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| author | Richard Biener <rguenther@suse.de> | 2016-06-29 07:52:35 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-06-29 07:52:35 +0000 |
| commit | 36d0d9be5585ccc0ea8a44e6d4e93d8d0f7f53a0 (patch) | |
| tree | f7fb8843971544489a0782780ca909307692ccd7 /gcc | |
| parent | 4aa83879c93d2367f5245c94bd2f12c19f486dae (diff) | |
| download | gcc-36d0d9be5585ccc0ea8a44e6d4e93d8d0f7f53a0.zip gcc-36d0d9be5585ccc0ea8a44e6d4e93d8d0f7f53a0.tar.gz gcc-36d0d9be5585ccc0ea8a44e6d4e93d8d0f7f53a0.tar.bz2 | |
re PR tree-optimization/68961 (Test case gcc.target/powerpc/pr60203.c fails since r231674)
2016-06-29 Richard Biener <rguenther@suse.de>
PR rtl-optimization/68961
* simplify-rtx.c (simplify_subreg): Handle VEC_CONCAT like CONCAT.
From-SVN: r237840
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 14 |
2 files changed, 14 insertions, 5 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e57c1a9..7f6dcb3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2016-06-29 Richard Biener <rguenther@suse.de> + PR rtl-optimization/68961 + * simplify-rtx.c (simplify_subreg): Handle VEC_CONCAT like CONCAT. + +2016-06-29 Richard Biener <rguenther@suse.de> + PR middle-end/71002 * alias.c (component_uses_parent_alias_set_from): Handle type punning through union accesses by using the union alias set. diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 2203ff7..a23a6f5 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -6108,9 +6108,10 @@ simplify_subreg (machine_mode outermode, rtx op, && GET_MODE_SIZE (outermode) <= GET_MODE_SIZE (GET_MODE (op))) return adjust_address_nv (op, outermode, byte); - /* Handle complex values represented as CONCAT - of real and imaginary part. */ - if (GET_CODE (op) == CONCAT) + /* Handle complex or vector values represented as CONCAT or VEC_CONCAT + of two parts. */ + if (GET_CODE (op) == CONCAT + || GET_CODE (op) == VEC_CONCAT) { unsigned int part_size, final_offset; rtx part, res; @@ -6130,10 +6131,13 @@ simplify_subreg (machine_mode outermode, rtx op, if (final_offset + GET_MODE_SIZE (outermode) > part_size) return NULL_RTX; - res = simplify_subreg (outermode, part, GET_MODE (part), final_offset); + enum machine_mode part_mode = GET_MODE (part); + if (part_mode == VOIDmode) + part_mode = GET_MODE_INNER (GET_MODE (op)); + res = simplify_subreg (outermode, part, part_mode, final_offset); if (res) return res; - if (validate_subreg (outermode, GET_MODE (part), part, final_offset)) + if (validate_subreg (outermode, part_mode, part, final_offset)) return gen_rtx_SUBREG (outermode, part, final_offset); return NULL_RTX; } |