Remove aarch64_bitmasks, aarch64_build_bitmask_table and aarch64_bitmasks_cmp
as they are no longer
used by the immediate generation code.
No change in generated code, passes GCC regression tests/bootstrap.
ChangeLog:
2015-09-02 Wilco Dijkstra <wdijk...@arm.com>
* gcc/config/aarch64/aarch64.c (aarch64_bitmasks): Remove.
(AARCH64_NUM_BITMASKS) remove. (aarch64_bitmasks_cmp): Remove.
(aarch64_build_bitmask_table): Remove.
---
gcc/config/aarch64/aarch64.c | 69 --------------------------------------------
1 file changed, 69 deletions(-)
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index 070c68b..0bc6b19 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,
@@ -3172,67 +3166,6 @@ 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
@@ -7828,8 +7761,6 @@ 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
--
1.8.3
