Commits · d8ab9ce00a09f3daeea4ad8eea24a385cd7f28f3 · lvzhengyang / riscv-gcc-1

06 Apr, 2018 11 commits

Reverted commit r254862 · d8ab9ce0
```
From-SVN: r259169
```
Tamar Christina committed Apr 06, 2018
d8ab9ce0 Browse Files

re PR tree-optimization/85244 (Bad optimisation with flexible array member (may… · ef2e5ec2

re PR tree-optimization/85244 (Bad optimisation with flexible array member (may be related to -ftree-dominator-opts))

2018-04-06  Richard Biener  <rguenther@suse.de>

	PR middle-end/85244
	* tree-dfa.c (get_ref_base_and_extent): Reset seen_variable_array_ref
	after seeing a component reference with an adjacent field.  Treat
	refs to arrays at struct end of external decls similar to
	refs to unconstrained commons.

	* gcc.dg/torture/pr85244-1.c: New testcase.
	* gcc.dg/torture/pr85244-2.c: Likewise.

From-SVN: r259168

committed Apr 06, 2018

ef2e5ec2 Browse Files

re PR sanitizer/85213 (-fsanitize=undefined internal compiler error: in… · 5a98025d

re PR sanitizer/85213 (-fsanitize=undefined internal compiler error: in fold_convert_loc, at fold-const.c:2402)

	PR sanitizer/85213
	* fold-const.c (twoval_comparison_p): Remove SAVE_P argument and don't
	look through SAVE_EXPRs with non-side-effects argument.  Adjust
	recursive calls.
	(fold_comparison): Adjust twoval_comparison_p caller, don't handle
	save_p here.

	* c-c++-common/ubsan/pr85213.c: New test.

From-SVN: r259167

committed Apr 06, 2018

5a98025d Browse Files

re PR rtl-optimization/85180 (Infinite loop in RTL DSE optimizer) · 6ca83833

2018-04-06  Richard Biener  <rguenther@suse.de>

	PR middle-end/85180
	* alias.c (find_base_term): New wrapper around find_base_term
	unwinding CSELIB_VAL_PTR changes.
	(find_base_term): Do not restore CSELIB_VAL_PTR during the
	recursion.

	* gcc.dg/pr85180.c: New testcase.

From-SVN: r259166

committed Apr 06, 2018

6ca83833 Browse Files

IBM Z: Fix vcond-shift testcase. · 54ebcca7

gcc/testsuite/ChangeLog:

2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vector/vcond-shift.c: Use the proper conditions
	to trigger the optimization. Do some cleanup and function
	renaming.  Add more test functions.

From-SVN: r259165

committed Apr 06, 2018

54ebcca7 Browse Files

IBM Z: Use the dedicated NOP instructions for "nop" · aad98a61

We still use lr r0,r0 as a NOP instruction although we have some kind
of dedicated NOP instruction (nopr) which maps to a "branch never".

As a side-effect this fixes testcases scanning for NOPs
e.g. patchable_function_entry-*.

As another side-effect this makes it difficult to distingiush NOPs
generated for hotpatching from NOPs added when using -O0 to attach
location information to it.  Hence I had to make sure that the hotpatch
testcases get skipped when compiling without optimization.

gcc/ChangeLog:

2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_z10_optimize_cmp): Expand dedicated NOP
	instructions.
	* config/s390/s390.md (UNSPECV_NOP_LR_0, UNSPECV_NOP_LR_1): New
	constant definitions.
	("nop"): lr 0,0 -> nopr r0
	("nop_lr0", "nop_lr1"): New insn definitions.

gcc/testsuite/ChangeLog:

2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/s390.exp: Remove -O0 from list of torture
	options.
	* gcc.target/s390/hotpatch-1.c: Skip when building without
	optimization.
	* gcc.target/s390/hotpatch-10.c: Likewise.
	* gcc.target/s390/hotpatch-11.c: Likewise.
	* gcc.target/s390/hotpatch-12.c: Likewise.
	* gcc.target/s390/hotpatch-13.c: Likewise.
	* gcc.target/s390/hotpatch-14.c: Likewise.
	* gcc.target/s390/hotpatch-15.c: Likewise.
	* gcc.target/s390/hotpatch-16.c: Likewise.
	* gcc.target/s390/hotpatch-17.c: Likewise.
	* gcc.target/s390/hotpatch-18.c: Likewise.
	* gcc.target/s390/hotpatch-19.c: Likewise.
	* gcc.target/s390/hotpatch-2.c: Likewise.
	* gcc.target/s390/hotpatch-3.c: Likewise.
	* gcc.target/s390/hotpatch-4.c: Likewise.
	* gcc.target/s390/hotpatch-5.c: Likewise.
	* gcc.target/s390/hotpatch-6.c: Likewise.
	* gcc.target/s390/hotpatch-7.c: Likewise.
	* gcc.target/s390/hotpatch-8.c: Likewise.
	* gcc.target/s390/hotpatch-9.c: Likewise.

From-SVN: r259164

committed Apr 06, 2018

aad98a61 Browse Files

Wattributes.c testcase: Disable warning check for IBM Z. · bce89076

On IBM Z we enforce function alignment to 8 bytes.  Hence we get an
error instead of a warning when trying to specify smaller alignments.

gcc/testsuite/ChangeLog:

2018-04-06  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* c-c++-common/Wattributes.c: Disable warning for s390* target and
	check for an error instead.
	* gcc.dg/Wattributes-6.c: Likewise.

From-SVN: r259163

committed Apr 06, 2018

bce89076 Browse Files

[NDS32] Refine condition of stack_push and stack_pop patterns. · 9865d240
```
gcc/
	* config/nds32/nds32.md (*stack_push, *stack_pop): Use
	NDS32_V3PUSH_AVAILABLE_P macro.

From-SVN: r259162
```
Chung-Ju Wu committed Apr 06, 2018
9865d240 Browse Files

[NDS32] Add hard float support. · e2286268

gcc/
	* config.gcc (nds32*-*-*): Add v2j v3f v3s checking.
	(nds32*-*-*): Add float and fpu_config into supported_defaults.
	* common/config/nds32/nds32-common.c (TARGET_DEFAULT_TARGET_FLAGS):
	Include TARGET_DEFAULT_FPU_ISA and TARGET_DEFAULT_FPU_FMA.
	* config/nds32/constants.md (unspec_element): Add UNSPEC_COPYSIGN,
	UNSPEC_FCPYNSD, UNSPEC_FCPYNSS, UNSPEC_FCPYSD and UNSPEC_FCPYSS.
	* config/nds32/constraints.md: New constraints and checking for hard
	float configuration.
	* config/nds32/iterators.md: New mode iterator and attribute for hard
	float configuration.
	* config/nds32/nds32-doubleword.md: Use hard float alternatives and
	patterns.
	* config/nds32/nds32-fpu.md: New file.
	* config/nds32/nds32-md-auxiliary.c: New functions and checkings to
	deal with hard float code generation.
	* config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3F and
	ARCH_V3S.
	(abi_type, float_reg_number): New enum type.
	* config/nds32/nds32-predicates.c: New predicates for hard float.
	* config/nds32/nds32-protos.h: Declare functions for hard float.
	* config/nds32/nds32.c: Implementation for hard float configuration.
	* config/nds32/nds32.h: Definitions for hard float configuration.
	* config/nds32/nds32.md: Include hard float machine description and
	modify patterns for hard float configuration.
	* config/nds32/nds32.opt: New options for hard float configuration.
	* config/nds32/predicates.md: New predicates for hard float
	configuration.

Co-Authored-By: Chung-Ju Wu <jasonwucj@gmail.com>

From-SVN: r259161

committed Apr 06, 2018

e2286268 Browse Files

[NDS32] Enable relax hint by default. · 58e29762

gcc/
	* common/config/nds32/nds32-common.c
	(nds32_option_optimization_table): Enable -mreleax-hint by default.

From-SVN: r259160

committed Apr 06, 2018

58e29762 Browse Files

Daily bump. · 91218427
```
From-SVN: r259159
```
GCC Administrator committed Apr 06, 2018
91218427 Browse Files

05 Apr, 2018 29 commits

re PR c++/85209 (ICE with lambda and structured binding) · 86c9f54b

	PR c++/85209
	* pt.c (tsubst_decomp_names): Don't fail or ICE if DECL_CHAIN (decl3)
	is not prev, if prev == decl.

	* g++.dg/cpp1z/decomp39.C: New test.
	* g++.dg/cpp1z/decomp40.C: New test.

From-SVN: r259156

committed Apr 05, 2018

86c9f54b Browse Files

re PR c++/85208 (ICE with #pragma weak and structured binding) · a1afa75e

	PR c++/85208
	* decl.c (start_decl): For DECL_DECOMPOSITION_P decls, don't call
	maybe_apply_pragma_weak here...
	(cp_maybe_mangle_decomp): ... but call it here instead.

	* g++.dg/cpp1z/decomp41.C: New test.

From-SVN: r259155

committed Apr 05, 2018

a1afa75e Browse Files

PR c++/85136 - ICE with designated init in template. · d600a0ce

	* decl.c (maybe_deduce_size_from_array_init): Handle dependent
	designated initializer.
	(check_array_designated_initializer): Update ce->index with the
	constant value.

From-SVN: r259152

committed Apr 05, 2018

d600a0ce Browse Files

re PR middle-end/85195 (ICE: verify_gimple failed: non-trivial conversion at… · 4c1da8ea

re PR middle-end/85195 (ICE: verify_gimple failed: non-trivial conversion at assignment with -O -fno-tree-ccp --param=sccvn-max-scc-size=10)

	PR middle-end/85195
	* match.pd (BIT_FIELD_REF CONSTRUCTOR@0 @1 @2): Use view_convert around
	CONSTRUCTOR_ELT (ctor, ...)->value.

	* gcc.dg/pr85195.c: New test.

From-SVN: r259149

committed Apr 05, 2018

4c1da8ea Browse Files

Use dlsym to check if libdl is needed for plugin · 520a02b6

config/plugins.m4 has

 if test "$plugins" = "yes"; then
    AC_SEARCH_LIBS([dlopen], [dl])
  fi

Plugin uses dlsym, but libasan.so only intercepts dlopen, not dlsym:

[hjl@gnu-tools-1 binutils-text]$ nm -D /lib64/libasan.so.4| grep " dl"
0000000000038580 W dlclose
                 U dl_iterate_phdr
000000000004dc50 W dlopen
                 U dlsym
                 U dlvsym
[hjl@gnu-tools-1 binutils-text]$

Testing dlopen for libdl leads to false negative when -fsanitize=address
is used.  It results in link failure:

../bfd/.libs/libbfd.a(plugin.o): undefined reference to symbol 'dlsym@@GLIBC_2.16'

dlsym should be used to check if libdl is needed for plugin.

	PR gas/22318
	* plugins.m4 (AC_PLUGINS): Use dlsym to check if libdl is needed.

From-SVN: r259140

committed Apr 05, 2018

520a02b6 Browse Files

PR c++/83808 - ICE with VLA initialization. · da0c07b2

	* typeck2.c (process_init_constructor_array): Don't require a VLA
	initializer to have VLA type.

From-SVN: r259138

committed Apr 05, 2018

da0c07b2 Browse Files

re PR c++/80956 (ICE with abstract class vector) · 61f84e25

/cp
2018-04-05  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80956
	* call.c (convert_like_real): Fail gracefully for a broken
	std::initializer_list, missing a definition.

	* name-lookup.c (do_pushtag): Tweak message, use %< and %>.

/testsuite
2018-04-05  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80956
	* g++.dg/cpp0x/initlist100.C: New.
	* g++.dg/cpp0x/initlist101.C: Likewise.

From-SVN: r259137

committed Apr 05, 2018

61f84e25 Browse Files

re PR c++/84792 (ICE with broken typedef of a struct) · 3b4a12aa

/cp
2018-04-05  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84792
	* decl.c (grokdeclarator): Fix diagnostic about typedef name used
	as nested-name-specifier, keep type and TREE_TYPE (decl) in sync.

/testsuite
2018-04-05  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/84792
	* g++.dg/other/pr84792-1.C: New.
	* g++.dg/other/pr84792-2.C: Likewise.

From-SVN: r259136

committed Apr 05, 2018

3b4a12aa Browse Files

Add another workaround to std::variant for Clang bug 31852 · 970d3d90

	* include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Qualify
	__get calls to avoid ADL and avoid ambiguity due to Clang bug.

From-SVN: r259135

committed Apr 05, 2018

970d3d90 Browse Files

re PR target/85193 (ICE: SIGSEGV in memory_operand at recog.c:1361 with -O2… · b5f3bb7b

re PR target/85193 (ICE: SIGSEGV in memory_operand at recog.c:1361 with -O2 -fno-tree-ccp -fno-tree-fre -mno-sse)

	PR target/85193
	* config/i386/i386.md (define_attr "memory"): Handle rotate1 type.

testsuite/ChangeLog:

	PR target/85193
	* gcc.target/i386/pr85193.c: New test.

From-SVN: r259134

committed Apr 05, 2018

b5f3bb7b Browse Files

PR c++/82152 - ICE with class deduction and inherited ctor. · be9d76c5
```
	* pt.c (do_class_deduction): Ignore inherited ctors.

From-SVN: r259133
```
Jason Merrill committed Apr 05, 2018
be9d76c5 Browse Files
PR c++/84665 - ICE with array of empty class. · 68218b64
```
	* decl2.c (cp_check_const_attributes): Use fold_non_dependent_expr.

From-SVN: r259132
```
Jason Merrill committed Apr 05, 2018
68218b64 Browse Files
PR c++/85228 - ICE with lambda in enumerator. · 4cbe585c
```
	* pt.c (bt_instantiate_type_proc): Don't assume
	CLASSTYPE_TEMPLATE_INFO is non-null.

From-SVN: r259130
```
Jason Merrill committed Apr 05, 2018
4cbe585c Browse Files

Implement P0969 · 9aee04a4

gcc/cp

Implement P0969
* decl.c (find_decomp_class_base): Check accessibility instead
of declared access, adjust diagnostic.

testsuite/

Implement P0969
* g++.dg/cpp1z/decomp4.C: Adjust.
* g++.dg/cpp1z/decomp38.C: New.

From-SVN: r259129

committed Apr 05, 2018

9aee04a4 Browse Files

Implement P0961 · 0fb90182

gcc/cp

Implement P0961
* decl.c (get_tuple_decomp_init): Check the templatedness
of a member get.

testsuite/

Implement P0961
* g++.dg/cpp1z/decomp10.C: Adjust.
* g++.dg/cpp1z/decomp37.C: New.

From-SVN: r259128

committed Apr 05, 2018

0fb90182 Browse Files

PR c++/85200 - ICE with constexpr if in generic lambda. · e99d77c9
```
	* pt.c (extract_locals_r): Don't record the local specs of variables
	declared within the pattern.

From-SVN: r259127
```
Jason Merrill committed Apr 05, 2018
e99d77c9 Browse Files

[nvptx] Fix neutering of bb with only cond jump · 2ba16fd2

2018-04-05  Tom de Vries  <tom@codesourcery.com>

	PR target/85204
	* config/nvptx/nvptx.c (nvptx_single): Fix neutering of bb with only
	cond jump.

	* testsuite/libgomp.oacc-c-c++-common/broadcast-1.c: New test.

From-SVN: r259125

committed Apr 05, 2018

2ba16fd2 Browse Files

[PR c++/84979] reject auto in explicit tmpl args for tmpl-fn · 44780b91

With concepts, we accept auto in explicit template arguments, but we
should only accept them for template classes.  Passing them to
template functions or variables is not allowed.  So, reject it, at
parse time if possible, at specialization time otherwise.


for  gcc/cp/ChangeLog

	PR c++/84979
	* pt.c (check_auto_in_tmpl_args): New.
	(tsubst_qualified_id): Use it to reject template args
	referencing auto for non-type templates.
	* parser.c (cp_parser_template_id): Likewise.
	* cp-tree.h (check_auto_in_tmpl_args): Declare.
	* typeck2.c (build_functional_cast): Report correct location
	for invalid use of auto.

for  gcc/testsuite/ChangeLog

	PR c++/84979
	* g++.dg/concepts/pr84979.C: New.
	* g++.dg/concepts/pr84979-2.C: New.
	* g++.dg/concepts/pr84979-3.C: New.

From-SVN: r259124

committed Apr 05, 2018

44780b91 Browse Files

PR c++/85215 - ICE with copy-init from conversion. · da0c8d97
```
	* call.c (merge_conversion_sequences): Fix type of direct binding
	sequence.

From-SVN: r259123
```
Jason Merrill committed Apr 05, 2018
da0c8d97 Browse Files

[NDS32] Fine-tune memory address type. · 67e1eb3d

gcc/
	* config/nds32/constraints.md (U33): Fine-tune checking condition.
	* config/nds32/nds32-md-auxiliary.c (nds32_mem_format): Ditto.
	* config/nds32/nds32.h (nds32_16bit_address_type): Add
	ADDRESS_POST_MODIFY_LO_REG_IMM3U.

Co-Authored-By: Kito Cheng <kito.cheng@gmail.com>

From-SVN: r259122

committed Apr 05, 2018

67e1eb3d Browse Files

[NDS32] Add constraint for lwi45.fe instruction. · 8656bbcf

gcc/
	* config/nds32/constraints.md (Ufe): New memory constraint.
	* config/nds32/nds32-md-auxiliary.c (nds32_mem_format,
	nds32_output_16bit_load): Consider r8 register for lwi45.fe format.
	* config/nds32/nds32.c (nds32_print_operand): Output lwi45.fe
	operands.
	* config/nds32/nds32.h (nds32_16bit_address_type): Add ADDRESS_R8_IMM7U.
	* config/nds32/nds32.md (*mov<mode>): Adjust pattern.

Co-Authored-By: Kito Cheng <kito.cheng@gmail.com>

From-SVN: r259121

committed Apr 05, 2018

8656bbcf Browse Files

[NDS32] Generate alu-shift instructions only for -Os. · b9774a97
```
gcc/
	* config/nds32/nds32.md: Use optimize_size in the condition for
	alu-shift instructions.

From-SVN: r259120
```
Chung-Ju Wu committed Apr 05, 2018
b9774a97 Browse Files
[NDS32] Add divsi4 and udivsi4 patterns. · 50ea1e4a
```
gcc/
	* config/nds32/nds32.md (divsi4, udivsi4): New patterns.

From-SVN: r259119
```
Chung-Ju Wu committed Apr 05, 2018
50ea1e4a Browse Files
[NDS32] Refine negsi2 pattern. · 3fbbd9e5
```
gcc/
	* config/nds32/nds32.md (negsi2): Refine pattern.

From-SVN: r259118
```
Chung-Ju Wu committed Apr 05, 2018
3fbbd9e5 Browse Files

[NDS32] Refine bit-wise operation and shift patterns. · a3b13564

gcc/
	* config/nds32/iterators.md (shift_rotate): New code iterator.
	(shift): New code attribute.
	* config/nds32/nds32-md-auxiliary.c (nds32_expand_constant): New.
	* config/nds32/nds32-protos.h (nds32_expand_constant): Declare.
	* config/nds32/nds32.c (nds32_print_operand): Deal with more cases.
	* config/nds32/nds32.md (addsi3, *add_srli): Refine implementation for
	bit-wise operations.
	(andsi3, *andsi3): Ditto.
	(iorsi3, *iorsi3, *or_slli, *or_srli): Ditto.
	(xorsi3, *xorsi3, *xor_slli, *xor_srli): Ditto.
	(<shift>si3, *ashlsi3, *ashrsi3, *lshrsi3, *rotrsi3): Ditto.
	* config/nds32/predicates.md (nds32_rimm5u_operand, nds32_and_operand,
	nds32_ior_operand, nds32_xor_operand): New predicates.

Co-Authored-By: Chung-Ju Wu <jasonwucj@gmail.com>

From-SVN: r259117

committed Apr 05, 2018

a3b13564 Browse Files

[NDS32] The add and sub pattens should only accept si mode. · 5c36be57
```
gcc/
	* config/nds32/nds32.md (add<mode>3, sub<mode>3): Rename to ...
	(addsi3, subsi3): ... this.

From-SVN: r259116
```
Chung-Ju Wu committed Apr 05, 2018
5c36be57 Browse Files
[NDS32] Fine-tune predicator for alu-shift patterns. · 77827557
```
gcc/
	* config/nds32/nds32.md (*sub_srli, *and_slli): Fine-tune predicator.

From-SVN: r259115
```
Chung-Ju Wu committed Apr 05, 2018
77827557 Browse Files
[NDS32] Adjust asm patterns indention. · 9c1a4c0f
```
gcc/
	* config/nds32/nds32.md: Adjust indention.

From-SVN: r259114
```
Chung-Ju Wu committed Apr 05, 2018
9c1a4c0f Browse Files
[NDS32] Add new instruction attribute: feature. · 9be6885b
```
gcc/
	* config/nds32/nds32.md (feature): New attribute.

From-SVN: r259113
```
Kito Cheng committed Apr 05, 2018
9be6885b Browse Files