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| author | Jakub Jelinek <jakub@redhat.com> | 2017-05-05 18:02:44 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2017-05-05 18:02:44 +0200 |
| commit | 8dc6a926f2eea6de3f1710a185eee5cfc052d6f8 (patch) | |
| tree | 80fe8750598ef749b39239ef296b2a5101858c36 /gcc/tree-switch-conversion.c | |
| parent | ac699a047f74de2bb8f1d538b07c89075cd25c84 (diff) | |
| download | gcc-8dc6a926f2eea6de3f1710a185eee5cfc052d6f8.zip gcc-8dc6a926f2eea6de3f1710a185eee5cfc052d6f8.tar.gz gcc-8dc6a926f2eea6de3f1710a185eee5cfc052d6f8.tar.bz2 | |
re PR tree-optimization/80632 (error: invalid PHI argument with -O2)
PR tree-optimization/80632
* tree-switch-conversion.c (struct switch_conv_info): Add target_vop
field.
(build_arrays): Initialize it for virtual phis.
(fix_phi_nodes): Use it for virtual phis.
* gcc.dg/pr80632.c: New test.
From-SVN: r247642
Diffstat (limited to 'gcc/tree-switch-conversion.c')
| -rw-r--r-- | gcc/tree-switch-conversion.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gcc/tree-switch-conversion.c b/gcc/tree-switch-conversion.c index 14e605d..0a2a840 100644 --- a/gcc/tree-switch-conversion.c +++ b/gcc/tree-switch-conversion.c @@ -581,6 +581,9 @@ struct switch_conv_info switch expression is out of range. */ tree *target_outbound_names; + /* VOP SSA_NAME. */ + tree target_vop; + /* The first load statement that loads a temporary from a new static array. */ gimple *arr_ref_first; @@ -1216,6 +1219,24 @@ build_arrays (gswitch *swtch, struct switch_conv_info *info) gphi *phi = gpi.phi (); if (!virtual_operand_p (gimple_phi_result (phi))) build_one_array (swtch, i++, arr_index_type, phi, tidx, info); + else + { + edge e; + edge_iterator ei; + FOR_EACH_EDGE (e, ei, info->switch_bb->succs) + { + if (e->dest == info->final_bb) + break; + if (!info->default_case_nonstandard + || e->dest != info->default_bb) + { + e = single_succ_edge (e->dest); + break; + } + } + gcc_assert (e && e->dest == info->final_bb); + info->target_vop = PHI_ARG_DEF_FROM_EDGE (phi, e); + } } } @@ -1279,7 +1300,7 @@ fix_phi_nodes (edge e1f, edge e2f, basic_block bbf, gphi *phi = gsi.phi (); tree inbound, outbound; if (virtual_operand_p (gimple_phi_result (phi))) - inbound = outbound = gimple_vop (cfun); + inbound = outbound = info->target_vop; else { inbound = info->target_inbound_names[i]; |