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| author | Roger Sayle <roger@eyesopen.com> | 2006-08-26 23:51:14 +0000 |
|---|---|---|
| committer | Roger Sayle <sayle@gcc.gnu.org> | 2006-08-26 23:51:14 +0000 |
| commit | c782c2fed844c4e6e1ea4944866e166ae69fcae2 (patch) | |
| tree | 69dba2343ca72d778fac60a1c90248608167d71f /gcc/tree.h | |
| parent | 52ccd5770a6d24a8b13e51817d4f1ba38b8528c6 (diff) | |
| download | gcc-c782c2fed844c4e6e1ea4944866e166ae69fcae2.zip gcc-c782c2fed844c4e6e1ea4944866e166ae69fcae2.tar.gz gcc-c782c2fed844c4e6e1ea4944866e166ae69fcae2.tar.bz2 | |
tree.h (CASE_LOW_SEEN, [...]): New macros for manipulating temporary visit flags on CASE_LABEL_EXPRs.
* tree.h (CASE_LOW_SEEN, CASE_HIGH_SEEN): New macros for manipulating
temporary visit flags on CASE_LABEL_EXPRs.
* c-common.c (match_case_to_enum): Add function comment. Avoid
O(N) loop, by looking up both CASE_LOW_SEEN and CASE_HIGH_SEEN.
(c_do_switch_warnings): Reorganize to record CASE_LOW_SEEN and
CASE_HIGH_SEEN for enumerated types. If the switch expression is
a constant, only warn if that constant value isn't handled.
* gcc.dg/Wswitch-enum-2.c: New test case.
* gcc.dg/Wswitch-enum-3.c: Likewise.
From-SVN: r116481
Diffstat (limited to 'gcc/tree.h')
| -rw-r--r-- | gcc/tree.h | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -395,6 +395,7 @@ struct tree_common GTY(()) In a STMT_EXPR, it means we want the result of the enclosed expression. CALL_EXPR_TAILCALL in CALL_EXPR + CASE_LOW_SEEN in CASE_LABEL_EXPR static_flag: @@ -413,6 +414,7 @@ struct tree_common GTY(()) EH_FILTER_MUST_NOT_THROW in EH_FILTER_EXPR TYPE_REF_CAN_ALIAS_ALL in POINTER_TYPE, REFERENCE_TYPE + CASE_HIGH_SEEN in CASE_LABEL_EXPR public_flag: @@ -1024,6 +1026,11 @@ extern void omp_clause_range_check_failed (const tree, const char *, int, call optimizations. */ #define CALL_EXPR_TAILCALL(NODE) (CALL_EXPR_CHECK(NODE)->common.addressable_flag) +/* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the + CASE_LOW operand has been processed. */ +#define CASE_LOW_SEEN(NODE) \ + (CASE_LABEL_EXPR_CHECK (NODE)->common.addressable_flag) + /* In a VAR_DECL, nonzero means allocate static storage. In a FUNCTION_DECL, nonzero if function has been defined. In a CONSTRUCTOR, nonzero means allocate static storage. @@ -1037,6 +1044,11 @@ extern void omp_clause_range_check_failed (const tree, const char *, int, of its scope. */ #define CLEANUP_EH_ONLY(NODE) ((NODE)->common.static_flag) +/* Used as a temporary field on a CASE_LABEL_EXPR to indicate that the + CASE_HIGH operand has been processed. */ +#define CASE_HIGH_SEEN(NODE) \ + (CASE_LABEL_EXPR_CHECK (NODE)->common.static_flag) + /* In an expr node (usually a conversion) this means the node was made implicitly and should not lead to any sort of warning. In a decl node, warnings concerning the decl should be suppressed. This is used at |