Module Name: src
Committed By: msaitoh
Date: Wed Nov 14 04:13:44 UTC 2012
Modified Files:
src/doc: HACKS
Log Message:
Add note about lib/libc/softfloat/Makefile.inc hack for arm.
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.
To generate a diff of this commit:
cvs rdiff -u -r1.123 -r1.124 src/doc/HACKS
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:1.123 src/doc/HACKS:1.124
--- src/doc/HACKS:1.123 Sat Mar 3 03:21:16 2012
+++ src/doc/HACKS Wed Nov 14 04:13:44 2012
@@ -1,4 +1,4 @@
-# $NetBSD: HACKS,v 1.123 2012/03/03 03:21:16 nakayama Exp $
+# $NetBSD: HACKS,v 1.124 2012/11/14 04:13:44 msaitoh 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
