Module Name: src
Committed By: jdc
Date: Sat Nov 24 19:02:14 UTC 2012
Modified Files:
src/doc [netbsd-6-0]: HACKS
src/lib/libc/softfloat [netbsd-6-0]: Makefile.inc
Log Message:
Pull up revisions:
src/lib/libc/softfloat/Makefile.inc 1.11-1.12 via patch
src/doc/HACKS 1.124 via patch
(requested by msaitoh in ticket #703).
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.
To generate a diff of this commit:
cvs rdiff -u -r1.122.2.1 -r1.122.2.1.4.1 src/doc/HACKS
cvs rdiff -u -r1.10 -r1.10.10.1 src/lib/libc/softfloat/Makefile.inc
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/doc/HACKS
diff -u src/doc/HACKS:1.122.2.1 src/doc/HACKS:1.122.2.1.4.1
--- src/doc/HACKS:1.122.2.1 Mon Mar 5 20:59:25 2012
+++ src/doc/HACKS Sat Nov 24 19:02:14 2012
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.122.2.1 2012/03/05 20:59:25 sborrill Exp $
+# $NetBSD: HACKS,v 1.122.2.1.4.1 2012/11/24 19:02:14 jdc Exp $
#
# This file is intended to document workarounds for currently unsolved
# (mostly) compiler bugs.
@@ -554,6 +554,24 @@ port arm
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48863#c4
kcah
+ hack gcc-4.5 arm without -fno-tree-vrp generate broken code
+ cdate Wed Nov 14 13:02:02 JST 2012
+ who msaitoh
+ file lib/libc/softfloat/Makefile.inc
+ pr 46953
+ regress src/tests/lib/libm/t_cbrt
+ regress src/tests/lib/libm/t_ceil
+ regress src/tests/lib/libm/t_exp
+ regress src/tests/lib/libm/t_log
+ regress src/tests/lib/libm/t_scalbn
+ regress src/tests/lib/libm/t_sinh
+ regress src/tests/lib/libm/t_sqrt
+ descr Gcc has a bug in tree optimization. For adddf3,
+ -INF + -INF returns 0 without -fno-tree-vrp.
+ Debugging with -fdump-tree-all shows that
+ softfloat.c.021t.cleanup_cfg is ok but softfloat.c.023t.ssa
+ is broken.
+ kcah
port sh3
Index: src/lib/libc/softfloat/Makefile.inc
diff -u src/lib/libc/softfloat/Makefile.inc:1.10 src/lib/libc/softfloat/Makefile.inc:1.10.10.1
--- src/lib/libc/softfloat/Makefile.inc:1.10 Mon Jul 4 02:53:15 2011
+++ src/lib/libc/softfloat/Makefile.inc Sat Nov 24 19:02:14 2012
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.inc,v 1.10 2011/07/04 02:53:15 mrg Exp $
+# $NetBSD: Makefile.inc,v 1.10.10.1 2012/11/24 19:02:14 jdc Exp $
SOFTFLOAT_BITS?=64
.PATH: ${ARCHDIR}/softfloat \
@@ -20,9 +20,12 @@ SRCS.softfloat+=eqsf2.c nesf2.c gtsf2.c
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
