Jakub Jelinek [Thu, 25 Sep 2014 08:19:14 +0000 (10:19 +0200)]
re PR tree-optimization/63341 (Vectorization miscompilation with -mcpu=power7)
PR tree-optimization/63341
* tree-vectorizer.h (vect_create_data_ref_ptr,
vect_create_addr_base_for_vector_ref): Add another tree argument
defaulting to NULL_TREE.
* tree-vect-data-refs.c (vect_create_data_ref_ptr): Add byte_offset
argument, pass it down to vect_create_addr_base_for_vector_ref.
(vect_create_addr_base_for_vector_ref): Add byte_offset argument,
add that to base_offset too if non-NULL.
* tree-vect-stmts.c (vectorizable_load): Add byte_offset variable,
for dr_explicit_realign_optimized set it to vector byte size
- 1 instead of setting offset, pass byte_offset down to
vect_create_data_ref_ptr.
* gcc.dg/vect/pr63341-1.c: New test.
* gcc.dg/vect/pr63341-2.c: New test.
Michael Meissner [Tue, 23 Sep 2014 17:32:37 +0000 (17:32 +0000)]
rs6000.md (f32_vsx): New mode attributes to refine the constraints used on 32/64-bit floating point...
2014-09-23 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000.md (f32_vsx): New mode attributes to
refine the constraints used on 32/64-bit floating point moves.
(f32_av): Likewise.
(f64_vsx): Likewise.
(f64_dm): Likewise.
(f64_av): Likewise.
(BOOL_REGS_OUTPUT): Use wt constraint for TImode instead of wa.
(BOOL_REGS_OP1): Likewise.
(BOOL_REGS_OP2): Likewise.
(BOOL_REGS_UNARY): Likewise.
(mov<mode>_hardfloat, SFmode/SDmode): Tighten down constraints for
32/64-bit floating point moves. Do not use wa, instead use ww/ws
for moves involving VSX registers. Do not use constraints that
target VSX registers for decimal types.
(mov<mode>_hardfloat32, DFmode/DDmode): Likewise.
(mov<mode>_hardfloat64, DFmode/DDmode): Likewise.
Michael Meissner [Tue, 23 Sep 2014 17:31:26 +0000 (17:31 +0000)]
rs6000.md (f32_vsx): New mode attributes to refine the constraints used on 32/64-bit floating point...
2014-09-23 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/rs6000.md (f32_vsx): New mode attributes to
refine the constraints used on 32/64-bit floating point moves.
(f32_av): Likewise.
(f64_vsx): Likewise.
(f64_dm): Likewise.
(f64_av): Likewise.
(BOOL_REGS_OUTPUT): Use wt constraint for TImode instead of wa.
(BOOL_REGS_OP1): Likewise.
(BOOL_REGS_OP2): Likewise.
(BOOL_REGS_UNARY): Likewise.
(mov<mode>_hardfloat, SFmode/SDmode): Tighten down constraints for
32/64-bit floating point moves. Do not use wa, instead use ww/ws
for moves involving VSX registers. Do not use constraints that
target VSX registers for decimal types.
(mov<mode>_hardfloat32, DFmode/DDmode): Likewise.
(mov<mode>_hardfloat64, DFmode/DDmode): Likewise.
Michael Meissner [Fri, 19 Sep 2014 22:14:58 +0000 (22:14 +0000)]
backport: predicates.md (fusion_gpr_mem_load): Move testing for base_reg_operand to be common between LO_SUM and PLUS.
2014-09-19 Michael Meissner <meissner@linux.vnet.ibm.com>
Back port from trunk:
2014-09-19 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/predicates.md (fusion_gpr_mem_load): Move testing
for base_reg_operand to be common between LO_SUM and PLUS.
(fusion_gpr_mem_combo): New predicate to match a fused address
that combines the addis and memory offset address.
* config/rs6000/rs6000.c (fusion_gpr_load_p): Change calling
signature to pass each argument separately, rather than
using an operands array. Rewrite the insns found by peephole2 to
be a single insn, rather than hoping the insns will still be
together when the peephole pass is done. Drop being called via a
normal peephole.
(emit_fusion_gpr_load): Change calling signature to be called from
the fusion_gpr_load_<mode> insns with a combined memory address
instead of the peephole pass passing the addis and offset
separately.
* config/rs6000/rs6000.md (UNSPEC_FUSION_GPR): New unspec for GPR
fusion.
(power8 fusion peephole): Drop support for doing power8 via a
normal peephole that was created by the peephole2 pass.
(power8 fusion peephole2): Create a new insn with the fused
address, so that the fused operation is kept together after
register allocation is done.
(fusion_gpr_load_<mode>): Likewise.
Joseph Myers [Thu, 18 Sep 2014 12:04:43 +0000 (13:04 +0100)]
Fix i386 FP_TRAPPING_EXCEPTIONS.
The i386 sfp-machine.h defines FP_TRAPPING_EXCEPTIONS in a way that is
always wrong: it treats a set bit as indicating the exception is
trapping, when actually a set bit (both for 387 and SSE floating
point) indicates it is masked, and a clear bit indicates it is
trapping. This patch fixes this bug.
Bootstrapped with no regressions on x86_64-unknown-linux-gnu.
libgcc:
* config/i386/sfp-machine.h (FP_TRAPPING_EXCEPTIONS): Treat clear
bits not set bits as indicating trapping exceptions.
gcc/testsuite:
* gcc.dg/torture/float128-exact-underflow.c: New test.
Jakub Jelinek [Wed, 17 Sep 2014 19:08:06 +0000 (21:08 +0200)]
re PR debug/63284 (-fcompare-debug issue due to redirection to __builtin_unreachable ())
PR debug/63284
* tree-cfgcleanup.c (fixup_noreturn_call): Don't split block
if there are only debug stmts after the noreturn call, instead
remove the debug stmts.
Michael Meissner [Wed, 10 Sep 2014 23:20:48 +0000 (23:20 +0000)]
vsx.md (vsx_fmav4sf4): Use correct constraints for V2DF, V4SF, DF, and DI modes.
2014-09-10 Michael Meissner <meissner@linux.vnet.ibm.com>
* config/rs6000/vsx.md (vsx_fmav4sf4): Use correct constraints for
V2DF, V4SF, DF, and DI modes.
(vsx_fmav2df2): Likewise.
(vsx_float_fix_<mode>2): Likewise.
(vsx_reduc_<VEC_reduc_name>_v2df_scalar): Likewise.
Richard Biener [Tue, 9 Sep 2014 14:45:57 +0000 (14:45 +0000)]
backport: re PR tree-optimization/61452 (hang at -O1 and -Os on x86_64-linux-gnu)
2014-09-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2014-06-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/61452
* tree-ssa-sccvn.c (visit_phi): Remove pointless setting of
expr and has_constants in case we found a leader.
(simplify_binary_expression): Always valueize operands first.
(simplify_unary_expression): Likewise.
Richard Biener [Tue, 9 Sep 2014 13:17:51 +0000 (13:17 +0000)]
backport: [multiple changes]
2014-09-09 Richard Biener <rguenther@suse.de>
Backport from mainline
2014-05-05 Richard Biener <rguenther@suse.de>
PR middle-end/61010
* fold-const.c (fold_binary_loc): Consistently avoid
canonicalizing X & CST away from a CST that is the mask
of a mode.
* gcc.dg/torture/pr61010.c: New testcase.
2014-05-28 Richard Biener <rguenther@suse.de>
PR middle-end/61045
* fold-const.c (fold_comparison): When folding
X +- C1 CMP Y +- C2 to X CMP Y +- C2 +- C1 also ensure
the sign of the remaining constant operand stays the same.
* gcc.dg/pr61045.c: New testcase.
2014-08-11 Richard Biener <rguenther@suse.de>
PR tree-optimization/62075
* tree-vect-slp.c (vect_detect_hybrid_slp_stmts): Properly
handle uses in patterns.
* tree-vect-patterns.c (vect_recog_dot_prod_pattern): Fix a bug
when checking the dot production pattern. The type of rhs operand
of multiply is now checked correctly.
* gcc.dg/vect/pr63189.c: New test.
* gcc.dg/vect/pr60196-1.c: New test.
* gcc.dg/vect/pr60196-2.c: New test.
Backported from mainline
2013-09-17 Cong Hou <congh@google.com>
* gcc.dg/vect/vect-reduc-dot-s16c.c: Add a test case with dot product
on two arrays with short and int types. This should not be recognized
as a dot product pattern.
Martin Jambor [Wed, 3 Sep 2014 16:33:10 +0000 (18:33 +0200)]
re PR ipa/61986 (ICE on valid code at -O3 on x86_64-linux-gnu indecide_about_value, at ipa-cp.c:3480)
2014-09-03 Martin Jambor <mjambor@suse.cz>
PR ipa/61986
* ipa-cp.c (find_aggregate_values_for_callers_subset): Chain
created replacements in ascending order of offsets.
(known_aggs_to_agg_replacement_list): Likewise.
Samuel Bronson [Thu, 28 Aug 2014 16:22:21 +0000 (16:22 +0000)]
backport: [multiple changes]
2014-08-28 Samuel Bronson <naesten@gmail.com>
Backport r212453 from trunk
2014-07-11 Samuel Bronson <naesten@gmail.com>
Matthias Klose <doko@ubuntu.com>
PR libstdc++/58962
* python/libstdcxx/v6/printers.py: Port to Python 2+3
(imap): New compat function.
(izip): Likewise.
(Iterator): New mixin to allow writing iterators in Python 3 style
regardless of which version we're running on.
[Python3] (long) New compat alias for "int".
* testsuite/lib/gdb-test.exp: Port to Python 2+3 (print syntax)
Backport r210625 from trunk
2014-05-19 Jonathan Wakely <jwakely@redhat.com>
* python/libstdcxx/v6/printers.py: Use Python3 raise syntax.
re PR target/62038 (Out of range branch target in thunk)
PR target/62038
* config/pa/pa.c (pa_output_function_epilogue): Don't set
last_address when the current function is a thunk.
(pa_asm_output_mi_thunk): When we don't have named sections or they
are not being used, check that thunk can reach the stub table with a
short branch.
Thomas Koenig [Thu, 21 Aug 2014 21:20:27 +0000 (21:20 +0000)]
backport: re PR fortran/62214 (Problem with spread plus concatenation for characters)
2014-08-21 Thomas Koenig <tkoenig@gcc.gnu.org>
Backport from trunk
PR fortran/62214
* frontend-passes.c (optimize_binop_array_assignment):
Do not try to optimize the array assignment for string
concatenation.
2014-08-21 Thomas Koenig <tkoenig@gcc.gnu.org>
Backport from trunk
PR fortran/62214
* gfortran.dg/array_assignment_5.f90: New test.
Steven G. Kargl [Wed, 20 Aug 2014 16:23:55 +0000 (16:23 +0000)]
re PR libfortran/62188 (Array bounds overrun in bessel_yn_r4/8/16 and other functions)
2014-08-20 Steven G. Kargl <kargl@gcc.gnu.org>
PR libgfortran/62188
* m4/bessel.m4: Avoid indexing off the end of an array.
* generated/bessel_r10.c: Regenerated.
* generated/bessel_r16.c: Ditto.
* generated/bessel_r4.c: Ditto.
* generated/bessel_r8.c: Ditto.
backport: re PR debug/55794 (FAIL: g++.dg/debug/dwarf2/non-virtual-thunk.C -std=gnu++98 and -std=gnu++11)
Backport from trunk:
2014-04-06 John David Anglin <danglin@gcc.gnu.org>
PR debug/55794
* config/pa/pa.c (pa_output_function_epilogue): Skip address and code
size accounting for thunks.
(pa_asm_output_mi_thunk): Use final_start_function() and
final_end_function() to output function start and end directives.
backport: re PR middle-end/62103 (Incorrect folding of bitfield in a union on big endian targets)
2014-08-13 Thomas Preud'homme <thomas.preudhomme@arm.com>
Backport from mainline
2014-08-12 Thomas Preud'homme <thomas.preudhomme@arm.com>
gcc/
PR middle-end/62103
* gimple-fold.c (fold_ctor_reference): Don't fold in presence of
bitfields, that is when size doesn't match the size of type or the
size of the constructor.
gcc/testsuite/
PR middle-end/62103
* gcc.c-torture/execute/bitfld-6.c: New test.
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