[src/trunk]: src/lib/libc/softfloat For arm, add -fno-tree-vrp to COPTS when ...

[msaitoh <msaitoh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/52547882662d
branches:  trunk
changeset: 782686:52547882662d
user:      msaitoh <msaitoh%NetBSD.org@localhost>
date:      Wed Nov 14 03:47:30 2012 +0000

description:
For arm, add -fno-tree-vrp to COPTS when compiling softfloat.c.
Without -fno-tree-vrp, -INF + -INF returns 0 by adddf3.
Fixes PR#46953.

diffstat:

 lib/libc/softfloat/Makefile.inc |  12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diffs (26 lines):

diff -r 77f00ec91536 -r 52547882662d lib/libc/softfloat/Makefile.inc
--- a/lib/libc/softfloat/Makefile.inc   Wed Nov 14 02:36:53 2012 +0000
+++ b/lib/libc/softfloat/Makefile.inc   Wed Nov 14 03:47:30 2012 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.inc,v 1.10 2011/07/04 02:53:15 mrg Exp $
+#      $NetBSD: Makefile.inc,v 1.11 2012/11/14 03:47:30 msaitoh Exp $
 
 SOFTFLOAT_BITS?=64
 .PATH:         ${ARCHDIR}/softfloat \
@@ -20,9 +20,13 @@
 SRCS+=         ${SRCS.softfloat}
 
 # XXX
-.if defined(HAVE_GCC) && ${HAVE_GCC} >= 45 && \
-    (${MACHINE_CPU} == "arm" || \
-     ${MACHINE_CPU} == "mips" || \
+.if defined(HAVE_GCC) && ${HAVE_GCC} >= 45
+.if (${MACHINE_CPU} == "arm")
+# See doc/HACKS for more information.
+COPTS.softfloat.c+=    -Wno-enum-compare -fno-tree-vrp
+.elif
+    (${MACHINE_CPU} == "mips" || \
      ${MACHINE_CPU} == "sh3")
 COPTS.softfloat.c+=    -Wno-enum-compare
 .endif
+.endif