Evan Cheng
c8af52c898
ISD::UNDEF should be expanded recursively / iteratively.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52508 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 22:01:11 +00:00
Owen Anderson
aa0b63422a
Add a hidden -disable-pre flag for testing purposes. This should be removed
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once benchmarking is completed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52506 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 19:57:25 +00:00
Owen Anderson
5c274eebc6
PRE requires that critical edges be split.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52505 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 19:54:19 +00:00
Bill Wendling
ac151da204
Remove dead code causing a warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52502 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 18:00:44 +00:00
Dan Gohman
52d36e6f87
Use the common API for adding instructions to basic blocks instead of
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using BasicBlock::getInstList.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52500 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:53:32 +00:00
Owen Anderson
9da52dce89
Be sure to remove values from the value numbering table after we delete them.
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This fixes a failure on povray.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52499 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:53:26 +00:00
Dan Gohman
d02d917c72
Use Instruction::moveBefore instead of manipulating the instruction list
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directly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52498 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:47:47 +00:00
Dan Gohman
610c0e2b40
Avoid using BasicBlock::getInstList directly in a few places.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52497 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:37:25 +00:00
Owen Anderson
3cd8eb314a
Revert support for insertvalue and extractvalue instructions for the moment.
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GVN expects that all inputs which to an instruction fall somewhere in the value
hierarchy, which isn't true for these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52496 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:25:39 +00:00
Dan Gohman
04478e56f7
Use the transferSuccessors helper function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52495 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:22:29 +00:00
Dan Gohman
f3dc70092c
Delete dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52494 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 17:18:39 +00:00
Matthijs Kooijman
f0da2039d1
Use a CallSite to find the nth argument of a call/invoke instruction instead of
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using getOperand() directly. This makes things work with invoke instructions as
well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52489 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 08:53:24 +00:00
Duncan Sands
9954c76f2c
Fix some warnings reported by gcc-4.3. Hopefully
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this still compiles on windows - I can't test!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 08:47:31 +00:00
Evan Cheng
32a3ac7911
Missed a check.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52487 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 06:17:19 +00:00
Eli Friedman
2c8e64d3e4
Fix a bug with <8 x i16> shuffle lowering on X86 where parts of the
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shuffle could be skipped. The check is invalid because the loop index i
doesn't correspond to the element actually inserted. The correct check is
already done a few lines earlier, for whether the element is already in
the right spot, so this shouldn't have any effect on the codegen for
code that was already correct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52486 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 06:09:51 +00:00
Owen Anderson
29b039976f
Revert my last patch, which was causing regression test failures.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52485 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 05:29:34 +00:00
Evan Cheng
e00f5de361
Coalesce copy from one register class to a sub register class. e.g. X86::MOV16to16_.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 01:39:21 +00:00
Evan Cheng
1b38ec83f0
Cosmetic changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52479 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 01:21:26 +00:00
Evan Cheng
082e7c12a1
Unneeded include's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52478 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 01:21:02 +00:00
Evan Cheng
bdf34bc12b
Minor spiller tweak to unfavor reload into load/store instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52477 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 01:16:17 +00:00
Owen Anderson
6c5e561668
Insert empty slots into the instruction numbering in live intervals, so that we can more easily
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add new instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-19 00:10:49 +00:00
Owen Anderson
d34ac6e782
Add support for extractvalue and insertvalue instructions in GVN.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 21:59:00 +00:00
Owen Anderson
b230372437
Add local PRE to GVN. This only operates in cases where it would not increase code size, namely when the instantiated expression
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would only need to be created in one predecessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52471 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 21:41:49 +00:00
Argyrios Kyrtzidis
f7acf8f288
Fix the source line debug information for the Windows platform.
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According to DWARF-2 specification, the line information is provided through an offset in the .debug_line section.
Replace the label reference that is used with a section offset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52468 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 19:27:37 +00:00
Chris Lattner
6c3bfba06e
Fix the regressions on sext-misc.ll my patch yesterday caused.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52466 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 18:11:55 +00:00
Owen Anderson
bb3761c9e5
Revert r52459, which was causing an infinite loop or massive slowdown on MultiSource/Applications/SPASS, and possibly others as well.
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Please reapply once this is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 17:32:16 +00:00
Dan Gohman
e24fa64d52
Move SCEVExpander::visitAddExpr out-of-line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 16:37:11 +00:00
Dan Gohman
cfeb6a4506
Move LSR's private isZero function to a public SCEV member
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function, and make use of it in several places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 16:23:07 +00:00
Matthijs Kooijman
ca85d65277
Rewrite the DeadArgumentElimination pass, to use a more explicit tracking of
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dependencies between return values and/or arguments. Also make the handling of
arguments and return values the same.
The pass now looks properly inside returned structs, but only at the first
level (ie, not inside nested structs).
Also add a testcase for testing various variations of (multiple) dead rerturn
values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52459 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 11:12:53 +00:00
Matthijs Kooijman
c2afe89019
Reapply r52397 (make IPConstProp promote returned arguments), but fixed this
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time. Sorry for the trouble!
This time, also add a testcase, which I should have done in the first place...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52455 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 08:30:37 +00:00
Evan Cheng
359e9371b9
XOR32rr, etc. are not AsCheapAsMove, but MOV32ri, etc. are.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 08:13:07 +00:00
Matthijs Kooijman
8b0fcf38ef
Reapply r52396, it was unrelated to the breakage (that was caused by r52397, my
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commit after this).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 08:09:27 +00:00
Evan Cheng
7543e58a77
Complete support for two-address pass rematerialization. Now *almost* always a win.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52452 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 07:49:14 +00:00
Evan Cheng
625986afea
Cosmetic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52450 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 07:47:28 +00:00
Chris Lattner
0521e3cdc1
implement some simple bswap optimizations, rdar://5992453
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 04:33:20 +00:00
Chris Lattner
8114b718c9
make truncate/sext elimination capable of changing phi's. This
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implements rdar://6013816 and the testcase in Transforms/InstCombine/sext-misc.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52440 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 04:00:49 +00:00
Evan Cheng
fab8387384
Unbreak DECLARE isel in pic mode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52439 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 02:48:27 +00:00
Devang Patel
64cd658223
Preserve dominance frontier while trivially unswitching loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52438 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-18 02:16:38 +00:00
Dan Gohman
44f6a2c951
Auto-upgrade code for multiple-value return statements. This code
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isn't actually called yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52435 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 23:38:43 +00:00
Dan Gohman
80b9626ee3
In InsertValueInst's copy ctor, actually copy the operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52434 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 23:25:49 +00:00
Owen Anderson
2960ed4b85
We don't want to find dependencies within the same block in this case. It leads to incorrect results because
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we're detecting something at or after the call we're querying on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 22:27:06 +00:00
Dan Gohman
b79bf1966d
Implement the ExtractValueInst::getIndexedType that accepts one
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index value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52432 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 21:07:55 +00:00
Evan Cheng
f26e8557de
Live-through live interval is [mbb start, mbb end+1].
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52431 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 20:13:36 +00:00
Evan Cheng
739583be56
When extending a liveinterval by commuting, don't throw away the live ranges that are not affected.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 20:11:16 +00:00
Ted Kremenek
8d6a58c5d5
Consistently set "Buckets[NumBuckets] = reinterpret_cast<void*>(-1)" throughout FoldingSet.cpp.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52425 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 19:12:43 +00:00
Owen Anderson
26bb50ab48
Add an insertBefore method for attaching previously unattached instructions,
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such as those created by clone(), to a basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52424 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 18:29:27 +00:00
Evan Cheng
95350b9cd2
It's not safe to remove SUBREG_TO_REG that looks like identity copies, e.g. movl %eax, %eax on x86-64 actually does a zero-extend.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52421 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:59:16 +00:00
Anton Korobeynikov
0b725f17e0
Add one more 'magic' define :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52420 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:57:43 +00:00
Anton Korobeynikov
7a17ff7b3f
Unbreak non-PPC builds
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52419 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:38:31 +00:00
Anton Korobeynikov
210539ebc4
Provide generic hooks for icache invalidation. Add PPC implementation.
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Patch by Gary Benson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52418 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:30:05 +00:00
Chris Lattner
fc329f4fa1
revert recent patch which is causing widespread breakage.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52415 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 17:06:43 +00:00
Evan Cheng
1b088f3310
Don't forget to initialize SymbolSearchingDisabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52414 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 16:49:02 +00:00
Duncan Sands
34b176a181
Fix typo that changed the logic to something wrong.
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Spotted by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52411 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 15:55:30 +00:00
Duncan Sands
69b01e92a2
Split type expansion into ExpandInteger and ExpandFloat
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rather than bundling them together. Rename FloatToInt
to PromoteFloat (better, if not perfect). Reorganize
files by types rather than by operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 14:27:01 +00:00
Matthijs Kooijman
2fbabf6e6d
Learn IPConstProp to propagate arguments that are directly returned. Strictly
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speaking these are not constant values. However, when a function always returns
one of its arguments, then from the point of view of each caller the return
value is constant (or at least a known value) and can be replaced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52397 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 12:20:24 +00:00
Matthijs Kooijman
906e423724
Learn IPConstProp to look at individual return values and propagate them
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individually.
Also learn IPConstProp how returning first class aggregates work, in addition
to old style multiple return instructions.
Modify the return-constants testscase to confirm this behaviour.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52396 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 12:02:52 +00:00
Matthijs Kooijman
3faf9df08f
Use a SmallVector instead of an array, since auto_ptr doesn't handle arrays
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properly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 08:24:37 +00:00
Chris Lattner
ead0d88ad7
add a new -enable-value-prop flag for llcbeta, that enables propagation
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of value info (sign/zero ext info) from one MBB to another. This doesn't
handle much right now because of two limitations:
1) only handles zext/sext, not random bit propagation (no assert exists
for this)
2) doesn't handle phis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 06:09:18 +00:00
Duncan Sands
a47c6c3703
Fix spelling.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 03:24:13 +00:00
Evan Cheng
851bc04533
Rather than avoiding to wrap ISD::DECLARE GV operand in X86ISD::Wrapper, simply handle it at dagisel time with x86 specific isel code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52377 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-17 02:01:22 +00:00
Chris Lattner
fc196f9ee9
Add a missing ~ (dtor became ctor) which caused crashes on a bunch of stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52374 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 23:06:51 +00:00
Evan Cheng
c3de802ad9
Do not issue identity copies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 22:52:53 +00:00
Dan Gohman
9b93dd1f1a
Refine the change in r52258 for avoiding use-before-def conditions
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when changing the stride of a comparison so that it's slightly
more precise, by having it scan the instruction list to determine
if there is a use of the condition after the point where the
condition will be inserted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 22:34:15 +00:00
Chris Lattner
d34ff14358
switch TypeHasCycleThroughItself from using an std::set to using a SmallPtrSet,
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this speeds up the linking testcase in PR1860 by 44% (.379 -> 0.263)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:20:58 +00:00
Chris Lattner
a4477f9b31
stop making PATypeHolder's so crazily.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52364 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:17:12 +00:00
Evan Cheng
4e444436f2
Horizontal-add instructions are not commutative.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52363 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:16:24 +00:00
Evan Cheng
72b7b098c7
Switch over to SetVector to ensure same order of iterations do not vary across runs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:08:17 +00:00
Chris Lattner
62a81a1eba
use a real associative container for type association instead of using
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a vector with a linear search. This speeds up the linking testcase
in PR1860 from 0.965s to 0.385s on my system.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 21:00:18 +00:00
Evan Cheng
35b9a7790e
mpsadbw is commutable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52352 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 20:25:59 +00:00
Chris Lattner
56539659eb
bail out sooner if we have two concrete but different types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52351 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 20:03:01 +00:00
Chris Lattner
9ddf2c898f
simplify some code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52350 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 19:55:40 +00:00
Chris Lattner
849dcd928a
Apply a patch from Nathan Keynes, which speeds up llvm-link on
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the testcases in PR1860 from taking more than 1 hour (when I killed it)
to taking 1s.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52347 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 19:48:08 +00:00
Owen Anderson
31ec841be1
Remove special case handling of empty MBBs now that we assign indices to them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52345 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 19:32:40 +00:00
Chris Lattner
f6f4f7a149
handle vectors. Any integers that got here would necessarily be different already.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52341 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 18:27:53 +00:00
Chris Lattner
bc1c82a0f7
Simplify ResolveTypes by pulling the null case out into the one
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client that cares and simplifying its control flow.
Remove the DestST argument to ResolveTypes and RecursiveResolveTypes*
which are dead now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52340 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 18:19:05 +00:00
Evan Cheng
69d5053f9c
Iterating over SmallPtrSet is not deterministic.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52339 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 18:17:09 +00:00
Chris Lattner
371ca83d8b
simplify RecursiveResolveTypes and ResolveTypes by pulling the naming out of
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ResolveTypes into the one place that needs it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52338 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 18:11:40 +00:00
Chris Lattner
e846db6675
Add a new flag that disables symbol lookup with dlsym when set. This allows
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a JIT client to completely control symbol lookup with the LazyFunctionCreator
interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52335 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 17:44:14 +00:00
Chris Lattner
16228c08b4
Add support for icache invalidation on non-darwin ppc systems.
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Patch by Gary Benson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 17:04:06 +00:00
Owen Anderson
1fbb4545d4
Re-enable empty block indexing by default, since it doesn't seem to have any
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impact on code quality or compile time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 16:58:24 +00:00
Matthijs Kooijman
0a9aaf46be
Make BuildSubAggregate use FindInsertedElement again to prevent it from
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inserting extractvalues. In particular, this prevents the insertion of
extractvalues that can't be folded away later. Also add an example of when this
stuff is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 14:13:46 +00:00
Matthijs Kooijman
9772891219
Make the InsertBefore argument to FindInsertedValue optional, so you can find an inserted value without modifying the code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52319 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 13:28:31 +00:00
Matthijs Kooijman
0a7413dad8
Pass around Instruction* instead of Instruction& in FindInsertedValue and friends.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52318 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 13:13:08 +00:00
Matthijs Kooijman
710eb236e6
80 column fixes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52316 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 12:57:37 +00:00
Matthijs Kooijman
b23d5adbc8
Move FindScalarValue from InstructionCombining.cpp to ValueTracking.cpp. While
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I'm at it, rename it to FindInsertedValue.
The only functional change is that newly created instructions are no longer
added to instcombine's worklist, but that is not really necessary anyway (and
I'll commit some improvements next that will completely remove the need).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 12:48:21 +00:00
Argyrios Kyrtzidis
4bd3225088
Minor comment fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 10:14:09 +00:00
Duncan Sands
ad205a7687
Allow these transforms for types like i256 while
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still excluding types like i1 (not byte sized)
and i120 (loading an i120 requires loading an i64,
an i32, an i16 and an i8, which is expensive).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52310 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 08:14:38 +00:00
Evan Cheng
7a15391c8d
Fix read after free found by valgrind.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52309 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 07:34:17 +00:00
Evan Cheng
58dcb0e0cd
Add option to commuteInstruction() which forces it to create a new (commuted) instruction.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 07:33:11 +00:00
Owen Anderson
3557801289
Make indexing empty basic blocks an option for the moment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52306 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 07:10:49 +00:00
Chris Lattner
25df20f169
simplify some code by using a helper function. This really really
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wants a 'nocapture' predicate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52304 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:38:26 +00:00
Chris Lattner
defa1c8034
move a bunch of predicates up into their own section
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in this file, no other changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52303 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:30:22 +00:00
Chris Lattner
e7275794d3
Other parts of this code treat noalias arguments as objects for
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the purposes of escape analysis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52302 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:28:01 +00:00
Chris Lattner
845f0d2f0f
If we are checking to see if the result of a call aliases a
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pointer derived from a local allocation, if the local allocation
never escapes, the pointers can't alias. This implements PR2436
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52301 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:19:11 +00:00
Owen Anderson
8892b6f307
Assign indices to empty basic blocks. This will be necessary for StrongPHIElimination in the near future.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52300 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:18:41 +00:00
Chris Lattner
a413960a48
Refactor basicaa's main alias function somethin' fierce.
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This fixes several minor bugs (such as returning noalias
for comparisons between external weak functions an null) but
is mostly a cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52299 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 06:10:11 +00:00
Chris Lattner
9e4ff94ff7
Switch from generating the int128 typedefs based on targetdata to generating
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them based on the end-compiler's capabilities. This fixes PR2453
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52297 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 04:25:29 +00:00
Chris Lattner
077707ccc0
Fix the crash on SimplifyLibCalls/2005-05-20-sprintf-crash.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52295 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 04:10:21 +00:00
Chris Lattner
6520aa0f5e
fix pr2460
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52294 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-16 04:02:40 +00:00
Duncan Sands
ec87aa87fe
The transforms in visitEXTRACT_VECTOR_ELT are
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not valid if the load is volatile. Hopefully
all wrong DAG combiner transforms of volatile
loads and stores have now been caught.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52293 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-15 20:12:31 +00:00