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[PATCH] Avoid going to GENERIC for TER expansion
- From: Richard Biener <rguenther at suse dot de>
- To: gcc-patches at gcc dot gnu dot org
- Date: Wed, 23 Apr 2014 16:41:55 +0200 (CEST)
- Subject: [PATCH] Avoid going to GENERIC for TER expansion
- Authentication-results: sourceware.org; auth=none
$subject - we have the sepops interface for this.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2014-04-23 Richard Biener <rguenther@suse.de>
* expr.c (expand_expr_real_1): Avoid gimple_assign_rhs_to_tree
during TER and instead use the sepops interface for expanding
non-GIMPLE_SINGLE_RHS.
Index: gcc/expr.c
===================================================================
*** gcc/expr.c (revision 209559)
--- gcc/expr.c (working copy)
*************** expand_expr_real_1 (tree exp, rtx target
*** 9395,9406 ****
if (g)
{
rtx r;
! location_t saved_loc = curr_insn_location ();
!
! set_curr_insn_location (gimple_location (g));
! r = expand_expr_real (gimple_assign_rhs_to_tree (g), target,
! tmode, modifier, NULL, inner_reference_p);
! set_curr_insn_location (saved_loc);
if (REG_P (r) && !REG_EXPR (r))
set_reg_attrs_for_decl_rtl (SSA_NAME_VAR (exp), r);
return r;
--- 9395,9427 ----
if (g)
{
rtx r;
! ops.code = gimple_assign_rhs_code (g);
! switch (get_gimple_rhs_class (ops.code))
! {
! case GIMPLE_TERNARY_RHS:
! ops.op2 = gimple_assign_rhs3 (g);
! /* Fallthru */
! case GIMPLE_BINARY_RHS:
! ops.op1 = gimple_assign_rhs2 (g);
! /* Fallthru */
! case GIMPLE_UNARY_RHS:
! ops.op0 = gimple_assign_rhs1 (g);
! ops.type = TREE_TYPE (gimple_assign_lhs (g));
! ops.location = gimple_location (g);
! r = expand_expr_real_2 (&ops, target, tmode, modifier);
! break;
! case GIMPLE_SINGLE_RHS:
! {
! location_t saved_loc = curr_insn_location ();
! set_curr_insn_location (gimple_location (g));
! r = expand_expr_real (gimple_assign_rhs1 (g), target,
! tmode, modifier, NULL, inner_reference_p);
! set_curr_insn_location (saved_loc);
! break;
! }
! default:
! gcc_unreachable ();
! }
if (REG_P (r) && !REG_EXPR (r))
set_reg_attrs_for_decl_rtl (SSA_NAME_VAR (exp), r);
return r;