diff options
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/genconfig.c | 18 | ||||
| -rw-r--r-- | gcc/simplify-rtx.c | 2 |
3 files changed, 28 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index af05c98c98e..1aec9adcc95 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2014-07-02 Segher Boessenkool <segher@kernel.crashing.org> + + * genconfig.c (have_rotate_flag, have_rotatert_flag): New variables. + (walk_insn_part) <ROTATE, ROTATERT>: New cases. + (main): Conditionally write HAVE_rotate resp. HAVE_rotatert. + * simplify-rtx.c (simplify_binary_operation_1) <ROTATE, ROTATERT>: + Only do the transformation if both HAVE_rotate and HAVE_rotatert. + 2014-07-02 Christian Bruel <christian.bruel@st.com> PR target/29349 diff --git a/gcc/genconfig.c b/gcc/genconfig.c index cafa8d3040a..d1996c3af5d 100644 --- a/gcc/genconfig.c +++ b/gcc/genconfig.c @@ -36,6 +36,8 @@ static int have_cc0_flag; static int have_cmove_flag; static int have_cond_exec_flag; static int have_lo_sum_flag; +static int have_rotate_flag; +static int have_rotatert_flag; static int have_peephole_flag; static int have_peephole2_flag; @@ -117,6 +119,16 @@ walk_insn_part (rtx part, int recog_p, int non_pc_set_src) have_lo_sum_flag = 1; return; + case ROTATE: + if (recog_p) + have_rotate_flag = 1; + return; + + case ROTATERT: + if (recog_p) + have_rotatert_flag = 1; + return; + case SET: walk_insn_part (SET_DEST (part), 0, recog_p); walk_insn_part (SET_SRC (part), recog_p, @@ -346,6 +358,12 @@ main (int argc, char **argv) if (have_lo_sum_flag) printf ("#define HAVE_lo_sum 1\n"); + if (have_rotate_flag) + printf ("#define HAVE_rotate 1\n"); + + if (have_rotatert_flag) + printf ("#define HAVE_rotatert 1\n"); + if (have_peephole_flag) printf ("#define HAVE_peephole 1\n"); diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 181b56fb8c0..07b93538969 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -3076,6 +3076,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, prefer left rotation, if op1 is from bitsize / 2 + 1 to bitsize - 1, use other direction of rotate with 1 .. bitsize / 2 - 1 amount instead. */ +#if defined(HAVE_rotate) && defined(HAVE_rotatert) if (CONST_INT_P (trueop1) && IN_RANGE (INTVAL (trueop1), GET_MODE_BITSIZE (mode) / 2 + (code == ROTATE), @@ -3083,6 +3084,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, return simplify_gen_binary (code == ROTATE ? ROTATERT : ROTATE, mode, op0, GEN_INT (GET_MODE_BITSIZE (mode) - INTVAL (trueop1))); +#endif /* FALLTHRU */ case ASHIFTRT: if (trueop1 == CONST0_RTX (mode)) |