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* [gcc/devel/omp/gcc-12] openmp: Metadirective fixes
@ 2022-06-29 14:43 Kwok Yeung
0 siblings, 0 replies; only message in thread
From: Kwok Yeung @ 2022-06-29 14:43 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:67310930e695f7b9a2ad2437386324fd74d8f1b0
commit 67310930e695f7b9a2ad2437386324fd74d8f1b0
Author: Kwok Cheung Yeung <kcy@codesourcery.com>
Date: Tue Jan 25 11:40:58 2022 -0800
openmp: Metadirective fixes
Fix regressions introduced by block/statement skipping.
If user condition selector is constant, do not return it as a dynamic
selector.
2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
gcc/c/
* c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Track
bracket depth separately from nesting depth.
gcc/cp/
* parser.cc (cp_parser_skip_to_end_of_statement): Revert.
(cp_parser_skip_to_end_of_block_or_statement): Track bracket depth
separately from nesting depth.
gcc/
* omp-general.cc (omp_dynamic_cond): Do not return user condition if
constant.
Diff:
---
gcc/ChangeLog.omp | 5 +++++
gcc/c/ChangeLog.omp | 5 +++++
gcc/c/c-parser.cc | 9 ++++++---
gcc/cp/ChangeLog.omp | 6 ++++++
gcc/cp/parser.cc | 20 ++++++--------------
gcc/omp-general.cc | 8 ++++++--
6 files changed, 34 insertions(+), 19 deletions(-)
diff --git a/gcc/ChangeLog.omp b/gcc/ChangeLog.omp
index 369e8c9e500..5a7891f02ec 100644
--- a/gcc/ChangeLog.omp
+++ b/gcc/ChangeLog.omp
@@ -1,3 +1,8 @@
+2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
+
+ * omp-general.cc (omp_dynamic_cond): Do not return user condition if
+ constant.
+
2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
* omp-general.cc (omp_check_context_selector): Revert string length
diff --git a/gcc/c/ChangeLog.omp b/gcc/c/ChangeLog.omp
index 39f82752f9e..103bf158527 100644
--- a/gcc/c/ChangeLog.omp
+++ b/gcc/c/ChangeLog.omp
@@ -1,3 +1,8 @@
+2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
+
+ * c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Track
+ bracket depth separately from nesting depth.
+
2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
* c-parser.cc (c_parser_skip_to_end_of_block_or_statement): Handle
diff --git a/gcc/c/c-parser.cc b/gcc/c/c-parser.cc
index dd7338de51f..d215ad62103 100644
--- a/gcc/c/c-parser.cc
+++ b/gcc/c/c-parser.cc
@@ -1344,6 +1344,7 @@ static void
c_parser_skip_to_end_of_block_or_statement (c_parser *parser)
{
unsigned nesting_depth = 0;
+ int bracket_depth = 0;
bool save_error = parser->error;
while (true)
@@ -1366,7 +1367,7 @@ c_parser_skip_to_end_of_block_or_statement (c_parser *parser)
case CPP_SEMICOLON:
/* If the next token is a ';', we have reached the
end of the statement. */
- if (!nesting_depth)
+ if (!nesting_depth && bracket_depth <= 0)
{
/* Consume the ';'. */
c_parser_consume_token (parser);
@@ -1394,11 +1395,13 @@ c_parser_skip_to_end_of_block_or_statement (c_parser *parser)
/* Track parentheses in case the statement is a standalone 'for'
statement - we want to skip over the semicolons separating the
operands. */
- nesting_depth++;
+ if (nesting_depth == 0)
+ ++bracket_depth;
break;
case CPP_CLOSE_PAREN:
- nesting_depth--;
+ if (nesting_depth == 0)
+ --bracket_depth;
break;
case CPP_PRAGMA:
diff --git a/gcc/cp/ChangeLog.omp b/gcc/cp/ChangeLog.omp
index c1ef9a1651e..31b98884749 100644
--- a/gcc/cp/ChangeLog.omp
+++ b/gcc/cp/ChangeLog.omp
@@ -1,3 +1,9 @@
+2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
+
+ * parser.cc (cp_parser_skip_to_end_of_statement): Revert.
+ (cp_parser_skip_to_end_of_block_or_statement): Track bracket depth
+ separately from nesting depth.
+
2022-01-25 Kwok Cheung Yeung <kcy@codesourcery.com>
* parser.cc (cp_parser_skip_to_end_of_statement): Handle parentheses.
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index 57df1e2fa80..ee838ea28f4 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -3931,17 +3931,6 @@ cp_parser_skip_to_end_of_statement (cp_parser* parser)
++nesting_depth;
break;
- case CPP_OPEN_PAREN:
- /* Track parentheses in case the statement is a standalone 'for'
- statement - we want to skip over the semicolons separating the
- operands. */
- ++nesting_depth;
- break;
-
- case CPP_CLOSE_PAREN:
- --nesting_depth;
- break;
-
case CPP_KEYWORD:
if (token->keyword != RID__EXPORT
&& token->keyword != RID__MODULE
@@ -3991,6 +3980,7 @@ static void
cp_parser_skip_to_end_of_block_or_statement (cp_parser* parser)
{
int nesting_depth = 0;
+ int bracket_depth = 0;
/* Unwind generic function template scope if necessary. */
if (parser->fully_implicit_function_template_p)
@@ -4012,7 +4002,7 @@ cp_parser_skip_to_end_of_block_or_statement (cp_parser* parser)
case CPP_SEMICOLON:
/* Stop if this is an unnested ';'. */
- if (!nesting_depth)
+ if (!nesting_depth && bracket_depth <= 0)
nesting_depth = -1;
break;
@@ -4035,11 +4025,13 @@ cp_parser_skip_to_end_of_block_or_statement (cp_parser* parser)
/* Track parentheses in case the statement is a standalone 'for'
statement - we want to skip over the semicolons separating the
operands. */
- nesting_depth++;
+ if (nesting_depth == 0)
+ bracket_depth++;
break;
case CPP_CLOSE_PAREN:
- nesting_depth--;
+ if (nesting_depth == 0)
+ bracket_depth--;
break;
case CPP_KEYWORD:
diff --git a/gcc/omp-general.cc b/gcc/omp-general.cc
index 19f67f817ae..1e66cd7bce6 100644
--- a/gcc/omp-general.cc
+++ b/gcc/omp-general.cc
@@ -2007,7 +2007,7 @@ omp_get_context_selector (tree ctx, const char *set, const char *sel)
}
/* Return a tree expression representing the dynamic part of the context
- * selector CTX. */
+ selector CTX. */
static tree
omp_dynamic_cond (tree ctx)
@@ -2018,8 +2018,12 @@ omp_dynamic_cond (tree ctx)
tree expr_list = TREE_VALUE (user);
gcc_assert (TREE_PURPOSE (expr_list) == NULL_TREE);
- return TREE_VALUE (expr_list);
+
+ /* The user condition is not dynamic if it is constant. */
+ if (!tree_fits_shwi_p (TREE_VALUE (expr_list)))
+ return TREE_VALUE (expr_list);
}
+
return NULL_TREE;
}
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