diff options
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 34 |
1 files changed, 34 insertions, 0 deletions
@@ -5829,6 +5829,8 @@ safe_from_p (rtx x, tree exp, int top_p) } break; + case MISALIGNED_INDIRECT_REF: + case ALIGN_INDIRECT_REF: case INDIRECT_REF: if (MEM_P (x) && alias_sets_conflict_p (MEM_ALIAS_SET (x), @@ -6745,11 +6747,17 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, return target; } + case MISALIGNED_INDIRECT_REF: + case ALIGN_INDIRECT_REF: case INDIRECT_REF: { tree exp1 = TREE_OPERAND (exp, 0); tree orig; + if (code == MISALIGNED_INDIRECT_REF + && !targetm.vectorize.misaligned_mem_ok (mode)) + abort (); + if (modifier != EXPAND_WRITE) { tree t; @@ -6761,6 +6769,14 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, op0 = expand_expr (exp1, NULL_RTX, VOIDmode, EXPAND_SUM); op0 = memory_address (mode, op0); + + if (code == ALIGN_INDIRECT_REF) + { + int align = TYPE_ALIGN_UNIT (type); + op0 = gen_rtx_AND (Pmode, op0, GEN_INT (-align)); + op0 = memory_address (mode, op0); + } + temp = gen_rtx_MEM (mode, op0); orig = REF_ORIGINAL (exp); @@ -8203,6 +8219,24 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, return expand_expr_real (TREE_OPERAND (exp, 0), original_target, tmode, modifier, alt_rtl); + case REALIGN_LOAD_EXPR: + { + tree oprnd0 = TREE_OPERAND (exp, 0); + tree oprnd1 = TREE_OPERAND (exp, 1); + tree oprnd2 = TREE_OPERAND (exp, 2); + rtx op2; + + this_optab = optab_for_tree_code (code, type); + expand_operands (oprnd0, oprnd1, NULL_RTX, &op0, &op1, 0); + op2 = expand_expr (oprnd2, NULL_RTX, VOIDmode, 0); + temp = expand_ternary_op (mode, this_optab, op0, op1, op2, + target, unsignedp); + if (temp == 0) + abort (); + return temp; + } + + default: return lang_hooks.expand_expr (exp, original_target, tmode, modifier, alt_rtl); |