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Choose type for integer literals to match the target mask size (if possible).

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On a target with a 16-bit mask (for example), we would choose the type
of an integer literal "1024" to be an int16.  Previously, we used an int32,
which is a worse fit and leads to less efficient code than an int16
on a 16-bit mask target.  (However, we'd still give an integer literal
1000000 the type int32, even in a 16-bit target.)

Updated the tests to still pass with 8 and 16-bit targets, given this
change.
This commit is contained in:
Matt Pharr
2013-07-23 17:01:03 -07:00
parent 9ba49eabb2
commit f7f281a256
61 changed files with 166 additions and 120 deletions
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23
parse.yy
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@@ -179,6 +179,8 @@ struct ForeachDimension {
}
%token TOKEN_INT8_CONSTANT TOKEN_UINT8_CONSTANT
%token TOKEN_INT16_CONSTANT TOKEN_UINT16_CONSTANT
%token TOKEN_INT32_CONSTANT TOKEN_UINT32_CONSTANT
%token TOKEN_INT64_CONSTANT TOKEN_UINT64_CONSTANT
%token TOKEN_INT32DOTDOTDOT_CONSTANT TOKEN_UINT32DOTDOTDOT_CONSTANT
@@ -291,6 +293,22 @@ primary_expression
Error(@1, "Undeclared symbol \"%s\".%s", name, alts.c_str());
}
}
| TOKEN_INT8_CONSTANT {
$$ = new ConstExpr(AtomicType::UniformInt8->GetAsConstType(),
(int8_t)yylval.intVal, @1);
}
| TOKEN_UINT8_CONSTANT {
$$ = new ConstExpr(AtomicType::UniformUInt8->GetAsConstType(),
(uint8_t)yylval.intVal, @1);
}
| TOKEN_INT16_CONSTANT {
$$ = new ConstExpr(AtomicType::UniformInt16->GetAsConstType(),
(int16_t)yylval.intVal, @1);
}
| TOKEN_UINT16_CONSTANT {
$$ = new ConstExpr(AtomicType::UniformUInt16->GetAsConstType(),
(uint16_t)yylval.intVal, @1);
}
| TOKEN_INT32_CONSTANT {
$$ = new ConstExpr(AtomicType::UniformInt32->GetAsConstType(),
(int32_t)yylval.intVal, @1);
@@ -1233,7 +1251,10 @@ declarator
;
int_constant
: TOKEN_INT32_CONSTANT { $$ = yylval.intVal; }
: TOKEN_INT8_CONSTANT { $$ = yylval.intVal; }
| TOKEN_INT16_CONSTANT { $$ = yylval.intVal; }
| TOKEN_INT32_CONSTANT { $$ = yylval.intVal; }
| TOKEN_INT64_CONSTANT { $$ = yylval.intVal; }
;
direct_declarator