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| author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-08-30 11:17:12 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-08-30 11:17:12 +0000 |
| commit | 401581b6eb93369a5e60c05e9f13d072ba23cff4 (patch) | |
| tree | 6f33c3a098eadeec40ab3a1d2b8e5a10578f856d /gcc/rtlhooks.c | |
| parent | f8265fb8e8e12c92eab0393488824bfb788ebfff (diff) | |
| download | gcc-401581b6eb93369a5e60c05e9f13d072ba23cff4.zip gcc-401581b6eb93369a5e60c05e9f13d072ba23cff4.tar.gz gcc-401581b6eb93369a5e60c05e9f13d072ba23cff4.tar.bz2 | |
[49/77] Simplify nonzero/num_sign_bits hooks
The two implementations of the reg_nonzero_bits and reg_num_sign_bits
hooks ignored the "known_x", "known_mode" and "known_ret" arguments,
so this patch removes them. It adds a new scalar_int_mode parameter
that specifies the mode of "x". (This mode might be different from
"mode", which is the mode in which "x" is used.)
2017-08-30 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* rtl.h (rtl_hooks::reg_nonzero_bits): Add a scalar_int_mode
parameter for the mode of "x". Remove the "known_x", "known_mode"
and "known_ret" arguments. Change the type of the mode argument
to scalar_int_mode.
(rtl_hooks:reg_num_sign_bit_copies): Likewise.
* combine.c (reg_nonzero_bits_for_combine): Update accordingly.
(reg_num_sign_bit_copies_for_combine): Likewise.
* rtlanal.c (nonzero_bits1): Likewise.
(num_sign_bit_copies1): Likewise.
* rtlhooks-def.h (reg_nonzero_bits_general): Likewise.
(reg_num_sign_bit_copies_general): Likewise.
* rtlhooks.c (reg_num_sign_bit_copies_general): Likewise.
(reg_nonzero_bits_general): Likewise.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r251501
Diffstat (limited to 'gcc/rtlhooks.c')
| -rw-r--r-- | gcc/rtlhooks.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/gcc/rtlhooks.c b/gcc/rtlhooks.c index 9704e2a..b008b15 100644 --- a/gcc/rtlhooks.c +++ b/gcc/rtlhooks.c @@ -86,23 +86,15 @@ gen_lowpart_general (machine_mode mode, rtx x) } rtx -reg_num_sign_bit_copies_general (const_rtx x ATTRIBUTE_UNUSED, - machine_mode mode ATTRIBUTE_UNUSED, - const_rtx known_x ATTRIBUTE_UNUSED, - machine_mode known_mode ATTRIBUTE_UNUSED, - unsigned int known_ret ATTRIBUTE_UNUSED, - unsigned int *result ATTRIBUTE_UNUSED) +reg_num_sign_bit_copies_general (const_rtx, scalar_int_mode, scalar_int_mode, + unsigned int *) { return NULL; } rtx -reg_nonzero_bits_general (const_rtx x ATTRIBUTE_UNUSED, - machine_mode mode ATTRIBUTE_UNUSED, - const_rtx known_x ATTRIBUTE_UNUSED, - machine_mode known_mode ATTRIBUTE_UNUSED, - unsigned HOST_WIDE_INT known_ret ATTRIBUTE_UNUSED, - unsigned HOST_WIDE_INT *nonzero ATTRIBUTE_UNUSED) +reg_nonzero_bits_general (const_rtx, scalar_int_mode, scalar_int_mode, + unsigned HOST_WIDE_INT *) { return NULL; } |