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| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2004-11-30 00:01:45 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 2004-11-29 19:01:45 -0500 |
| commit | 7acda5525160854c90dc9661f31b6684991b9721 (patch) | |
| tree | dfbf6f2ea293600c13665faeb6960583e8f04567 /gcc/expr.c | |
| parent | 0d0a0935545f258cd934235e5fc4dba4a21f242b (diff) | |
| download | gcc-7acda5525160854c90dc9661f31b6684991b9721.zip gcc-7acda5525160854c90dc9661f31b6684991b9721.tar.gz gcc-7acda5525160854c90dc9661f31b6684991b9721.tar.bz2 | |
expr.c (expand_expr_real_1, [...]): Properly handle REDUCE_BIT_FIELD by applying it to result, not input, of conversion.
* expr.c (expand_expr_real_1, case NOP_EXPR): Properly handle
REDUCE_BIT_FIELD by applying it to result, not input, of conversion.
From-SVN: r91498
Diffstat (limited to 'gcc/expr.c')
| -rw-r--r-- | gcc/expr.c | 37 |
1 files changed, 20 insertions, 17 deletions
@@ -7241,36 +7241,39 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, } op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, modifier); - op0 = REDUCE_BIT_FIELD (op0); if (GET_MODE (op0) == mode) - return op0; + ; /* If OP0 is a constant, just convert it into the proper mode. */ - if (CONSTANT_P (op0)) + else if (CONSTANT_P (op0)) { tree inner_type = TREE_TYPE (TREE_OPERAND (exp, 0)); enum machine_mode inner_mode = TYPE_MODE (inner_type); if (modifier == EXPAND_INITIALIZER) - return simplify_gen_subreg (mode, op0, inner_mode, - subreg_lowpart_offset (mode, - inner_mode)); + op0 = simplify_gen_subreg (mode, op0, inner_mode, + subreg_lowpart_offset (mode, + inner_mode)); else - return convert_modes (mode, inner_mode, op0, - TYPE_UNSIGNED (inner_type)); + op0= convert_modes (mode, inner_mode, op0, + TYPE_UNSIGNED (inner_type)); } - if (modifier == EXPAND_INITIALIZER) - return gen_rtx_fmt_e (unsignedp ? ZERO_EXTEND : SIGN_EXTEND, mode, op0); + else if (modifier == EXPAND_INITIALIZER) + op0 = gen_rtx_fmt_e (unsignedp ? ZERO_EXTEND : SIGN_EXTEND, mode, op0); - if (target == 0) - return - convert_to_mode (mode, op0, - TYPE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0)))); + else if (target == 0) + op0 = convert_to_mode (mode, op0, + TYPE_UNSIGNED (TREE_TYPE + (TREE_OPERAND (exp, 0)))); else - convert_move (target, op0, - TYPE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0)))); - return target; + { + convert_move (target, op0, + TYPE_UNSIGNED (TREE_TYPE (TREE_OPERAND (exp, 0)))); + op0 = target; + } + + return REDUCE_BIT_FIELD (op0); case VIEW_CONVERT_EXPR: op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, modifier); |