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19083 Commits

Author SHA1 Message Date
Benjamin Kramer
4e8590c45d ARM/NEON: Pattern match vector integer abs to vabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180604 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-26 15:00:57 +00:00
Benjamin Kramer
753981784f X86: Now that we have a canonical form for vector integer abs, match it into pabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180600 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-26 12:05:21 +00:00
Benjamin Kramer
6242fda42a DAGCombiner: Canonicalize vector integer abs in the same way we do it for scalars. 
This already helps SSE2 x86 a lot because it lacks an efficient way to
represent a vector select. The long term goal is to enable the backend to match
a canonicalized pattern into a single instruction (e.g. vabs or pabs).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180597 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-26 09:19:19 +00:00
Nadav Rotem
7557e521e5 LoopVectorizer: Calculate the number of pointers to disambiguate at runtime based on the numbers of reads and writes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180593 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-26 05:08:59 +00:00
Jack Carter
97265a4889 Mips assembler: .set reorder support 
Mips have delayslots for certain instructions 
like jumps and branches. These are instructions 
that follow the branch or jump and are executed
before the jump or branch is completed.

Early Mips compilers could not cope with delayslots
and left them up to the assembler. The assembler would
fill the delayslots with the appropriate instruction,
usually just a nop to allow correct runtime behavior.

The default behavior for this is set with .set reorder.
To tell the assembler that you don't want it to mess with
the delayslot one used .set noreorder.

For backwards compatibility we need to support
.set reorder and have it be the default behavior in the 
assembler.

Our support for it is to insert a NOP directly after an
instruction with a delayslot when in .set reorder mode.

Contributer: Vladimir Medic


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180584 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 23:31:35 +00:00
Michael Liao
0fc7137f2f Remove SMLoc paired with CHECK-NOT patterns. Not functionality change. 
Pattern has source location by itself. After adding a trivial method to
retrieve it, it's unnecessary to pair a source location for CHECK-NOT patterns.
One thing revised after this is the diagnostic info is more accurate by
pointing to the start of the CHECK-NOT pattern instead of the end of the
CHECK-NOT pattern. E.g. diagnostic message previously looks like

    <stdin>:1:1: error: CHECK-NOT: string occurred!
    test
    ^
    test.txt:1:16: note: CHECK-NOT: pattern specified here
    CHECK-NOT: test
                   ^

is changed to

    <stdin>:1:1: error: CHECK-NOT: string occurred!
    test
    ^
    test.txt:1:12: note: CHECK-NOT: pattern specified here
    CHECK-NOT: test
               ^



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180578 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 21:31:34 +00:00
Arnold Schwaighofer
45c9e0b412 ARM cost model: Integer div and rem is lowered to a function call 
Reflect this in the cost model. I observed this in MiBench/consumer-lame.

radar://13354716

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180576 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 21:16:18 +00:00
Preston Gurd
d6ac8e9a03 This patch adds the X86FixupLEAs pass, which will reduce instruction 
latency for certain models of the Intel Atom family, by converting
instructions into their equivalent LEA instructions, when it is both
useful and possible to do so.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180573 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 20:29:37 +00:00
Nadav Rotem
975b1ddf60 LoopVectorizer: No need to generate pointer disambiguation checks between readonly pointers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180570 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 19:55:03 +00:00
Reid Kleckner
4b55815303 [mc-coff] Forward Linker Option flags into the .drectve section 
Summary:
This is modelled on the Mach-O linker options implementation and should
support a Clang implementation of #pragma comment(lib/linker).

Reviewers: rafael

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D724

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180569 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 19:34:41 +00:00
Rafael Espindola
93d0b06e2a Fix section relocation for SECTIONREL32 with immediate offset. 
Patch by Kai Nacke. This matches the gnu as output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180568 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 19:27:05 +00:00
Chad Rosier
5df2e16ba1 [inline asm] Add a test case for r180226. The specific issue is that the inline 
assembly is requesting a 64-bit register, which is invalid for i386.
rdar://13731657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180445 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 17:10:21 +00:00
Rafael Espindola
956ca7265c Clarify getRelocationAddress x getRelocationOffset a bit. 
getRelocationAddress is for dynamic libraries and executables,
getRelocationOffset for relocatable objects.

Mark the getRelocationAddress of COFF and MachO as not implemented yet. Add a
test of ELF's. llvm-readobj -r now prints the same values as readelf -r.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180259 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 12:28:45 +00:00
Silviu Baranga
02066838b5 Fix constant folding for one lane vector types. Constant folding one lane vector types not returns a vector instead of a scalar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180254 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 09:32:33 +00:00
Akira Hatanaka
24b56e94f6 Test case for r180241. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180246 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 02:22:07 +00:00
Akira Hatanaka
4cc3d1b910 Test case for r180238. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180245 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-25 02:21:09 +00:00
Tom Stellard
87cba4a4c1 R600: Use SHT_PROGBITS for the .AMDGPU.config section 
The libelf implementation that is distributed here:
http://www.mr511.de/software/english.html
will not parse sections that are marked SHT_NULL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180230 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 23:56:14 +00:00
Jack Carter
a2b9d3d8ba Mips assembler: Add 64 bit testing for JAL 
Contributer: Vladimir Medic


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180220 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 21:52:42 +00:00
Rafael Espindola
802fe9340d Use pointers to iterate over symbols. 
While here, don't report a dummy symbol for relocations that don't have symbols.
We used to says such relocations were for the first defined symbol, but now we
return end_symbols(). The llvm-readobj output change agrees with otool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180214 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 19:47:55 +00:00
Arnold Schwaighofer
a4b8b4ccc9 LoopVectorize: Scalarize padded types 
This patch disables memory-instruction vectorization for types that need padding
bytes, e.g., x86_fp80 has 10 bytes store size with 6 bytes padding in darwin on
x86_64. Because the load/store vectorization is performed by the bit casting to
a packed vector, which has incompatible memory layout due to the lack of padding
bytes, the present vectorizer produces inconsistent result for memory
instructions of those types.
This patch checks an equality of the AllocSize of a scalar type and allocated
size for each vector element, to ensure that there is no padding bytes and the
array can be read/written using vector operations.

Patch by Daisuke Takahashi!

Fixes PR15758.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180196 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 16:16:01 +00:00
Arnold Schwaighofer
b03ad17536 LoopVectorizer: Bail out if we don't have datalayout we need it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180195 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 16:15:58 +00:00
Andrew Trick
e38afe1e33 MI Sched: eliminate local vreg copies. 
For now, we just reschedule instructions that use the copied vregs and
let regalloc elliminate it. I would really like to eliminate the
copies on-the-fly during scheduling, but we need a complete
implementation of repairIntervalsInRange() first.

The general strategy is for the register coalescer to eliminate as
many global copies as possible and shrink live ranges to be
extended-basic-block local. The coalescer should not have to worry
about resolving local copies (e.g. it shouldn't attemp to reorder
instructions). The scheduler is a much better place to deal with local
interference. The coalescer side of this equation needs work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180193 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 15:54:43 +00:00
Adrian Prantl
857eeeced9 Cleanup testcase and ensure we actually exercise the inliner. 
rdar://problem/12415623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180168 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-24 01:44:15 +00:00
Jyotsna Verma
42ba77db53 Hexagon: Use multiclass for combine and STri[bhwd]_shl_V4 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180145 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 21:17:40 +00:00
Adrian Prantl
f48509787a Make sure the instruction right after an inlined function has a 
debug location. This solves a problem where range of an inlined
subroutine is emitted wrongly.
Patch by Manman Ren.

Fixes rdar://problem/12415623

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180140 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 19:56:03 +00:00
Stephen Lin
81fef0267b Add more tests for r179925 to verify correct handling of signext/zeroext; strengthen condition check to require actual MVT::i32 virtual register types, just in case (no actual functionality change) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180138 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 19:42:25 +00:00
Rafael Espindola
a0840c4b82 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180137 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 19:39:34 +00:00
Jyotsna Verma
47089c91ae Hexagon: Remove assembler mapped instruction definitions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180133 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 19:15:55 +00:00
Vincent Lejeune
2a74639bc7 R600: Use .AMDGPU.config section to emit stacksize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180124 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 17:34:12 +00:00
Vincent Lejeune
7a28d8afa7 R600: Add CF_END 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180123 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 17:34:00 +00:00
Nadav Rotem
a7d9a6ee63 LoopVectorizer: Fix 15830. When scalarizing and unrolling stores make sure that the order in which the elements are scalarized is the same as the original order. 
This fixes a miscompilation in FreeBSD's regex library.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180121 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 17:12:42 +00:00
Jyotsna Verma
3d7b39e7d4 Hexagon: Remove duplicate instructions to handle global/immediate values 
for absolute/absolute-set addressing modes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180120 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 17:11:46 +00:00
Pekka Jaaskelainen
2e59a125fc Call the potentially costly isAnnotatedParallel() only once. 
Made the uniform write test's checks a bit stricter.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180119 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 16:44:43 +00:00
Rafael Espindola
120cf5743b Write relocations in yaml2obj. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180115 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 15:53:02 +00:00
Rafael Espindola
2848ff01e2 Move test from grep to FileCheck. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180092 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 12:03:27 +00:00
Alexey Samsonov
005159e924 Use zlib to uncompress debug sections in DWARF parser. 
This makes llvm-dwarfdump and llvm-symbolizer understand
debug info sections compressed by ld.gold linker.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180088 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 10:17:34 +00:00
Pekka Jaaskelainen
a8958769ea Refuse to (even try to) vectorize loops which have uniform writes, 
even if erroneously annotated with the parallel loop metadata.

Fixes Bug 15794: 
"Loop Vectorizer: Crashes with the use of llvm.loop.parallel metadata"



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180081 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-23 08:08:51 +00:00
Chad Rosier
f74d82d8e4 Add test case for PR15779, which has previously been fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180058 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 22:30:01 +00:00
Anat Shemer
c9090b0723 Changed back (relative to commit 179786) the operations executed when extract(cast) is transformed to cast(extract). It uses the Builder class as before. In addition the result node is added to the Worklist, so all the previous extract users will become the new scalar cast users. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180045 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 20:51:10 +00:00
Akira Hatanaka
d597263b94 [mips] In performDSPShiftCombine, check that all elements in the vector are 
shifted by the same amount and the shift amount is smaller than the element
size.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180039 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 19:58:23 +00:00
Peter Collingbourne
4974b972e7 COFF: Fix weak external aliases. 
Differential Revision: http://llvm-reviews.chandlerc.com/D700

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180034 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 18:48:56 +00:00
Stephen Lin
2fdbbe307d Extra paranoid test for r179925 (verify that tail calls are not generated to 'this'-returning constructors of objects with different 'this' pointers than the caller) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180032 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 17:23:49 +00:00
Rafael Espindola
97bf57d488 Also verify llvm.compiler_used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180020 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 15:16:51 +00:00
Rafael Espindola
cde25b435a Clarify that llvm.used can contain aliases. 
Also add a check for llvm.used in the verifier and simplify clients now that
they can assume they have a ConstantArray.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180019 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 14:58:02 +00:00
Stepan Dyatkovskiy
78e3c90419 Fix for 5.5 Parameter Passing --> Stage C: 
-- C.4 and C.5 statements, when NSAA is not equal to SP.
 -- C.1.cp statement for VA functions. Note: There are no VFP CPRCs in a
    variadic procedure.

Before this patch "NSAA != 0" means "don't use GPRs anymore ". But there are
some exceptions in AAPCS.
1. For non VA function: allocate all VFP regs for CPRC. When all VFPs are allocated
   CPRCs would be sent to stack, while non CPRCs may be still allocated in GRPs.
2. Check that for VA functions all params uses GPRs and then stack.
   No exceptions, no CPRCs here.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180011 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 13:06:52 +00:00
Eric Christopher
4f40fa324c Add .ll as a valid test suffix for Object, this allows .ll -> object 
and then dumping as tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180010 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 10:45:06 +00:00
Arnaud A. de Grandmaison
d9e70873f3 Cleanup: test source files do not need to be executable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180003 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 08:02:43 +00:00
David Blaikie
c462db6d66 Revert "Revert "PR14606: debug info imported_module support"" 
This reverts commit r179840 with a fix to test/DebugInfo/two-cus-from-same-file.ll

I'm not sure why that test only failed on ARM & MIPS and not X86 Linux, even
though the debug info was clearly invalid on all of them, but this ought to fix
it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179996 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-22 06:12:31 +00:00
Jim Grosbach
0cb1019e9c Legalize vector truncates by parts rather than just splitting. 
Rather than just splitting the input type and hoping for the best, apply
a bit more cleverness. Just splitting the types until the source is
legal often leads to an illegal result time, which is then widened and a
scalarization step is introduced which leads to truly horrible code
generation. With the loop vectorizer, these sorts of operations are much
more common, and so it's worth extra effort to do them well.

Add a legalization hook for the operands of a TRUNCATE node, which will
be encountered after the result type has been legalized, but if the
operand type is still illegal. If simple splitting of both types
ends up with the result type of each half still being legal, just
do that (v16i16 -> v16i8 on ARM, for example). If, however, that would
result in an illegal result type (v8i32 -> v8i8 on ARM, for example),
we can get more clever with power-two vectors. Specifically,
split the input type, but also widen the result element size, then
concatenate the halves and truncate again.  For example on ARM,
To perform a "%res = v8i8 trunc v8i32 %in" we transform to:
  %inlo = v4i32 extract_subvector %in, 0
  %inhi = v4i32 extract_subvector %in, 4
  %lo16 = v4i16 trunc v4i32 %inlo
  %hi16 = v4i16 trunc v4i32 %inhi
  %in16 = v8i16 concat_vectors v4i16 %lo16, v4i16 %hi16
  %res = v8i8 trunc v8i16 %in16

This allows instruction selection to generate three VMOVN instructions
instead of a sequences of moves, stores and loads.

Update the ARMTargetTransformInfo to take this improved legalization
into account.

Consider the simplified IR:

define <16 x i8> @test1(<16 x i32>* %ap) {
  %a = load <16 x i32>* %ap
  %tmp = trunc <16 x i32> %a to <16 x i8>
  ret <16 x i8> %tmp
}

define <8 x i8> @test2(<8 x i32>* %ap) {
  %a = load <8 x i32>* %ap
  %tmp = trunc <8 x i32> %a to <8 x i8>
  ret <8 x i8> %tmp
}

Previously, we would generate the truly hideous:
	.syntax unified
	.section	__TEXT,__text,regular,pure_instructions
	.globl	_test1
	.align	2
_test1:                                 @ @test1
@ BB#0:
	push	{r7}
	mov	r7, sp
	sub	sp, sp, #20
	bic	sp, sp, #7
	add	r1, r0, #48
	add	r2, r0, #32
	vld1.64	{d24, d25}, [r0:128]
	vld1.64	{d16, d17}, [r1:128]
	vld1.64	{d18, d19}, [r2:128]
	add	r1, r0, #16
	vmovn.i32	d22, q8
	vld1.64	{d16, d17}, [r1:128]
	vmovn.i32	d20, q9
	vmovn.i32	d18, q12
	vmov.u16	r0, d22[3]
	strb	r0, [sp, #15]
	vmov.u16	r0, d22[2]
	strb	r0, [sp, #14]
	vmov.u16	r0, d22[1]
	strb	r0, [sp, #13]
	vmov.u16	r0, d22[0]
	vmovn.i32	d16, q8
	strb	r0, [sp, #12]
	vmov.u16	r0, d20[3]
	strb	r0, [sp, #11]
	vmov.u16	r0, d20[2]
	strb	r0, [sp, #10]
	vmov.u16	r0, d20[1]
	strb	r0, [sp, #9]
	vmov.u16	r0, d20[0]
	strb	r0, [sp, #8]
	vmov.u16	r0, d18[3]
	strb	r0, [sp, #3]
	vmov.u16	r0, d18[2]
	strb	r0, [sp, #2]
	vmov.u16	r0, d18[1]
	strb	r0, [sp, #1]
	vmov.u16	r0, d18[0]
	strb	r0, [sp]
	vmov.u16	r0, d16[3]
	strb	r0, [sp, #7]
	vmov.u16	r0, d16[2]
	strb	r0, [sp, #6]
	vmov.u16	r0, d16[1]
	strb	r0, [sp, #5]
	vmov.u16	r0, d16[0]
	strb	r0, [sp, #4]
	vldmia	sp, {d16, d17}
	vmov	r0, r1, d16
	vmov	r2, r3, d17
	mov	sp, r7
	pop	{r7}
	bx	lr

	.globl	_test2
	.align	2
_test2:                                 @ @test2
@ BB#0:
	push	{r7}
	mov	r7, sp
	sub	sp, sp, #12
	bic	sp, sp, #7
	vld1.64	{d16, d17}, [r0:128]
	add	r0, r0, #16
	vld1.64	{d20, d21}, [r0:128]
	vmovn.i32	d18, q8
	vmov.u16	r0, d18[3]
	vmovn.i32	d16, q10
	strb	r0, [sp, #3]
	vmov.u16	r0, d18[2]
	strb	r0, [sp, #2]
	vmov.u16	r0, d18[1]
	strb	r0, [sp, #1]
	vmov.u16	r0, d18[0]
	strb	r0, [sp]
	vmov.u16	r0, d16[3]
	strb	r0, [sp, #7]
	vmov.u16	r0, d16[2]
	strb	r0, [sp, #6]
	vmov.u16	r0, d16[1]
	strb	r0, [sp, #5]
	vmov.u16	r0, d16[0]
	strb	r0, [sp, #4]
	ldm	sp, {r0, r1}
	mov	sp, r7
	pop	{r7}
	bx	lr

Now, however, we generate the much more straightforward:
	.syntax unified
	.section	__TEXT,__text,regular,pure_instructions
	.globl	_test1
	.align	2
_test1:                                 @ @test1
@ BB#0:
	add	r1, r0, #48
	add	r2, r0, #32
	vld1.64	{d20, d21}, [r0:128]
	vld1.64	{d16, d17}, [r1:128]
	add	r1, r0, #16
	vld1.64	{d18, d19}, [r2:128]
	vld1.64	{d22, d23}, [r1:128]
	vmovn.i32	d17, q8
	vmovn.i32	d16, q9
	vmovn.i32	d18, q10
	vmovn.i32	d19, q11
	vmovn.i16	d17, q8
	vmovn.i16	d16, q9
	vmov	r0, r1, d16
	vmov	r2, r3, d17
	bx	lr

	.globl	_test2
	.align	2
_test2:                                 @ @test2
@ BB#0:
	vld1.64	{d16, d17}, [r0:128]
	add	r0, r0, #16
	vld1.64	{d18, d19}, [r0:128]
	vmovn.i32	d16, q8
	vmovn.i32	d17, q9
	vmovn.i16	d16, q8
	vmov	r0, r1, d16
	bx	lr

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179989 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-21 23:47:41 +00:00
Jim Grosbach
5eabdf2601 ARM: Split out cost model vcvt testcases. 
They had a separate RUN line already, so may as well be in a separate file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179988 91177308-0d34-0410-b5e6-96231b3b80d8
 2013-04-21 23:47:37 +00:00