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| author | Segher Boessenkool <segher@kernel.crashing.org> | 2015-11-16 16:51:33 +0100 |
|---|---|---|
| committer | Segher Boessenkool <segher@gcc.gnu.org> | 2015-11-16 16:51:33 +0100 |
| commit | 7d006b0d3477fc9463edd970868107a5f98e5c57 (patch) | |
| tree | 6c7dc8b0f682801f705190ef1105fa30834b1e89 /gcc/fortran/expr.c | |
| parent | 513ecaea6f71665e75458188d26432c627392cc0 (diff) | |
| download | gcc-7d006b0d3477fc9463edd970868107a5f98e5c57.zip gcc-7d006b0d3477fc9463edd970868107a5f98e5c57.tar.gz gcc-7d006b0d3477fc9463edd970868107a5f98e5c57.tar.bz2 | |
simplify-rtx: Simplify sign_extend of lshiftrt to zero_extend (PR68330)
Since r230164, in PR68330 combine ends up with a sign_extend of an
lshiftrt by some constant, and it does not know to morph that into a
zero_extract (the extend will always extend with zeroes). I think
it is best to let simplify-rtx always replace such a sign_extend by
a zero_extend, after which everything works as expected.
2015-11-15 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/68330
* simplify-rtx.c (simplify_unary_operation_1): Simplify SIGN_EXTEND
of LSHIFTRT by a non-zero constant integer.
From-SVN: r230429
Diffstat (limited to 'gcc/fortran/expr.c')
0 files changed, 0 insertions, 0 deletions