From: Ken Thompson <ken@golang.org>
Date: Sun, 9 Aug 2009 23:42:21 +0000 (-0700)
Subject: increase from 3 to 11 floating registers
X-Git-Tag: weekly.2009-11-06~924
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=60238e25bfd5b5384fa60f05919ddb9defcb28a6;p=gostls13.git

increase from 3 to 11 floating registers

R=rsc
OCL=32947
CL=32947
---

diff --git a/src/cmd/6g/reg.c b/src/cmd/6g/reg.c
index f9704f202b..4f7ce069fe 100644
--- a/src/cmd/6g/reg.c
+++ b/src/cmd/6g/reg.c
@@ -1439,9 +1439,9 @@ BtoR(int32 b)
 
 /*
  *	bit	reg
- *	16	X5
- *	17	X6
- *	18	X7
+ *	16	X5 (FREGMIN)
+ *	...
+ *	26	X15 (FREGEXT)
  */
 int32
 FtoB(int f)
@@ -1455,7 +1455,7 @@ int
 BtoF(int32 b)
 {
 
-	b &= 0x70000L;
+	b &= 0xFF0000L;
 	if(b == 0)
 		return 0;
 	return bitno(b) - 16 + FREGMIN;
diff --git a/src/cmd/6l/6.out.h b/src/cmd/6l/6.out.h
index dc1d057fd1..292abd3a73 100644
--- a/src/cmd/6l/6.out.h
+++ b/src/cmd/6l/6.out.h
@@ -839,7 +839,7 @@ enum
 	REGTMP		= D_DI,
 	REGEXT		= D_R15,	/* compiler allocates external registers R15 down */
 	FREGMIN		= D_X0+5,	/* first register variable */
-	FREGEXT		= D_X0+7	/* first external register */
+	FREGEXT		= D_X0+15	/* first external register */
 };
 
 /*