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| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-06 08:47:32 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-06 08:47:32 +0100 |
| commit | 8fec4d222f0a35925bfdc4641612120b06d51c59 (patch) | |
| tree | 952e2f159dfca22d9d68337bfb8c144769897cce /gcc/rtl.h | |
| parent | dba9c1fd276c07cd6a7cd432d71140931fa44c83 (diff) | |
| download | gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.zip gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.tar.gz gcc-8fec4d222f0a35925bfdc4641612120b06d51c59.tar.bz2 | |
re PR rtl-optimization/83682 (ICE in simplify_subreg, at simplify-rtx.c:6296)
PR rtl-optimization/83682
* rtl.h (const_vec_duplicate_p): Only return true for VEC_DUPLICATE
if it has non-VECTOR_MODE element mode.
(vec_duplicate_p): Likewise.
* gcc.target/i386/pr83682.c: New test.
From-SVN: r256308
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 7 |
1 files changed, 5 insertions, 2 deletions
@@ -2969,7 +2969,9 @@ const_vec_duplicate_p (T x, T *elt) *elt = CONST_VECTOR_ENCODED_ELT (x, 0); return true; } - if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == VEC_DUPLICATE) + if (GET_CODE (x) == CONST + && GET_CODE (XEXP (x, 0)) == VEC_DUPLICATE + && !VECTOR_MODE_P (GET_MODE (XEXP (XEXP (x, 0), 0)))) { *elt = XEXP (XEXP (x, 0), 0); return true; @@ -2984,7 +2986,8 @@ template <typename T> inline bool vec_duplicate_p (T x, T *elt) { - if (GET_CODE (x) == VEC_DUPLICATE) + if (GET_CODE (x) == VEC_DUPLICATE + && !VECTOR_MODE_P (GET_MODE (XEXP (x, 0)))) { *elt = XEXP (x, 0); return true; |