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Fix problem reported by chris@lslsun.epfl.ch (Christian Iseli)

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Fix problem reported by chris@lslsun.epfl.ch (Christian Iseli)
	* emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
	create new subreg.

From-SVN: r15391
This commit is contained in:
Jim Wilson 1997-09-10 15:04:24 -07:00
parent becdcf6da0
commit 04395f964f
2 changed files with 7 additions and 2 deletions
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7
gcc/ChangeLog
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@ -1,8 +1,13 @@
Wed Sep 10 14:58:40 1997 Jim Wilson <wilson@cygnus.com>
* emit-rtl.c (gen_lowpart_common): For a SUBREG, add in word when
create new subreg.
Wed Sep 10 15:19:22 1997 Jeffrey A Law (law@cygnus.com)
* config.sub: Accept 'amigados' for backward compatability.
Wed Sep 10 14:05:08 1997 Jim Wilson <wilson@cygnus.com>
Wed Sep 10 14:05:08 1997 H.J. Lu (hjl@gnu.ai.mit.edu)
* Makefile.in (testsuite/site.exp): New target.
(check-gcc, check-g++): Depend on testsuite/site.exp.

2
gcc/emit-rtl.c
View File

@ -664,7 +664,7 @@ gen_lowpart_common (mode, x)
|| GET_MODE_SIZE (mode) == GET_MODE_UNIT_SIZE (GET_MODE (x))))
return (GET_MODE (SUBREG_REG (x)) == mode && SUBREG_WORD (x) == 0
? SUBREG_REG (x)
: gen_rtx (SUBREG, mode, SUBREG_REG (x), SUBREG_WORD (x)));
: gen_rtx (SUBREG, mode, SUBREG_REG (x), SUBREG_WORD (x) + word));
else if (GET_CODE (x) == REG)
{
/* If the register is not valid for MODE, return 0. If we don't