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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2012-11-28 21:45:03 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2012-11-28 21:45:03 +0000 |
| commit | 373b9e782b20f12f8d62a258b68e25f9e249124a (patch) | |
| tree | 5a0889a54ea81d229c3829d0a07454d20ff7e0e5 | |
| parent | 74c49505d071e2d5d81a8b9e1708f35f81eab09d (diff) | |
| download | gcc-373b9e782b20f12f8d62a258b68e25f9e249124a.zip gcc-373b9e782b20f12f8d62a258b68e25f9e249124a.tar.gz gcc-373b9e782b20f12f8d62a258b68e25f9e249124a.tar.bz2 | |
re PR tree-optimization/55052 (vect-widening tests are failing and giving wrong results)
gcc/
PR rtl-optimization/55052
* simplify-rtx.c (simplify_subreg): Restore SCALAR_INT_MODE_P check.
From-SVN: r193909
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 83edb9b..b4febea 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-11-28 Richard Sandiford <rdsandiford@googlemail.com> + + PR rtl-optimization/55052 + * simplify-rtx.c (simplify_subreg): Restore SCALAR_INT_MODE_P check. + 2012-11-28 David Edelsohn <dje.gcc@gmail.com> * target.def (use_blocks_for_decl_p): New hook. diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 46d9e8a..f26f008 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -5875,7 +5875,7 @@ simplify_subreg (enum machine_mode outermode, rtx op, /* A SUBREG resulting from a zero extension may fold to zero if it extracts higher bits that the ZERO_EXTEND's source bits. */ - if (GET_CODE (op) == ZERO_EXTEND) + if (GET_CODE (op) == ZERO_EXTEND && SCALAR_INT_MODE_P (innermode)) { unsigned int bitpos = subreg_lsb_1 (outermode, innermode, byte); if (bitpos >= GET_MODE_PRECISION (GET_MODE (XEXP (op, 0)))) |