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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-12-21 07:00:46 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-12-21 07:00:46 +0000 |
| commit | 68184180f25f3c89ebcb9202ff3235f936bcdc78 (patch) | |
| tree | 80c76ceffc762df432c6b9871357d8642769e61e /gcc/rtl.h | |
| parent | a15b25dcdcf597e01f5079b2bc44c1430b5e7719 (diff) | |
| download | gcc-68184180f25f3c89ebcb9202ff3235f936bcdc78.zip gcc-68184180f25f3c89ebcb9202ff3235f936bcdc78.tar.gz gcc-68184180f25f3c89ebcb9202ff3235f936bcdc78.tar.bz2 | |
poly_int: REG_ARGS_SIZE
This patch adds new utility functions for manipulating REG_ARGS_SIZE
notes and allows the notes to carry polynomial as well as constant sizes.
The code was inconsistent about whether INT_MIN or HOST_WIDE_INT_MIN
should be used to represent an unknown size. The patch uses
HOST_WIDE_INT_MIN throughout.
2017-12-21 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* rtl.h (get_args_size, add_args_size_note): New functions.
(find_args_size_adjust): Return a poly_int64 rather than a
HOST_WIDE_INT.
(fixup_args_size_notes): Likewise. Make the same change to the
end_args_size parameter.
* rtlanal.c (get_args_size, add_args_size_note): New functions.
* builtins.c (expand_builtin_trap): Use add_args_size_note.
* calls.c (emit_call_1): Likewise.
* explow.c (adjust_stack_1): Likewise.
* cfgcleanup.c (old_insns_match_p): Update use of
find_args_size_adjust.
* combine.c (distribute_notes): Track polynomial arg sizes.
* dwarf2cfi.c (dw_trace_info): Change beg_true_args_size,
end_true_args_size, beg_delay_args_size and end_delay_args_size
from HOST_WIDE_INT to poly_int64.
(add_cfi_args_size): Take the args_size as a poly_int64 rather
than a HOST_WIDE_INT.
(notice_args_size, notice_eh_throw, maybe_record_trace_start)
(maybe_record_trace_start_abnormal, scan_trace, connect_traces): Track
polynomial arg sizes.
* emit-rtl.c (try_split): Use get_args_size.
* recog.c (peep2_attempt): Likewise.
* reload1.c (reload_as_needed): Likewise.
* expr.c (find_args_size_adjust): Return the adjustment as a
poly_int64 rather than a HOST_WIDE_INT.
(fixup_args_size_notes): Change end_args_size from a HOST_WIDE_INT
to a poly_int64 and change the return type in the same way.
(emit_single_push_insn): Track polynomial arg sizes.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r255919
Diffstat (limited to 'gcc/rtl.h')
| -rw-r--r-- | gcc/rtl.h | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -3355,6 +3355,7 @@ extern rtx get_related_value (const_rtx); extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT); extern void split_const (rtx, rtx *, rtx *); extern rtx strip_offset (rtx, poly_int64_pod *); +extern poly_int64 get_args_size (const_rtx); extern bool unsigned_reg_p (rtx); extern int reg_mentioned_p (const_rtx, const_rtx); extern int count_occurrences (const_rtx, const_rtx, int); @@ -3390,6 +3391,7 @@ extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int); extern rtx alloc_reg_note (enum reg_note, rtx, rtx); extern void add_reg_note (rtx, enum reg_note, rtx); extern void add_int_reg_note (rtx_insn *, enum reg_note, int); +extern void add_args_size_note (rtx_insn *, poly_int64); extern void add_shallow_copy_of_reg_note (rtx_insn *, rtx); extern rtx duplicate_reg_note (rtx); extern void remove_note (rtx_insn *, const_rtx); @@ -3979,8 +3981,8 @@ extern void emit_jump (rtx); /* In expr.c */ extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT, unsigned int, int); -extern HOST_WIDE_INT find_args_size_adjust (rtx_insn *); -extern int fixup_args_size_notes (rtx_insn *, rtx_insn *, int); +extern poly_int64 find_args_size_adjust (rtx_insn *); +extern poly_int64 fixup_args_size_notes (rtx_insn *, rtx_insn *, poly_int64); /* In expmed.c */ extern void init_expmed (void); |