Commit Graph

4277 Commits

Author SHA1 Message Date
Eric Christopher
e74a088d92 Add an option to always emit realignment code for a particular module.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110404 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 23:57:43 +00:00
Devang Patel
baefea4498 Move x86 specific tests into test/CodeGen/X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 20:25:37 +00:00
Dan Gohman
a34c885d51 Move x86-specific tests out of test/Transforms/LoopStrengthReduce and
into test/CodeGen/X86, so that they aren't run when the x86 target is
not enabled.

Fix uglygep.ll to not be x86-specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110343 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 17:04:15 +00:00
Daniel Dunbar
feaac8f7ff tests: CodeGen/X86/GC tests require X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05 15:45:33 +00:00
Bill Wendling
af33b7b4a7 The lower invoke pass needs to have unreachable code elimination run after it
because it could create such things. This fixes a MingW buildbot test failure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 23:36:02 +00:00
Eli Friedman
7752442bfa PR7814: Truncates cannot be ignored for signed comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110268 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 22:40:58 +00:00
Bill Wendling
547b6ed16e Testcase for r110248.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 21:56:30 +00:00
Stuart Hastings
b884666a38 call-imm.ll test case regex fix. Patch by Dimitry Andric!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 15:31:35 +00:00
Kalle Raiskila
bc2697cca0 Make SPU backend handle insertelement and
store for "half vectors"


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110198 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 13:59:48 +00:00
Bob Wilson
67b453b0d1 Combine NEON VABD (absolute difference) intrinsics with ADDs to make VABA
(absolute difference with accumulate) intrinsics.  Radar 8228576.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 00:12:08 +00:00
Jakob Stoklund Olesen
0055f97f72 OK, that's it. This test is going away now. But don't worry, I am taking it to a
nice farm in the country where it can play with other tests. And bunnies.

It is not clear what is being tested, and the revision history shows a bunch of
random changes to the expected instruction count. Clearly, we are just fudging
it to pass whenever it fails.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 17:21:14 +00:00
Kalle Raiskila
e1c9159f63 More SPU v2f32 stuff added: insertelement and shuffle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110038 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 11:22:10 +00:00
Kalle Raiskila
c9fda996fc Add preliminary v2f32 support for SPU. Like with v2i32, we just
duplicate the instructions and operate on half vectors. 

Also reorder code in SPUInstrInfo.td for better coherency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110037 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 10:25:47 +00:00
Kalle Raiskila
82fe467ca5 Add preliminary v2i32 support for SPU backend. As there are no
such registers in SPU, this support boils down to "emulating" 
them by duplicating instructions on the general purpose registers. 

This adds the most basic operations on v2i32: passing parameters,
addition, subtraction, multiplication and a few others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110035 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 08:54:39 +00:00
Eli Friedman
e3837014d6 PR7781: Fix incorrect shifting in PPCTargetLowering::LowerBUILD_VECTOR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109998 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02 00:18:19 +00:00
Eli Friedman
348e02600e PR7774: Fix undefined shifts in Alpha backend. As a bonus, this actually
improves the generated code in some cases.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109985 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-01 21:13:28 +00:00
Bob Wilson
6945ef380c Revert new AVX intrinsic tests. They are breaking buildbots and Bruno is
away from a computer now.
--- Reverse-merging r109881 into '.':
D    test/CodeGen/X86/avx-intrinsics-x86.ll
D    test/CodeGen/X86/avx-intrinsics-x86_64.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109959 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-31 22:36:03 +00:00
Bruno Cardoso Lopes
74273b8822 A *bunch* of tests for AVX intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30 19:57:56 +00:00
Eli Friedman
ad78a88711 Fix for bug reported by Evzen Muller on llvm-commits: make sure to correctly
check the range of the constant when optimizing a comparison between a
constant and a sign_extend_inreg node.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30 06:44:31 +00:00
Jim Grosbach
6ccfc507dc Many Thumb2 instructions can reference the full ARM register set (i.e.,
have 4 bits per register in the operand encoding), but have undefined
behavior when the operand value is 13 or 15 (SP and PC, respectively).
The trivial coalescer in linear scan sometimes will merge a copy from
SP into a subsequent instruction which uses the copy, and if that
instruction cannot legally reference SP, we get bad code such as:
  mls r0,r9,r0,sp
instead of:
  mov r2, sp
  mls r0, r9, r0, r2

This patch adds a new register class for use by Thumb2 that excludes
the problematic registers (SP and PC) and is used instead of GPR
for those operands which cannot legally reference PC or SP. The
trivial coalescer explicitly requires that the register class
of the destination for the COPY instruction contain the source
register for the COPY to be considered for coalescing. This prevents
errant instructions like that above.

PR7499




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30 02:41:01 +00:00
Dale Johannesen
f630c712b1 Implement vector constants which are splat of
integers with mov + vdup.  8003375.  This is
currently disabled by default because LICM will
not hoist a VDUP, so it pessimizes the code if
the construct occurs inside a loop (8248029).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109799 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-29 20:10:08 +00:00
Nate Begeman
51409214d7 Implement a vectorized algorithm for <16 x i8> << <16 x i8>
This is about 4x faster and smaller than the existing scalarization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-28 00:21:48 +00:00
Nate Begeman
bdcb5afb77 ~40% faster vector shl <4 x i32> on SSE 4.1 Larger improvements for smaller types coming in future patches.
For:

define <2 x i64> @shl(<4 x i32> %r, <4 x i32> %a) nounwind readnone ssp {
entry:
  %shl = shl <4 x i32> %r, %a                     ; <<4 x i32>> [#uses=1]
  %tmp2 = bitcast <4 x i32> %shl to <2 x i64>     ; <<2 x i64>> [#uses=1]
  ret <2 x i64> %tmp2
}

We get:

_shl:                                   ## @shl
	pslld	$23, %xmm1
	paddd	LCPI0_0, %xmm1
	cvttps2dq	%xmm1, %xmm1
	pmulld	%xmm1, %xmm0
	ret

Instead of:

_shl:                                   ## @shl
	pshufd	$3, %xmm0, %xmm2
	movd	%xmm2, %eax
	pshufd	$3, %xmm1, %xmm2
	movd	%xmm2, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	pshufd	$1, %xmm0, %xmm3
	movd	%xmm3, %eax
	pshufd	$1, %xmm1, %xmm3
	movd	%xmm3, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm3
	punpckldq	%xmm2, %xmm3
	movd	%xmm0, %eax
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm2
	movhlps	%xmm0, %xmm0
	movd	%xmm0, %eax
	movhlps	%xmm1, %xmm1
	movd	%xmm1, %ecx
	shll	%cl, %eax
	movd	%eax, %xmm0
	punpckldq	%xmm0, %xmm2
	movdqa	%xmm2, %xmm0
	punpckldq	%xmm3, %xmm0
	ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 22:37:06 +00:00
Nate Begeman
e0efc216eb Fix a crash in the dag combiner caused by ConstantFoldBIT_CONVERTofBUILD_VECTOR calling itself
recursively and returning a SCALAR_TO_VECTOR node, but assuming the input was always a BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109519 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-27 18:02:18 +00:00
Anton Korobeynikov
b5a0ef99f8 Currently EH lowering code expects typeinfo to be global only.
This assumption is not satisfied due to global mergeing.
Workaround the issue by temporary disablinge mergeing of const globals.
Also, ignore LLVM "special" globals. This fixes PR7716

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109423 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-26 18:45:39 +00:00
Evan Cheng
3144687df7 - Allow target to specify when is register pressure "too high". In most cases,
it's too late to start backing off aggressive latency scheduling when most
  of the registers are in use so the threshold should be a bit tighter.
- Correctly handle live out's and extract_subreg etc.
- Enable register pressure aware scheduling by default for hybrid scheduler.
  For ARM, this is almost always a win on # of instructions. It's runtime
  neutral for most of the tests. But for some kernels with high register
  pressure it can be a huge win. e.g. 464.h264ref reduced number of spills by
  54 and sped up by 20%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23 22:39:59 +00:00
Dan Gohman
cd20c6fb18 Use the proper type for shift counts. This fixes a bootstrap error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109265 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23 21:08:12 +00:00
Dan Gohman
a4f4d699ec DAGCombine (shl (anyext x, c)) to (anyext (shl x, c)) if the high bits
are not demanded. This often allows the anyext to be folded away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-23 18:03:30 +00:00
Eric Christopher
9a9d275dc7 Custom lower the memory barrier instructions and add support
for lowering without sse2.  Add a couple of new testcases.

Fixes a few libgomp tests and latent bugs.  Remove a few todos.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109078 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-22 02:48:34 +00:00
Evan Cheng
4a863e2c75 More register pressure aware scheduling work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109064 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 23:53:58 +00:00
Eric Christopher
ab695889c6 Baby steps towards ARM fast-isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 22:26:11 +00:00
Rafael Espindola
bc56501435 Fix calling convention on ARM if vfp2+ is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109009 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 11:38:30 +00:00
Dan Gohman
fc3678a346 Fix SCEV denormalization of expressions where the exit value from
one loop is involved in the increment of an addrec for another
loop. This fixes rdar://8168938.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108863 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 17:06:20 +00:00
Jim Grosbach
f27ca42552 update tests for smarter BIC usage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108846 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 16:16:48 +00:00
Duncan Sands
6bf8eee264 The same problem was being tracked in PR7652.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108843 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 15:52:32 +00:00
Bruno Cardoso Lopes
46773793cb Fix PR7174, a couple o Mips fixes:
- Fix a typo for PIC check during jmp table lowering
- Also fix the "first jump table basic block is not
considered only reachable by fall through" problem, use this
ad-hoc solution until I come up with something better.

Patch by stetorvs@gmail.com



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 08:37:04 +00:00
Bruno Cardoso Lopes
29e9daa750 Fix Mips PR7473. Patch by stetorvs@gmail.com
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 07:58:51 +00:00
Dan Gohman
c6e59b71f5 After a custom inserter, in a block which has constant instructions,
update the current basic block in addition to the current insert
position, so that they remain consistent. This fixes rdar://8204072.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108765 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19 22:48:56 +00:00
Owen Anderson
54026c0f1b Remove r108639 now that it is handled by InstCombine instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108688 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-19 08:10:24 +00:00
Owen Anderson
fd73c9162e Add a testcase for r108639.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108640 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-18 08:57:19 +00:00
Jim Grosbach
5423856e44 Add combiner patterns to more effectively utilize the BFI (bitfield insert)
instruction for non-constant operands. This includes the case referenced
in the README.txt regarding a bitfield copy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-17 03:30:54 +00:00
Jim Grosbach
469bbdb597 Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction
and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108570 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 23:05:05 +00:00
Bill Wendling
dc86704114 Consider this function:
void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 22:51:10 +00:00
Jakob Stoklund Olesen
468a2a44e2 Remove the X86::FP_REG_KILL pseudo-instruction and the X86FloatingPointRegKill
pass that inserted it.

It is no longer necessary to limit the live ranges of FP registers to a single
basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108536 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 17:41:44 +00:00
Benjamin Kramer
3df1d5c408 Feed the right output into FileCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108523 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 10:58:02 +00:00
Jakob Stoklund Olesen
04c528a0c8 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway.
TII::isMoveInstr is going tobe completely removed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 04:45:42 +00:00
Jakob Stoklund Olesen
18c479c600 Add forgotten test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108506 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 04:45:35 +00:00
Dan Gohman
e667e01723 Use the source-order scheduler instead of the "fast" scheduler at -O0,
because it's more likely to keep debug line information in its original
order.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 02:01:19 +00:00
Dale Johannesen
bdc09d9b09 The SelectionDAGBuilder's handling of debug info, on rare
occasions, caused code to be generated in a different order.
All cases I've seen involved float softening in the type
legalizer, and this could be perhaps be fixed there, but
it's better not to generate things differently in the first
place.  7797940 (6/29/2010..7/15/2010).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16 00:02:08 +00:00
Bill Wendling
a60f0e7f81 Revert. This isn't the correct way to go.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108478 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 23:42:21 +00:00