ba0014a44c
update status of this. basicaa is much improved now,
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only missing the one form (in this testcase). Dan, do you
consider this example to be important?
llvm-svn: 89953
2009-11-26 16:42:00 +00:00
29bc8a91d3
Teach basicaa that x|c == x+c when the c bits of x are clear. This
...
allows us to compile the example in readme.txt into:
LBB1_1: ## %bb
movl 4(%rdx,%rax), %ecx
movl %ecx, %esi
imull (%rdx,%rax), %esi
imull %esi, %ecx
movl %esi, 8(%rdx,%rax)
imull %ecx, %esi
movl %ecx, 12(%rdx,%rax)
movl %esi, 16(%rdx,%rax)
imull %ecx, %esi
movl %esi, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
instead of:
LBB1_1:
movl (%rdx,%rax), %ecx
imull 4(%rdx,%rax), %ecx
movl %ecx, 8(%rdx,%rax)
imull 4(%rdx,%rax), %ecx
movl %ecx, 12(%rdx,%rax)
imull 8(%rdx,%rax), %ecx
movl %ecx, 16(%rdx,%rax)
imull 12(%rdx,%rax), %ecx
movl %ecx, 20(%rdx,%rax)
addq $16, %rax
cmpq $4000, %rax
jne LBB1_1
GCC (4.2) doesn't seem to be able to eliminate the loads in this
testcase either, it generates:
L2:
movl (%rdx), %eax
imull 4(%rdx), %eax
movl %eax, 8(%rdx)
imull 4(%rdx), %eax
movl %eax, 12(%rdx)
imull 8(%rdx), %eax
movl %eax, 16(%rdx)
imull 12(%rdx), %eax
movl %eax, 20(%rdx)
addl $4, %ecx
addq $16, %rdx
cmpl $1002, %ecx
jne L2
llvm-svn: 89952
2009-11-26 16:26:43 +00:00
12dacdd359
teach basicaa that A[i] != A[i+1].
...
llvm-svn: 89951
2009-11-26 16:18:10 +00:00
453751031a
rename test
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llvm-svn: 89950
2009-11-26 16:08:41 +00:00
7a5b56aca9
Change the other half of aliasGEP (which handles GEP differencing) to use DecomposeGEPExpression. This dramatically simplifies and shrinks the code by eliminating the horrible CheckGEPInstructions method, fixes a miscompilation ( @test3 ) and makes the code more aggressive. In particular, we now handle the @test4 case, which is reduced from the SmallPtrSet constructor. Missing this caused us to emit a variable length memset instead of a fixed size one.
...
llvm-svn: 89922
2009-11-26 02:17:34 +00:00
0d23076adf
add a new random feature test
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llvm-svn: 89921
2009-11-26 02:16:28 +00:00
a4c986cbdd
Test for 89905.
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llvm-svn: 89906
2009-11-26 00:35:01 +00:00
979ac9fce4
Test for llvm-gcc checkin 89898.
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llvm-svn: 89899
2009-11-25 23:50:09 +00:00
44df27e964
ProcessImplicitDefs should watch out for invalidated iterator and extra implicit operands on copies.
...
llvm-svn: 89880
2009-11-25 21:13:39 +00:00
2db07581b7
Support PIC loading of constant pool entries
...
llvm-svn: 89863
2009-11-25 12:17:58 +00:00
2b8fed15e0
Reverting patch in revision 89758, initial attempt at fixing PR5373 has proven to be bogus.
...
llvm-svn: 89844
2009-11-25 05:38:41 +00:00
5ece8f0a20
Do not store R31 into the caller's link area on PPC.
...
This violates the ABI (that area is "reserved"), and
while it is safe if all code is generated with current
compilers, there is some very old code around that uses
that slot for something else, and breaks if it is stored
into. Adjust testcases looking for current behavior.
I've verified that the stack frame size is right in all
testcases, whether it changed or not. 7311323.
llvm-svn: 89811
2009-11-24 22:59:02 +00:00
5fd452d596
Fix for PR5373, Credit to Jakub Staszak.
...
llvm-svn: 89758
2009-11-24 11:51:52 +00:00
184ec26fcd
Enable predication of NEON instructions in Thumb2 mode.
...
llvm-svn: 89748
2009-11-24 08:06:15 +00:00
2522908653
Materialize global addresses via movt/movw pair, this is always better
...
than doing the same via constpool:
1. Load from constpool costs 3 cycles on A9, movt/movw pair - just 2.
2. Load from constpool might stall up to 300 cycles due to cache miss.
3. Movt/movw does not use load/store unit.
4. Less constpool entries => better compiler performance.
This is only enabled on ELF systems, since darwin does not have needed
relocations (yet).
llvm-svn: 89720
2009-11-24 00:44:37 +00:00
dbb4140f37
move fconst[sd] to UAL. <rdar://7414913>
...
llvm-svn: 89700
2009-11-23 21:08:25 +00:00
50b293d65e
update test for 89694
...
llvm-svn: 89695
2009-11-23 20:39:53 +00:00
580b80d6d9
Make ConstantFoldConstantExpression recursively visit the entire
...
ConstantExpr, not just the top-level operator. This allows it to
fold many more constants.
Also, make GlobalOpt call ConstantFoldConstantExpression on
GlobalVariable initializers.
llvm-svn: 89659
2009-11-23 16:22:21 +00:00
1f522d98f8
Fix a use of an invalidated iterator in the case where there are multiple
...
adjacent uses of a dead basic block from the same user. This fixes PR5596.
llvm-svn: 89658
2009-11-23 16:13:39 +00:00
922d4ab574
Reapply r88830 with a bugfix: this transform only applies to icmp eq/ne. This
...
fixes part of PR5438.
llvm-svn: 89639
2009-11-23 03:17:33 +00:00
db1e9f1290
remove a silly condition that doesn't make a lot of sense anymore.
...
llvm-svn: 89601
2009-11-22 16:15:59 +00:00
f161e97a9e
Miss two, PR5307.
...
llvm-svn: 89596
2009-11-22 15:35:28 +00:00
cc856372b0
Convert Thumb2 tests to FileCheck for PR5307.
...
llvm-svn: 89595
2009-11-22 15:18:27 +00:00
a9268a4525
Turns out stuff gets allocated to different registers depending on the subtarget.
...
llvm-svn: 89594
2009-11-22 15:15:52 +00:00
21d7e8aeb1
Convert ARM tests to FileCheck for PR5307.
...
llvm-svn: 89593
2009-11-22 14:23:33 +00:00
2e245f4e18
Convert test to FileCheck.
...
llvm-svn: 89589
2009-11-22 13:16:36 +00:00
8966897524
Forgot to alter RUN line when converting to FileCheck.
...
llvm-svn: 89588
2009-11-22 13:09:48 +00:00
7150767800
Fix for bad FileCheck converts in revision 89584.
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llvm-svn: 89586
2009-11-22 12:50:05 +00:00
15dd46215e
Convert a few tests to FileCheck for PR5307.
...
llvm-svn: 89584
2009-11-22 11:45:44 +00:00
67e6cab49f
Fix pr5470. Tablegen handles template arguments by temporarily setting their
...
values, resolving references to them, and then removing the definitions.
If a template argument is set to an undefined value, we need to resolve
references to that argument to an explicit undefined value. The current code
leaves the reference to the template argument as it is, which causes an
assertion failure later when the definition of the template argument is
removed.
llvm-svn: 89581
2009-11-22 03:58:57 +00:00
e09e95b35c
Revert 89562. We're being sneakier than I was giving us credit for, and this
...
isn't necessary.
llvm-svn: 89568
2009-11-21 23:34:09 +00:00
43fd822249
Darwin requires a frame pointer for all non-leaf functions to support correct
...
backtraces.
llvm-svn: 89562
2009-11-21 21:40:08 +00:00
4c83e2c253
Don't leave temporary files in the test directory.
...
llvm-svn: 89531
2009-11-21 02:05:31 +00:00
b91eba382d
When generating a vector the really slow way, via loads
...
and stores, handle the case where the element size is not
a valid target type correctly (PPC).
llvm-svn: 89521
2009-11-21 00:53:23 +00:00
73f9a9e2c8
Enable hoisting load from constant memories.
...
llvm-svn: 89510
2009-11-20 23:31:34 +00:00
c1f532e930
Recommitting PALIGNR shift width fixes.
...
Thanks to Daniel Dunbar for fixing clang intrinsics:
http://llvm.org/viewvc/llvm-project?view=rev&revision=89499
llvm-svn: 89500
2009-11-20 22:28:42 +00:00
8495a506eb
Remove an incorrect overaggressive optimization
...
(PPC specific).
llvm-svn: 89496
2009-11-20 22:16:40 +00:00
19d92728d0
Reverting PALIGNR fix until I figure out how this
...
broke the Clang testsuite.
llvm-svn: 89495
2009-11-20 22:09:28 +00:00
fbed130173
Fixed PALIGNR to take 8-bit rotations in all cases.
...
Also fixed the corresponding testcase, and the PALIGNR
intrinsic (tested for correctness with llvm-gcc).
llvm-svn: 89491
2009-11-20 21:40:28 +00:00
fbffe63528
Make Loop::getLoopLatch() work on loops which don't have preheaders, as
...
it may be used in contexts where preheader insertion may have failed due
to an indirectbr.
Make LoopSimplify's LoopSimplify::SeparateNestedLoop properly fail in
the case that it would require splitting an indirectbr edge.
These fix PR5502.
llvm-svn: 89484
2009-11-20 20:51:18 +00:00
d15302afa0
Fix IPSCCP's code for deleting dead blocks to tolerate outstanding
...
blockaddress users. This fixes PR5569.
llvm-svn: 89483
2009-11-20 20:19:14 +00:00
bdb43a9d99
Remat VLDRD from constpool. Clean up some instruction property specifications.
...
llvm-svn: 89478
2009-11-20 19:57:15 +00:00
cc0a0cb4b7
Fix PR5558, which was caused by a wrong fix for PR3393 (see commit 63048),
...
which was an expensive checks failure due to a bug in the checking. This
patch in essence reverts the original fix for PR3393, and refixes it by a
tweak to the way expensive checking is done.
llvm-svn: 89454
2009-11-20 10:45:10 +00:00
e986c44a9b
Try to work around grep's "Binary file (standard input) matches" complaints seen
...
on ppc buildbot.
llvm-svn: 89452
2009-11-20 09:53:25 +00:00
fa559f46c4
Fix -march= name for x86-64.
...
llvm-svn: 89445
2009-11-20 02:52:08 +00:00
20c8ab655e
Fix fast-isel to avoid selecting the return instruction if a
...
tail call has been encountered.
llvm-svn: 89444
2009-11-20 02:51:26 +00:00
bbd50b0f78
Also CSE non-pic load from constant pools.
...
llvm-svn: 89440
2009-11-20 02:10:27 +00:00
62167b9516
Teach getSmallConstantTripMultiple about Shl operators.
...
llvm-svn: 89426
2009-11-20 01:09:34 +00:00
81a2851bcb
Fix codegen of conditional move of immediates. We were not making use of the immediate forms of cmov instructions at all.
...
llvm-svn: 89423
2009-11-20 00:54:03 +00:00
c0cc2ae45b
Specify proper arch and triple for 64-bit.
...
llvm-svn: 89418
2009-11-20 00:40:21 +00:00
Chris Lattner