Chris Lattner
0b649dd91f
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 04:23:20 +00:00
Chris Lattner
660a4f389c
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85706 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 04:08:01 +00:00
Chris Lattner
da9c281121
if CostMetrics says to never duplicate some code, don't unswitch a loop.
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This prevents unswitching from duplicating indbr's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:42:55 +00:00
Chris Lattner
0a4c6789d5
constant fold indirectbr(blockaddress(%bb)) -> br label %bb.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:40:38 +00:00
Chris Lattner
43f44aa160
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85703 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:25:03 +00:00
Chris Lattner
b93a23a532
pull check for return inst out of loop, never inline a callee that contains
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an indirectbr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:07:53 +00:00
Chris Lattner
d0ec2352ae
Fix BlockAddress::replaceUsesOfWithOnConstant to correctly
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maintain the block use count in SubclassData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85701 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 03:03:03 +00:00
Chris Lattner
2a749d3647
implement linker support for BlockAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 02:46:39 +00:00
Chris Lattner
cdfc940912
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85699 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-01 01:27:45 +00:00
Evan Cheng
de17fb6e4d
Use cbz and cbnz instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85698 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 23:46:45 +00:00
Jim Grosbach
8cd0a8cb82
vml[as].f32 cause stalls in following advanced SIMD instructions. Avoid using
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them for scalar floating point operations for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85697 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:57:36 +00:00
Jim Grosbach
1820ec5e7a
Consolidate test files
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85696 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:20:56 +00:00
Jim Grosbach
91c0aebe68
Change to use FileCheck
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85695 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:16:14 +00:00
Jim Grosbach
0e5c9beeed
Make tests more explicit about which instructions are expected.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85694 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:14:17 +00:00
Jim Grosbach
6b0b4b3eaf
Grammar tweak to comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85693 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:12:44 +00:00
Chris Lattner
fb6e701f08
Make sure PRE doesn't split crit edges from indirectbr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85692 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:11:15 +00:00
Jim Grosbach
199a4b4c70
Update test to be more explicit about what instruction sequences are expected for each operation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85691 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:10:38 +00:00
Chris Lattner
a4b04210d4
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85690 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 22:04:43 +00:00
Jim Grosbach
07d236ba88
Update test to be more explicit about what instruction sequences are expected for each operation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85689 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:52:58 +00:00
Chris Lattner
1b98ff3e4f
update the comment above llvm::SplitCriticalEdge, and make
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it abort on IndirectBrInst as describe in the comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85688 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:51:10 +00:00
Jim Grosbach
bcf2f2c159
Expand 64-bit logical shift right inline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85687 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:42:19 +00:00
Jim Grosbach
b4a976c304
Expand 64-bit arithmetic shift right inline
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85685 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 21:00:56 +00:00
Dan Gohman
b953c944b6
Fix a missing newline in the dwarf output code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:59:09 +00:00
Dan Gohman
0ba90f3e34
Make -print-machineinstrs more readable.
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- Be consistent when referring to MachineBasicBlocks: BB#0.
- Be consistent when referring to virtual registers: %reg1024.
- Be consistent when referring to unknown physical registers: %physreg10.
- Be consistent when referring to known physical registers: %RAX
- Be consistent when referring to register 0: %reg0
- Be consistent when printing alignments: align=16
- Print jump table contents.
- Don't print host addresses, in general.
- and various other cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85682 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:19:03 +00:00
Dan Gohman
499a9377a3
Factor out more code into addCommonCodeGenPasses. The JIT wasn't
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previously running CodePlacementOpt. Also print headers before
each dump in -print-machineinstrs mode, so that it's clear which
dump is which.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85681 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:17:39 +00:00
Chris Lattner
c1dc35094e
adjust a couple xforms to work with null bb's in BlockAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:13:24 +00:00
Chris Lattner
7d83ebcadd
Make blockaddress(@func, null) be valid, and make 'deleting a basic
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block with a blockaddress still referring to it' replace the invalid
blockaddress with a new blockaddress(@func, null) instead of a
inttoptr(1).
This changes the bitcode encoding format, and still needs codegen
support (this should produce a non-zero value, referring to the entry
block of the function would also be quite reasonable).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 20:08:37 +00:00
Benjamin Kramer
e3246fc6ab
Force triple; darwin's ASM syntax differs from linux's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85676 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 19:54:06 +00:00
Jim Grosbach
c2b879fcfe
Expand 64 bit left shift inline rather than using the libcall. For now, this
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is unconditional. Making it still use the libcall when optimizing for size
would be a good adjustment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85675 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 19:38:01 +00:00
Benjamin Kramer
823bdbc770
Add missing colons for FileCheck.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85674 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 19:22:24 +00:00
Jim Grosbach
4a26092248
Convert to FileCheck
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 19:06:53 +00:00
Jim Grosbach
58c4723662
The universal SDKROOT should only be assigned when hosted. Otherwise the
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SDKROOT can refer to the target when we're building for the host.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85672 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 18:00:10 +00:00
Chris Lattner
28f3d34a9b
add a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85671 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 17:48:31 +00:00
Dan Gohman
438b583dbd
Revert r85667. LoopUnroll currently can't call utility functions which
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auto-update the DominatorTree because it doesn't keep the DominatorTree
current while it works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85670 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 17:33:01 +00:00
Dan Gohman
dca094100b
Remove redundant code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85668 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 16:16:41 +00:00
Dan Gohman
f230d8ad15
Merge the enhancements from LoopUnroll's FoldBlockIntoPredecessor into
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MergeBlockIntoPredecessor. This makes SimplifyCFG slightly more aggressive,
and makes it unnecessary for LoopUnroll to have its own copy of this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85667 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 16:08:00 +00:00
Dan Gohman
4c7279ac72
Rename forgetLoopBackedgeTakenCount to forgetLoop, because it
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clears out more information than just the stored backedge taken count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 15:04:55 +00:00
Dan Gohman
a2aabe38ae
Replace LoopUnrollPass.cpp's custom code-size estimation code using
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the new common CodeMetrics code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85663 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:54:17 +00:00
Dan Gohman
b56c966019
Simplify this code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:46:50 +00:00
Dan Gohman
3f9432ebca
Remove an unnecessary #include.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85661 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:39:43 +00:00
Dan Gohman
13d63f2d26
Update CMakeLists for recent renames.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85660 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:38:25 +00:00
Dan Gohman
928a75f057
Rename UnrollLoop.cpp to LoopUnroll.cpp, and LoopUnroll.cpp to
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LoopUnrollPass.cpp, for consistency with other passes which are
similarly split.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85659 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:37:31 +00:00
Dan Gohman
9f476e3179
Remove CodeGenLICM. It's largely obsoleted by MachineLICM's new ability
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to unfold loop-invariant loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85657 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:35:41 +00:00
Dan Gohman
576fd76a68
Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an
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underlying alias call even for non-identified-object values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85656 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:32:25 +00:00
Dan Gohman
5b097014f2
Reapply r85634, with the bug fixed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85655 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:22:52 +00:00
Dan Gohman
75832d7d4f
When discarding SrcValue information, discard all of it so that code
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that uses this information knows to behave conservatively.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85654 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:14:04 +00:00
Dan Gohman
60d686df54
Fix 80-column violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85653 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 14:12:53 +00:00
Eric Christopher
cdfa666c30
Fix warning with gcc-4.0 and signed/unsigned.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85648 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 09:24:35 +00:00
Evan Cheng
9eda68988e
It's safe to remat t2LDRpci; Add PseudoSourceValue to load / store's to enable more machine licm. More changes coming.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85643 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 03:39:36 +00:00
Evan Cheng
a4006c6dbf
Revert 85634. It's breaking consumer-typeset (and others).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85641 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-31 01:28:06 +00:00