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reload.c (push_reload): If WORD_REGISTER_OPERATIONS... 

* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
        SUBREG_REG if the word count is unchanged, also in the input reload
        case.  Disable non-applicable sanity checks.

From-SVN: r17541
This commit is contained in:
J"orn Rennecke 1998-01-28 19:09:41 +00:00 committed by Jeff Law
parent 90ad3ab77d
commit d2c92f5a43
2 changed files with 15 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed Jan 28 20:11:06 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
* reload.c (push_reload): If WORD_REGISTER_OPERATIONS, reload the
SUBREG_REG if the word count is unchanged, also in the input reload
case. Disable non-applicable sanity checks.
Wed Jan 28 20:08:26 1998 Jeffrey A Law (law@cygnus.com)
* config/t-svr4 (TARGET_LIBGCC2_CFLAGS): Add -fPIC.

11
gcc/reload.c
View File

@ -885,6 +885,13 @@ push_reload (in, out, inloc, outloc, class,
> GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))))
&& INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (in)))
&& LOAD_EXTEND_OP (GET_MODE (SUBREG_REG (in))) != NIL)
#endif
#ifdef WORD_REGISTER_OPERATIONS
|| ((GET_MODE_SIZE (inmode)
< GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))))
&& ((GET_MODE_SIZE (inmode) - 1) / UNITS_PER_WORD ==
((GET_MODE_SIZE (GET_MODE (SUBREG_REG (in))) - 1)
/ UNITS_PER_WORD)))
#endif
))
|| (GET_CODE (SUBREG_REG (in)) == REG
@ -923,7 +930,7 @@ push_reload (in, out, inloc, outloc, class,
in_subreg_loc = inloc;
inloc = &SUBREG_REG (in);
in = *inloc;
#ifndef LOAD_EXTEND_OP
#if ! defined (LOAD_EXTEND_OP) && ! defined (WORD_REGISTER_OPERATIONS)
if (GET_CODE (in) == MEM)
/* This is supposed to happen only for paradoxical subregs made by
combine.c. (SUBREG (MEM)) isn't supposed to occur other ways. */
@ -1027,7 +1034,7 @@ push_reload (in, out, inloc, outloc, class,
out_subreg_loc = outloc;
outloc = &SUBREG_REG (out);
out = *outloc;
#ifndef LOAD_EXTEND_OP
#if ! defined (LOAD_EXTEND_OP) && ! defined (WORD_REGISTER_OPERATIONS)
if (GET_CODE (out) == MEM
&& GET_MODE_SIZE (GET_MODE (out)) > GET_MODE_SIZE (outmode))
abort ();