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| author | Uros Bizjak <ubizjak@gmail.com> | 2009-09-10 17:14:39 +0200 |
|---|---|---|
| committer | Uros Bizjak <uros@gcc.gnu.org> | 2009-09-10 17:14:39 +0200 |
| commit | 3a3d54f2fe6d6e9a56bdb79d92c635ddff9fa358 (patch) | |
| tree | 85d528eea7bb80b6b58720a9f4e5a3bd776005fc /gcc/expr.c | |
| parent | 1c6679e236a9cbe030ea9f57712b42c36fa1e199 (diff) | |
| download | gcc-3a3d54f2fe6d6e9a56bdb79d92c635ddff9fa358.zip gcc-3a3d54f2fe6d6e9a56bdb79d92c635ddff9fa358.tar.gz gcc-3a3d54f2fe6d6e9a56bdb79d92c635ddff9fa358.tar.bz2 | |
Revert:
2009-09-09 Uros Bizjak <ubizjak@gmail.com>
PR rtl-optimization/39779
* expr.c (convert_modes): Return when mode == oldmode after
CONST_INTs are processed.
testsuite/ChangeLog:
Revert:
2009-09-09 Uros Bizjak <ubizjak@gmail.com>
PR rtl-optimization/39779
* gcc.dg/pr39979.c: New test.
From-SVN: r151596
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 6 |
1 files changed, 3 insertions, 3 deletions
@@ -761,6 +761,9 @@ convert_modes (enum machine_mode mode, enum machine_mode oldmode, rtx x, int uns if (GET_MODE (x) != VOIDmode) oldmode = GET_MODE (x); + if (mode == oldmode) + return x; + /* There is one case that we must handle specially: If we are converting a CONST_INT into a mode whose size is twice HOST_BITS_PER_WIDE_INT and we are to interpret the constant as unsigned, gen_lowpart will do @@ -826,9 +829,6 @@ convert_modes (enum machine_mode mode, enum machine_mode oldmode, rtx x, int uns return gen_lowpart (mode, x); } - if (mode == oldmode) - return x; - /* Converting from integer constant into mode is always equivalent to an subreg operation. */ if (VECTOR_MODE_P (mode) && GET_MODE (x) == VOIDmode) |