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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-07 08:50:40 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-07 08:50:40 -0400 |
| commit | ffceec83e49688e6081299ed6d35d03dffdf3b7e (patch) | |
| tree | 4ca4c9f9611b25794290f176eea004ed849271d5 /gcc/regs.h | |
| parent | a292b002ee20e8c1908b87a015e54b27873ce97a (diff) | |
| download | gcc-ffceec83e49688e6081299ed6d35d03dffdf3b7e.zip gcc-ffceec83e49688e6081299ed6d35d03dffdf3b7e.tar.gz gcc-ffceec83e49688e6081299ed6d35d03dffdf3b7e.tar.bz2 | |
(reg_changes_size): Add declaration.
From-SVN: r7863
Diffstat (limited to 'gcc/regs.h')
| -rw-r--r-- | gcc/regs.h | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -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) \ |