From 6d9c02aea3e902633ca62b220686580705bdcaf8 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Fri, 11 Nov 2011 14:56:49 -0500
Subject: [PATCH] 6a, 8a: allow $(-1) for consistency with $1, $(1), $-1.

R=ken2
CC=golang-dev
https://golang.org/cl/5373074
---
 src/cmd/6a/a.y | 6 ++++++
 src/cmd/8a/a.y | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/src/cmd/6a/a.y b/src/cmd/6a/a.y
index c0fa4106e7..8459ff3233 100644
--- a/src/cmd/6a/a.y
+++ b/src/cmd/6a/a.y
@@ -429,6 +429,12 @@ imm:
 		$$.type = D_FCONST;
 		$$.dval = $3;
 	}
+|	'$' '(' '-' LFCONST ')'
+	{
+		$$ = nullgen;
+		$$.type = D_FCONST;
+		$$.dval = -$4;
+	}
 |	'$' '-' LFCONST
 	{
 		$$ = nullgen;
diff --git a/src/cmd/8a/a.y b/src/cmd/8a/a.y
index 96976089de..f1881808fe 100644
--- a/src/cmd/8a/a.y
+++ b/src/cmd/8a/a.y
@@ -392,6 +392,12 @@ imm:
 		$$.type = D_FCONST;
 		$$.dval = $3;
 	}
+|	'$' '(' '-' LFCONST ')'
+	{
+		$$ = nullgen;
+		$$.type = D_FCONST;
+		$$.dval = -$4;
+	}
 |	'$' '-' LFCONST
 	{
 		$$ = nullgen;