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184 Commits

Author SHA1 Message Date
Homer Hsing
741008e050 Fix field length of JIP for one-offset-branch in Gen6 
Such JIP has 25 bits length in Gen6.
 2013-03-04 15:54:33 +00:00
Homer Hsing
6983eebf47 Automatically run all test cases. 
In the past test/run-test.sh run only one test case per call.
This patch let it automatically run all test cases.
 2013-03-04 15:54:32 +00:00
Homer Hsing
1c009349bc Fix missing environment variables problem in test/run-test.sh 
Currently test/run-test.sh cannot get the value of ${srcdir} and
${top_builddir}. Thus we cannot run any test case. This patch uses
$0 to get the absolute path of run-test.sh. Now test cases work.
 2013-03-04 15:54:32 +00:00
Homer Hsing
868cbf7dc5 Add a generic hash table algorithm. Reuse for declared_reg_table and label_table in the future. 
Rewrite find_register() and insert_register(). The hash table code
has been extracted. We may use those code for label table in the future.
 2013-03-04 15:54:32 +00:00
Homer Hsing
131f61f2ef Add a test case for ".declare" pragma 2013-03-04 15:54:32 +00:00
Homer Hsing
c3bcc7dbeb Rename brw_instruction.bits3.if_else to branch 
Because that field will be used for all branch instructions
 2013-03-04 15:54:32 +00:00
Homer Hsing
bebe8179e1 According to BSPEC, put PLN & BFI1 to binaryop, put SUBB to binaryaccop 
bspec: BFI1 should not access accumulator. PLN should not use accumulator
as source.
future work in gram.y: show warning if acc is used as dest for
ADDC/SUBB/CMP/CMPN/SHL/BFI1.
 2013-03-04 15:54:32 +00:00
Homer Hsing
74383f4db4 Explain the difference between binaryinstruction and binaryaccinstruction 
Developers may add new instructions in wrong place in the future
if they don't know the difference between binaryinstruction and
binaryaccinstruction.
 2013-03-04 15:54:32 +00:00
Homer Hsing
375d1fd7b2 Renaming according to BSPEC: jump_count -> JIP; pop_count -> UIP. 
Since bspec SNB+, jump_count and pop_count is renamed to JIP and uIP.
 2013-03-04 15:54:32 +00:00
Homer Hsing
6171c61e0c Use bits3.if_else.jump_count instead of bits3.ud for readability 2013-03-04 15:54:32 +00:00
Homer Hsing
5defbd37b6 Pad NOP instructions instead of the ILLEGAL instruction for entry 
If a label is an entry, the assembler will pad empty instruction
before the label until offset % 4 == 0. In the past, the ILLEGAL
instructions are padded. It may raise exceptions. We use the NOP
instructions instead.
 2013-03-04 15:54:32 +00:00
Homer Hsing
e6d61ac202 Merge same if branches in declare_pragma section in gram.y 2013-03-04 15:54:32 +00:00
Homer Hsing
c19f8338d7 Reduce memory cost in entry_table 
Original code double entry table space if there is no space. It may
waste 50% memory of the entry table. Now we use a link list to store
entry items.
 2013-03-04 15:54:32 +00:00
Homer Hsing
f02a1ed427 Make the entry point padding code logic looks nicer 2013-03-04 15:54:32 +00:00
Homer Hsing
73ab2f6a68 Fix a typo in src/main.c: "in unit of type" -> "in unit of byte" 2013-03-04 15:54:32 +00:00
Homer Hsing
7186723f81 Reduce hash value collision probability in src/main.c 
Original code use "hash_value = *name++", which may produce
hash value collision for word permutations like "abc", "bac" and "cba".
 2013-03-04 15:54:32 +00:00
Homer Hsing
940522588a Move program_defaults init statement into variable declaration 
In original code, the init value for "program_defaults.register_type"
is put inside main(), which may be hard to maintain.
 2013-03-04 15:54:31 +00:00
Homer Hsing
77dcc41cfd Better comment text. Change "c like" to "C style" in main.c 2013-03-04 15:54:31 +00:00
Homer Hsing
81859af110 Replace bzero by memset. 
bzero has been removed from POSIX.1-2008. Should use memset instead.
 2013-03-04 15:54:31 +00:00
Homer Hsing
b1ef3bc209 Supporting integer subtraction with borrow 
subb: subtract unsigned integer src1 from src0. store the result
in dst and store the borrow (0 or 1) as a 32-bit value in acc.
 2013-03-04 15:54:31 +00:00
Homer Hsing
9e711a4f2c Supporting find first bit instructions 
fbh: Find the first significant bit searching from the high bits
in src0 and store the result in dst.

fbl: Find the first 1 bit searching from the low bits in src0
and store the result in dst.
 2013-03-04 15:54:31 +00:00
Homer Hsing
b094cd8648 Supporting half precision to single precision float convertion 
The f16to32 instruction converts the half precision float
in src0 to single precision float and storing in dst.

The f32to16 instruction converts the single precision float
in src0 to half precision float and storing in the lower word
of each channel in dst.
 2013-03-04 15:54:31 +00:00
Homer Hsing
4285d9c2ce Supporting count bit set instruction 
The cbit instruction counts component-wise the total bits set
in src0 and stores the resulting counts in dst.
 2013-03-04 15:54:31 +00:00
Homer Hsing
d4f48a7271 Supporting instruction "reverse bits" 
The bfrev instruction component-wise reverses all the bits in src0
and stores the results in dst.
 2013-03-04 15:54:31 +00:00
Homer Hsing
4d6337dfaf Supporting instruction Bit Field Insert 1 
The bfi1 instruction component-wise generates mask with control
from src0 and src1 and stores the results in dst.
 2013-03-04 15:54:31 +00:00
Homer Hsing
5777bfa91f Delete an extra space character in brw_defines.h 
Now the column is aligned and the code is nicer.
 2013-03-04 15:54:31 +00:00
Homer Hsing
c3f1e0a732 Supporting addc instruction 
The addc instruction performs component-wise addition of
src0 and src1 and stores the results in dst;
it also stores the carry into acc.
 2013-03-04 15:54:31 +00:00
Homer Hsing
8ca55688ea Supporting bit field extract and bit field insert 2 
Supporting two new operators, bfe and bfi2
bfe: Component-wise extracts a bit field from src2 using the bit field width from src0 and the bit field offset from src1.
bfi2: component-wise performs the bitfield insert operation on src1 and src2 based on the mask in src0.
 2013-03-04 15:54:31 +00:00
Homer Hsing
210510cebb Supporting LRP: dest = src0 * src1 + (1-src0) * src2 2013-03-04 15:54:31 +00:00
Homer Hsing
a034bcbd04 Support trinary source instruction "multiply add". 
MAD (Multiply ADd) computes dst <- src1*src2 + src0.

Tried best to follow previous variable naming habit.

Also renamed "triinstruction" -> "trinaryinstruction" in grammar parser
for better readability.
 2013-03-04 15:54:31 +00:00
Homer Hsing
0d3f8495ea add data structure in src/brw_structs.h for supporting three-source-operator instruncions 2013-03-04 15:54:30 +00:00
Homer Hsing
75f1d80982 Comment magic words "da1", "da16", "ia1", and "ia16" 2013-03-04 15:54:30 +00:00
Homer Hsing
aab7cd5cc5 close File yyin before calling yylex_destroy 
This patch makes sure file handler yyin is closed.
yylex_destroy() calls yy_init_globals(), which reset yyin to 0.
Therefore if we do not close yyin before yylex_destroy(), yyin
will not be closed anymore.
 2013-03-04 15:54:30 +00:00
Homer Hsing
31401afe78 Call yylex_destroy() to free memory after yyparse() 2013-03-04 15:54:30 +00:00
Homer Hsing
302ca73198 Close input file handler yyin after yyparse 2013-03-04 15:54:30 +00:00
Homer Hsing
f282ea689b Fix a typo ... lable -> label 2013-03-04 15:54:30 +00:00
Lu Guanqun
ea1fcf0b44 fix the label checking logics 
Signed-off-by: Lu Guanqun <guanqun.lu@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
4d75db550e Waring if both predication and conditional modifier are enabled but use different flag registers 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
3ffbe96c1e Add support for flag register f1 on Ivy bridge 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
2f772dd67b s/flag_reg_nr/flag_subreg_nr for an instruction 
s/flagreg/flag_subreg_nr for a condition

They are flag subregister number indeed

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
968d2d7ef6 Remove flag_reg_nr from the DW3 of an instruction 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
f3f6ba24e6 Change the rule for flag register 
The shift/reduce conflict mentioned in the comment has been fixed, so
flagreg can return the reg number in the lvalue now. In addition, it will
be easy to add support for flag register f1 on Ivy bridge

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Xiang, Haihao
128053f120 Accept symbol register as the leading register of the request 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:30 +00:00
Ben Widawsky
fc2995b59a disasm: decode SENDC like SEND 
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
 2013-03-04 15:54:29 +00:00
Ben Widawsky
35c217b986 disasm: add gen6 style send decoding 
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
 2013-03-04 15:54:29 +00:00
Ben Widawsky
22505dc051 disasm: add sendc 
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
 2013-03-04 15:54:29 +00:00
Ben Widawsky
26c36abdf6 disasm: add pln instruction 
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
 2013-03-04 15:54:29 +00:00
Xiang, Haihao
0b5f7fa049 A new syntax of SEND intruction on Ivybridge 
[(<pred>)] send (<exec_size>) reg greg imm6 reg32a

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:29 +00:00
Xiang, Haihao
d6bc0e4ea3 bump version to 1.2 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:29 +00:00
Xiang, Haihao
86f8ca6af9 Support VME on Ivybridge 
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
 2013-03-04 15:54:29 +00:00