GCC Middle and Back End API Reference
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#include <gimple.h>
Data Fields | |
tree | rhs |
tree | lhs |
ENUM_BITFIELD(gimple_code) code unsigned int | no_warning: 1 |
unsigned int | visited: 1 |
unsigned int | nontemporal_move: 1 |
unsigned int | plf: 2 |
unsigned | modified: 1 |
unsigned | has_volatile_ops: 1 |
unsigned int | subcode: 16 |
unsigned | uid |
location_t | location |
unsigned | num_ops |
basic_block | bb |
gimple | next |
gimple | prev |
code == GIMPLE_OMP_ATOMIC_LOAD. Note: This is based on gimple_statement_base, not g_s_omp, because g_s_omp contains a sequence, which we don't need here.
Tuples used for lowering of OMP_ATOMIC. Although the form of the OMP_ATOMIC expression is very simple (just in form mem op= expr), various implicit conversions may cause the expression to become more complex, so that it does not fit the gimple grammar very well. To overcome this problem, OMP_ATOMIC is rewritten as a sequence of two codes in gimplification:
GIMPLE_OMP_LOAD (tmp, mem) val = some computations involving tmp; GIMPLE_OMP_STORE (val).
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inherited |
[ WORD 3 ] Basic block holding this statement.
Referenced by gimple_call_arg_flags().
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inherited |
Nonzero if this statement contains volatile operands.
tree gimple_statement_omp_atomic_load::lhs |
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inherited |
[ WORD 2 ] Locus information for debug info.
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inherited |
Nonzero if this statement has been modified and needs to have its operands rescanned.
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inherited |
[ WORD 4-5 ] Linked lists of gimple statements. The next pointers form a NULL terminated list, the prev pointers are a cyclic list. A gimple statement is hence also a double-ended list of statements, with the pointer itself being the first element, and the prev pointer being the last.
Referenced by gsi_insert_seq_nodes_after(), gsi_set_stmt(), and gsi_split_seq_after().
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inherited |
[ WORD 1 ] Main identifying code for a tuple. Nonzero if a warning should not be emitted on this tuple.
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inherited |
Nonzero if this tuple represents a non-temporal move.
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inherited |
Number of operands in this tuple.
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inherited |
Pass local flags. These flags are free for any pass to use as they see fit. Passes should not assume that these flags contain any useful value when the pass starts. Any initial state that the pass requires should be set on entry to the pass. See gimple_set_plf and gimple_plf for usage.
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inherited |
Referenced by gsi_insert_seq_before(), gsi_insert_seq_nodes_after(), gsi_set_stmt(), and gsi_split_seq_after().
tree gimple_statement_omp_atomic_load::rhs |
[ WORD 1-6 ] : base class [ WORD 7-8 ]
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inherited |
The SUBCODE field can be used for tuple-specific flags for tuples that do not require subcodes. Note that SUBCODE should be at least as wide as tree codes, as several tuples store tree codes in there.
Referenced by gimple_build_call_valist().
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inherited |
UID of this statement. This is used by passes that want to assign IDs to statements. It must be assigned and used by each pass. By default it should be assumed to contain garbage.
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inherited |
Nonzero if this tuple has been visited. Passes are responsible for clearing this bit before using it.