Prunes code from the trivial true/false conditions.
* tree-vect-stmts.cc (vectorizable_conversion):
---
gcc/tree-vect-stmts.cc | 63 +++++++++---------------------------------
1 file changed, 13 insertions(+), 50 deletions(-)
diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc
index cf986d030a1..21832d3e460 100644
--- a/gcc/tree-vect-stmts.cc
+++ b/gcc/tree-vect-stmts.cc
@@ -5706,12 +5706,7 @@ vectorizable_conversion (vec_info *vinfo,
/* Multiple types in SLP are handled by creating the appropriate number of
vectorized stmts for each SLP node. Hence, NCOPIES is always 1 in
case of SLP. */
- if (1)
- ncopies = 1;
- else if (modifier == NARROW_DST)
- ncopies = vect_get_num_copies (loop_vinfo, vectype_out);
- else
- ncopies = vect_get_num_copies (loop_vinfo, vectype_in);
+ ncopies = 1;
/* Sanity check: make sure that at least one copy of the vectorized stmt
needs to be generated. */
@@ -5871,16 +5866,11 @@ vectorizable_conversion (vec_info *vinfo,
else if (code == FLOAT_EXPR)
{
wide_int op_min_value, op_max_value;
- if (1)
- {
- tree def;
- /* ??? Merge ranges in case of more than one lane. */
- if (SLP_TREE_LANES (slp_op0) != 1
- || !(def = vect_get_slp_scalar_def (slp_op0, 0))
- || !vect_get_range_info (def, &op_min_value, &op_max_value))
- goto unsupported;
- }
- else if (!vect_get_range_info (op0, &op_min_value, &op_max_value))
+ tree def;
+ /* ??? Merge ranges in case of more than one lane. */
+ if (SLP_TREE_LANES (slp_op0) != 1
+ || !(def = vect_get_slp_scalar_def (slp_op0, 0))
+ || !vect_get_range_info (def, &op_min_value, &op_max_value))
goto unsupported;
cvt_type
@@ -5916,9 +5906,8 @@ vectorizable_conversion (vec_info *vinfo,
if (!vec_stmt) /* transformation not required. */
{
- if (1
- && (!vect_maybe_update_slp_op_vectype (slp_op0, vectype_in)
- || !vect_maybe_update_slp_op_vectype (slp_op1, vectype_in)))
+ if (!vect_maybe_update_slp_op_vectype (slp_op0, vectype_in)
+ || !vect_maybe_update_slp_op_vectype (slp_op1, vectype_in))
{
if (dump_enabled_p ())
dump_printf_loc (MSG_MISSED_OPTIMIZATION, vect_location,
@@ -5937,8 +5926,7 @@ vectorizable_conversion (vec_info *vinfo,
{
STMT_VINFO_TYPE (stmt_info) = type_demotion_vec_info_type;
/* The final packing step produces one vector result per copy. */
- unsigned int nvectors
- = (1 ? SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node) : ncopies);
+ unsigned int nvectors = SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node);
vect_model_promotion_demotion_cost (stmt_info, dt, nvectors,
multi_step_cvt, cost_vec,
widen_arith);
@@ -5950,9 +5938,7 @@ vectorizable_conversion (vec_info *vinfo,
per copy. MULTI_STEP_CVT is 0 for a single conversion,
so >> MULTI_STEP_CVT divides by 2^(number of steps - 1). */
unsigned int nvectors
- = (1
- ? SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node) >> multi_step_cvt
- : ncopies * 2);
+ = SLP_TREE_NUMBER_OF_VEC_STMTS (slp_node) >> multi_step_cvt;
vect_model_promotion_demotion_cost (stmt_info, dt, nvectors,
multi_step_cvt, cost_vec,
widen_arith);
@@ -6004,18 +5990,6 @@ vectorizable_conversion (vec_info *vinfo,
? vectype_out : cvt_type);
int ninputs = 1;
- if (0)
- {
- if (modifier == WIDEN)
- ;
- else if (modifier == NARROW_SRC || modifier == NARROW_DST)
- {
- if (multi_step_cvt)
- ninputs = vect_pow2 (multi_step_cvt);
- ninputs *= 2;
- }
- }
-
switch (modifier)
{
case NONE:
@@ -6046,10 +6020,7 @@ vectorizable_conversion (vec_info *vinfo,
gimple_set_lhs (new_stmt, new_temp);
vect_finish_stmt_generation (vinfo, stmt_info, new_stmt, gsi);
- if (1)
- slp_node->push_vec_def (new_stmt);
- else
- STMT_VINFO_VEC_STMTS (stmt_info).safe_push (new_stmt);
+ slp_node->push_vec_def (new_stmt);
}
break;
@@ -6102,10 +6073,7 @@ vectorizable_conversion (vec_info *vinfo,
else
new_stmt = SSA_NAME_DEF_STMT (vop0);
- if (1)
- slp_node->push_vec_def (new_stmt);
- else
- STMT_VINFO_VEC_STMTS (stmt_info).safe_push (new_stmt);
+ slp_node->push_vec_def (new_stmt);
}
break;
@@ -6148,16 +6116,11 @@ vectorizable_conversion (vec_info *vinfo,
/* This is the last step of the conversion sequence. Store the
vectors in SLP_NODE or in vector info of the scalar statement
(or in STMT_VINFO_RELATED_STMT chain). */
- if (1)
- slp_node->push_vec_def (new_stmt);
- else
- STMT_VINFO_VEC_STMTS (stmt_info).safe_push (new_stmt);
+ slp_node->push_vec_def (new_stmt);
}
}
break;
}
- if (0)
- *vec_stmt = STMT_VINFO_VEC_STMTS (stmt_info)[0];
vec_oprnds0.release ();
vec_oprnds1.release ();
--
2.43.0
