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authorbernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>2011-07-06 14:44:30 +0000
committerbernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4>2011-07-06 14:44:30 +0000
commit396f21304b3d9cdcaea3b88994cb049952ffc9cb (patch)
tree95d75bc9dd3fb8ff5d3161011734bcfd2796c8bf /gcc/machmode.h
parentb60af16f749ec4e5611c886b5ce7a80a64f62b6f (diff)
downloadgcc-396f21304b3d9cdcaea3b88994cb049952ffc9cb.tar.gz
* machmode.h (TRULY_NOOP_TRUNCATION_MODES_P): New macro.
* combine.c (make_extraction, gen_lowpart_or_truncate, apply_distributive_law, simplify_comparison, reg_truncated_to_mode, record_truncated_value): Use it. * cse.c (notreg_cost): Likewise. * expmed.c (store_bit_field_1, extract_bit_field_1): Likewise. * expr.c (convert_move, convert_modes): Likewise. * optabs.c (expand_binop, expand_unop): Likewise. * postreload.c (move2add_last_label): Likewise. * regmove.c (optimize_reg_copy_3): Likewise. * rtlhooks.c (gen_lowpart_general): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@175921 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/machmode.h')
-rw-r--r--gcc/machmode.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/machmode.h b/gcc/machmode.h
index bdcd02d435d..30d1a8ccb38 100644
--- a/gcc/machmode.h
+++ b/gcc/machmode.h
@@ -275,4 +275,8 @@ extern enum machine_mode ptr_mode;
/* Target-dependent machine mode initialization - in insn-modes.c. */
extern void init_adjust_machine_modes (void);
+#define TRULY_NOOP_TRUNCATION_MODES_P(MODE1, MODE2) \
+ TRULY_NOOP_TRUNCATION (GET_MODE_PRECISION (MODE1), \
+ GET_MODE_PRECISION (MODE2))
+
#endif /* not HAVE_MACHINE_MODES */