Gabor Greif
8811080a65
fcntl.h is pretty standard on unix (without the sys/)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50475 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 08:53:22 +00:00
Owen Anderson
5023aa58ca
This condition got inverted accidentally.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50473 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 07:16:33 +00:00
Chris Lattner
69ea9d2308
move lowering of llvm.memset -> store from simplify libcalls
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to instcombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50472 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 06:39:11 +00:00
Chris Lattner
12e6d20059
add a method for comparing to see if a value has a specified name.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50465 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 03:55:40 +00:00
Chris Lattner
ea8650cddf
use string length computation to generalize several xforms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50464 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 03:07:53 +00:00
Dale Johannesen
21d972ad04
Add comments for previous patch as requested.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50463 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:43:29 +00:00
Scott Michel
203b2d6eed
Bug fixes and updates for CellSPU, syncing up with trunk. Most notable
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fixes are target-specific lowering of frame indices, fix constants generated
for the FSMBI instruction, and fixing SPUTargetLowering::computeMaskedBitsFor-
TargetNode().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50462 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:30:08 +00:00
Scott Michel
82747a5484
Fix custom target lowering for zero/any/sign_extend: make sure that
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DAG.UpdateNodeOperands() is called before (not after) the call to
TLI.LowerOperation().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50461 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-30 00:26:38 +00:00
Dale Johannesen
7b251e0474
Make eh_frame objects by 8-byte aligned on 64-bit
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targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50451 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 22:58:20 +00:00
Owen Anderson
02e9988020
Revert r50441. The original code was correct. Add some more comments so that I don't make the same mistake in the future.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50446 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:51:00 +00:00
Owen Anderson
9dcace3caf
Fix a bug in memcpyopt where the memcpy-memcpy transform was never being applied because
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we were checking for it in the wrong order. This caused a miscompilation because the
return slot optimization assumes that the call it is dealing with is NOT a memcpy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:26:06 +00:00
Owen Anderson
7b6fafaa8d
We should be returning true here since we've changed the function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50442 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 21:02:46 +00:00
Owen Anderson
9862f31533
A lot of cleanups and documentation improvements, as well as a few corner case fixes. Most
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of this was suggested by Chris.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 20:59:33 +00:00
Owen Anderson
0396cd33ca
Rename DeadLoopElimination to LoopDeletion, part 2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50437 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 20:06:54 +00:00
Owen Anderson
d6864fee97
Rename DeadLoopElimination to LoopDeletion, part one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50436 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 19:58:07 +00:00
Anton Korobeynikov
966e7997b5
Don't do stupid things: doInitialization(Module&) is not applicable to ModulePass :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50433 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 18:16:22 +00:00
Chris Lattner
40700fe683
don't eliminate load from volatile value on paths where the load is dead.
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This fixes the second half of PR2262
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:28:22 +00:00
Chris Lattner
54545ac023
fix a subtle volatile handling bug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 17:13:43 +00:00
Roman Levenstein
a0201d5204
Use std::set instead of std::priority_queue for the RegReductionPriorityQueue.
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This removes the existing bottleneck related to the removal of elements from
the middle of the queue.
Also fixes a subtle bug in ScheduleDAGRRList::CapturePred:
It was updating the state of the SUnit before removing it. As a result, the
comparison operators were working incorrectly and this SUnit could not be removed
from the queue properly.
Reviewed by Evan and Dan. Approved by Dan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50412 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 09:07:59 +00:00
Chris Lattner
5b222d748a
Implement more aggressive support for analyzing string length. This
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generalizes the previous code to handle the case when the string is not
an immediate to the strlen call (for example, crazy stuff like
strlen(c ? "foo" : "bart"+1) -> 3). This implements
gcc.c-torture/execute/builtins/strlen-2.c. I will generalize other
cases in simplifylibcalls to use the same routine later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50408 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 06:56:02 +00:00
Owen Anderson
5f8b344255
Clarify what we mean by a dead loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50406 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 06:34:55 +00:00
Chris Lattner
cea1fdd174
don't delete the last store to an alloca if the store is volatile.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50390 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:58:38 +00:00
Chris Lattner
3fb2968f2f
make the vector conversion magic handle multiple results.
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We now compile test2/test3 to:
_test2:
## InlineAsm Start
set %xmm0, %xmm1
## InlineAsm End
addps %xmm1, %xmm0
ret
_test3:
## InlineAsm Start
set %xmm0, %xmm1
## InlineAsm End
paddd %xmm1, %xmm0
ret
as expected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50389 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:48:56 +00:00
Chris Lattner
41f6259a4b
add support for multiple return values in inline asm. This is a step
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towards PR2094. It now compiles the attached .ll file to:
_sad16_sse2:
movslq %ecx, %rax
## InlineAsm Start
%ecx %rdx %rax %rax %r8d %rdx %rsi
## InlineAsm End
## InlineAsm Start
set %eax
## InlineAsm End
ret
which is pretty decent for a 3 output, 4 input asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50386 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 04:29:54 +00:00
Evan Cheng
8509fcf8eb
Another extract_subreg coalescing bug.
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e.g.
vr1024<2> extract_subreg vr1025, 2
If vr1024 do not have the same register class as vr1025, it's not safe to coalesce this away. For example, vr1024 might be a GPR32 while vr1025 might be a GPR64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 01:41:44 +00:00
Owen Anderson
e54cfdb32a
Add some more comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:45:15 +00:00
Owen Anderson
d3d5b888d9
Remove debugging code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:39:24 +00:00
Owen Anderson
0ff7708a5b
Add dead loop elimination, which removes dead loops for which we can compute
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the trip count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-29 00:38:34 +00:00
Evan Cheng
33bf38ad88
Fix a bug in RegsForValue::getCopyToRegs() that causes cyclical scheduling units. If it's creating multiple CopyToReg nodes that are "flagged" together, it should not create a TokenFactor for it's chain outputs:
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c1, f1 = CopyToReg
c2, f2 = CopyToReg
c3 = TokenFactor c1, c2
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= user c3, ..., f2
Now that the two CopyToReg's and the user are "flagged" together. They effectively forms a single scheduling unit. The TokenFactor is now both an operand and a successor of the Flagged nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50376 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 22:07:13 +00:00
Dan Gohman
3e2dda63d0
Fix a pointer-arithmetic bug that caused 64-bit host pointer values to
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be truncated to 32 bits. This fixes the recent Benchmarks/McCat/09-vor
regression on x86-64, among other things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50372 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 20:25:15 +00:00
Dan Gohman
00acf97feb
Fix DSE to not eliminate volatile loads with no uses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50370 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 19:51:27 +00:00
Dan Gohman
187db7b950
Evan pointed out that folding sext to zext may not be correct
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if the zext is not legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50368 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:47:17 +00:00
Dan Gohman
ebc3a3a3b2
Delete an unused constructor.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50367 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:28:49 +00:00
Dan Gohman
10a6b7ab65
Add a comment to CreateRegForValue that clarifies the handling of
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aggregate types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50366 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:19:43 +00:00
Dan Gohman
0fe00906c8
Rewrite the comments for RegsForValue and its members, and
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reorder some of the members for clarity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 18:10:39 +00:00
Ted Kremenek
c9715624fa
Bug fix in BumpPtrAllocator: don't assume that all objects have the same alignment. "Bump" of the pointer for the next allocated object to be of the specified alignment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50362 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:58:07 +00:00
Dan Gohman
b20d4f8d49
Don't call size() on each iteration of the loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50361 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:42:03 +00:00
Gordon Henriksen
e2435da8ab
Expose parameter attributes via C bindings.
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Patch by Anders Johnsen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50360 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:37:06 +00:00
Dan Gohman
1f13c686df
Fix the SVOffset values for loads and stores produced by
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memcpy/memset expansion. It was a bug for the SVOffset value
to be used in the actual address calculations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:15:20 +00:00
Dan Gohman
23e8b71526
Teach InstCombine's ComputeMaskedBits what SelectionDAG's
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ComputeMaskedBits knows about cttz, ctlz, and ctpop. Teach
SelectionDAG's ComputeMaskedBits what InstCombine's knows
about SRem. And teach them both some things about high bits
in Mul, UDiv, URem, and Sub. This allows instcombine and
dagcombine to eliminate sign-extension operations in
several new cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50358 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 17:02:21 +00:00
Dan Gohman
8f0ad582e8
Teach DAGCombine to convert (sext x) to (zext x) when the
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sign-bit of x is known to be zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 16:58:24 +00:00
Mikhail Glushenkov
beb4d8293d
Add support for response files to the CommandLine library.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50355 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 16:44:25 +00:00
Anton Korobeynikov
2810d675f8
Fix FP return for Win64 ABI
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 07:40:07 +00:00
Chris Lattner
6833b0601b
Another collection of random cleanups. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50341 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 07:16:35 +00:00
Chris Lattner
b606dba13b
Remove the SmallVector ctor that converts from a SmallVectorImpl. This
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conversion open the door for many nasty implicit conversion issues, and
can be easily solved by initializing with (V.begin(), V.end()) when
needed.
This patch includes many small cleanups for sdisel also.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50340 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 06:44:42 +00:00
Chris Lattner
8eaff0449c
switch RegsForValue::Regs to be a SmallVector to avoid
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heap thrash on tiny (usually single-element) vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50335 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 06:02:19 +00:00
Chris Lattner
ffba5821ee
Fix PR2256, yet another miscompilation in simplifycfg of i
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multiple return values.
Bill, please pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50332 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-28 00:19:07 +00:00
Chris Lattner
f899fce0c0
move static function out of anon namespace, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50330 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:48:12 +00:00
Chris Lattner
acf8b01fd6
Another step to getting multiple result inline asm to work.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50329 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:44:28 +00:00
Chris Lattner
96bb622646
Allow asms to return multiple results by value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:33:55 +00:00
Anton Korobeynikov
998a5bcc80
Properly lower vararg's FORMAL_ARGUMENTS node on win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50325 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 23:15:03 +00:00
Anton Korobeynikov
7255193b4f
Handle fp80 for win64
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50324 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 22:54:09 +00:00
Chris Lattner
24e1a9d311
typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50316 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 01:49:46 +00:00
Chris Lattner
5a09690446
Implement a signficant optimization for inline asm:
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When choosing between constraints with multiple options,
like "ir", test to see if we can use the 'i' constraint and
go with that if possible. This produces more optimal ASM in
all cases (sparing a register and an instruction to load it),
and fixes inline asm like this:
void test () {
asm volatile (" %c0 %1 " : : "imr" (42), "imr"(14));
}
Previously we would dump "42" into a memory location (which
is ok for the 'm' constraint) which would cause a problem
because the 'c' modifier is not valid on memory operands.
Isn't it great how inline asm turns 'missed optimization'
into 'compile failed'??
Incidentally, this was the todo in
PowerPC/2007-04-24-InlineAsm-I-Modifier.ll
Please do NOT pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50315 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:37:18 +00:00
Chris Lattner
507ffd2423
isa+cast -> dyn_cast
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50314 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:16:18 +00:00
Chris Lattner
4376fea663
Move a bunch of inline asm code out of line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50313 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-27 00:09:47 +00:00
Chris Lattner
5e764233f3
A few inline asm cleanups:
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- Make targetlowering.h fit in 80 cols.
- Make LowerAsmOperandForConstraint const.
- Make lowerXConstraint -> LowerXConstraint
- Make LowerXConstraint return a const char* instead of taking a string byref.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50312 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 23:02:14 +00:00
Chris Lattner
2ba1c06d48
no need to implement this method and just have it call
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the default impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 22:59:59 +00:00
Chris Lattner
998182b380
When SRoA'ing a global variable, make sure the new globals get the
...
appropriate alignment. This fixes a miscompilation of 252.eon on
x86-64 (rdar://5891920).
Bill, please pull this into Tak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-26 07:40:11 +00:00
Dale Johannesen
da30ccbe9a
change comments per review
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50300 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 21:16:07 +00:00
Evan Cheng
44c0fd17e1
Extract the lower 64-bit if a MMX value is passed in a XMM register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50292 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:13:28 +00:00
Evan Cheng
082948df9b
Fix illegal MMX_MOVDQ2Qrr pattern. vector_extract result must be a scalar value.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50291 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 20:12:46 +00:00
Evan Cheng
10e864276b
Special handling for MMX values being passed in either GPR64 or lower 64-bits of XMM registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50289 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 19:11:04 +00:00
Dan Gohman
23ce502cb7
Remove the code from CodeGenPrepare that moved getresult instructions
...
to the block that defines their operands. This doesn't work in the
case that the operand is an invoke, because invoke is a terminator
and must be the last instruction in a block.
Replace it with support in SelectionDAGISel for copying struct values
into sequences of virtual registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:27:55 +00:00
Evan Cheng
80f5404e18
Fix MMX_MOVQ2DQrr pattern. It's illegal to do a bitconvert from a smaller type to a larger one.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:19:54 +00:00
Nate Begeman
6867991d54
Pull the code to perform an INSERT_VECTOR_ELT in memory out into its own
...
function, and then use it to fix a bug in SplitVectorOp that expected inserts
to always have constant insertion indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50273 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 18:07:40 +00:00
Nate Begeman
4182db4327
Feedback from chris
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50271 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:45:52 +00:00
Chris Lattner
7c400dcb03
add a note
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50267 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:25:00 +00:00
Evan Cheng
682f81032f
80 col violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 17:21:40 +00:00
Nick Lewycky
280a6e607d
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
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r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50265 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 16:53:59 +00:00
Evan Cheng
419ace9bda
Not checking for intrinsics which do not have a chain operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50260 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:55:28 +00:00
Evan Cheng
cdda25d22b
- Switch from std::set to SmallPtrSet.
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- Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50259 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 08:22:20 +00:00
Evan Cheng
ee472b1081
MMX argument passing fixes:
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On Darwin / Linux x86-32, v8i8, v4i16, v2i32 values are passed in MM[0-2].
On Darwin / Linux x86-32, v1i64 values are passed in memory.
On Darwin x86-64, v8i8, v4i16, v2i32 values are passed in XMM[0-7].
On Darwin x86-64, v1i64 values are passed in 64-bit GPRs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 07:56:45 +00:00
Nate Begeman
4be30ac0e2
Teach the PruningFunctionCloner how to look through loads with
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ConstantExpression GEPs pointing into constant globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 06:37:06 +00:00
Chris Lattner
25453ea49e
Loosen up an assertion to allow intrinsics. I really have no
...
idea what this code (findNonImmUse) does, so I'm only guessing
that this is the right thing. It would be really really nice
if this had comments and perhaps switched to SmallPtrSet
(hint hint) :)
This fixes rdar://5886601, a crash on gcc.target/i386/sse4_1-pblendw.c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 05:13:01 +00:00
Chris Lattner
eede65ce6c
Don't infininitely thread branches when a threaded edge
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goes back to the block, e.g.:
Threading edge through bool from 'bb37.us.thread3829' to 'bb37.us' with cost: 1, across block:
bb37.us: ; preds = %bb37.us.thread3829, %bb37.us, %bb33
%D1361.1.us = phi i32 [ %tmp36, %bb33 ], [ %D1361.1.us, %bb37.us ], [ 0, %bb37.us.thread3829 ] ; <i32> [#uses=2]
%tmp39.us = icmp eq i32 %D1361.1.us, 0 ; <i1> [#uses=1]
br i1 %tmp39.us, label %bb37.us, label %bb42.us
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 04:12:29 +00:00
Gordon Henriksen
2566388bc4
PR2202: LLVMCreateInterpreter creates a JIT
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Applying fix by Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 02:52:30 +00:00
Evan Cheng
2749c72f30
Fix bug in x86 memcpy / memset lowering. If there are trailing bytes not handled by rep instructions, a new memcpy / memset is introduced for them. However, since source / destination addresses are already adjusted, their offsets should be zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-25 00:26:43 +00:00
Evan Cheng
79328661fa
Adjust inline cost computation to be less aggressive.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50222 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 18:42:47 +00:00
Evan Cheng
a971dbdde2
- Check if a register is livein before removing it. It may have already been removed.
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- Do not iterate over SmallPtrSet, the order of iteration is not deterministic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50209 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 09:06:33 +00:00
Chris Lattner
eb5f4092d9
code restructuring, not functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50203 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:21:50 +00:00
Chris Lattner
7cb22ecf22
Don't replace multiple result of calls with undef,
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sccp tracks getresult values, not call values in this
case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50202 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:19:54 +00:00
Chris Lattner
f4023a1ef6
code cleanup, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50201 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:16:28 +00:00
Chris Lattner
c9e495c534
Split some code out of the main SimplifyCFG loop into its own function.
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Fix said code to handle merging return instructions together correctly
when handling multiple return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50199 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24 00:01:19 +00:00
Dan Gohman
3c02aca238
Make these variables static.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 23:15:23 +00:00
Anton Korobeynikov
0d9e02cfd6
Drop dead includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:44:03 +00:00
Anton Korobeynikov
8d3e74ed49
Adjust option names for C++ backend
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:37:03 +00:00
Anton Korobeynikov
5027652b8a
First step of implementing PR1538: move llvm2cpp logic to new 'target'
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 22:29:24 +00:00
Dan Gohman
7661279ae0
Initial CBE support for multiple return values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 21:49:29 +00:00
Chris Lattner
80b8f5dd6b
tighten up verifier checks which missed cases where
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return instrs operands didn't match up with function results.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50182 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:33:41 +00:00
Dan Gohman
67780f108c
Use isa instead of dyn_cast.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50181 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:25:16 +00:00
Dan Gohman
3dc34f682d
Add support to codegen for getresult instructions with undef operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50180 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:21:29 +00:00
Devang Patel
6829157f49
Check type instead of no. of operands.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:18:29 +00:00
Dan Gohman
9ac0ac5675
Allow llvm-as to parse a getresult with an undef operand.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50175 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 20:11:27 +00:00
Dale Johannesen
1f530a59f7
Rewrite previous patch to suit Chris's preference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50174 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:34:37 +00:00
Anton Korobeynikov
b013f5094c
Unbreak JIT
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50173 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:26:03 +00:00
Anton Korobeynikov
941ff5818b
Fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50169 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:24:25 +00:00
Anton Korobeynikov
dc28bd43d3
Only allow increase of max alignment value
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50168 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:50 +00:00
Anton Korobeynikov
d52bdaff0c
Be over-conservative: scan for all used virtual registers and calculate maximal stack alignment in assumption, that there will be spill of vector register.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50167 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:30 +00:00
Anton Korobeynikov
856914fe00
Add X86 Maximal Stack Alignment Calculator Pass before RA
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:23:05 +00:00
Anton Korobeynikov
769b481e9f
Add facility for pre-RA passes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50165 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:22:28 +00:00
Anton Korobeynikov
aadc780a56
Use precomputed value, if any
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50164 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:50 +00:00
Anton Korobeynikov
2c430cbf03
Do proper book-keeping of offsets and prologue/epilogue code for stack realignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:27 +00:00
Anton Korobeynikov
8e91ec5e29
If stack realignment is used - incoming args will use EBP as base register and locals - ESP
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:21:02 +00:00
Anton Korobeynikov
b51dce3013
Eastimate required stack alignment early, so we can decide, whether we will need frame pointer or not
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50161 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:20:17 +00:00
Anton Korobeynikov
874384e20f
Cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50160 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:19:47 +00:00
Anton Korobeynikov
d1c133a051
Cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50159 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:19:23 +00:00
Anton Korobeynikov
82751e3eda
Simplify
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50158 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:36 +00:00
Anton Korobeynikov
45709ae09b
Make stack alignment options global for all targets
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50157 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:18:10 +00:00
Anton Korobeynikov
cfcd20e7be
Provide option for enabling-disabling stack realignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50156 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:17:11 +00:00
Anton Korobeynikov
35410a493b
Disable stack realignment for functions with dynamic-sized alloca's
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50155 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:43 +00:00
Anton Korobeynikov
890fe888be
Provide ABI-correct stack alignment
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:16:16 +00:00
Anton Korobeynikov
9bbbea568c
Provide convenient helpers for some operations
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50153 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:48 +00:00
Anton Korobeynikov
e201190eb7
Whitespace cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50152 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 18:15:11 +00:00
Chris Lattner
4af6ad3789
simplify code for propagation of constant arguments into
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callees.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 06:16:27 +00:00
Chris Lattner
e9625c6c88
Fix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
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fix read after free bug (PR2238).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50141 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:59:23 +00:00
Chris Lattner
c6ee00b8ee
Rewrite multiple return value handling in SCCP. Before, the -sccp pass
...
would turn every getresult instruction into undef. This helps with
rdar://5778210
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50140 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:38:20 +00:00
Chris Lattner
a925a14698
regenerate
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:37:08 +00:00
Chris Lattner
f7dedf2d85
Validate that the result of a function type is valid using shared
...
logic with vmcore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50138 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:36:58 +00:00
Chris Lattner
d52b62ae05
Enforce that multiple return values have to have at least one result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50137 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 05:36:34 +00:00
Chris Lattner
42369b7e4b
Verify that the operand of a getresult instruction is a
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call/invoke or undef.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 04:06:15 +00:00
Dale Johannesen
63e7eb4e12
Do not change the type of a ByVal argument to a
...
type of a different size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 01:03:05 +00:00
Evan Cheng
f30752cbcc
Don't do: "(X & 4) >> 1 == 2 --> (X & 4) == 4" if there are more than one uses of the shift result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50118 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23 00:38:06 +00:00
Chris Lattner
a5ddb59a13
Start doing the significantly useful part of jump threading: handle cases
...
where a comparison has a phi input and that phi is a constant. For example,
stuff like:
Threading edge through bool from 'bb2149' to 'bb2231' with cost: 1, across block:
bb2237: ; preds = %bb2231, %bb2149
%tmp2328.rle = phi i32 [ %tmp2232, %bb2231 ], [ %tmp2232439, %bb2149 ] ; <i32> [#uses=2]
%done.0 = phi i32 [ %done.2, %bb2231 ], [ 0, %bb2149 ] ; <i32> [#uses=1]
%tmp2239 = icmp eq i32 %done.0, 0 ; <i1> [#uses=1]
br i1 %tmp2239, label %bb2231, label %bb2327
or
bb38.i298: ; preds = %bb33.i295, %bb1693
%tmp39.i296.rle = phi %struct.ibox* [ null, %bb1693 ], [ %tmp39.i296.rle1109, %bb33.i295 ] ; <%struct.ibox*> [#uses=2]
%minspan.1.i291.reg2mem.1 = phi i32 [ 32000, %bb1693 ], [ %minspan.0.i288, %bb33.i295 ] ; <i32> [#uses=1]
%tmp40.i297 = icmp eq %struct.ibox* %tmp39.i296.rle, null ; <i1> [#uses=1]
br i1 %tmp40.i297, label %implfeeds.exit311, label %bb43.i301
This triggers thousands of times in spec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50110 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 21:40:39 +00:00
Chris Lattner
ae65b3c791
Dig through multiple levels of AND to thread jumps if needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 20:46:09 +00:00
Chris Lattner
6bf77500c6
Teach jump threading to thread through blocks like:
...
br (and X, phi(Y, Z, false)), label L1, label L2
This triggers once on 252.eon and 6 times on 176.gcc. Blocks
in question often look like this:
bb262: ; preds = %bb261, %bb248
%iftmp.251.0 = phi i1 [ true, %bb261 ], [ false, %bb248 ] ; <i1> [#uses=4]
%tmp270 = icmp eq %struct.rtx_def* %tmp.0.i, null ; <i1> [#uses=1]
%bothcond = or i1 %iftmp.251.0, %tmp270 ; <i1> [#uses=1]
br i1 %bothcond, label %bb288, label %bb273
In this case, it is clear that it doesn't matter if tmp.0.i is null when coming from bb261. When coming from bb248, it is all that matters.
Another random example:
check_asm_operands.exit: ; preds = %check_asm_operands.exit.thr_comm, %bb30.i, %bb12.i, %bb6.i413
%tmp.0.i420 = phi i1 [ true, %bb6.i413 ], [ true, %bb12.i ], [ true, %bb30.i ], [ false, %check_asm_operands.exit.thr_comm ; <i1> [#uses=1]
call void @llvm.stackrestore( i8* %savedstack ) nounwind
%tmp4389 = icmp eq i32 %added_sets_1.0, 0 ; <i1> [#uses=1]
%tmp4394 = icmp eq i32 %added_sets_2.0, 0 ; <i1> [#uses=1]
%bothcond80 = and i1 %tmp4389, %tmp4394 ; <i1> [#uses=1]
%bothcond81 = and i1 %bothcond80, %tmp.0.i420 ; <i1> [#uses=1]
br i1 %bothcond81, label %bb4398, label %bb4397
Here is the case from 252.eon:
bb290.i.i: ; preds = %bb23.i57.i.i, %bb8.i39.i.i, %bb100.i.i, %bb100.i.i, %bb85.i.i110
%myEOF.1.i.i = phi i1 [ true, %bb100.i.i ], [ true, %bb100.i.i ], [ true, %bb85.i.i110 ], [ true, %bb8.i39.i.i ], [ false, %bb23.i57.i.i ] ; <i1> [#uses=2]
%i.4.i.i = phi i32 [ %i.1.i.i, %bb85.i.i110 ], [ %i.0.i.i, %bb100.i.i ], [ %i.0.i.i, %bb100.i.i ], [ %i.3.i.i, %bb8.i39.i.i ], [ %i.3.i.i, %bb23.i57.i.i ] ; <i32> [#uses=3]
%tmp292.i.i = load i8* %tmp16.i.i100, align 1 ; <i8> [#uses=1]
%tmp293.not.i.i = icmp ne i8 %tmp292.i.i, 0 ; <i1> [#uses=1]
%bothcond.i.i = and i1 %tmp293.not.i.i, %myEOF.1.i.i ; <i1> [#uses=1]
br i1 %bothcond.i.i, label %bb202.i.i, label %bb301.i.i
Factoring out 3 common predecessors.
On the path from any blocks other than bb23.i57.i.i, the load and compare
are dead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 07:05:46 +00:00
Chris Lattner
d38c14e6ed
refactor some code, no functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 06:36:15 +00:00
Chris Lattner
9d4b94d3e1
remove dead code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50080 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 03:21:48 +00:00
Chris Lattner
10c0d9179e
optimize "p != gep p, ..." better. This allows us to compile
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getelementptr-seteq.ll into:
define i1 @test(i64 %X, %S* %P) {
%C = icmp eq i64 %X, -1 ; <i1> [#uses=1]
ret i1 %C
}
instead of:
define i1 @test(i64 %X, %S* %P) {
%A.idx.mask = and i64 %X, 4611686018427387903 ; <i64> [#uses=1]
%C = icmp eq i64 %A.idx.mask, 4611686018427387903 ; <i1> [#uses=1]
ret i1 %C
}
And fixes the second half of PR2235. This speeds up the insertion sort
case by 45%, from 1.12s to 0.77s. In practice, this will significantly
speed up for loops structured like:
for (double *P = Base + N; P != Base; --P)
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Which happens frequently for C++ iterators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50079 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 02:53:33 +00:00
Chris Lattner
eb411291fa
more fallout from Nicholas' asmprinter patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50078 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-22 02:45:44 +00:00
Dan Gohman
61a9213440
Implement an x86-64 ABI detail of passing structs by hidden first
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argument. The x86-64 ABI requires the incoming value of %rdi to
be copied to %rax on exit from a function that is returning a
large C struct.
Also, add a README-X86-64 entry detailing the missed optimization
opportunity and proposing an alternative approach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 23:59:07 +00:00
Dan Gohman
639cdc210b
Fix an out-of-bounds access in -view-sunit-dags in the case of an
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empty ScheduleDAG.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50054 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 20:07:30 +00:00
Dan Gohman
0416b0a26d
Fix the encoding of the MMX movd that moves from MMX to 64-bit GPR.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50053 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 19:52:29 +00:00
Dan Gohman
92c7b65c91
Fix the way AliasSet::print prints "may alias".
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50051 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 19:48:48 +00:00
Chris Lattner
037c781de7
fix grammar-o, thanks to Duncan for noticing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50047 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 18:25:01 +00:00
Owen Anderson
4bda6e47e9
Remove unneeded #include's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:47:38 +00:00
Owen Anderson
a8bd65835b
Refactor memcpyopt based on Chris' suggestions. Consolidate several functions
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and simplify code that was fallout from the separation of memcpyopt and gvn.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50034 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:45:10 +00:00
Duncan Sands
e47d98200e
Fix a "large integer implicitly truncated to unsigned type"
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warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50033 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 07:35:28 +00:00
Chris Lattner
ea705199af
don't print dominators every time it is computed with -debug.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 06:19:02 +00:00
Chris Lattner
a1b5858fda
another bug introduced in r47802 by nicholas, for no apparent reason.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 06:12:55 +00:00
Chris Lattner
7d717a0b70
Add an ugly note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 04:46:30 +00:00
Chris Lattner
96c5b2f8c7
fix a bug introduced by Nicholas' "unwinds to" stuff: we
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lost newlines between blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50024 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 04:20:33 +00:00
Chris Lattner
281def9456
don't assume that the argument passed to fprintf("%s" is a string. This
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fixes a crash in opt on 433.milc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50023 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 03:18:33 +00:00
Chris Lattner
2cc675180b
Use the new SplitBlockPredecessors to implement a todo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50022 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 02:57:57 +00:00
Chris Lattner
54b9c3ba2a
Move SplitBlockPredecessors out of loopsimplify into BasicBlockUtils.h
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as a global helper function. At the same type, switch it from taking
a vector of predecessors to an arbitrary sequential input. This allows
us to switch LoopSimplify to use a SmallVector for various temporary
vectors that it passed into SplitBlockPredecessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50020 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 01:28:02 +00:00
Chris Lattner
1b58678d54
Move domtree/frontier updating earlier, allowing us to use it to update phi
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nodes, removing a hack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50019 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 01:05:08 +00:00
Chris Lattner
b85979434d
Factor dominator tree and frontier updating into SplitBlockPredecessors
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instead of doing it after every call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50018 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:54:38 +00:00
Chris Lattner
48a80b07bd
fit some more code in 80 cols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50016 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:25:49 +00:00
Chris Lattner
34093a634a
simplify code, fit in 80 cols.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50015 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:23:14 +00:00
Chris Lattner
862f27ebab
fit in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50014 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-21 00:19:16 +00:00