From: Eric Botcazou Date: Tue, 10 Jan 2006 18:50:07 +0000 (+0100) Subject: re PR rtl-optimization/25367 (-O1 -funroll-loops leads to segfault) X-Git-Tag: releases/gcc-4.2.0~4946 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e31a196782fe570814cfa9c6098d7d702810c553;p=thirdparty%2Fgcc.git re PR rtl-optimization/25367 (-O1 -funroll-loops leads to segfault) PR rtl-optimization/25367 * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro. From-SVN: r109551 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 3a8728292f29..92fa318a494b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-01-10 Eric Botcazou + + PR rtl-optimization/25367 + * config/sparc/sparc.h (HARD_REGNO_RENAME_OK): New macro. + 2006-01-10 Hans-Peter Nilsson PR target/25718 diff --git a/gcc/config/sparc/sparc.h b/gcc/config/sparc/sparc.h index a72cc90910b6..bb4647c1e862 100644 --- a/gcc/config/sparc/sparc.h +++ b/gcc/config/sparc/sparc.h @@ -884,6 +884,11 @@ extern int sparc_mode_class[]; #define HARD_REGNO_MODE_OK(REGNO, MODE) \ ((hard_regno_mode_classes[REGNO] & sparc_mode_class[MODE]) != 0) +/* Value is 1 if it is OK to rename a hard register FROM to another hard + register TO. We cannot rename %g1 as it may be used before the save + register window instruction in the prologue. */ +#define HARD_REGNO_RENAME_OK(FROM, TO) ((FROM) != 1) + /* Value is 1 if it is a good idea to tie two pseudo registers when one has mode MODE1 and one has mode MODE2. If HARD_REGNO_MODE_OK could produce different values for MODE1 and MODE2,