From ded9b61cc3a43a97c7ae17e1cdabbac977ee45e7 Mon Sep 17 00:00:00 2001 From: Christoph Mallon Date: Wed, 12 Nov 2008 22:01:28 +0000 Subject: [PATCH] One less sign extension in an obscure case. [r23608] --- ir/be/ia32/ia32_transform.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/ir/be/ia32/ia32_transform.c b/ir/be/ia32/ia32_transform.c index a029157d1..7326b16e6 100644 --- a/ir/be/ia32/ia32_transform.c +++ b/ir/be/ia32/ia32_transform.c @@ -3132,8 +3132,10 @@ static ir_node *gen_x87_gp_to_fp(ir_node *node, ir_mode *src_mode) /* first convert to 32 bit signed if necessary */ if (get_mode_size_bits(src_mode) < 32) { - new_op = create_Conv_I2I(dbgi, block, noreg, noreg, nomem, new_op, src_mode); - SET_IA32_ORIG_NODE(new_op, node); + if (!upper_bits_clean(new_op, src_mode)) { + new_op = create_Conv_I2I(dbgi, block, noreg, noreg, nomem, new_op, src_mode); + SET_IA32_ORIG_NODE(new_op, node); + } mode = mode_Is; } -- 2.20.1