1a4492be97
Fix a couple more places where we are creating ld / st instructions without memoperands.
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llvm-svn: 85746
2009-11-01 22:04:35 +00:00
43219997b6
Make use of imm12 version of Thumb2 ldr / str instructions more aggressively.
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llvm-svn: 85743
2009-11-01 21:12:51 +00:00
ef94654363
fix two strange things in the default passmgr:
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1. we'd run simplifycfg at the very start, even though
the per function passes have already cleaned this up.
2. In the main per-function pipeline that is interlaced with inlining
etc, we would do instcombine, jump threading, simplifycfg *before*
doing SROA. SROA is much more likely to expose opportunities for
these passes than they are for SROA, so move SRoA up earlier.
also add some comments.
llvm-svn: 85742
2009-11-01 20:41:59 +00:00
0840cc02ce
When determining whether a reference to a static data member is an
...
integral constant expression, make sure to find where the initializer
was provided---inside or outside the class definition---since that can
affect whether we have an integral constant expression (and, we need
to see the initializer itself).
llvm-svn: 85741
2009-11-01 20:32:48 +00:00
3e6398baa5
merge phi-merge.ll into phi.ll
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I don't know what Dan wants to do with phi-merge-gep.ll, I'll let
him deal with it because instcombine may end up sinking these.
llvm-svn: 85739
2009-11-01 20:10:11 +00:00
328ef89bd1
when merging two loads, make sure to take the min of their alignment,
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not the max. This didn't matter until the previous patch because
instcombine would refuse to sink loads with differenting alignments.
llvm-svn: 85738
2009-11-01 20:07:07 +00:00
2a249e267a
split load sinking out to its own function, like gep sinking.
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llvm-svn: 85737
2009-11-01 20:04:24 +00:00
0b40a8bc0e
fix a bug noticed by inspection: when instcombine sinks loads through
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phis, it didn't preserve the alignment of the load. This is a missed
optimization of the alignment is high and a miscompilation when the
alignment is low.
llvm-svn: 85736
2009-11-01 19:50:13 +00:00
2805f116f6
IPSCCP apparently is not a superset of IPCP, this is bad,
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but I'll investigate it separately. This unbreaks
test/FrontendC/weak_constant.c
llvm-svn: 85735
2009-11-01 19:29:12 +00:00
d162b5c955
convert to filecheck.
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llvm-svn: 85734
2009-11-01 19:22:20 +00:00
f5e4342f45
Improve the other instance of the comment.
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llvm-svn: 85733
2009-11-01 19:16:21 +00:00
f25d301311
Add a missing closing parenthesis, and tweak to fit in 80
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columns.
llvm-svn: 85732
2009-11-01 19:12:43 +00:00
649f4e9e8f
only run GlobalDCE at -O3 and run it late instead of early.
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GlobalOpt already deletes trivially dead functions/globals,
so GlobalDCE only adds values for cycles of dead things.
llvm-svn: 85731
2009-11-01 19:09:12 +00:00
b5d9c8c708
cleanups, switch GlobalDCE to SmallPtrSet instead of std::set
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llvm-svn: 85730
2009-11-01 19:03:42 +00:00
2fa61f8427
We currently only run ipsccp at LTO time, which is silly. It subsumes
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ipconstprop and doesn't take much time. Just run it in its place.
This adds a testcase for it, which I plan to expand to cover other
"integration" cases, where we expect the optimizer to be able to
eliminate various things. Due to phase order issues we've regressed
in a number of areas and integration tests are the only way I see to
prevent this.
llvm-svn: 85729
2009-11-01 18:57:49 +00:00
37536b90e1
remove a bunch of locking from LLVMContextImpl. Since only one thread
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can be banging on a context at a time, this isn't needed. Owen, please
review.
llvm-svn: 85728
2009-11-01 18:42:03 +00:00
683dcc63b1
Add DragonFly BSD to supported platforms list.
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llvm-svn: 85727
2009-11-01 18:30:27 +00:00
a8fa825177
Fix DragonFly BSD define in compiler-rt.
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llvm-svn: 85726
2009-11-01 18:25:55 +00:00
249f96e339
improve comment.
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llvm-svn: 85725
2009-11-01 18:17:37 +00:00
1756673f58
add a comment about why we don't allow inlining indbr.
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llvm-svn: 85724
2009-11-01 18:16:30 +00:00
50bc004b67
Fix tests.
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llvm-svn: 85723
2009-11-01 18:13:29 +00:00
253bc77513
the verifier shouldn't modify the IR.
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llvm-svn: 85722
2009-11-01 18:11:50 +00:00
5897e097a6
Within a template, qualified name lookup can refer to a non-dependent type
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that is not known to be a base class at template definition time due
to some dependent base class. Treat qualified name lookup that refers
to a non-static data member or function as implicit class member
access when the "this" type would be dependent.
llvm-svn: 85718
2009-11-01 17:08:18 +00:00
291f6145b8
Reverting 85714, 85715, 85716, which are breaking the build
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llvm-svn: 85717
2009-11-01 16:42:53 +00:00
2b12b95d5d
Add a function to Passes.h to allow clients to create instances
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of the ScalarEvolution pass without needing to #include ScalarEvolution.h.
llvm-svn: 85716
2009-11-01 15:28:36 +00:00
b49c889d53
Don't #include Pass.h from CallGraph.h.
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llvm-svn: 85715
2009-11-01 15:23:35 +00:00
576ac96367
Remove the #include of Pass.h from PassManager.h. This breaks a significant
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#include dependency, as frontends commonly pull in PassManager.h.
llvm-svn: 85714
2009-11-01 15:20:19 +00:00
1a8b80ed5a
teach ipsccp and ipconstprop that a blockaddress doesn't 'take the address' of a function
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in a way that should prevent ip constprop. This allows clang/test/CodeGen/indirect-goto.c
to pass with the new indirect goto lowering.
llvm-svn: 85709
2009-11-01 06:11:53 +00:00
a1dc101f66
change llvm::MergeBlockIntoPredecessor to not merge two blocks BB1->BB2
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when BB2 has its address taken. Since it ends up doing BB2->rauw(BB1),
this can cause the address of the entry block to be taken. Since it is
generally undesirable to nuke blocks whose address is taken, even when
we can, just unconditionally stop this xform.
llvm-svn: 85708
2009-11-01 04:57:33 +00:00
746139b736
strengthen an assumption: RevectorBlockTo knows that PredBB
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ended in an uncond branch because the pass requires BreakCriticalEdges.
However, BCE doesn't eliminate critical adges from indbrs.
llvm-svn: 85707
2009-11-01 04:23:20 +00:00
274717419c
fix an issue where the verifier would reject a function whose entry
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block had its address taken even if the blockaddress was dead.
llvm-svn: 85706
2009-11-01 04:08:01 +00:00
7a8db3a41a
if CostMetrics says to never duplicate some code, don't unswitch a loop.
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This prevents unswitching from duplicating indbr's.
llvm-svn: 85705
2009-11-01 03:42:55 +00:00
54a4b84012
constant fold indirectbr(blockaddress(%bb)) -> br label %bb.
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llvm-svn: 85704
2009-11-01 03:40:38 +00:00
50ba5c3dc2
improve x86 codegen support for blockaddress. We now compile
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the testcase into:
_test1: ## @test1
## BB#0: ## %entry
leaq L_test1_bb6(%rip), %rax
jmpq *%rax
L_test1_bb: ## Address Taken
LBB1_1: ## %bb
movb $1, %al
ret
L_test1_bb6: ## Address Taken
LBB1_2: ## %bb6
movb $2, %al
ret
Note, it is very very strange that BlockAddressSDNode doesn't carry
around TargetFlags. Dan, please fix this.
llvm-svn: 85703
2009-11-01 03:25:03 +00:00
4578f8ea07
pull check for return inst out of loop, never inline a callee that contains
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an indirectbr.
llvm-svn: 85702
2009-11-01 03:07:53 +00:00
c559a9f686
Fix BlockAddress::replaceUsesOfWithOnConstant to correctly
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maintain the block use count in SubclassData.
llvm-svn: 85701
2009-11-01 03:03:03 +00:00
140a754ab2
implement linker support for BlockAddress.
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llvm-svn: 85700
2009-11-01 02:46:39 +00:00
aa99c94e2a
Revert 85678/85680. The decision is to stay with the current form of
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indirectbr, thus we don't need "blockaddr(@func, null)". Eliminate it
for simplicity.
llvm-svn: 85699
2009-11-01 01:27:45 +00:00
6f29ad9170
Use cbz and cbnz instructions.
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llvm-svn: 85698
2009-10-31 23:46:45 +00:00
5cba8de2c8
vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
...
them for scalar floating point operations for now.
llvm-svn: 85697
2009-10-31 22:57:36 +00:00
403202aef1
Consolidate test files
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llvm-svn: 85696
2009-10-31 22:20:56 +00:00
c79fb530d4
Change to use FileCheck
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llvm-svn: 85695
2009-10-31 22:16:14 +00:00
69f364babc
Make tests more explicit about which instructions are expected.
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llvm-svn: 85694
2009-10-31 22:14:17 +00:00
259c37cc55
Grammar tweak to comments
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llvm-svn: 85693
2009-10-31 22:12:44 +00:00
a546dcf418
Make sure PRE doesn't split crit edges from indirectbr.
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llvm-svn: 85692
2009-10-31 22:11:15 +00:00
2c3e618a06
Update test to be more explicit about what instruction sequences are expected for each operation.
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llvm-svn: 85691
2009-10-31 22:10:38 +00:00
c872b09676
llvm::SplitEdge should refuse to split an edge from an indirectbr.
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Fix CodeGenPrepare to not try to split edges from indirectbr.
llvm-svn: 85690
2009-10-31 22:04:43 +00:00
0de95af62d
Update test to be more explicit about what instruction sequences are expected for each operation.
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llvm-svn: 85689
2009-10-31 21:52:58 +00:00
ba364b0a9a
update the comment above llvm::SplitCriticalEdge, and make
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it abort on IndirectBrInst as describe in the comment.
llvm-svn: 85688
2009-10-31 21:51:10 +00:00
8fe6fd702d
Expand 64-bit logical shift right inline
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llvm-svn: 85687
2009-10-31 21:42:19 +00:00
Evan Cheng