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7.2.1-5

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This commit is contained in:
Jakub Jelinek 2018-01-01 14:45:04 +01:00
parent 3597b2c793
commit 2678e30d91
7 changed files with 89 additions and 551 deletions
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17
gcc.spec
View File

@ -235,12 +235,8 @@ Patch8: gcc7-no-add-needed.patch
Patch9: gcc7-aarch64-async-unw-tables.patch
Patch10: gcc7-foffload-default.patch
Patch11: gcc7-Wno-format-security.patch
Patch12: gcc7-pr81314.patch
Patch13: gcc7-pr81325.patch
Patch14: gcc7-pr82112-1.patch
Patch15: gcc7-pr82112-2.patch
Patch16: gcc7-pr81929.patch
Patch17: gcc7-aarch64-sanitizer-fix.patch
Patch12: gcc7-pr83556.patch
Patch13: gcc7-aarch64-sanitizer-fix.patch
Patch1000: nvptx-tools-no-ptxas.patch
Patch1001: nvptx-tools-build.patch
@ -847,13 +843,9 @@ package or when debugging this package.
%patch9 -p0 -b .aarch64-async-unw-tables~
%patch10 -p0 -b .foffload-default~
%patch11 -p0 -b .Wno-format-security~
%patch12 -p0 -b .pr81314~
%patch13 -p0 -b .pr81325~
%patch14 -p0 -b .pr82112-1~
%patch15 -p0 -b .pr82112-2~
%patch16 -p0 -b .pr81929~
%patch12 -p0 -b .pr83556~
%if 0%{?fedora} > 27
%patch17 -p0 -b .aarch64-sanitizer-fix~
%patch13 -p0 -b .aarch64-sanitizer-fix~
%endif
cd nvptx-tools-%{nvptx_tools_gitrev}
@ -3344,6 +3336,7 @@ fi
- fix sccvn ICE (#1506809, PR tree-optimization/82264)
- fix ICE in dwarf2out force_type_die (#1516576, #1516577, PR debug/82155)
- fix power6 ICE in store_data_bypass_p (#1522675, PR target/80101)
- fix replace_placeholders (PR c++/83556)
* Wed Nov 29 2017 Jeff Law <law@redhat.com> 7.2.1-4
- Fix problem with large outgoing args and -fstack-clash-protection

72
gcc7-pr81314.patch
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@ -1,72 +0,0 @@
2017-09-15 Jakub Jelinek <jakub@redhat.com>
Backported from mainline
2017-09-14 Jakub Jelinek <jakub@redhat.com>
PR c++/81314
* cp-gimplify.c (omp_var_to_track): Look through references.
(omp_cxx_notice_variable): Likewise.
* testsuite/libgomp.c++/pr81314.C: New test.
--- gcc/cp/cp-gimplify.c (revision 252769)
+++ gcc/cp/cp-gimplify.c (revision 252770)
@@ -895,6 +895,8 @@ omp_var_to_track (tree decl)
tree type = TREE_TYPE (decl);
if (is_invisiref_parm (decl))
type = TREE_TYPE (type);
+ else if (TREE_CODE (type) == REFERENCE_TYPE)
+ type = TREE_TYPE (type);
while (TREE_CODE (type) == ARRAY_TYPE)
type = TREE_TYPE (type);
if (type == error_mark_node || !CLASS_TYPE_P (type))
@@ -947,6 +949,8 @@ omp_cxx_notice_variable (struct cp_gener
tree type = TREE_TYPE (decl);
if (is_invisiref_parm (decl))
type = TREE_TYPE (type);
+ else if (TREE_CODE (type) == REFERENCE_TYPE)
+ type = TREE_TYPE (type);
while (TREE_CODE (type) == ARRAY_TYPE)
type = TREE_TYPE (type);
get_copy_ctor (type, tf_none);
--- libgomp/testsuite/libgomp.c++/pr81314.C (nonexistent)
+++ libgomp/testsuite/libgomp.c++/pr81314.C (revision 252770)
@@ -0,0 +1,38 @@
+// PR c++/81314
+// { dg-do link }
+
+template <int N>
+struct S {
+ S () { s = 0; }
+ S (const S &x) { s = x.s; }
+ ~S () {}
+ int s;
+};
+
+void
+foo (S<2> &x)
+{
+ #pragma omp taskloop
+ for (int i = 0; i < 100; ++i)
+ x.s++;
+}
+
+void
+bar (S<3> &x)
+{
+ #pragma omp task
+ x.s++;
+}
+
+int
+main ()
+{
+ S<2> s;
+ S<3> t;
+ #pragma omp parallel
+ #pragma omp master
+ {
+ foo (s);
+ bar (t);
+ }
+}

199
gcc7-pr81325.patch
View File

@ -1,199 +0,0 @@
2017-09-15 Jakub Jelinek <jakub@redhat.com>
Backported from mainline
2017-09-14 Jakub Jelinek <jakub@redhat.com>
PR target/81325
* cfgbuild.c (find_bb_boundaries): Ignore debug insns in decisions
if and where to split a bb, except for splitting before debug insn
sequences followed by non-label real insn. Delete debug insns
in between basic blocks.
* g++.dg/cpp0x/pr81325.C: New test.
--- gcc/cfgbuild.c (revision 252751)
+++ gcc/cfgbuild.c (revision 252752)
@@ -442,9 +442,10 @@ find_bb_boundaries (basic_block bb)
rtx_insn *end = BB_END (bb), *x;
rtx_jump_table_data *table;
rtx_insn *flow_transfer_insn = NULL;
+ rtx_insn *debug_insn = NULL;
edge fallthru = NULL;
- if (insn == BB_END (bb))
+ if (insn == end)
return;
if (LABEL_P (insn))
@@ -455,27 +456,49 @@ find_bb_boundaries (basic_block bb)
{
enum rtx_code code = GET_CODE (insn);
+ if (code == DEBUG_INSN)
+ {
+ if (flow_transfer_insn && !debug_insn)
+ debug_insn = insn;
+ }
/* In case we've previously seen an insn that effects a control
flow transfer, split the block. */
- if ((flow_transfer_insn || code == CODE_LABEL)
- && inside_basic_block_p (insn))
+ else if ((flow_transfer_insn || code == CODE_LABEL)
+ && inside_basic_block_p (insn))
{
- fallthru = split_block (bb, PREV_INSN (insn));
+ rtx_insn *prev = PREV_INSN (insn);
+
+ /* If the first non-debug inside_basic_block_p insn after a control
+ flow transfer is not a label, split the block before the debug
+ insn instead of before the non-debug insn, so that the debug
+ insns are not lost. */
+ if (debug_insn && code != CODE_LABEL && code != BARRIER)
+ prev = PREV_INSN (debug_insn);
+ fallthru = split_block (bb, prev);
if (flow_transfer_insn)
{
BB_END (bb) = flow_transfer_insn;
+ rtx_insn *next;
/* Clean up the bb field for the insns between the blocks. */
for (x = NEXT_INSN (flow_transfer_insn);
x != BB_HEAD (fallthru->dest);
- x = NEXT_INSN (x))
- if (!BARRIER_P (x))
- set_block_for_insn (x, NULL);
+ x = next)
+ {
+ next = NEXT_INSN (x);
+ /* Debug insns should not be in between basic blocks,
+ drop them on the floor. */
+ if (DEBUG_INSN_P (x))
+ delete_insn (x);
+ else if (!BARRIER_P (x))
+ set_block_for_insn (x, NULL);
+ }
}
bb = fallthru->dest;
remove_edge (fallthru);
flow_transfer_insn = NULL;
+ debug_insn = NULL;
if (code == CODE_LABEL && LABEL_ALT_ENTRY_P (insn))
make_edge (ENTRY_BLOCK_PTR_FOR_FN (cfun), bb, 0);
}
@@ -498,17 +521,23 @@ find_bb_boundaries (basic_block bb)
/* In case expander replaced normal insn by sequence terminating by
return and barrier, or possibly other sequence not behaving like
ordinary jump, we need to take care and move basic block boundary. */
- if (flow_transfer_insn)
+ if (flow_transfer_insn && flow_transfer_insn != end)
{
BB_END (bb) = flow_transfer_insn;
/* Clean up the bb field for the insns that do not belong to BB. */
- x = flow_transfer_insn;
- while (x != end)
+ rtx_insn *next;
+ for (x = NEXT_INSN (flow_transfer_insn); ; x = next)
{
- x = NEXT_INSN (x);
- if (!BARRIER_P (x))
+ next = NEXT_INSN (x);
+ /* Debug insns should not be in between basic blocks,
+ drop them on the floor. */
+ if (DEBUG_INSN_P (x))
+ delete_insn (x);
+ else if (!BARRIER_P (x))
set_block_for_insn (x, NULL);
+ if (x == end)
+ break;
}
}
--- gcc/testsuite/g++.dg/cpp0x/pr81325.C (nonexistent)
+++ gcc/testsuite/g++.dg/cpp0x/pr81325.C (revision 252752)
@@ -0,0 +1,84 @@
+// PR target/81325
+// { dg-do compile { target c++11 } }
+// { dg-options "-O2 -fcompare-debug" }
+
+struct A { A(const char *, const int & = 0); };
+template <typename> struct B;
+template <typename> struct C {
+ int _M_i;
+ void m_fn1() { __atomic_fetch_add(&_M_i, 0, __ATOMIC_RELAXED); }
+};
+struct D {
+ int *Data;
+ long Length = 0;
+ D(int) : Data() {}
+};
+template <> struct B<int> : C<int> {};
+struct F {
+ B<int> RefCount;
+ void m_fn2() { RefCount.m_fn1(); }
+};
+struct G {
+ F *Obj;
+ G(const G &p1) : Obj(p1.Obj) {
+ if (Obj) {
+ F *a = 0;
+ a->m_fn2();
+ }
+ }
+};
+struct H {
+ int CPlusPlus : 1;
+};
+struct I {
+ enum {} KindId;
+};
+template <typename ResultT, typename ArgT> struct J {
+ void operator()();
+ ResultT operator()(ArgT) {}
+};
+struct K {
+ int AllowBind;
+ I SupportedKind;
+ I RestrictKind;
+ G Implementation;
+};
+struct L {
+ L(int) : Implementation(Implementation) {}
+ K Implementation;
+};
+struct M {
+ int Param1;
+};
+struct N {
+ N(int, L &p2) : Param2(p2) {}
+ L Param2;
+};
+struct O {
+ L m_fn3();
+};
+L ignoringImpCasts(L);
+J<O, L> b;
+L hasName(const A &);
+M hasOverloadedOperatorName(D);
+J<O, int> c;
+struct P {
+ void m_fn4(L, int);
+};
+struct Q {
+ void m_fn5(P *);
+};
+H d;
+void Q::m_fn5(P *p1) {
+ if (!d.CPlusPlus) {
+ c();
+ L e = 0, f = ignoringImpCasts(e);
+ b(ignoringImpCasts(f)).m_fn3();
+ }
+ hasOverloadedOperatorName(0);
+ hasName("");
+ L g = 0;
+ N(0, g);
+ L h(0);
+ p1->m_fn4(h, 0);
+}

73
gcc7-pr81929.patch
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@ -1,73 +0,0 @@
2017-09-14 Jakub Jelinek <jakub@redhat.com>
PR sanitizer/81929
* tree.c (struct replace_placeholders_t): Add pset field.
(replace_placeholders_r): Call cp_walk_tree with d->pset as
last argument instead of NULL. Formatting fix.
(replace_placeholders): Add pset variable, add its address
into data. Pass &pset instead of NULL to cp_walk_tree.
* g++.dg/ubsan/pr81929.C: New test.
--- gcc/cp/tree.c.jj 2017-09-12 09:35:47.000000000 +0200
+++ gcc/cp/tree.c 2017-09-14 17:38:07.717064412 +0200
@@ -3063,6 +3063,7 @@ struct replace_placeholders_t
{
tree obj; /* The object to be substituted for a PLACEHOLDER_EXPR. */
bool seen; /* Whether we've encountered a PLACEHOLDER_EXPR. */
+ hash_set<tree> *pset; /* To avoid walking same trees multiple times. */
};
/* Like substitute_placeholder_in_expr, but handle C++ tree codes and
@@ -3085,8 +3086,8 @@ replace_placeholders_r (tree* t, int* wa
case PLACEHOLDER_EXPR:
{
tree x = obj;
- for (; !(same_type_ignoring_top_level_qualifiers_p
- (TREE_TYPE (*t), TREE_TYPE (x)));
+ for (; !same_type_ignoring_top_level_qualifiers_p (TREE_TYPE (*t),
+ TREE_TYPE (x));
x = TREE_OPERAND (x, 0))
gcc_assert (TREE_CODE (x) == COMPONENT_REF);
*t = x;
@@ -3118,8 +3119,7 @@ replace_placeholders_r (tree* t, int* wa
valp = &TARGET_EXPR_INITIAL (*valp);
}
d->obj = subob;
- cp_walk_tree (valp, replace_placeholders_r,
- data_, NULL);
+ cp_walk_tree (valp, replace_placeholders_r, data_, d->pset);
d->obj = obj;
}
*walk_subtrees = false;
@@ -3151,10 +3151,11 @@ replace_placeholders (tree exp, tree obj
return exp;
tree *tp = &exp;
- replace_placeholders_t data = { obj, false };
+ hash_set<tree> pset;
+ replace_placeholders_t data = { obj, false, &pset };
if (TREE_CODE (exp) == TARGET_EXPR)
tp = &TARGET_EXPR_INITIAL (exp);
- cp_walk_tree (tp, replace_placeholders_r, &data, NULL);
+ cp_walk_tree (tp, replace_placeholders_r, &data, &pset);
if (seen_p)
*seen_p = data.seen;
return exp;
--- gcc/testsuite/g++.dg/ubsan/pr81929.C.jj 2017-09-14 17:48:09.052611540 +0200
+++ gcc/testsuite/g++.dg/ubsan/pr81929.C 2017-09-14 17:49:21.644711332 +0200
@@ -0,0 +1,14 @@
+// PR sanitizer/81929
+// { dg-do compile }
+// { dg-options "-std=c++14 -fsanitize=undefined" }
+
+struct S { S &operator<< (long); S foo (); S (); };
+
+void
+bar ()
+{
+ static_cast<S&>(S () << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0
+ << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0
+ << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0
+ << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0 << 0).foo ();
+}

94
gcc7-pr82112-1.patch
View File

@ -1,94 +0,0 @@
2017-09-15 Jakub Jelinek <jakub@redhat.com>
Backported from mainline
2017-09-12 Jakub Jelinek <jakub@redhat.com>
PR target/82112
* c-common.c (sync_resolve_size): Instead of c_dialect_cxx ()
assertion check that in the condition.
(get_atomic_generic_size): Likewise. Before testing if parameter
has pointer type, if it has array type, call for C++
default_conversion to perform array-to-pointer conversion.
* c-c++-common/pr82112.c: New test.
* gcc.dg/pr82112.c: New test.
--- gcc/c-family/c-common.c (revision 252002)
+++ gcc/c-family/c-common.c (revision 252003)
@@ -6478,10 +6478,9 @@ sync_resolve_size (tree function, vec<tr
}
argtype = type = TREE_TYPE ((*params)[0]);
- if (TREE_CODE (type) == ARRAY_TYPE)
+ if (TREE_CODE (type) == ARRAY_TYPE && c_dialect_cxx ())
{
/* Force array-to-pointer decay for C++. */
- gcc_assert (c_dialect_cxx());
(*params)[0] = default_conversion ((*params)[0]);
type = TREE_TYPE ((*params)[0]);
}
@@ -6646,10 +6645,9 @@ get_atomic_generic_size (location_t loc,
/* Get type of first parameter, and determine its size. */
type_0 = TREE_TYPE ((*params)[0]);
- if (TREE_CODE (type_0) == ARRAY_TYPE)
+ if (TREE_CODE (type_0) == ARRAY_TYPE && c_dialect_cxx ())
{
/* Force array-to-pointer decay for C++. */
- gcc_assert (c_dialect_cxx());
(*params)[0] = default_conversion ((*params)[0]);
type_0 = TREE_TYPE ((*params)[0]);
}
@@ -6688,6 +6686,12 @@ get_atomic_generic_size (location_t loc,
/* __atomic_compare_exchange has a bool in the 4th position, skip it. */
if (n_param == 6 && x == 3)
continue;
+ if (TREE_CODE (type) == ARRAY_TYPE && c_dialect_cxx ())
+ {
+ /* Force array-to-pointer decay for C++. */
+ (*params)[x] = default_conversion ((*params)[x]);
+ type = TREE_TYPE ((*params)[x]);
+ }
if (!POINTER_TYPE_P (type))
{
error_at (loc, "argument %d of %qE must be a pointer type", x + 1,
--- gcc/testsuite/gcc.dg/pr82112.c (nonexistent)
+++ gcc/testsuite/gcc.dg/pr82112.c (revision 252003)
@@ -0,0 +1,21 @@
+/* PR target/82112 */
+/* { dg-do compile } */
+/* { dg-options "-std=gnu90" } */
+
+struct S { int a[10]; } bar (void);
+int b, c;
+
+void
+foo (void)
+{
+ __atomic_load (bar ().a, &b, __ATOMIC_ACQUIRE); /* { dg-error "argument 1 of .__atomic_load. must be a non-void pointer type" } */
+ __atomic_load (&b, bar ().a, __ATOMIC_ACQUIRE); /* { dg-error "argument 2 of .__atomic_load. must be a pointer type" } */
+ __atomic_store (bar ().a, &b, __ATOMIC_SEQ_CST); /* { dg-error "argument 1 of .__atomic_store. must be a non-void pointer type" } */
+ __atomic_store (&b, bar ().a, __ATOMIC_SEQ_CST); /* { dg-error "argument 2 of .__atomic_store. must be a pointer type" } */
+ __atomic_exchange (bar ().a, &b, &c, __ATOMIC_RELAXED); /* { dg-error "argument 1 of .__atomic_exchange. must be a non-void pointer type" } */
+ __atomic_exchange (&b, bar ().a, &c, __ATOMIC_RELAXED); /* { dg-error "argument 2 of .__atomic_exchange. must be a pointer type" } */
+ __atomic_exchange (&b, &c, bar ().a, __ATOMIC_RELAXED); /* { dg-error "argument 3 of .__atomic_exchange. must be a pointer type" } */
+ __atomic_compare_exchange (bar ().a, &b, &c, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED); /* { dg-error "argument 1 of .__atomic_compare_exchange. must be a non-void pointer type" } */
+ __atomic_compare_exchange (&b, bar ().a, &c, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED); /* { dg-error "argument 2 of .__atomic_compare_exchange. must be a pointer type" } */
+ __atomic_compare_exchange (&b, &c, bar ().a, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED); /* { dg-error "argument 3 of .__atomic_compare_exchange. must be a pointer type" } */
+}
--- gcc/testsuite/c-c++-common/pr82112.c (nonexistent)
+++ gcc/testsuite/c-c++-common/pr82112.c (revision 252003)
@@ -0,0 +1,13 @@
+/* PR target/82112 */
+/* { dg-do compile } */
+
+int c[10], d[10], e[10], f[10], g[10], h[10], i[10], j[10], k[10], l[10];
+
+void
+foo (void)
+{
+ __atomic_load (c, d, __ATOMIC_ACQUIRE);
+ __atomic_store (e, f, __ATOMIC_SEQ_CST);
+ __atomic_exchange (g, h, i, __ATOMIC_RELAXED);
+ __atomic_compare_exchange (j, k, l, 1, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
+}

101
gcc7-pr82112-2.patch
View File

@ -1,101 +0,0 @@
2017-09-15 Jakub Jelinek <jakub@redhat.com>
Backported from mainline
2017-09-12 Jakub Jelinek <jakub@redhat.com>
PR target/82112
* config/rs6000/rs6000-c.c (altivec_resolve_overloaded_builtin): For
ALTIVEC_BUILTIN_VEC_LD if arg1 has array type call default_conversion
on it early, rather than manual conversion late. For
ALTIVEC_BUILTIN_VEC_ST if arg2 has array type call default_conversion
instead of performing manual conversion.
* gcc.target/powerpc/pr82112.c: New test.
* g++.dg/ext/altivec-18.C: New test.
--- gcc/config/rs6000/rs6000-c.c (revision 252027)
+++ gcc/config/rs6000/rs6000-c.c (revision 252028)
@@ -6489,7 +6489,13 @@ altivec_resolve_overloaded_builtin (loca
/* Strip qualifiers like "const" from the pointer arg. */
tree arg1_type = TREE_TYPE (arg1);
- if (!POINTER_TYPE_P (arg1_type) && TREE_CODE (arg1_type) != ARRAY_TYPE)
+ if (TREE_CODE (arg1_type) == ARRAY_TYPE && c_dialect_cxx ())
+ {
+ /* Force array-to-pointer decay for C++. */
+ arg1 = default_conversion (arg1);
+ arg1_type = TREE_TYPE (arg1);
+ }
+ if (!POINTER_TYPE_P (arg1_type))
goto bad;
tree inner_type = TREE_TYPE (arg1_type);
@@ -6509,15 +6515,6 @@ altivec_resolve_overloaded_builtin (loca
if (!ptrofftype_p (TREE_TYPE (arg0)))
arg0 = build1 (NOP_EXPR, sizetype, arg0);
- tree arg1_type = TREE_TYPE (arg1);
- if (TREE_CODE (arg1_type) == ARRAY_TYPE)
- {
- arg1_type = TYPE_POINTER_TO (TREE_TYPE (arg1_type));
- tree const0 = build_int_cstu (sizetype, 0);
- tree arg1_elt0 = build_array_ref (loc, arg1, const0);
- arg1 = build1 (ADDR_EXPR, arg1_type, arg1_elt0);
- }
-
tree addr = fold_build2_loc (loc, POINTER_PLUS_EXPR, arg1_type,
arg1, arg0);
tree aligned = fold_build2_loc (loc, BIT_AND_EXPR, arg1_type, addr,
@@ -6572,12 +6569,11 @@ altivec_resolve_overloaded_builtin (loca
arg1 = build1 (NOP_EXPR, sizetype, arg1);
tree arg2_type = TREE_TYPE (arg2);
- if (TREE_CODE (arg2_type) == ARRAY_TYPE)
+ if (TREE_CODE (arg2_type) == ARRAY_TYPE && c_dialect_cxx ())
{
- arg2_type = TYPE_POINTER_TO (TREE_TYPE (arg2_type));
- tree const0 = build_int_cstu (sizetype, 0);
- tree arg2_elt0 = build_array_ref (loc, arg2, const0);
- arg2 = build1 (ADDR_EXPR, arg2_type, arg2_elt0);
+ /* Force array-to-pointer decay for C++. */
+ arg2 = default_conversion (arg2);
+ arg2_type = TREE_TYPE (arg2);
}
/* Find the built-in to make sure a compatible one exists; if not
--- gcc/testsuite/gcc.target/powerpc/pr82112.c (nonexistent)
+++ gcc/testsuite/gcc.target/powerpc/pr82112.c (revision 252028)
@@ -0,0 +1,16 @@
+/* PR target/82112 */
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -std=gnu90" } */
+
+#include <altivec.h>
+
+struct __attribute__((aligned (16))) S { unsigned char c[64]; } bar (void);
+vector unsigned char v;
+
+void
+foo (void)
+{
+ vec_ld (0, bar ().c); /* { dg-error "invalid parameter combination for AltiVec intrinsic" } */
+ vec_st (v, 0, bar ().c); /* { dg-error "invalid parameter combination for AltiVec intrinsic" } */
+}
--- gcc/testsuite/g++.dg/ext/altivec-18.C (nonexistent)
+++ gcc/testsuite/g++.dg/ext/altivec-18.C (revision 252028)
@@ -0,0 +1,14 @@
+// PR target/82112
+// { dg-do compile { target powerpc*-*-* } }
+// { dg-require-effective-target powerpc_altivec_ok }
+// { dg-options "-maltivec" }
+
+#include <altivec.h>
+
+__attribute__((aligned (16))) extern const unsigned char c[16];
+
+void
+foo (void)
+{
+ vec_ld (0, c);
+}

84
gcc7-pr83556.patch Normal file
View File

@ -0,0 +1,84 @@
2017-12-23 Jakub Jelinek <jakub@redhat.com>
PR c++/83556
* tree.c (replace_placeholders_r): Pass NULL as last argument to
cp_walk_tree instead of d->pset. If non-TREE_CONSTANT and
non-PLACEHOLDER_EXPR tree has been seen already, set *walk_subtrees
to false and return.
(replace_placeholders): Pass NULL instead of &pset as last argument
to cp_walk_tree.
* g++.dg/cpp0x/pr83556.C: New test.
--- gcc/cp/tree.c.jj 2017-12-15 16:10:37.000000000 +0100
+++ gcc/cp/tree.c 2017-12-22 23:24:16.720428548 +0100
@@ -3106,6 +3106,11 @@ replace_placeholders_r (tree* t, int* wa
{
constructor_elt *ce;
vec<constructor_elt,va_gc> *v = CONSTRUCTOR_ELTS (*t);
+ if (d->pset->add (*t))
+ {
+ *walk_subtrees = false;
+ return NULL_TREE;
+ }
for (unsigned i = 0; vec_safe_iterate (v, i, &ce); ++i)
{
tree *valp = &ce->value;
@@ -3125,7 +3130,7 @@ replace_placeholders_r (tree* t, int* wa
valp = &TARGET_EXPR_INITIAL (*valp);
}
d->obj = subob;
- cp_walk_tree (valp, replace_placeholders_r, data_, d->pset);
+ cp_walk_tree (valp, replace_placeholders_r, data_, NULL);
d->obj = obj;
}
*walk_subtrees = false;
@@ -3133,6 +3138,8 @@ replace_placeholders_r (tree* t, int* wa
}
default:
+ if (d->pset->add (*t))
+ *walk_subtrees = false;
break;
}
@@ -3161,7 +3168,7 @@ replace_placeholders (tree exp, tree obj
replace_placeholders_t data = { obj, false, &pset };
if (TREE_CODE (exp) == TARGET_EXPR)
tp = &TARGET_EXPR_INITIAL (exp);
- cp_walk_tree (tp, replace_placeholders_r, &data, &pset);
+ cp_walk_tree (tp, replace_placeholders_r, &data, NULL);
if (seen_p)
*seen_p = data.seen;
return exp;
--- gcc/testsuite/g++.dg/cpp0x/pr83556.C.jj 2017-12-22 23:30:10.771126002 +0100
+++ gcc/testsuite/g++.dg/cpp0x/pr83556.C 2017-12-22 23:29:21.000000000 +0100
@@ -0,0 +1,28 @@
+// PR c++/83556
+// { dg-do run { target c++11 } }
+
+int
+foo ()
+{
+ return 1;
+}
+
+struct A
+{
+ int a = foo ();
+ int b = 1;
+ int c = a ? 1 * b : 2 * b;
+};
+
+struct B
+{
+ A d {};
+};
+
+int
+main ()
+{
+ B e {};
+ if (e.d.c != 1)
+ __builtin_abort ();
+}