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| author | Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> | 1998-10-22 15:48:47 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1998-10-22 09:48:47 -0600 |
| commit | 86219cc76f52066bc849b7693fe0bc5ebf41503d (patch) | |
| tree | 270ce0b12b84ef428fc1dfd6d44bd996d1165aad /gcc | |
| parent | db1b5e8135ad094bb6a8a7f78d857272603dec49 (diff) | |
| download | gcc-86219cc76f52066bc849b7693fe0bc5ebf41503d.zip gcc-86219cc76f52066bc849b7693fe0bc5ebf41503d.tar.gz gcc-86219cc76f52066bc849b7693fe0bc5ebf41503d.tar.bz2 | |
loop.c (express_from): Make sure that when generating a PLUS of a PLUS...
* loop.c (express_from): Make sure that when generating a PLUS of
a PLUS, any constant expression appears on the outermost PLUS.
From-SVN: r23226
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/loop.c | 13 |
2 files changed, 17 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d6be33b..f1e6985 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +Thu Oct 22 16:46:35 1998 Bernd Schmidt <crux@pool.informatik.rwth-aachen.de> + + * loop.c (express_from): Make sure that when generating a PLUS of + a PLUS, any constant expression appears on the outermost PLUS. + Thu Oct 22 15:46:23 1998 Per Bothner (bothner@cygnus.com) * Makefile.in (distdir-cvs, distdir-start): Clean up so it @@ -6221,7 +6221,18 @@ express_from (g1, g2) if (add == const0_rtx) return mult; else - return gen_rtx_PLUS (g2->mode, mult, add); + { + if (GET_CODE (add) == PLUS + && CONSTANT_P (XEXP (add, 1))) + { + rtx tem = XEXP (add, 1); + mult = gen_rtx_PLUS (g2->mode, mult, XEXP (add, 0)); + add = tem; + } + + return gen_rtx_PLUS (g2->mode, mult, add); + } + } /* Return an rtx, if any, that expresses giv G2 as a function of the register |