808dca12f8
Fix X86RegisterInfo::getMatchingSuperRegClass for sub_8bit_hi.
...
It is OK for B to be any GR8_ABCD_H superclass, the returned register class
doesn't have to map surjectively onto B.
llvm-svn: 130892
2011-05-04 23:54:54 +00:00
369bddf5ad
Fix a batch of x86 tests to be coalescer independent.
...
Most of these tests require a single mov instruction that can come either before
or after a 2-addr instruction. -join-physregs changes the behavior, but the
results are equivalent.
llvm-svn: 130891
2011-05-04 23:54:51 +00:00
260c4a9466
Document the automatic alias printing of InstAliases.
...
llvm-svn: 130889
2011-05-04 23:40:14 +00:00
37d44bdd92
Add explicit 'unregister' method to CrashRecoveryConextCleanupRegistrar.
...
llvm-svn: 130885
2011-05-04 23:26:59 +00:00
dd550305e6
Give this test an explicit register allocator, so that it can work even if
...
the default register allocator is changed.
llvm-svn: 130883
2011-05-04 23:14:02 +00:00
2a40131f6b
SjLj EH could produce a machine basic block that legitimately has more than one
...
landing pad as its successor.
SjLj exception handling jumps to the correct landing pad via a switch statement
that's generated right before code-gen. Loosen the constraint in the machine
instruction verifier to allow for this. Note, this isn't the most rigorous check
since we cannot determine where that switch statement came from. But it's
marginally better than turning this check off when SjLj exceptions are used.
<rdar://problem/9187612>
llvm-svn: 130881
2011-05-04 22:54:05 +00:00
306f8db721
Preserve line number information while threading jumps.
...
llvm-svn: 130880
2011-05-04 22:48:19 +00:00
892e9934ba
Create the parent directories to place the .gcda files in if they don't exist.
...
That's kinda weird because the .gcno files are supposed to already be there,
but libgcov does this and somehow Google has managed to depend on it.
llvm-svn: 130879
2011-05-04 22:34:29 +00:00
0fe4608af2
Re-commit r130862 with a minor change to avoid an iterator running off the edge in some cases.
...
Original message:
Teach MachineCSE how to do simple cross-block CSE involving physregs. This allows, for example, eliminating duplicate cmpl's on x86. Part of rdar://problem/8259436 .
llvm-svn: 130877
2011-05-04 22:10:36 +00:00
c7e4fa7c19
Preserve line number info.
...
llvm-svn: 130876
2011-05-04 21:58:58 +00:00
e53ae508ec
This test fails on ARM. The test shouldn't explicitly specify alignment (and alignment 4 is wrong) and requires hard-float.
...
llvm-svn: 130875
2011-05-04 21:57:44 +00:00
1fb95c996b
If builder is initialized using an instruction as insertion point, then use the instruction's debug location as current debug location.
...
llvm-svn: 130874
2011-05-04 21:57:22 +00:00
0daa07eb90
preserve line number info.
...
llvm-svn: 130869
2011-05-04 21:37:05 +00:00
3bd79ba856
Back out r130862; it appears to be breaking bootstrap.
...
llvm-svn: 130867
2011-05-04 20:48:42 +00:00
a16fc2fec0
Teach MachineCSE how to do simple cross-block CSE involving physregs. This allows, for example, eliminating duplicate cmpl's on x86. Part of rdar://problem/8259436 .
...
llvm-svn: 130862
2011-05-04 19:54:24 +00:00
9aa54fef84
Remove an unused variable.
...
llvm-svn: 130860
2011-05-04 19:13:01 +00:00
28a93a49bb
Fix more register and coalescing dependencies.
...
llvm-svn: 130859
2011-05-04 19:02:11 +00:00
d7fd7bfc31
Explicitly request physreg coalesing for a bunch of Thumb2 unit tests.
...
These tests all follow the same pattern:
mov r2, r0
movs r0, #0
$CMP r2, r1
it eq
moveq r0, #1
bx lr
The first 'mov' can be eliminated by rematerializing 'movs r0, #0' below the
test instruction:
$CMP r0, r1
mov.w r0, #0
it eq
moveq r0, #1
bx lr
So far, only physreg coalescing can do that. The register allocators won't yet
split live ranges just to eliminate copies. They can learn, but this particular
problem is not likely to show up in real code. It only appears because r0 is
used for both the function argument and return value.
llvm-svn: 130858
2011-05-04 19:02:07 +00:00
093a94cdae
Implement SystemZRegisterInfo::getMatchingSuperRegClass to enable cross-class joins.
...
llvm-svn: 130857
2011-05-04 19:02:04 +00:00
e7528c45ea
FileCheckize and break dependence on coalescing order.
...
llvm-svn: 130856
2011-05-04 19:02:01 +00:00
067ba3c23c
Explicitly request -join-physregs for some tests that depend on it.
...
llvm-svn: 130855
2011-05-04 19:01:59 +00:00
39ecf816c5
Do not emit location expression size twice.
...
llvm-svn: 130854
2011-05-04 19:00:57 +00:00
2998e6ce46
Fix cmake build.
...
llvm-svn: 130850
2011-05-04 18:46:56 +00:00
3bace5d223
Remove LLVM IR metadata in test case committed in r130847.
...
llvm-svn: 130849
2011-05-04 18:28:36 +00:00
23e8ecf125
Prevent instructions using $gp from being placed between a jalr and the instruction that restores the clobbered $gp.
...
llvm-svn: 130847
2011-05-04 17:54:27 +00:00
a75589171a
Producing a DW_FORM_addr for DW_AT_stmt_list is probably correct, but
...
it is both inefficient and unexpected by dwarfdump. Change to
a DW_FORM_data4.
While in here, change the predicate name to reflect that the position
is not really absolute (it is an offset), just that the linker needs a
relocation.
llvm-svn: 130846
2011-05-04 17:44:06 +00:00
f71fe4333b
Rename -disable-physical-join to -join-physregs and invert it.
...
Physreg joining is still on by default, but I will turn it off shortly.
llvm-svn: 130844
2011-05-04 16:45:05 +00:00
c981f6299e
Tighten up check for empty (i.e. no meaningful debug info) module. This fixes dwarf-die2.c test case from gcc test suite.
...
llvm-svn: 130842
2011-05-04 16:34:02 +00:00
a228785526
Add variations on: max(x,y) >= min(x,z) folds to true. This isn't that common,
...
but according to my super-optimizer there are only two missed simplifications
of -instsimplify kind when compiling bzip2, and this is one of them. It amuses
me to have bzip2 be perfectly optimized as far as instsimplify goes!
llvm-svn: 130840
2011-05-04 16:05:05 +00:00
6d9f061a6b
Emit gcov data files to the directory specified in the metadata produced by the
...
frontend, if applicable.
llvm-svn: 130835
2011-05-04 04:03:04 +00:00
0e5667bc89
Fix crash when not setting GCOV_PREFIX.
...
llvm-svn: 130834
2011-05-04 03:58:45 +00:00
3d57441e56
Remove dead intrinsics.
...
llvm-svn: 130831
2011-05-04 02:40:54 +00:00
1abe296cfd
indvars: Added DisableIVRewrite and WidenIVs.
...
This adds functionality to remove size/zero extension during indvars
without generating a canonical IV and rewriting all IV users. It's
disabled by default so should have no effect on codegen. Work in progress.
llvm-svn: 130829
2011-05-04 02:10:13 +00:00
737aac5107
The system suppression file should catch these, but since they *once again* are
...
not, I'll just add them here and be done with it.
llvm-svn: 130819
2011-05-04 01:03:02 +00:00
f1b401800a
Don't depend on the physreg coalescing order.
...
llvm-svn: 130818
2011-05-04 01:01:47 +00:00
5b5abb4ea1
Don't run this test through -regalloc=basic.
...
The basic allocator is really bad about hinting, so it doesn't eliminate all
copies when physreg joining is disabled.
llvm-svn: 130817
2011-05-04 01:01:44 +00:00
d3b2f44c9d
Fix register-dependent XCore tests
...
llvm-svn: 130816
2011-05-04 01:01:41 +00:00
7f7fc82141
Fix register-dependent test in MSP430.
...
llvm-svn: 130815
2011-05-04 01:01:39 +00:00
839beb4124
Implement MSP430RegisterInfo::getMatchingSuperRegClass to enable cross-class
...
coalescing.
llvm-svn: 130814
2011-05-04 01:01:36 +00:00
438dc7e1a7
Remove some random comments that snuck in from somewhere.
...
llvm-svn: 130812
2011-05-04 00:48:02 +00:00
f8be385c9b
Mark ultra-super-registers QQQQ as call-clobbered instead of the D sub-registers.
...
LiveVariables doesn't understand that clobbering D0 and D1 completely overwrites
Q0, so if Q0 is live-in to a function, its live range will extend beyond a
function call that only clobbers D0 and D1. This shows up in the
ARM/2009-11-01-NeonMoves test case.
LiveVariables should probably implement the much stricter rules for physreg
liveness that RAFast imposes - a physreg is killed by the first use of any
alias.
llvm-svn: 130801
2011-05-03 22:31:24 +00:00
51b35f7bb1
Fix a bunch of ARM tests to be register allocation independent.
...
llvm-svn: 130800
2011-05-03 22:31:21 +00:00
38c4e34abb
indvars: Added canExpandBackEdgeTakenCount.
...
Only create a canonical IV for backedge taken count if it will
actually be used by LinearFunctionTestReplace. And some related
cleanup, preparing to reduce dependence on canonical IVs.
No significant effect on x86 or arm in the test-suite.
llvm-svn: 130799
2011-05-03 22:24:10 +00:00
543596d57b
Even if the subprogram is going to use AT_specification, emit DW_AT_MIPS_linkage_name. This helps gdb and fixes var-path-expr.exp regression reported by gdb testsuite.
...
llvm-svn: 130794
2011-05-03 21:50:34 +00:00
f6daf94ab2
MCDwarf: Don't save Twine to local variable, this is almost never safe to do
...
(and should thus never be done).
- Should fix a crash on win32.
llvm-svn: 130793
2011-05-03 21:33:37 +00:00
db0996c822
Replace the "movnt" intrinsics with a native store + nontemporal metadata bit.
...
<rdar://problem/8460511>
llvm-svn: 130791
2011-05-03 21:11:17 +00:00
eaa6ed1ad8
Gracefully handle invalid live ranges. Fix PR9831.
...
Register coalescing can sometimes create live ranges that end in the middle of a
basic block without any killing instruction. When SplitKit detects this, it will
repair the live range by shrinking it to its uses.
Live range splitting also needs to know about this. When the range shrinks so
much that it becomes allocatable, live range splitting fails because it can't
find a good split point. It is paranoid about making progress, so an allocatable
range is considered an error.
The coalescer should really not be creating these bad live ranges. They appear
when coalescing dead copies.
llvm-svn: 130787
2011-05-03 20:42:13 +00:00
0a9c1246d7
Implement some basic simplifications involving min/max, for example
...
max(a,b) >= a -> true. According to my super-optimizer, these are
by far the most common simplifications (of the -instsimplify kind)
that occur in the testsuite and aren't caught by -std-compile-opts.
llvm-svn: 130780
2011-05-03 19:53:10 +00:00
e6ce2053e7
Tidy up. Add missing newline to generated file.
...
llvm-svn: 130779
2011-05-03 19:09:56 +00:00
93b5cdc5ab
Make the test less likely to fail with minor changes.
...
llvm-svn: 130778
2011-05-03 19:09:32 +00:00
22fc723818
Fix function MipsRegisterInfo::getRegisterNumbering.
...
llvm-svn: 130774
2011-05-03 18:41:54 +00:00
c5242b0e78
Remove test for iOS divmod function, since that is disabled for now.
...
llvm-svn: 130769
2011-05-03 17:54:49 +00:00
09585e1c5d
Temporarily disable use of divmod compiler-rt functions for iOS.
...
llvm-svn: 130766
2011-05-03 17:33:22 +00:00
86c6e7057d
Fold ARM coprocessor intrinsics patterns into the instructions defs whenever
...
it's possible.
llvm-svn: 130764
2011-05-03 17:29:29 +00:00
168c9005b5
Add a few ARM coprocessor intrinsics. Testcases included
...
llvm-svn: 130763
2011-05-03 17:29:22 +00:00
600c8a2391
Fix a comment.
...
llvm-svn: 130761
2011-05-03 17:22:56 +00:00
e02e58528a
If the front end has emitted llvm.dbg.cu and other debug info anchors (clang does it now) then use them directly. This saves one scan of entire module, to collect debug info, which in turns saves few machine cycles at compile time.
...
llvm-svn: 130759
2011-05-03 16:45:22 +00:00
09fa69e151
Use llvm.dbg.cu named metadata to collect compile units.
...
llvm-svn: 130756
2011-05-03 16:18:28 +00:00
9c373c1c7a
Remove unused variables caught by GCC's -Wunused-but-set-variable.
...
llvm-svn: 130755
2011-05-03 16:00:27 +00:00
a51ef94ec1
Pass --disable-cfi to llc.
...
llvm-svn: 130754
2011-05-03 15:56:16 +00:00
9973738b65
Add pentium{3,4}m cpus. Patch by Alexander Best!
...
llvm-svn: 130749
2011-05-03 03:42:50 +00:00
d2aa241378
xmm0 is an implicit parameter in this and so shouldn't be in the
...
string template.
Fixes rdar://8493866
llvm-svn: 130747
2011-05-03 01:28:32 +00:00
6136e94897
Add an unfolded offset field to LSR's Formula record. This is used to
...
model constants which can be added to base registers via add-immediate
instructions which don't require an additional register to materialize
the immediate.
llvm-svn: 130743
2011-05-03 00:46:49 +00:00
66fd073974
Other parts of the SelectionDAG framework assume that targets use their pointer type for vector indices. Make the vector unrolling code respect that.
...
llvm-svn: 130733
2011-05-02 22:25:45 +00:00
bb35e8ba88
Scanning entire basic block may be too expensive in terms of compile time. Instead, just use whatever location info first non-phi instruction has.
...
llvm-svn: 130729
2011-05-02 21:57:00 +00:00
16f7cf6a2f
Handle <def,undef> in the second loop as well.
...
llvm-svn: 130718
2011-05-02 20:36:53 +00:00
39b56b4b9f
Apparently the check for direct calls is unnecessary.
...
llvm-svn: 130716
2011-05-02 20:16:33 +00:00
6297a715dc
Use the PrintReg adaptor to correctly print live-in registers in debug output.
...
llvm-svn: 130715
2011-05-02 20:06:30 +00:00
7dffc8ecf2
Only ignore <undef> use operands, keep the <def,undef> ops.
...
Def operands may also have an <undef> flag, but that just means that a
sub-register redef doesn't actually read the super-register. For physical
registers, it has no meaning.
llvm-svn: 130714
2011-05-02 20:06:28 +00:00
75e70e16e0
Pass -disable-cfi to llc.
...
llvm-svn: 130713
2011-05-02 19:51:34 +00:00
7219831894
llvmc: Pass -disable-cfi to llc.
...
llvm-svn: 130712
2011-05-02 19:45:24 +00:00
f91c5ab341
Fix PR9579: when simplifying a compare to "true" or "false", and it was
...
a vector compare, generate a vector result rather than i1 (and crashing).
llvm-svn: 130706
2011-05-02 18:51:41 +00:00
6b699f863f
Remove unused variable.
...
llvm-svn: 130705
2011-05-02 18:41:29 +00:00
420ab5f180
Emit debug info for global variables first.
...
This works around a limitation in gdb which is reported by following inherit.exp test failures from gdb testsuite.
gdb.cp/inherit.exp: print g_vB.vB::vb
gdb.cp/inherit.exp: print g_vB.vB::vx
gdb.cp/inherit.exp: print g_vC.vC::vc
gdb.cp/inherit.exp: print g_vC.vC::vx
gdb.cp/inherit.exp: print g_vD.vB::vb
...
llvm-svn: 130702
2011-05-02 18:19:17 +00:00
d47ba853fc
Forgot to commit the changes to this file.
...
llvm-svn: 130695
2011-05-02 16:34:19 +00:00
a3e3699c88
Move some rem transforms out of instcombine and into instsimplify.
...
This automagically provides a transform noticed by my super-optimizer
as occurring quite often: "rem x, (select cond, x, 1)" -> 0.
llvm-svn: 130694
2011-05-02 16:27:02 +00:00
5164e6e8b2
Add 130690 back.
...
llvm-svn: 130693
2011-05-02 15:58:16 +00:00
e406670954
Only produce the eh_frame section if we have at least one personality function.
...
llvm-svn: 130692
2011-05-02 15:49:52 +00:00
a392475865
Revert while I debug the tests that use march but not mtriple.
...
llvm-svn: 130691
2011-05-02 15:42:31 +00:00
c2aad4f2a3
Move ppc OS X to cfi too. I am building it on an old ppc mini, but it will take some time.
...
llvm-svn: 130690
2011-05-02 15:00:52 +00:00
5e9f05c2b8
Remove an unused variable in NDEBUG (found with -Wunused-variable).
...
llvm-svn: 130688
2011-05-02 05:49:01 +00:00
7d4067936a
Minimize the slot indexes spanned by register ranges created when splitting.
...
When an interfering live range ends at a dead slot index between two
instructions, make sure that the inserted copy instruction gets a slot index
after the dead ones. This makes it possible to avoid the interference.
Ideally, there shouldn't be interference ending at a deleted instruction, but
physical register coalescing can sometimes do that to sub-registers.
This fixes PR9823.
llvm-svn: 130687
2011-05-02 05:29:58 +00:00
55f1e202a8
Add a SlotIndexes::insertMachineInstrInMaps to insert the instruction after any null indexes.
...
This makes a difference if a live interval is referring to a deleted
instruction. It can be important to insert an instruction before or after a
deleted instruction to avoid interference.
llvm-svn: 130686
2011-05-02 05:29:56 +00:00
e75ffa1b78
In option typo correction, consider -foo=VALUE flags as two distinct parts. The
...
comments claimed it did this, but the LHS value was actually an unused variable.
The new system considers only the '-foo' part when comparing it for typos
against flags that have values, but still look at the whole string for flags
that don't. That way, we'll still correct '-inst=combine' to '-instcombine'.
llvm-svn: 130685
2011-05-02 05:24:47 +00:00
5f1eb968f0
Remove dead variable pointed out by GCC 4.6 warnings, and reflow this a little
...
to scope a variable more tightly per llvm coding style. No functional change.
llvm-svn: 130684
2011-05-02 05:05:29 +00:00
23f61a09af
enhance memcpyopt to obey -fno-builtin and friends. This addresses a
...
problem reported on cfe-dev.
llvm-svn: 130661
2011-05-01 18:27:11 +00:00
fc8223670a
Add r130623 back now that ELF has been fixed to work with -fno-dwarf2-cfi-asm.
...
llvm-svn: 130658
2011-05-01 15:44:13 +00:00
4471f82e91
Windows/DynamicLibrary.inc: Clean up ELM_Callback. We may check the decl instead of the versions of individual libraries.
...
autoconf: Add checking ELM_Callback decl for mingw32 and mingw-w64.
cmake/config-ix.cmake: Add checking ELM_Callback decl for win32.
llvm-svn: 130657
2011-05-01 13:29:49 +00:00
ddc91b25e3
Remove an unused variable from this function introduced in r130637,
...
likely a result of copy/paste.
llvm-svn: 130640
2011-05-01 06:14:10 +00:00
750cb61553
GCC uses a different encoding of pointers in the FDE when using
...
-fno-dwarf2-cfi-asm. Implement the same behavior.
llvm-svn: 130637
2011-05-01 04:49:54 +00:00
95215a76cd
I forgot these files in the previous commit.
...
llvm-svn: 130635
2011-05-01 04:19:24 +00:00
fd05785324
Simplify the handling of pcrel relocations on ELF. Now we do the right thing
...
for all symbol differences and can drop the old EmitPCRelSymbolValue
method.
This also make getExprForFDESymbol on ELF equal to the one on MachO, and it
can be made non-virtual.
llvm-svn: 130634
2011-05-01 03:50:49 +00:00
3cbc9bece8
Update instructions: LLVM.cmake is now LLVMConfig.cmake
...
llvm-svn: 130631
2011-05-01 02:12:20 +00:00
b7c2286055
Revert the previous patch while I figure out how to make llvm-gcc
...
less agressive about disabling cfi on linux :-(
llvm-svn: 130626
2011-04-30 23:03:44 +00:00
2348cdd67f
X86AsmPrinter doesn't know how to handle the X86II::MO_GOT_ABSOLUTE_ADDRESS flag
...
after folding ADD32ri to ADD32mi, so don't do that.
This only happens when the greedy register allocator gets itself in trouble and
spills %vreg9 here:
16L %vreg9<def> = MOVPC32r 0, %ESP<imp-use>; GR32:%vreg9
48L %vreg9<def> = ADD32ri %vreg9, <es:_GLOBAL_OFFSET_TABLE_>[TF=1], %EFLAGS<imp-def,dead>; GR32:%vreg9
That should never happen, the live range should be split instead.
llvm-svn: 130625
2011-04-30 23:00:05 +00:00
5265bc483e
Enable CFI on OS X.
...
Currently the output should be almost identical to the one produced by CodeGen
to make the transition easier.
The only two differences I know of are:
* Some files get an extra advance loc of size 0. This will be fixed when
relaxations are enabled.
* The optimization of declaring an EH symbol as an external variable is not
implemented. This is a subset of adding the nounwind attribute, so we if really
this at -O0 we should probably do it at the IL level.
llvm-svn: 130623
2011-04-30 22:29:54 +00:00
38a0b94dce
When a physreg is live-in and live through a basic block, make sure its live
...
range covers the entire block.
The live range can't be terminated at a random instruction.
llvm-svn: 130619
2011-04-30 19:12:33 +00:00
9aa91b1f4e
InstCombine: Turn (zext A) udiv (zext B) into (zext (A udiv B)). Same for urem or constant B.
...
This obviously helps a lot if the division would be turned into a libcall
(think i64 udiv on i386), but div is also one of the few remaining instructions
on modern CPUs that become more expensive when the bitwidth gets bigger.
This also helps register pressure on i386 when dividing chars, divb needs
two 8-bit parts of a 16 bit register as input where divl uses two registers.
int foo(unsigned char a) { return a/10; }
int bar(unsigned char a, unsigned char b) { return a/b; }
compiles into (x86_64)
_foo:
imull $205, %edi, %eax
shrl $11, %eax
ret
_bar:
movzbl %dil, %eax
divb %sil, %al
movzbl %al, %eax
ret
llvm-svn: 130615
2011-04-30 18:16:07 +00:00
57b3df59b9
Use SimplifyDemandedBits on div instructions.
...
This folds away silly stuff like (a&255)/1000 -> 0.
llvm-svn: 130614
2011-04-30 18:16:00 +00:00
6a50bbd284
FileCheckize.
...
llvm-svn: 130613
2011-04-30 18:15:53 +00:00
bde52bca69
Implement MCAsmStreamer::EmitEHSymAttributes. Doing this in the asm streamer
...
is a bit ugly, but doing it on the base MCStreamer would be redundant
with the object streamer which does it using SD.
llvm-svn: 130611
2011-04-30 16:34:57 +00:00
0b474c2d15
Handle PrivateExtern eh symbols.
...
llvm-svn: 130609
2011-04-30 16:22:46 +00:00
f5eaa8dc62
Allow folded spills in test.
...
llvm-svn: 130599
2011-04-30 08:00:50 +00:00
ec9b4a6b8b
Avoid using stale entries form the sibling value map.
...
This could happen when trying to use a value that had been eliminated after dead
code elimination and folding loads.
llvm-svn: 130597
2011-04-30 06:42:21 +00:00
357dd36136
Use hysteresis for local live range splitting as well.
...
llvm-svn: 130596
2011-04-30 05:07:46 +00:00
7f7bf595dd
runtime/libprofile/PathProfiling.c: Don't use // comment in C source.
...
llvm-svn: 130589
2011-04-30 03:53:56 +00:00
a3181d12c6
Add all the plumbing needed for MC to expand cfi to the old tables in
...
the final assembly. It is the same technique used when targeting
assemblers that don't support .loc.
llvm-svn: 130587
2011-04-30 03:44:37 +00:00
1d1eced025
Implement MCAsmStreamer::EmitDwarfAdvanceFrameAddr.
...
llvm-svn: 130585
2011-04-30 03:21:04 +00:00
d50e5eb8c3
Update comment.
...
llvm-svn: 130582
2011-04-30 03:13:08 +00:00
6e399a6ecb
Use a greedy algorithm for allocating registers.
...
llvm-svn: 130568
2011-04-30 01:37:54 +00:00
edfabc9aad
Weekly fix of register allocation dependent unit tests.
...
llvm-svn: 130567
2011-04-30 01:37:52 +00:00
9f638ab181
Print out the 'nontemporal' info on a store.
...
llvm-svn: 130562
2011-04-29 23:45:22 +00:00
4105ed1523
Make FastEmit_ri_ try a bit harder to succeed for supported operations; FastEmit_i can fail for non-Thumb2 ARM. Makes ARMSimplifyAddress work correctly, and reduces the number of fast-isel bailouts on non-Thumb ARM.
...
llvm-svn: 130560
2011-04-29 23:34:52 +00:00
e02e07c3a6
80-col.
...
llvm-svn: 130558
2011-04-29 23:12:01 +00:00
468dfabce0
Zap a couple now-unused functions.
...
llvm-svn: 130557
2011-04-29 22:56:48 +00:00
328bad02fa
Switch to ImmLeaf (which can be used by FastISel) for a few more common ARM/Thumb2 patterns.
...
llvm-svn: 130552
2011-04-29 22:48:03 +00:00
a8e7411c74
Assing line number info to new PHIs created by SSA updater.
...
llvm-svn: 130551
2011-04-29 22:28:59 +00:00
7708746c33
Add FastEmitInst_ii for the arm fast isel generator. It doesn't use it, but
...
if it ever did it needs the def machinery.
llvm-svn: 130549
2011-04-29 22:07:50 +00:00
3bc13b4feb
Filter out pattterns from the FastISel emitter which it doesn't actually know how to handle. No significant functionality change at the moment, but it's necessary for some changes I'm planning.
...
llvm-svn: 130547
2011-04-29 21:58:31 +00:00
26b8ac4b8c
Some cleanup and optimize fallthrough more.
...
llvm-svn: 130546
2011-04-29 21:56:31 +00:00
6a85f9b42e
Avoid some uses of .uleb128. This is a small speedup and more importantly
...
lets this code be used when producing assembly code for old assemblers without
uleb support.
llvm-svn: 130544
2011-04-29 21:50:57 +00:00
6c961e1b75
Implement MCAsmStreamer::EmitCFIDefCfa.
...
llvm-svn: 130543
2011-04-29 21:41:06 +00:00
84d7eb7252
Print new instructions without DebugLoc.
...
llvm-svn: 130542
2011-04-29 21:36:04 +00:00
dd937843d3
Fix run-line, again. :(
...
llvm-svn: 130540
2011-04-29 21:33:03 +00:00
86caced370
Re-committing r130454, which does not in fact break anything.
...
Fix a rather obscure crash caused by ARM fast-isel generating code which redefines a register.
rdar://problem/9338332 .
llvm-svn: 130539
2011-04-29 21:22:56 +00:00
c1f7c1d469
Preserve line number information.
...
llvm-svn: 130536
2011-04-29 20:38:55 +00:00
8d46b47787
Add trunc->branch support, this won't help with clang's i8->i1 truncations
...
for bools, but is a start.
llvm-svn: 130534
2011-04-29 20:02:39 +00:00
080d98d3b2
win32: Include DataTypes.h instead of stdint.h to try and fix a Win32 build
...
issue.
llvm-svn: 130530
2011-04-29 18:58:57 +00:00
eeb2cbce80
Cleanup some DOS newlines.
...
llvm-svn: 130529
2011-04-29 18:58:55 +00:00
616044acd5
SimplifyCFG: Expose phi node folding cost threshold as command line parameter
...
llvm-svn: 130528
2011-04-29 18:47:38 +00:00
e3511e15e0
SimplifyCFG: Add CostRemaining parameter to DominatesMergePoint
...
llvm-svn: 130527
2011-04-29 18:47:31 +00:00
61f6602acd
SimplifyCFG: Add Trunc, ZExt and SExt to the list of cheap instructions for phi node folding
...
llvm-svn: 130526
2011-04-29 18:47:25 +00:00
72032861c6
MCAsmLayout: Add support for computing the symbol offset of variables. Not
...
currently used, because variables don't get reported as being "defined".
llvm-svn: 130524
2011-04-29 18:20:20 +00:00
bea7b93c88
MC: Change variable symbols to be recognized as defined, by assigning their sections based on FindAssociatedSection().
...
llvm-svn: 130523
2011-04-29 18:20:17 +00:00
b200f93125
MC/Mach-O: Update getSymbolAddress() to support evaluation of variables.
...
llvm-svn: 130522
2011-04-29 18:13:42 +00:00
29ba55cfe4
MC/Mach-O: Allow emission of relocations for variables in some more cases.
...
llvm-svn: 130520
2011-04-29 18:10:47 +00:00
b9c2b6c50d
MC/Mach-O: Find section ordinal's by looking at the symbol, instead of assuming they are present in a fragment.
...
llvm-svn: 130519
2011-04-29 18:07:43 +00:00
124ae13421
Hoist MCLineEntry construction AsmPrinter so that anyone who derives from AsmPrinter can have line number entries.
...
PR 9810
llvm-svn: 130518
2011-04-29 18:00:54 +00:00
dc3e4cc5ed
MCExpr: Add FindAssociatedSection, which attempts to mirror the 'as' semantics
...
that associate sections with expressions.
llvm-svn: 130517
2011-04-29 18:00:03 +00:00
1bf128eaeb
MC/AsmParser: Generalize a check.
...
llvm-svn: 130515
2011-04-29 17:53:11 +00:00
dd8061e09f
Fix a C++0x portability issue with std::make_pair. Explicitly providing template arguments no longer works when the call arguments are lvalues.
...
llvm-svn: 130513
2011-04-29 16:57:12 +00:00
0e50682f26
Include <pthread.h> before we use pthread_self/pthread_kill
...
llvm-svn: 130510
2011-04-29 16:12:17 +00:00
1fc5bf9fc5
The last hack for producing bit identical output with cfi on OS X.
...
llvm-svn: 130504
2011-04-29 15:09:53 +00:00
697edc89a5
Change DwarfCFIException's member variables to track what it actually
...
emmits: .cfi_personality, .cfi_lsda and the moves.
llvm-svn: 130503
2011-04-29 14:48:51 +00:00
e794e17524
Teach Thumb2 isel to fold and->rotr ==> ROR.
...
Generalization of Nate Begeman's patch!
llvm-svn: 130502
2011-04-29 14:18:15 +00:00
b7a012a282
Factor some code to needsCFIMoves. Avoid printing moves when we don't have to.
...
llvm-svn: 130501
2011-04-29 14:14:06 +00:00
6708499b6d
This is done.
...
llvm-svn: 130499
2011-04-29 14:09:57 +00:00
65266ed4d7
Combine thumb2-ror tests.
...
llvm-svn: 130498
2011-04-29 14:02:41 +00:00
2277ab2ae6
docs/doxygen.css: Tweak padding on memdoc.
...
llvm-svn: 130493
2011-04-29 09:59:12 +00:00
dbad1d1599
Unbreak the MSVC build:
...
- unistd.h doesn't exist with MSVC
- inline must be __inline in Microsoft C
- atexit cannot take a function declared as void f(), must be void f(void).
llvm-svn: 130490
2011-04-29 08:56:07 +00:00
f0e3f04470
Balance parentheses.
...
llvm-svn: 130489
2011-04-29 08:41:23 +00:00
16f18ed7b5
InstCombine: turn (C1 << A) << C2) into (C1 << C2) << A)
...
Fixes PR9809.
llvm-svn: 130485
2011-04-29 08:15:41 +00:00
011eae7512
clean up after Sean's r127646 patch.
...
llvm-svn: 130475
2011-04-29 05:40:18 +00:00
1d0c25756e
use the MachineInstrBuilder operator-> to simplify some code.
...
There are probably more instances of this floating around.
llvm-svn: 130474
2011-04-29 05:24:29 +00:00
6d6cb40269
add a missing operator that caused us to have to use (*MIB).foo everywhere.
...
llvm-svn: 130473
2011-04-29 05:24:07 +00:00
68067664c3
Last bit by bit compatibility patch to MCDwarf.cpp: If a FDE with no LSDA is
...
assigned to a CIE that requires one, just output a 0.
llvm-svn: 130472
2011-04-29 03:06:29 +00:00
7c7151512c
Add an alternative implementation of CIE and FDE emission that outputs them
...
in the same order as the one in CodeGen.
llvm-svn: 130471
2011-04-29 02:42:28 +00:00
61aed87a49
Rename profile_rt.so to libprofile_rt.so under configure+make (it already was
...
under cmake).
Add libprofile_rt.a so that we can tell clang to link against it in --coverage
mode. Also turn it on by default in cmake builds.
Oscar, this touches a change you made for EXCLUDE_FROM_ALL support -- I think
I've done the right thing, but please let me know (or fix and commit) if not!
llvm-svn: 130470
2011-04-29 02:12:06 +00:00
9ade5e2495
Update comments and checks to match reality.
...
llvm-svn: 130464
2011-04-29 00:07:20 +00:00
501d2e2c14
Whitespace.
...
llvm-svn: 130463
2011-04-29 00:03:10 +00:00
517728b1ae
Revert r130454; apparently this doesn't actually work.
...
llvm-svn: 130462
2011-04-28 23:55:14 +00:00
37b9ede969
Fix runline.
...
llvm-svn: 130455
2011-04-28 23:12:24 +00:00
e4ecd42926
Fix a rather obscure crash caused by ARM fast-isel generating code which redefines a register.
...
rdar://problem/9338332 .
llvm-svn: 130454
2011-04-28 23:03:25 +00:00
80d1d3aaec
Preserve line number information.
...
llvm-svn: 130450
2011-04-28 22:48:14 +00:00
c99298ab5e
Coalesce some DEBUGs (moving an only-used-in-DEBUG variable's declaration into the DEBUG)
...
llvm-svn: 130448
2011-04-28 22:26:05 +00:00
cf9d1ad62e
We require threse bits to be zero, too.
...
This shouldn't happen in practice because the icmp would be a constant.
Add a check so we don't miscompile code if something goes wrong.
llvm-svn: 130446
2011-04-28 21:38:51 +00:00
6aa79492a5
Only read *predecessor once so as to fix a theoretical issue where it changes
...
between two reads (threading).
Fix an off-by-one in the indirect counter table that I meant to revert after an
earlier experiment. Whoops!
Implement GCOV_PREFIX. Doesn't handle GCOV_PREFIX_STRIP yet.
Fix an off-by-one in string emission. Extra whoops!
Tolerate DISubprograms that have null Function*'s attached to them. I don't yet
understand what this means, but it happens when you have a global static with
a non-trivial constructor/destructor.
Fix a crash on switch statements with a single successor (default-only).
llvm-svn: 130443
2011-04-28 21:35:49 +00:00
a86188bf8e
Target/X86/MC: Add an option for disabling arith relaxation, for my own testing
...
purposes.
llvm-svn: 130438
2011-04-28 21:23:31 +00:00
6bd6a70837
Add the getExprForFDESymbol method that responsible for computing the
...
expressions used in the FDE to refer to symbols.
llvm-svn: 130437
2011-04-28 21:04:39 +00:00
d36bdb5208
Beautify debug info probe output.
...
llvm-svn: 130435
2011-04-28 20:46:18 +00:00
e203bbb47e
Add MemoryBuffer::getBufferKind() to report whether a memory buffer uses malloc'ed or mmap'ed memory. This is for performance analysis.
...
llvm-svn: 130432
2011-04-28 20:34:18 +00:00
72aa1a8a68
Remove DbgDeclare only if all uses are converted.
...
llvm-svn: 130431
2011-04-28 20:32:02 +00:00
367342e209
Remove bounded StringRef::compare() since nothing but Clang SA was using it and it is just as easy to use StringRef::substr() preceding StringRef::compare() to achieve the same thing.
...
llvm-svn: 130430
2011-04-28 20:20:12 +00:00
7cd5101ad3
fast-isel sret calls, try 2. We actually do need to do something on x86-32. rdar://problem/9303592 .
...
llvm-svn: 130429
2011-04-28 20:19:12 +00:00
101720fb58
Fix a comment.
...
llvm-svn: 130428
2011-04-28 20:09:57 +00:00
a5452c0d67
improve comment.
...
llvm-svn: 130426
2011-04-28 20:02:57 +00:00
33d87d97f6
Do not lose line number info while eliminating tail call.
...
llvm-svn: 130419
2011-04-28 18:43:39 +00:00
3cf6d4032a
Actually revert r130348 correctly.
...
llvm-svn: 130418
2011-04-28 18:20:24 +00:00
1777601a74
final step needed to resolve PR6627, which allows us to flatten the code down to
...
a nice and tidy:
%x1 = load i32* %0, align 4
%1 = icmp eq i32 %x1, 1179403647
br i1 %1, label %if.then, label %if.end
instead of doing lots of loads and branches. May the FreeBSD bootloader
long fit in its allocated space.
llvm-svn: 130416
2011-04-28 18:15:47 +00:00
45e393fc9c
code cleanups only.
...
llvm-svn: 130414
2011-04-28 18:08:21 +00:00
d5a80ca3c8
Revert r130348; causing buildbot issues on x86-32.
...
llvm-svn: 130412
2011-04-28 18:06:10 +00:00
715973fc6c
Fix a bug in tblgen that caused incorrect encodings on instructions that specified operands with "bit" instead of "bits<1>".
...
Unfortunately, my only testcase for this is fragile, and the ARM AsmParser can't round trip the instruction in question.
<rdar://problem/9345702>
llvm-svn: 130410
2011-04-28 17:51:45 +00:00
b63596436f
Add command line option to print debug info in human readable form as comment in llvm IR output. This, i.e -enable-debug-info-comment, is very useful if you want to easily find out which optimization pass is losing line number information.
...
llvm-svn: 130409
2011-04-28 17:41:38 +00:00
c4456ae6ec
Reapply r130340: Fix for PR9730.
...
llvm-svn: 130408
2011-04-28 17:30:04 +00:00
4145c0d3b1
InstCombine: Merge "(trunc x) == C1 & (and x, CA) == C2" into a single and+icmp.
...
This happens when GVN widens loads. Part of PR6627.
llvm-svn: 130405
2011-04-28 16:58:40 +00:00
4f012fd0a1
Be more layout aware here and swap the successor and branch condition
...
if it means we get a fallthrough.
llvm-svn: 130404
2011-04-28 16:52:09 +00:00
f81f789b6c
centralize "marking for deletion" into a helper function. Pass GVN around to
...
static functions instead of passing around tons of random ivars.
llvm-svn: 130403
2011-04-28 16:36:48 +00:00
6cec6ab275
Promote toErase to be an ivar of the GVN class.
...
llvm-svn: 130401
2011-04-28 16:18:52 +00:00
c5dac4df2e
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
...
converting the symbol passed to .cfi_personality into bytes is the file.
llvm-svn: 130400
2011-04-28 16:09:09 +00:00
349c3298da
Mark the EH symbol global or weak if the corresponding function is.
...
llvm-svn: 130397
2011-04-28 12:50:37 +00:00
07ef11112e
Fix typos in comments.
...
llvm-svn: 130396
2011-04-28 09:12:47 +00:00
93da3c8233
Fix the last -Wnon-pod-memset I'm seeing. This is benign, but appears
...
a bit more sinister as the memset doesn't do what the constructor does.
There seems to be a cleaner solution than a cast here though, instead we
can point the memset destination into the union its actually trying to
clear.
An alternative is to point to the Untyped member of this union. Review
appreciated, and if that is cleaner I'm happy to switch. All of these
should be functionally equivalent to the original code.
llvm-svn: 130395
2011-04-28 08:37:18 +00:00
3f7b581e2f
Revert an unintended commit. Very sorry for this one.
...
llvm-svn: 130393
2011-04-28 08:18:22 +00:00
0c2bef1716
Fix more -Wnon-pod-memset warnings.
...
llvm-svn: 130392
2011-04-28 08:17:08 +00:00
e63a7b21f6
nuke gold
...
llvm-svn: 130391
2011-04-28 08:17:05 +00:00
827a270a2a
teach GVN to widen integer loads when they are overaligned, when doing an
...
wider load would allow elimination of subsequent loads, and when the wider
load is still a native integer type. This eliminates a ton of loads on
various benchmarks involving struct fields, though it is somewhat hobbled
by clang not being very aggressive about field alignment.
This is yet another step along the way towards resolving PR6627.
llvm-svn: 130390
2011-04-28 07:29:08 +00:00
a98cd22d96
Let the immediate leaf pattern take transforms and switch the signed
...
immediate patterns in arm to using the pattern.
Handles rdar://9299434
llvm-svn: 130386
2011-04-28 05:49:04 +00:00
2a75c72e1c
move PR9803 to this readme.
...
llvm-svn: 130385
2011-04-28 05:33:16 +00:00
2901731553
Add utility method to DenseMap to return the amount of memory used for its buckets.
...
llvm-svn: 130382
2011-04-28 04:52:57 +00:00
2eeee8cfef
Add a small temporary hack for producing identical eh_frame sections on OS X.
...
This removes one of the main advantages of moving eh_frame to MC, but
makes the transition a lot easier to debug (run md5).
llvm-svn: 130379
2011-04-28 04:04:14 +00:00
Jakob Stoklund Olesen