:17:19 +00:00
ecb77385ab
Fix a missing break in the ISD::FLT_ROUNDS_ handling. Patch by giuma!
...
llvm-svn: 50967
2008-05-12 16:07:15 +00:00
4afb1c864a
Move the various analyses used by GVN into static variables so we don't have to keep passing them around or refetching them.
...
llvm-svn: 50963
2008-05-12 08:15:27 +00:00
9fdb814a56
prune #includes.
...
llvm-svn: 50962
2008-05-12 01:13:53 +00:00
5287765d1a
Add a new SparsePropagation analysis utility, which allows you to do
...
SCCP like sparse lattice analysis with relative ease. Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)
llvm-svn: 50961
2008-05-12 01:12:24 +00:00
c38c1712f7
Make constructors target-specific. This fixes problems where the path would
...
include backslashes on Windows. This should fix llvm-ld problems on win32.
llvm-svn: 50960
2008-05-11 17:37:40 +00:00
a38e72d247
Add note
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llvm-svn: 50959
2008-05-11 14:33:15 +00:00
47fed61526
Fix various DOUTs to not call the extremely expensive Value::getName()
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method. DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated. Just call getNameSTart,
which is close enough and doesn't cause heap traffic.
llvm-svn: 50958
2008-05-11 01:55:59 +00:00
82146fa267
Simplify code by using SwitchInst::findCaseValue instead of reimplementing it.
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llvm-svn: 50957
2008-05-10 23:56:54 +00:00
acbdaa2406
Fix linking of internal aliases
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llvm-svn: 50950
2008-05-10 14:41:43 +00:00
f6caff66a1
merge of use-diet branch to trunk
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llvm-svn: 50943
2008-05-10 08:32:32 +00:00
71b9afb053
When transforming a vector_shuffle to a load, the base address must not be an undef.
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llvm-svn: 50940
2008-05-10 06:46:49 +00:00
3c0e11af64
For now, abort when an ISD::VAARG is encountered on x86-64, rather
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than silently generate invalid code.
llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.
llvm-svn: 50930
2008-05-10 01:26:14 +00:00
da2587cedc
Some clean up.
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llvm-svn: 50929
2008-05-10 00:59:18 +00:00
bb48d55a88
If movl top bits are undef, let it be selected to movlps, etc.
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llvm-svn: 50928
2008-05-10 00:58:41 +00:00
bec201fa06
If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy.
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llvm-svn: 50927
2008-05-10 00:17:50 +00:00
19e3c857b8
Cosmetic changes:
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- Comment fixes.
- Moar whitespace.
- Made ivars "private" by default.
No functionality change.
llvm-svn: 50926
2008-05-10 00:12:52 +00:00
867af2678f
Add a pattern to do move the low element of a v4f32 and zero extend the rest.
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llvm-svn: 50922
2008-05-09 23:37:55 +00:00
66da8b5334
Remove an evil vector bool. Cosmetic refactoring,
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no functional change.
llvm-svn: 50921
2008-05-09 23:28:24 +00:00
961339bbdb
Handle a few more cases of folding load i64 into xmm and zero top bits.
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Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.
llvm-svn: 50918
2008-05-09 21:53:03 +00:00
cff7df201c
Rewrite tail merging algorithm to handle the
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case where there are multiple blocks with a large
number of common tail instructions more efficiently
(compile time optimization).
llvm-svn: 50916
2008-05-09 21:24:35 +00:00
42d46f2aa3
put LibCallAliasAnalysis into anonymous namespace to avoid
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clashes on ::X
llvm-svn: 50912
2008-05-09 20:35:45 +00:00
a4ee1f516f
don't sink invokes, even if they are readonly. This fixes a
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crash on kimwitu++.
llvm-svn: 50901
2008-05-09 15:07:33 +00:00
437435dcbc
Fix a type and formatting.
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llvm-svn: 50900
2008-05-09 12:20:10 +00:00
aaba10e843
Implement PR2298. This transforms:
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~x < ~y --> y < x
-x == -y --> x == y
llvm-svn: 50882
2008-05-09 05:19:28 +00:00
e7f0afe168
restore doxygen comment.
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llvm-svn: 50881
2008-05-09 04:43:13 +00:00
a50eed4af9
Check for validity of aliasee pointer before dereference.
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llvm-svn: 50878
2008-05-08 23:11:06 +00:00
0360ecbec1
Use movq to move low half of XMM register and zero-extend the rest.
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llvm-svn: 50874
2008-05-08 22:35:02 +00:00
954907aa6f
conservatively say that volatile stores read memory.
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llvm-svn: 50872
2008-05-08 21:58:49 +00:00
c2e108430f
store can't read from memory.
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llvm-svn: 50869
2008-05-08 21:47:43 +00:00
d12c519b74
Remove dead return. Thanks to Bill for the review!
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llvm-svn: 50863
2008-05-08 18:26:56 +00:00
829046b0b4
Improve pass documentation and comments.
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Patch by Matthijs Kooijman!
llvm-svn: 50861
2008-05-08 17:46:35 +00:00
49a594e6ab
More than just loads can read from memory: readonly calls like strlen
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also need to be checked for memory modifying instructions before we
can sink them. THis fixes the second half of PR2297.
llvm-svn: 50860
2008-05-08 17:37:37 +00:00
4fa09669d8
Make instcombine's DSE respect loads as well as stores. It is not safe to
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delete the first store in:
store x -> p
load p
store y -> p
This is for PR2297.
llvm-svn: 50859
2008-05-08 17:20:30 +00:00
8462711ce8
add a new Instruction::mayReadFromMemory predicate, make
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Instruction::mayWriteToMemory stronger for invokes.
llvm-svn: 50858
2008-05-08 17:16:51 +00:00
4758caa926
Check linkage.
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llvm-svn: 50851
2008-05-08 15:08:39 +00:00
9897eee483
Get exception handling working again on 64 bit
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Darwin. This is a hack of course, but it does
at least look at the right thing: gotpcrel means
that this is already an offset, so an explicit
offset is not needed (and wrong). I think this
is good enough for the moment: Anton is working
on something better.
llvm-svn: 50850
2008-05-08 12:33:11 +00:00
f4b42f545b
Add support for constant folding the 'offsetof' pattern even if the
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base is not zero. This fixes test/C++Frontend/2008-05-07-CrazyOffsetOf.cpp
llvm-svn: 50840
2008-05-08 04:54:43 +00:00
78af38c392
Handle vector move / load which zero the destination register top bits (i.e. movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine.
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llvm-svn: 50838
2008-05-08 00:57:18 +00:00
fc2edad4ae
Turn StripPointerCast() into a method
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llvm-svn: 50836
2008-05-07 22:54:15 +00:00
621d33bbc0
Add a new LibCallAliasAnalysis pass, which is parameterized
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by an instance of LibCallInfo to provide mod/ref info of
standard library functions. This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.
llvm-svn: 50827
2008-05-07 19:53:05 +00:00
e2b0bf43a7
Output correct exception handling and frame info
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on x86-64 linux. This causes no regressions on
32 bit linux and 32 bit ppc. More tests pass
on 64 bit ppc with no regressions. I didn't
turn on eh on 64 bit linux because the intrinsics
needed to compile the eh runtime aren't done
yet. But if you turn it on and link with the
mainline runtime then eh seems to work fine
on x86-64 linux with this patch. Thanks to
Dale for testing. The main point of the patch
is that if you output that some object is
encoded using 4 bytes you had better not output
8 bytes for it: the patch makes everything
consistent.
llvm-svn: 50825
2008-05-07 19:11:09 +00:00
9a35f1b702
Add a new interface for describing the behavior of library calls. This
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Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.
This isn't used by anything yet.
llvm-svn: 50820
2008-05-07 18:21:13 +00:00
7ca4a67ca1
Yet another nasty spiller bug.
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%ecx = op
store %cl<kill>, (addr)
(addr) = op %al
It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below.
llvm-svn: 50794
2008-05-07 00:49:28 +00:00
5a3eecdfd8
Fix a bug in the ComputeMaskedBits logic for multiply.
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llvm-svn: 50793
2008-05-07 00:35:55 +00:00
09cfb1cf2d
If weak GlobalVariable was bitcast'ed to different type during linking
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we will need to strip all casts for intializer lookup.
llvm-svn: 50776
2008-05-06 22:52:54 +00:00
82c02b28f3
Make StripPointerCast a common function (should we mak it method of Value instead?)
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llvm-svn: 50775
2008-05-06 22:52:30 +00:00
0e1ab4a9be
We need to update PHIs containing the exiting block, not the exit block. We really should come up with better names for these.
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llvm-svn: 50770
2008-05-06 20:55:16 +00:00
7ffc3c9a95
Fix typo.
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llvm-svn: 50713
2008-05-06 05:40:11 +00:00
f0bdd22ffd
Fix typo and indentation.
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llvm-svn: 50706
2008-05-06 04:03:18 +00:00
25f08069ae
Fix renamePathOnDisk on Win32, patch from David Leon. This fixes problems with
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llvm-ar being unable to rename files.
llvm-svn: 50702
2008-05-06 03:42:21 +00:00
de68fabb35
fix typo Duncan noticed
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llvm-svn: 50699
2008-05-06 02:31:18 +00:00
888594bdf4
Match things like 'armv5tejl-unknown-linux-gnu' for PR2290
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llvm-svn: 50698
2008-05-06 02:29:28 +00:00
6a2da37c0e
Make several variable declarations static.
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llvm-svn: 50696
2008-05-06 01:53:16 +00:00
a8b7e78f54
Remove uses of llvm/System/IncludeFile.h that are no longer needed.
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llvm-svn: 50695
2008-05-06 01:32:53 +00:00
38dc08f36f
Instead of enumerating each opcode that isn't handled that
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ComputeMaskedBits handles, just use a 'default:'. This avoids
TargetLowering's list getting out of date with SelectionDAG's.
llvm-svn: 50693
2008-05-06 00:53:29 +00:00
cf0e3acf16
Correct the value of LowBits in srem and urem handling in
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ComputeMaskedBits.
llvm-svn: 50692
2008-05-06 00:51:48 +00:00
72a0bc148c
Fix a broken doxygen comment, and reword it for clarity.
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llvm-svn: 50687
2008-05-06 00:20:10 +00:00
6e2bf7c67e
add a micro optzn.
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llvm-svn: 50681
2008-05-05 23:19:45 +00:00
310a38d51e
Improved generated code for atomic operators
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llvm-svn: 50677
2008-05-05 22:56:23 +00:00
dbfcce37fe
Code clean up. No functionality change.
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llvm-svn: 50675
2008-05-05 22:12:23 +00:00
4ead264c08
Fix: Some classes were derived from a class in an anonymous namespace, but they
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themselves weren't in the anonymous namespace.
llvm-svn: 50673
2008-05-05 21:37:59 +00:00
8ed8e3d0e6
Fix a crash when threading a block that includes a MRV call result.
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DemoteRegToStack doesn't work with MRVs yet, because it relies on the
ability to load/store things.
This fixes PR2285.
llvm-svn: 50667
2008-05-05 20:21:22 +00:00
3e58393c3d
Added addition atomic instrinsics and, or, xor, min, and max.
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llvm-svn: 50663
2008-05-05 19:05:59 +00:00
b42c28c3dc
Fix IsLinux being uninitialized on non-Linux targets.
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llvm-svn: 50660
2008-05-05 18:43:07 +00:00
86cb31862f
Fix more -Wshorten-64-to-32 warnings.
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llvm-svn: 50659
2008-05-05 18:30:58 +00:00
4b0386ce62
Fix 80col violation
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llvm-svn: 50654
2008-05-05 17:08:59 +00:00
e3a63ba3cd
Fix a bug in the ELF writer that caused it to produce malformed
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ELF headers. The ELF writer still isn't generally usable though.
llvm-svn: 50652
2008-05-05 16:48:32 +00:00
6fd71c6512
Use a dedicated IsLinux flag instead of an ELFLinux TargetType.
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llvm-svn: 50649
2008-05-05 16:11:31 +00:00
bcde172222
Add AsmPrinter support for emitting a directive to declare that
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the code being generated does not require an executable stack.
Also, add target-specific code to make use of this on Linux
on x86.
llvm-svn: 50634
2008-05-05 00:28:39 +00:00
9205c8562c
Add General Dynamic TLS model for X86-64. Some parts looks really ugly (look for tlsaddr pattern),
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but should work. Work is in progress, more models will follow
llvm-svn: 50630
2008-05-04 21:36:32 +00:00
c17c8f3ec4
regenerate
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llvm-svn: 50621
2008-05-04 17:18:47 +00:00
a735a9c481
Use (void) instead of () in C code.
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llvm-svn: 50620
2008-05-04 12:55:34 +00:00
d9481366e3
Select vector shift with non-immediate i32 shift amount operand by first moving the operand into the right register.
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llvm-svn: 50619
2008-05-04 09:15:50 +00:00
2d7a4d70c3
processStore may delete the instruction, avoid
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using dyn_cast<> on already freed memory.
llvm-svn: 50618
2008-05-04 08:51:25 +00:00
2a45575c71
Implement destructor for PostDominatorTree to eliminate a memory leak.
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llvm-svn: 50607
2008-05-03 20:25:26 +00:00
fa0e3c4a92
Handle multiple return values.
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llvm-svn: 50604
2008-05-03 01:12:15 +00:00
cdf22f2953
Add separate intrinsics for MMX / SSE shifts with i32 integer operands. This allow us to simplify the horribly complicated matching code.
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llvm-svn: 50601
2008-05-03 00:52:09 +00:00
a1ec89fbf1
Do not sink getresult.
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llvm-svn: 50600
2008-05-03 00:36:30 +00:00
ab8cacee2d
Add assert.
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llvm-svn: 50596
2008-05-02 22:13:33 +00:00
1962c2be6a
Fix a mistake in the computation of leading zeros for udiv.
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llvm-svn: 50591
2008-05-02 21:30:02 +00:00
82b9e96274
Suppress -Wshorten-64-to-32 warnings for 64-bit hosts.
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llvm-svn: 50590
2008-05-02 21:15:08 +00:00
5f0563ceb6
strength reduce exp2 into ldexp, rdar://5852514
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llvm-svn: 50586
2008-05-02 18:43:35 +00:00
a700b2bd0f
add a FIXME so we remember to eventually remove this code.
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llvm-svn: 50582
2008-05-02 17:18:31 +00:00
fa8f9f937a
Undo r50574. We are already ensuring the folded load address is 16-byte aligned.
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llvm-svn: 50578
2008-05-02 17:01:01 +00:00
Chris Lattner