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6a, 8a: allow $(-1) for consistency with $1, $(1), $-1.

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R=ken2
CC=golang-dev
https://golang.org/cl/5373074
This commit is contained in:
Russ Cox 2011-11-11 14:56:49 -05:00
parent 351daf8788
commit 6d9c02aea3
2 changed files with 12 additions and 0 deletions
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6
src/cmd/6a/a.y
View File

@ -429,6 +429,12 @@ imm:
$$.type = D_FCONST; $$.type = D_FCONST;
$$.dval = $3; $$.dval = $3;
} }
| '$' '(' '-' LFCONST ')'
{
$$ = nullgen;
$$.type = D_FCONST;
$$.dval = -$4;
}
| '$' '-' LFCONST | '$' '-' LFCONST
{ {
$$ = nullgen; $$ = nullgen;

6
src/cmd/8a/a.y
View File

@ -392,6 +392,12 @@ imm:
$$.type = D_FCONST; $$.type = D_FCONST;
$$.dval = $3; $$.dval = $3;
} }
| '$' '(' '-' LFCONST ')'
{
$$ = nullgen;
$$.type = D_FCONST;
$$.dval = -$4;
}
| '$' '-' LFCONST | '$' '-' LFCONST
{ {
$$ = nullgen; $$ = nullgen;