improve built-in function "sinpi"

"sinpi" was calculated as "sin(pi * x)".
But that was not a quite-good way.
This patch improved the function, also included a test case.

v2: fix compiling warning

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

CL: Refactor cl_mem's implementation.

The buffer object is much simpler than the image object.
We'd better to not use the same big data structure for
both objects.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Lu, Guanqun" <guanqun.lu@intel.com>

Add a test case that trigger a known bug.

This unit test case trigger a known bug:
ASSERTION FAILED: TODO Boolean values cannot escape their definition
basic block.

Signed-off-by: Chuanbo Weng <chuanbo.weng@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

utests: Add a unit test for non-aligned group size.

To hit prediction logic.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: Clear Flag register to fix a gpu hang.

When group size not aligned to simdWidth, prediction any8/16h will
calculate pmask also using flag register bits mapped to non-active
lanes. As flag register is not cleared by default, any8/16h used
for jmpi instruction may cause wrong jump, and possibly infinite loop.

So, we clear Flag register to 0 to make any8/16h prediction work correct.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: disable cl_khr_fp64.

As the double support is incomplete currently, we disable it.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>

list all available utests' names

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

rename ulong to ulong64 to avoid the conflicts in <sys/types.h>

[ 31%] Building CXX object utests/CMakeFiles/utests.dir/compiler_abs_diff.cpp.o
/home/q/beignet.git/utests/compiler_abs_diff.cpp:201:18: error: conflicting declaration ‘typedef uint64_t ulong’
/usr/include/i386-linux-gnu/sys/types.h:151:27: error: ‘ulong’ has a previous declaration as ‘typedef long unsigned int ulong’

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

fix warning when egl is not there

[ 32%] Building CXX object utests/CMakeFiles/utests.dir/utest_helper.cpp.o
/home/q/beignet.git/utests/utest_helper.cpp: In function ‘int cl_ocl_init()’:
/home/q/beignet.git/utests/utest_helper.cpp:314:8: warning: variable ‘hasGLExt’ set but not used [-Wunused-but-set-variable]

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

fix left shift warning

/home/q/beignet.git/utests/compiler_long.cpp: In function ‘void compiler_long()’:
/home/q/beignet.git/utests/compiler_long.cpp:33:32: warning: left shift count >= width of type [enabled by default]
/home/q/beignet.git/utests/compiler_long.cpp:34:32: warning: left shift count >= width of type [enabled by default]

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

fix left shift warnings in utests

We should use the explicit 64 bit types. Otherwise we would have warnings.

Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Utests: enable long/ulong for abs_diff test case.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

enable signed 64-bit version of "abs_diff"

fixed operand type in IR instruction "move".
used one less flag register in 64-bit integer comparing.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

enable unsigned 64bit version of "abs_diff"

tested by piglit,

piglit/framework/../bin/cl-program-tester generated_tests/cl/builtin/int/builtin-ulong-abs_diff-1.0.generated.cl

piglit test case passed.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: skip instruction pattern match for 64 bit sel_cmp.

CPU instruction "sel_cmp" don't support 64bit int.
not emit SelectModifierInstructionPattern in that case.
tested by piglit. piglit test cases "long(ulong)-max(min,clamp)" all passed.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

fix a typo

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add async copy and async stride copy test case.

Just hard code the int2 and char4 type. Other types have tested using
comformance test.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Implement async and prefetch built-in.

Using the normal load & store to implement async copy,
and so wait_group_events use barrier.
Prefetch just define an empty function.

V2: fix llvm build error.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

test 64bit version of "upsample"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Fix unit test compiler_load_bool_imm error.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add 64bit version of "upsample"

since simple 64bit integer are supported,
add 64bit version of "upsample".

to test this patch, in piglit, run
  bin/cl-program-tester generated_tests/cl/builtin/int/builtin-int-upsample-1.0.generated.cl
  bin/cl-program-tester generated_tests/cl/builtin/int/builtin-uint-upsample-1.0.generated.cl

piglit test cases all pass.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add empty 64bit-integer version built-in functions

also change vector built-in generator to auto generate
64bit-integer versions of built-in functions

function body is empty now. detail will add in the future.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support built-in function mad_sat(int) and mad_sat(uint)

this patch has been tested by piglit.
piglit test cases "int_mad_sat" and "uint_mad_sat" passed.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

use r112 as source of EOT message

Fix random hang cases.
use r112 as source of EOT message.
Bspec requires r112-r127 as EOT message source.

Signed-off-by: Zou Nanhai <nanhai.zou@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: fix an illegal instruction.

Per Gen ISA spec:
When ExecSize = Width, VertStride must be set to Width * HorzStride.

For horizontal stride 2 in bottom_half, we always use it simd8 mode,
so we need to set the vertstride to 16 according to the above restrication.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: I64CMP should be treated as CMP in reg allocation and insn scheduling.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

test 64bit-integer comparing

only work when OCL_POST_ALLOC_INSN_SCHEDULE=0
because the post alloc scheduler puts CMP after SEL, but in IR,
CMP is before SEL, like this
 GT.int64 %34 %31 %33
 LOADI.int64 %38 3
 LOADI.int64 %39 4
 SEL.int64 %35 %34 %38 %39

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviwed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer comparing

support 64bit-integer comparing,
including EQ(==), NEQ(!=), G(>), GE(>=), L(<), LE(<=)

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviwed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Flush the queue after enqueue.

Flush the queue after enqueue.
This can fix some random fails in unit tests.

Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Reviwed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Tested-by: Yi Sun <yi.sun@intel.com>

Fix event pthread_mutex_lock dead lock.

In function cl_event_set_status, between pthread_mutex_lock and pthread_mutex_unlock
will call cl_event_delete, which also require the same lock, cause deak lock.
Unlock it before call cl_event_delete.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: set temporary address register for read64 to U64.

Actually, we really use it as two DWORD rather than U64. But if
we don't set it to U64, in post scheduler, it doesn't know this
is a QWORD register and may cause incorrect scheduling.

We can easily trigger this bug when run compiler_vector_double16_load_store
with SIMD8 mode. This patch can fix the bug.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer multiplication

also add test case

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add a load bool imm test case.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add bool move imm support.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

test 64bit-integer shifting

v2: put shifting in branch

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer shifting

support left-shifting (<<), right-shifting (>>),
and arithmetic right-shifting (>>).
v2: define temp reg as dest reg of instructions

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support converting shorter int to 64bit int

converting byte/word/dword to int64
also add test case
v2: define temporary reg as dest reg of instruction

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Define temporary reg as dest reg of instruction

I defined temporary reg as source reg of instruction.
But instruction scheduler looks source reg as read only reg.
So I define them as dest now.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add event unit test.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add openCL event support.

Now use the defer execute to wait events.
If there is no user event waited, then using wait rendering to wait
GPU event complete and call the enqueue api immediately.
If there is the user events waited, then should prepare the the enqueue
data, and resume the enqueue when all user events that waited complete.
The achieve these, add the enqueue callback to user event, and add the all
user event and other wait event list to enqueue callback. When set user event
to complete, check all enqueue callbacks wait this event.

Now, clEnqueueMark/clEnqueueBarrier still not impletement, and clEnqueueMapBuffer
/clEnqueueMapImage is not consistency with spec.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add function cl_command_queue_flush to flush a command

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add some functions to support event in intel gpgpu.

Now runtime prepare command batch first, if can't flush this command
immediately, call cl_gpgpu_event_pending to append the command to event,
when the command batch's wait events completed, than call cl_gpgpu_event_resume
to flush.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add a struct and a function to handle all implemented enqueue api.

Event and non-blocking enqueue api may use this function.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add the empty functions of cl_enqueueXXX.

Copy from cl_enqueueXXX functions and comment out. This change is for trace only.

Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

no "div by zero" in smoothstep test case

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Driver: Fix the incorrect size of surface 1.

According to Ben's comments, the surface 0 and 1 should be exactly
match each other, and the only reason why we need two surfaces rather
than 1 is that for the fulsim usage. Thus we should set surface
1 and 0 with the same memory size.

This patch fixes the flat_address_space unit test case and also
a randome failure reported by yang rong.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Tested-by: "Yang, Rong R" <rong.r.yang@intel.com>

utest: Add test case for function acos/acosh/asin/asinh.

Case contains illegal, boundary and legal values.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Handle boundary and illegal values.

Such as |x| = 1.0, |x| < 2**-27 and |x| > 1.

v2. Replace some constant variable with existing macro value.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Skip spill/unspill instruction when trying to do spill.

We can only spill virtual registers, should skip physical register.
This fix random failure of compiler_box_blur when do spilling.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Fix a re-schedule issue of scratch write

As scratchMsgHeader+1 will be re-used as scratch write payload.
So, scratchMsgHeader+1 will be first spilled out.
Add the scratch write dependency to keep scratch write in order.
this fix a failure(compiler_box_blur_float) when spilling.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

GBE: Fixed a bug and release 2 or 3 simdWidth register space.

This patch fix two issues. One is for the sel_cmp pattern matching.
We should not set the sel_cmp instruction state to physicalFlag, as
sel_cmp will never use a flag register. And as it set the physicalFlag
and leave the flagIndex to zero. Then it just increase the virtual
register 0's interval to as long as the last sel_cmp instruction,
thus the virtual register 0 will never be freed.

Another issue is that when we allocate special registers. We
are not always allocate them on demand. For example, the 3
local id registers are always allocated. Thus maybe some of the
registers are not used at all. So the interval's end point will
not get a chance to set to a proper value and it will never be
released. Now just init the end point to 0. And latter, if it's
used, it will be set to a proper value. Otherwise, it will be zero,
and will be deallocated when do expiering.

This patch could fix(work around) a long standing bug:
When disable the pre allocation instruction scheduling by
export OCL_PRE_ALLOC_INSN_SCHEDULE=0
And run the case:
utests/utest_run compiler_menger_sponge_no_shadow
it fails.

I spent almost one day to track down that it's related to the register
allocation. But I haven't root caused that where is the actual buggy
code. I doubt the register allocation, but I reviewed the code very
careful, and haven't found anything wrong. Now the last suspect is
in the register interval handling.

Anyway, by apply these patch to release two registers to the pool
which may change the register allocation/expieration, thus work around
that bug. We may still need to spend some time to investigate the root
cause the failure in the future.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Song, Ruiling" <ruiling.song@intel.com>

Utests: enable long/ulong in vector load/store test case.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Song, Ruiling" <ruiling.song@intel.com>

GBE: Fix one bug in instruction scheduling.

As now we may use 8 byte registers (long and double), then one
register may take two(SIMD8) or four(SIMD16) physical registers.
Thus if we met a register with long or double type, we need to
handle the immediately next index at the same time.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Song, Ruiling" <ruiling.song@intel.com>

GBE: fix insntruction scheduling related bugs in read64/write64.

In read64 and write64, we allocate some temporary registers and
we should put all of those temporary registers may be modified
to the instruction's dst array. Otherwise, the latter post instruction
scheduling may rearrange the instruction incorrectly.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Song, Ruiling" <ruiling.song@intel.com>

GBE: enable double vector load/store support.

We have some accurate problem for double calculation
on GPU side. I have to change the test case for double
type to add a tolerate error when check the double
data result.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: "Xing, Homer" <homer.xing@intel.com>

test 64bit-integer selection operator

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer selection operator "?:"

v2: reuse MOV to move 64bit integer. not add MOV_INT64 instruction.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Implement spill/unspill

The current implementation works like below:
I reserve a pool of registers for spill/reload. Currently 6 registers
are reserved to handle SelectionVector with at most 5 elements.
The other one is used as scratch message header register. The register
after header register was used as the payload for scratch write.

To do spill, just iterate the instructions. If the virtual register
was used as src, insert reload instruction before it. If the virtual
register was used as dst, insert spill instruction to write the register
content to scratch memory.

Limitations yet:
64bit not support.
SelectionVector > 5 not handled.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

enable scratch memory allocation and read/write

v2: refine function naming.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

keep address space qualifier of pointers

for built-in function with address-space-qualified pointers,
keep address space when accessing the pointers.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang, Rong R <rong.r.yang@intel.com>

test 64bit-integer immediate value, and "and", "or", "xor" arithmetic

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer AND(&), OR(|), XOR(^) arithmetic

v3: folded similar code into a "for-loop"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer immediate value

v3: folded similar code into a "for-loop"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Improve the accuracy of built-in function asin.

Method: asin(x) = x + (1 * x^3)/(2 * 3) + (1 * 3 * x^5)/(2*4 * 5) + \
(1 * 3 * 5 * x^7)/(2*4*6 * 7) + ...
Iterate this for 30 times.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Homer Hsing <homer.xing@intel.com>

support 64bit-integer addition, subtraction

also enable GPU command "subb" (subtract with borrow)

also add test cases

v2: renamed GEN_TYPE_UQ/GEN_TYPE_Q to GEN_TYPE_UL/GEN_TYPE_L

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Fix a bug in stack calculation.

1. the thread_id is located in r0.5[0-8], so we need to get the correct bits.
2. also, we don't need so much stack size, max_compute_unit have already
   been treated as: #EU * max_thread_per_eu.

Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Xing, Homer <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

support 64bit-integer reading(writing)

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

test if register allocation and 64-bit reading are fixed

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Song, Ruiling <ruiling.song@intel.com>

GBE: refactor double support.

There are two major issues in double support:
1. Doesn't work at SIMD16 mode.
2. The incorrect usage of vectors. We only need to allocate
those temporary register to contiguous registers.

If you look at the previous implementation of
READ_FLOAT64/WRITE_FLOAT64 in gen_encoder.cpp. You can easily
find it contains many duplicate code and considering the SIMD16
code path never work correctly, it's so difficult to work based
on that code. So I choose to refactor those two major functions.
And refine other parts in the instruction selection stage to fix
the above two major problem with a cleaner code.

Now, it works well on both SIMD16/SIMD8 mode.
Another minor improvement is for the READ_FLOAT64 on SIMD8 mode,
this patch saves one time of send instruction to read all the
8 double data into registers.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Homer Hsing <homer.xing@intel.com>

test built-in function "shuffle2"

v3: tested two implement of "shuffle2"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang, Rong R <rong.r.yang@intel.com>

add built-in function "shuffle2"

v3: convert address of "x" to a pointer, then select element by mask
v3: add two-component return-value overloaded version

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang, Rong R <rong.r.yang@intel.com>

Need to define local to __local.

It seems that the clang 3.3 already support local/global/private
memory space qualifiers directly. But the previous versions don't
support, we still need to define local as __local here.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Tested-by: Sun, Yi <yi.sun@intel.com>

Added memory space parameters support at the autogeneration script.

Enhance the python script to support pointer with memory space
type, such as :

gentype fract (gentype x, __global gentype *iptr)
gentype fract (gentype x, __local gentype *iptr)
gentype fract (gentype x, __private gentype *iptr)

So enable the following function at the builtin function spec file
fract/frexp/modf/nextafter/remquo/sincos.

Remove the duplicate at the ocl_stdlib.tmp.h.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>

utests: Add a test case for built-in functions get_num_groups.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

utest: Add test for built-in function get_local_id.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

utest: Add test for built-in function get_local_size.

Signed-off-by: Yi Sun <yi.sun@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Enable islessgreater/isordered/isunordered builtin vector functions.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add built-in function "isordered", "isunordered"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add built-in function "islessgreater"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add generated header and PCH to gitignore

Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Use access() instead of fopen() to search for PCH

Since all we want to do is find out whether the file exists and can be
read, use the appropriate function.

Signed-off-by: Simon Richter <Simon.Richter@hogyros.de>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Fix the indention handling in vector builtin function generator.

As OpenCL use .sa rather than .s10 to represent the tenth element
of a vector. We don't need to adjust one space when we cross the
tenth element (.sa) boundary.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add address space qualifier to "modf"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add address space qualifier to "remquo"

renamed origin "remquo" to "__gen_ocl_remquo",
added new "remquo" with address space qualifier

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>

revise built-in function "shuffle"

v2 from Zhigang:
Delete the 3-component vectors from the shuffle functions according
to the OpenCL spec.

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

Add misc builtin vector functions.

Although we don't support them yet.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Simon Richter <Simon.Richter@hogyros.de>

check whether python is installed.

We need python to do some source code generation things.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Simon Richter <Simon.Richter@hogyros.de>

Add the PCH support when building the source.

Because the utest grows bigger, the runtime compiling time seems a big
problem to cause the utest_run very slow.  Most of the time wastes on
re-parsing the big header file such as ocl_stdlib.h.
Using the PCH feature of Clang can shorten the compiling time a lot.
Because we build the pch file at building time, but some source
has runtime building option for LLVM, and these options may cause
the compitable problem between the pch header and the CL source code.
We fallback to build the whole header and source when we find the
options are not compitable.

v2 from Zhigang:
Based on junyan's patch, I made the following changes and fixing:
1. Change the way to find correct pch file, now we just define
two possible locations of the header file at build time. Don't
need to query the linker to get correct pch file directory.

2. Use python to generate a big blob of all ocl standard headers
into one file.

3. Fix those broken dependencies in the CMakeLists.txt, now it
works fine.

Signed-off-by: Junyan He <junyan.he@linux.intel.com>
Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: Simon Richter <Simon.Richter@hogyros.de>

Split the thounsands autogenerated code out from ocl_stdlib header file.

This patch split the three auto generated code segments from the
huge ocl_stdlib.h. And we rename ocl_stdlib.h to ocl_stdlib.tmpl.h.

The final ocl_stdlib.h will be generated at runtime. It will
insert the ocl_as.h/ocl_convert.h/ocl_vector (which is also
autogenerated at runtime) into ocl_stdlib.tmpl.h's proper positon.

After this patch, we will get a maintainable header file size.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Simon Richter <Simon.Richter@hogyros.de>

Implement a pyton script to auto generate those builtin vector functions.

As Beignet is using the SOA model, and we need to lower down all
the vector builtin functions to the scalar version. This type of
thing is ideal to use a script to generate all the code according
to the OpenCL's spec. I just copy/paste most of the prototypes from
the OpenCL spec and put them into builtin_vector_proto.def. Then
I wrote a python script to parse the spec and generate all the
vector inline functions and I removed all existing duplicate
functions in ocl_stdlib.h.

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>
Reviewed-by: He Junyan <junyan.he@inbox.com>
Reviewed-by: Simon Richter <Simon.Richter@hogyros.de>

test builtin function "shuffle"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

add builtin function "shuffle"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

Frexp support global memory directly

Signed-off-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add address_space modifier to builtin functions' pointer

I forgot that builtin functions' pointer should be modified
 by address_space such like "global", "local", "private"

Signed-off-by: Homer Hsing <homer.xing@intel.com>

test built-in function "remquo"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

add built-in function "remquo"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Reviewed-by: Yang Rong <rong.r.yang@intel.com>

test builtin function "modf"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Tested-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add builtin function "modf"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Tested-by: Zhigang Gong <zhigang.gong@linux.intel.com>

test built-in function "nextafter"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Tested-by: Zhigang Gong <zhigang.gong@linux.intel.com>

add built-in function "nextafter"

Signed-off-by: Homer Hsing <homer.xing@intel.com>
Tested-by: Zhigang Gong <zhigang.gong@linux.intel.com>