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| author | Bernd Schmidt <bernds@codesourcery.com> | 2011-07-06 14:44:30 +0000 |
|---|---|---|
| committer | Bernd Schmidt <bernds@gcc.gnu.org> | 2011-07-06 14:44:30 +0000 |
| commit | d0edd768de548507869ddec157f2e8b3551a6231 (patch) | |
| tree | 95d75bc9dd3fb8ff5d3161011734bcfd2796c8bf /gcc/expr.c | |
| parent | e5cabdfba868da1d67a6fa317846dbd5dfd83ee5 (diff) | |
| download | gcc-d0edd768de548507869ddec157f2e8b3551a6231.zip gcc-d0edd768de548507869ddec157f2e8b3551a6231.tar.gz gcc-d0edd768de548507869ddec157f2e8b3551a6231.tar.bz2 | |
machmode.h (TRULY_NOOP_TRUNCATION_MODES_P): New macro.
* 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.
From-SVN: r175921
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 10 |
1 files changed, 4 insertions, 6 deletions
@@ -586,8 +586,7 @@ convert_move (rtx to, rtx from, int unsignedp) /* For truncation, usually we can just refer to FROM in a narrower mode. */ if (GET_MODE_BITSIZE (to_mode) < GET_MODE_BITSIZE (from_mode) - && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (to_mode), - GET_MODE_BITSIZE (from_mode))) + && TRULY_NOOP_TRUNCATION_MODES_P (to_mode, from_mode)) { if (!((MEM_P (from) && ! MEM_VOLATILE_P (from) @@ -625,8 +624,7 @@ convert_move (rtx to, rtx from, int unsignedp) if (((can_extend_p (to_mode, intermediate, unsignedp) != CODE_FOR_nothing) || (GET_MODE_SIZE (to_mode) < GET_MODE_SIZE (intermediate) - && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (to_mode), - GET_MODE_BITSIZE (intermediate)))) + && TRULY_NOOP_TRUNCATION_MODES_P (to_mode, intermediate))) && (can_extend_p (intermediate, from_mode, unsignedp) != CODE_FOR_nothing)) { @@ -754,8 +752,8 @@ convert_modes (enum machine_mode mode, enum machine_mode oldmode, rtx x, int uns || (REG_P (x) && (! HARD_REGISTER_P (x) || HARD_REGNO_MODE_OK (REGNO (x), mode)) - && TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode), - GET_MODE_BITSIZE (GET_MODE (x))))))))) + && TRULY_NOOP_TRUNCATION_MODES_P (mode, + GET_MODE (x)))))))) { /* ?? If we don't know OLDMODE, we have to assume here that X does not need sign- or zero-extension. This may not be |