From e392cde316bbbe5967d1572def874ce354fd06e0 Mon Sep 17 00:00:00 2001
From: amylaar <amylaar@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 13 Dec 2005 12:49:56 +0000
Subject: [PATCH] * rtlhooks.c (gen_lowpart_general): Handle SUBREGs of
floating point values.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108479 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/ChangeLog | 5 +++++
gcc/rtlhooks.c | 7 +++++--
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0a6bd70888f5..345f7d6bec75 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2005-12-13 J"orn Rennecke <joern.rennecke@st.com>
+
+ * rtlhooks.c (gen_lowpart_general): Handle SUBREGs of floating point
+ values.
+
2005-12-13 Nathan Sidwell <nathan@codesourcery.com>
* config/mt/t-mt (MULTILIB_OPTIONS): Add ms2
diff --git a/gcc/rtlhooks.c b/gcc/rtlhooks.c
index bc413987865f..0034da783fac 100644
--- a/gcc/rtlhooks.c
+++ b/gcc/rtlhooks.c
@@ -44,9 +44,12 @@ gen_lowpart_general (enum machine_mode mode, rtx x)
if (result)
return result;
- else if (REG_P (x))
+ /* If it's a REG, it must be a hard reg that's not valid in MODE. */
+ else if (REG_P (x)
+ /* Or we could have a subreg of a floating point value. */
+ || (GET_CODE (x) == SUBREG
+ && FLOAT_MODE_P (GET_MODE (SUBREG_REG (x)))))
{
- /* Must be a hard reg that's not valid in MODE. */
result = gen_lowpart_common (mode, copy_to_reg (x));
gcc_assert (result != 0);
return result;
--
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