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| author | Wilco Dijkstra <wdijkstr@arm.com> | 2015-09-20 16:41:26 +0000 |
|---|---|---|
| committer | Jiong Wang <jiwang@gcc.gnu.org> | 2015-09-20 16:41:26 +0000 |
| commit | 8fcbb4e328b3d7146160b33a8b4a396252127b4e (patch) | |
| tree | 43a3dae5ef3e85e8c33c67f5f404f3b0a58bd1c6 | |
| parent | 62c8d76c1037198e2400ff2f55adddf352988af7 (diff) | |
| download | gcc-8fcbb4e328b3d7146160b33a8b4a396252127b4e.zip gcc-8fcbb4e328b3d7146160b33a8b4a396252127b4e.tar.gz gcc-8fcbb4e328b3d7146160b33a8b4a396252127b4e.tar.bz2 | |
[AArch64][3/5] Remove dead code
2015-09-20 Wilco Dijkstra <wdijkstr@arm.com>
* config/aarch64/aarch64.c (aarch64_bitmasks): Remove.
(AARCH64_NUM_BITMASKS): Remove.
(aarch64_bitmasks_cmp): Remove.
(aarch64_build_bitmask_table): Remove.
From-SVN: r227948
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/aarch64/aarch64.c | 69 |
2 files changed, 7 insertions, 69 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index a4504b0..62fe65e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,12 @@ 2015-09-20 Wilco Dijkstra <wdijkstr@arm.com> + * config/aarch64/aarch64.c (aarch64_bitmasks): Remove. + (AARCH64_NUM_BITMASKS): Remove. + (aarch64_bitmasks_cmp): Remove. + (aarch64_build_bitmask_table): Remove. + +2015-09-20 Wilco Dijkstra <wdijkstr@arm.com> + * config/aarch64/aarch64.c (aarch64_internal_mov_immediate): Replace slow immediate matching loops with a faster algorithm. diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c index 8097c35..ca9fdbd 100644 --- a/gcc/config/aarch64/aarch64.c +++ b/gcc/config/aarch64/aarch64.c @@ -563,12 +563,6 @@ static const struct aarch64_option_extension all_extensions[] = increment address. */ static machine_mode aarch64_memory_reference_mode; -/* A table of valid AArch64 "bitmask immediate" values for - logical instructions. */ - -#define AARCH64_NUM_BITMASKS 5334 -static unsigned HOST_WIDE_INT aarch64_bitmasks[AARCH64_NUM_BITMASKS]; - typedef enum aarch64_cond_code { AARCH64_EQ = 0, AARCH64_NE, AARCH64_CS, AARCH64_CC, AARCH64_MI, AARCH64_PL, @@ -3263,67 +3257,6 @@ aarch64_tls_referenced_p (rtx x) } -static int -aarch64_bitmasks_cmp (const void *i1, const void *i2) -{ - const unsigned HOST_WIDE_INT *imm1 = (const unsigned HOST_WIDE_INT *) i1; - const unsigned HOST_WIDE_INT *imm2 = (const unsigned HOST_WIDE_INT *) i2; - - if (*imm1 < *imm2) - return -1; - if (*imm1 > *imm2) - return +1; - return 0; -} - - -static void -aarch64_build_bitmask_table (void) -{ - unsigned HOST_WIDE_INT mask, imm; - unsigned int log_e, e, s, r; - unsigned int nimms = 0; - - for (log_e = 1; log_e <= 6; log_e++) - { - e = 1 << log_e; - if (e == 64) - mask = ~(HOST_WIDE_INT) 0; - else - mask = ((HOST_WIDE_INT) 1 << e) - 1; - for (s = 1; s < e; s++) - { - for (r = 0; r < e; r++) - { - /* set s consecutive bits to 1 (s < 64) */ - imm = ((unsigned HOST_WIDE_INT)1 << s) - 1; - /* rotate right by r */ - if (r != 0) - imm = ((imm >> r) | (imm << (e - r))) & mask; - /* replicate the constant depending on SIMD size */ - switch (log_e) { - case 1: imm |= (imm << 2); - case 2: imm |= (imm << 4); - case 3: imm |= (imm << 8); - case 4: imm |= (imm << 16); - case 5: imm |= (imm << 32); - case 6: - break; - default: - gcc_unreachable (); - } - gcc_assert (nimms < AARCH64_NUM_BITMASKS); - aarch64_bitmasks[nimms++] = imm; - } - } - } - - gcc_assert (nimms == AARCH64_NUM_BITMASKS); - qsort (aarch64_bitmasks, nimms, sizeof (aarch64_bitmasks[0]), - aarch64_bitmasks_cmp); -} - - /* Return true if val can be encoded as a 12-bit unsigned immediate with a left shift of 0 or 12 bits. */ bool @@ -8059,8 +7992,6 @@ aarch64_override_options (void) || (aarch64_arch_string && valid_arch)) gcc_assert (explicit_arch != aarch64_no_arch); - aarch64_build_bitmask_table (); - aarch64_override_options_internal (&global_options); /* Save these options as the default ones in case we push and pop them later |