[Bug tree-optimization/91162] [7/8 Regression] ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:86 (error: invalid 'PHI' argument)

2019-08-30 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91162

--- Comment #8 from Richard Biener  ---
Author: rguenth
Date: Fri Aug 30 11:39:19 2019
New Revision: 275100

URL: https://gcc.gnu.org/viewcvs?rev=275100&root=gcc&view=rev
Log:
2019-08-30  Richard Biener  

Backport from mainline
2019-08-12  Richard Biener  

PR lto/91375
* tree.c (free_lang_data_in_type): Do not free TYPE_BINFO dependent on
flag_devirtualize.

2019-07-31  Richard Biener  

PR tree-optimization/91293
* tree-vect-slp.c (vect_build_slp_tree_2): Do not swap operands
of reduction stmts.

* gcc.dg/vect/pr91293-1.c: New testcase.
* gcc.dg/vect/pr91293-2.c: Likewise.
* gcc.dg/vect/pr91293-3.c: Likewise.

2019-07-31  Richard Biener  

PR tree-optimization/91280
* tree-ssa-structalias.c (get_constraint_for_component_ref):
Decompose MEM_REF manually for offset handling.

* g++.dg/torture/pr91280.C: New testcase.

2019-07-19  Richard Biener  

PR tree-optimization/91200
* tree-ssa-phiopt.c (cond_store_replacement): Check we have
no PHI nodes in middle-bb.

* gcc.dg/torture/pr91200.c: New testcase.

2019-07-15  Richard Biener  

PR middle-end/91162
* tree-cfg.c (move_block_to_fn): When releasing a virtual PHI
node make sure to replace all uses with something valid.

* gcc.dg/autopar/pr91162.c: New testcase.

2019-07-11  Richard Biener  

PR middle-end/91131
* gimplify.c (gimplify_compound_literal_expr): Force a temporary
when the object is volatile and we have not cleared it even though
there are no nonzero elements.

* gcc.target/i386/pr91131.c: New testcase.

2019-07-10  Richard Biener  

PR tree-optimization/91126
* tree-ssa-sccvn.c (vn_reference_lookup_3): Adjust
native encoding offset for BYTES_BIG_ENDIAN.

* gcc.dg/torture/pr91126.c: New testcase.

Added:
branches/gcc-8-branch/gcc/testsuite/g++.dg/torture/pr91280.C
branches/gcc-8-branch/gcc/testsuite/gcc.dg/autopar/pr91162.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/torture/pr91126.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/torture/pr91200.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/pr91293-1.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/pr91293-2.c
branches/gcc-8-branch/gcc/testsuite/gcc.dg/vect/pr91293-3.c
branches/gcc-8-branch/gcc/testsuite/gcc.target/i386/pr91131.c
Modified:
branches/gcc-8-branch/gcc/ChangeLog
branches/gcc-8-branch/gcc/gimplify.c
branches/gcc-8-branch/gcc/testsuite/ChangeLog
branches/gcc-8-branch/gcc/tree-cfg.c
branches/gcc-8-branch/gcc/tree-ssa-phiopt.c
branches/gcc-8-branch/gcc/tree-ssa-sccvn.c
branches/gcc-8-branch/gcc/tree-ssa-structalias.c
branches/gcc-8-branch/gcc/tree-vect-slp.c
branches/gcc-8-branch/gcc/tree.c

[Bug tree-optimization/91162] [7/8 Regression] ICE: tree check: expected class 'type', have 'exceptional' (error_mark) in useless_type_conversion_p, at gimple-expr.c:86 (error: invalid 'PHI' argument)

2019-07-31 Thread rguenth at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91162

Richard Biener  changed:

   What|Removed |Added

  Known to work||9.1.1
   Target Milestone|9.2 |7.5
Summary|[9 Regression] ICE: tree|[7/8 Regression] ICE: tree
   |check: expected class   |check: expected class
   |'type', have 'exceptional'  |'type', have 'exceptional'
   |(error_mark) in |(error_mark) in
   |useless_type_conversion_p,  |useless_type_conversion_p,
   |at gimple-expr.c:86 (error: |at gimple-expr.c:86 (error:
   |invalid 'PHI' argument) |invalid 'PHI' argument)

--- Comment #7 from Richard Biener  ---
Latent, so exploring further backport.