PR target/82274
* internal-fn.c (expand_mul_overflow): If both operands have
the same highpart of -1 or 0 and the topmost bit of lowpart
is different, overflow is if res <= 0 rather than res < 0.
* libgcc2.c (__mulvDI3): If both operands have
the same highpart of -1 and the topmost bit of lowpart is 0,
multiplication overflows even if both lowparts are 0.
* gcc.dg/pr82274-1.c: New test.
* gcc.dg/pr82274-2.c: New test.
From-SVN: r253735
PR target/82524
* config/i386/i386.md (addqi_ext_1, andqi_ext_1,
*andqi_ext_1_cc, *<code>qi_ext_1, *xorqi_ext_1_cc): Change
=Q constraints to +Q and into insn condition add check
that operands[0] and operands[1] are equal.
(*addqi_ext_2, *andqi_ext_2, *<code>qi_ext_2): Change
=Q constraints to +Q and into insn condition add check
that operands[0] is equal to either operands[1] or operands[2].
* gcc.c-torture/execute/pr82524.c: New test.
From-SVN: r253711
Since size of "void *" is 4 bytes for x32, check if __x86_64__ is defined
by $CC, instead of
if test x$ac_cv_sizeof_void_p = x8; then
to decide wether sanitizer_linux_x86_64.lo should be used.
Backported from mainline
PR sanitizer/82379
* configure.tgt (SANITIZER_COMMON_TARGET_DEPENDENT_OBJECTS): Set
to sanitizer_linux_x86_64.lo if __x86_64__ is defined by $CC.
From-SVN: r253442
2017-10-03 Thomas Koenig <tkoenig@gcc.gnu.org>
Steven G. Kargl <kargl@gcc.gnu.org>
Backport from trunk
PR fortran/80118
* expr.c (gfc_get_full_arrayspec_from_expr): If there is
no symtree, set array spec to NULL.
2017-10-03 Thomas Koenig <tkoenig@gcc.gnu.org>
Steven G. Kargl <kargl@gcc.gnu.org>
Backport from trunk
PR fortran/80118
* gfortran.dg/zero_sized_7.f90: New test.
Co-Authored-By: Steven G. Kargl <kargl@gcc.gnu.org>
From-SVN: r253383
[gcc]
2017-10-02 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-09-29 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/82337
* gimple-ssa-strength-reduction.c (find_phi_def): Don't record a
phi definition if the PHI result appears in an abnormal PHI.
(find_basis_for_base_expr): Don't record a basis if the LHS of the
basis appears in an abnormal PHI.
[gcc]
2017-10-02 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
Backport from mainline
2017-09-29 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/82337
* gcc.c-torture/compile/pr82337.c: New file.
From-SVN: r253359
Backported from mainline
2017-09-29 Jakub Jelinek <jakub@redhat.com>
PR c/82340
* c-decl.c (build_compound_literal): Use c_apply_type_quals_to_decl
instead of trying to set just TREE_READONLY manually.
* gcc.dg/tree-ssa/pr82340.c: New test.
From-SVN: r253319
Backported from mainline
2017-09-27 Jakub Jelinek <jakub@redhat.com>
PR c++/82159
* gimplify.c (gimplify_modify_expr): Don't optimize away zero sized
lhs from calls if the lhs has addressable type.
* g++.dg/opt/pr82159.C: New test.
From-SVN: r253318
2017-09-26 Richard Biener <rguenther@suse.de>
Backport from mainline
2017-09-19 Richard Biener <rguenther@suse.de>
PR tree-optimization/82244
* tree-vrp.c (remove_range_assertions): Do not propagate
a constant to abnormals but replace the assert with a copy.
* gcc.dg/torture/pr82244.c: New testcase.
2017-09-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/82276
PR tree-optimization/82244
* tree-vrp.c (build_assert_expr_for): Set
SSA_NAME_OCCURS_IN_ABNORMAL_PHI if the variable we assert on
has it set.
(remove_range_assertions): Revert earlier change.
* gcc.dg/torture/pr82276.c: New testcase.
2017-09-20 Richard Biener <rguenther@suse.de>
PR tree-optimization/82264
* tree-ssa-sccvn.c (vn_phi_eq): Use safe_dyn_cast to check
for GIMPLE_CONDs.
(vn_phi_lookup): Likewise.
(vn_phi_insert): Likewise.
* is-a.h (safe_dyn_cast): New.
* gcc.dg/torture/pr82264.c: New testcase.
2017-09-25 Richard Biener <rguenther@suse.de>
PR tree-optimization/82285
* tree-vect-patterns.c (vect_recog_bool_pattern): Also handle
enumeral types.
* gcc.dg/torture/pr82285.c: New testcase.
2017-09-22 Richard Biener <rguenther@suse.de>
PR tree-optimization/82291
* tree-if-conv.c (predicate_mem_writes): Make sure to
remove writes in blocks predicated with false.
* gcc.dg/torture/pr82291.c: New testcase.
From-SVN: r253190
GCC Administrator
Ian Lance Taylor
Jakub Jelinek
Paolo Carlini
Andreas Tobler
Ian Lance Taylor
James Cowgill
Christophe Lyon
Jason Merrill
Eric Botcazou
H.J. Lu
Thomas Koenig
Bill Schmidt
Thomas Schwinge
Krister Walfridsson
Richard Biener