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| author | Richard Sandiford <richard.sandiford@arm.com> | 2014-10-27 18:43:14 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2014-10-27 18:43:14 +0000 |
| commit | e4d1b49512146579605e588402d6739ae53626f5 (patch) | |
| tree | f1aaa4a3fc22a49eb84cb098bc7fae02329ba777 /gcc | |
| parent | 8dc252595b9cd211faca8929ab2149751a8bdfdc (diff) | |
| download | gcc-e4d1b49512146579605e588402d6739ae53626f5.zip gcc-e4d1b49512146579605e588402d6739ae53626f5.tar.gz gcc-e4d1b49512146579605e588402d6739ae53626f5.tar.bz2 | |
i386.c (ix86_loop_memcount): Delete.
gcc/
* config/i386/i386.c (ix86_loop_memcount): Delete.
(ix86_loop_unroll_adjust): Use FOR_EACH_SUBRTX.
From-SVN: r216761
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 47 |
2 files changed, 22 insertions, 30 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index aed92bb..2c7550a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2014-10-27 Richard Sandiford <richard.sandiford@arm.com> + * config/i386/i386.c (ix86_loop_memcount): Delete. + (ix86_loop_unroll_adjust): Use FOR_EACH_SUBRTX. + +2014-10-27 Richard Sandiford <richard.sandiford@arm.com> + * config/i386/i386.c (find_constant_1): Delete. (find_constant): Use FOR_EACH_SUBRTX. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 7855a4b..6ffafa9 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -47412,29 +47412,6 @@ ix86_simd_clone_usable (struct cgraph_node *node) } } -/* This function gives out the number of memory references. - This value determines the unrolling factor for - bdver3 and bdver4 architectures. */ - -static int -ix86_loop_memcount (rtx *x, unsigned *mem_count) -{ - if (*x != NULL_RTX && MEM_P (*x)) - { - enum machine_mode mode; - unsigned int n_words; - - mode = GET_MODE (*x); - n_words = GET_MODE_SIZE (mode) / UNITS_PER_WORD; - - if (n_words > 4) - (*mem_count)+=2; - else - (*mem_count)+=1; - } - return 0; -} - /* This function adjusts the unroll factor based on the hardware capabilities. For ex, bdver3 has a loop buffer which makes unrolling of smaller @@ -47453,15 +47430,25 @@ ix86_loop_unroll_adjust (unsigned nunroll, struct loop *loop) if (!TARGET_ADJUST_UNROLL) return nunroll; - /* Count the number of memory references within the loop body. */ + /* Count the number of memory references within the loop body. + This value determines the unrolling factor for bdver3 and bdver4 + architectures. */ + subrtx_iterator::array_type array; bbs = get_loop_body (loop); for (i = 0; i < loop->num_nodes; i++) - { - for (insn = BB_HEAD (bbs[i]); insn != BB_END (bbs[i]); insn = NEXT_INSN (insn)) - if (NONDEBUG_INSN_P (insn)) - for_each_rtx_in_insn (&insn, (rtx_function) ix86_loop_memcount, - &mem_count); - } + FOR_BB_INSNS (bbs[i], insn) + if (NONDEBUG_INSN_P (insn)) + FOR_EACH_SUBRTX (iter, array, insn, NONCONST) + if (const_rtx x = *iter) + if (MEM_P (x)) + { + enum machine_mode mode = GET_MODE (x); + unsigned int n_words = GET_MODE_SIZE (mode) / UNITS_PER_WORD; + if (n_words > 4) + mem_count += 2; + else + mem_count += 1; + } free (bbs); if (mem_count && mem_count <=32) |