From f027318741f078586eaed6e89caa867df74b0ee2 Mon Sep 17 00:00:00 2001 From: amylaar Date: Mon, 31 Oct 2005 13:30:14 +0000 Subject: [PATCH] 2005-10-31 J"orn Rennecke * optabs.c (expand_unop): Take TRULY_NOOP_TRUNCATION into account. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@106271 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 4 ++++ gcc/optabs.c | 4 +++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6e274da..cd55c36 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +2005-10-31 J"orn Rennecke + + * optabs.c (expand_unop): Take TRULY_NOOP_TRUNCATION into account. + 2005-10-31 Andrew Pinski PR middle-end/23492 diff --git a/gcc/optabs.c b/gcc/optabs.c index c043bb0..d3e1db6 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -2434,7 +2434,9 @@ expand_unop (enum machine_mode mode, optab unoptab, rtx op0, rtx target, if (temp) { - if (class != MODE_INT) + if (class != MODE_INT + || !TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode), + GET_MODE_BITSIZE (wider_mode))) { if (target == 0) target = gen_reg_rtx (mode); -- 2.7.4