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author | Richard Sandiford <richard.sandiford@linaro.org> | 2017-08-30 11:17:45 +0000 |
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committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2017-08-30 11:17:45 +0000 |
commit | 04d6ea36a7f0b2124d1a102eae3727efddeb5875 (patch) | |
tree | 446be370e6d10f03b5bc3943b0280e093b8eb6b0 /gcc/expr.c | |
parent | 1a52709222c9c5fd3b9446d3ef1db6b87d020e13 (diff) | |
download | gcc-04d6ea36a7f0b2124d1a102eae3727efddeb5875.zip gcc-04d6ea36a7f0b2124d1a102eae3727efddeb5875.tar.gz gcc-04d6ea36a7f0b2124d1a102eae3727efddeb5875.tar.bz2 |
[53/77] Pass a mode to const_scalar_mask_from_tree
The caller of const_scalar_mask_from_tree has proven that
the mode is a MODE_INT, so this patch passes it down as a
scalar_int_mode. It also expands the comment a little.
2017-08-30 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* expr.c (const_scalar_mask_from_tree): Add a mode argument.
Expand commentary.
(expand_expr_real_1): Update call accordingly.
Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>
From-SVN: r251505
Diffstat (limited to 'gcc/expr.c')
-rw-r--r-- | gcc/expr.c | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -99,7 +99,7 @@ static void emit_single_push_insn (machine_mode, rtx, tree); static void do_tablejump (rtx, machine_mode, rtx, rtx, rtx, profile_probability); static rtx const_vector_from_tree (tree); -static rtx const_scalar_mask_from_tree (tree); +static rtx const_scalar_mask_from_tree (scalar_int_mode, tree); static tree tree_expr_size (const_tree); static HOST_WIDE_INT int_expr_size (tree); @@ -9969,7 +9969,7 @@ expand_expr_real_1 (tree exp, rtx target, machine_mode tmode, if (is_int_mode (mode, &int_mode)) { if (VECTOR_BOOLEAN_TYPE_P (TREE_TYPE (exp))) - return const_scalar_mask_from_tree (exp); + return const_scalar_mask_from_tree (int_mode, exp); else { tree type_for_mode @@ -11724,12 +11724,12 @@ const_vector_mask_from_tree (tree exp) return gen_rtx_CONST_VECTOR (mode, v); } -/* Return a CONST_INT rtx representing vector mask for - a VECTOR_CST of booleans. */ +/* EXP is a VECTOR_CST in which each element is either all-zeros or all-ones. + Return a constant scalar rtx of mode MODE in which bit X is set if element + X of EXP is nonzero. */ static rtx -const_scalar_mask_from_tree (tree exp) +const_scalar_mask_from_tree (scalar_int_mode mode, tree exp) { - machine_mode mode = TYPE_MODE (TREE_TYPE (exp)); wide_int res = wi::zero (GET_MODE_PRECISION (mode)); tree elt; unsigned i; |