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authorkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>1994-08-07 12:50:40 +0000
committerkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>1994-08-07 12:50:40 +0000
commit0871512765b4212d14841d14cab11f8a008049f2 (patch)
tree4ca4c9f9611b25794290f176eea004ed849271d5 /gcc/regs.h
parentf3ba5c6a46451d8ce4a1a6283683acf071d855ff (diff)
downloadgcc-0871512765b4212d14841d14cab11f8a008049f2.tar.gz
(reg_changes_size): Add declaration.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@7863 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/regs.h')
-rw-r--r--gcc/regs.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/regs.h b/gcc/regs.h
index 47463bf3a7b..1b394b20c6e 100644
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -1,5 +1,5 @@
/* Define per-register tables for data flow info and register allocation.
- Copyright (C) 1987, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1993, 1994 Free Software Foundation, Inc.
This file is part of GNU CC.
@@ -53,6 +53,12 @@ extern short *reg_n_sets;
extern short *reg_n_deaths;
+/* Indexed by N; says whether a psuedo register N was ever used
+ within a SUBREG that changes the size of the reg. Some machines prohibit
+ such objects to be in certain (usually floating-point) registers. */
+
+extern char *reg_changes_size;
+
/* Get the number of consecutive words required to hold pseudo-reg N. */
#define PSEUDO_REGNO_SIZE(N) \