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assembler: distinguish the channel of .z from the condition of .z

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The scratch patch only works for generic register

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75631
Tested-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
This commit is contained in:
Xiang, Haihao 2014-03-25 13:55:14 +08:00 committed by Damien Lespiau
parent 881afff297
commit 737d248a12
1 changed files with 45 additions and 0 deletions
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45
assembler/lex.l
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@ -24,6 +24,8 @@ int yycolumn = 1;
%x CHANNEL
%x LINENUMBER
%x FILENAME
%x REG
%x DOTSEL
%%
\/\/.*[\r\n] { yycolumn = 1; } /* eat up single-line comments */
@ -247,8 +249,46 @@ yylval.integer = BRW_CHANNEL_W;
[gr][0-9]+ {
yylval.integer = atoi(yytext + 1);
BEGIN(REG);
return GENREG;
}
<REG>"<" { return LANGLE; }
<REG>[0-9][0-9]* {
yylval.integer = strtoul(yytext, NULL, 10);
return INTEGER;
}
<REG>">" { return RANGLE; }
<REG>"," { return COMMA; }
<REG>"." { BEGIN(DOTSEL); return DOT; }
<REG>";" { return SEMICOLON; }
<DOTSEL>"x" {
yylval.integer = BRW_CHANNEL_X;
return X;
}
<DOTSEL>"y" {
yylval.integer = BRW_CHANNEL_Y;
return Y;
}
<DOTSEL>"z" {
yylval.integer = BRW_CHANNEL_Z;
return Z;
}
<DOTSEL>"w" {
yylval.integer = BRW_CHANNEL_W;
return W;
}
<DOTSEL>[0-9][0-9]* {
yylval.integer = strtoul(yytext, NULL, 10);
BEGIN(REG);
return INTEGER;
}
<DOTSEL>. {
yyless(0);
BEGIN(INITIAL);
}
[gr] {
return GENREGFILE;
}
@ -296,6 +336,11 @@ yylval.integer = BRW_CHANNEL_W;
return LMS;
}
<REG>. {
yyless(0);
BEGIN(INITIAL);
}
/*
* Lexing of register types should probably require the ":" symbol specified
* in the BNF of the assembly, but our existing source didn't use that syntax.