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Aurelien Jarno a1b01d3403 [ARM] Fix PR target/59833 
For Aurelien Jarno <aurelien@aurel32.net>

On ARM soft-float, the float to double conversion doesn't convert a sNaN
to qNaN as the IEEE Std 754 standard mandates:

"Under default exception handling, any operation signaling an invalid
operation exception and for which a floating-point result is to be
delivered shall deliver a quiet NaN."

Given the soft float ARM code ignores exceptions and always provides a
result, a float to double conversion of a signaling NaN should return a
quiet NaN. Fix this in extendsfdf2.

gcc/ChangeLog:

	PR target/59833
	* config/arm/ieee754-df.S (extendsfdf2): Convert sNaN to qNaN.

gcc/testsuite/ChangeLog:

	* gcc.dg/pr59833.c: New testcase.

From-SVN: r238584
2016-07-21 08:27:47 +00:00
..
config [ARM] Fix PR target/59833 2016-07-21 08:27:47 +00:00
soft-fp Update soft-fp from glibc. 2015-09-28 22:50:22 +01:00
ChangeLog [ARM] Fix PR target/59833 2016-07-21 08:27:47 +00:00
config.host config.host (m32r): Add m32r/t-m32r to tmake_file. 2016-07-19 16:07:40 +00:00
config.in Support PIE on Solaris 2015-09-24 09:00:22 +00:00
configure config.guess: Remove SH5 support. 2016-04-30 09:11:03 +00:00
configure.ac re PR target/70381 (On powerpc, -mfloat128 is on by default for all VSX systems) 2016-04-11 19:45:35 +00:00
crtstuff.c Update copyright years. 2016-01-04 15:30:50 +01:00
dfp-bit.c Update copyright years. 2016-01-04 15:30:50 +01:00
dfp-bit.h Update copyright years. 2016-01-04 15:30:50 +01:00
divmod.c Update copyright years. 2016-01-04 15:30:50 +01:00
empty.mk
emutls.c Update copyright years. 2016-01-04 15:30:50 +01:00
enable-execute-stack-empty.c enable-execute-stack-empty.c (__enable_execute_stack): Add prototype. 2011-06-22 13:20:07 +02:00
enable-execute-stack-mprotect.c Update copyright years. 2016-01-04 15:30:50 +01:00
find-symver.awk Update copyright years. 2016-01-04 15:30:50 +01:00
fixed-bit.c Update copyright years. 2016-01-04 15:30:50 +01:00
fixed-bit.h Update copyright years. 2016-01-04 15:30:50 +01:00
fixed-obj.mk Makefile.in (fixed-funcs,fixed-conv-funcs): filter-out LIB2FUNCS_EXCLUDE before adding them to libgcc-objects, libgcc-s-objects. 2012-08-23 15:41:03 +00:00
floatunsidf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsisf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsitf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
floatunsixf.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
fp-bit.c Update copyright years. 2016-01-04 15:30:50 +01:00
fp-bit.h Update copyright years. 2016-01-04 15:30:50 +01:00
gbl-ctors.h Update copyright years. 2016-01-04 15:30:50 +01:00
gen-fixed.sh
generic-morestack-thread.c Update copyright years. 2016-01-04 15:30:50 +01:00
generic-morestack.c S/390: Add -fsplit-stack support 2016-02-15 10:20:18 +00:00
generic-morestack.h Update copyright years. 2016-01-04 15:30:50 +01:00
gstdint.h
gthr-posix.h Update copyright years. 2016-01-04 15:30:50 +01:00
gthr-single.h Update copyright years. 2016-01-04 15:30:50 +01:00
gthr.h Update copyright years. 2016-01-04 15:30:50 +01:00
libgcc2.c remove unused CTOR_LISTS_DEFINED_EXTERNALLY macro 2016-07-06 23:55:52 +00:00
libgcc2.h Update copyright years. 2016-01-04 15:30:50 +01:00
libgcc-std.ver.in Update copyright years. 2016-01-04 15:30:50 +01:00
libgcov-driver-system.c re PR bootstrap/71400 (profiledbootstrap failed) 2016-06-06 15:24:24 +00:00
libgcov-driver.c On behalf of Aaron Conole <aconole@redhat.com> 2016-06-02 12:22:01 +00:00
libgcov-interface.c Update copyright years. 2016-01-04 15:30:50 +01:00
libgcov-merge.c Update copyright years. 2016-01-04 15:30:50 +01:00
libgcov-profiler.c Update copyright years. 2016-01-04 15:30:50 +01:00
libgcov-util.c Update copyright years. 2016-01-04 15:30:50 +01:00
libgcov.h Update copyright years. 2016-01-04 15:30:50 +01:00
Makefile.in re PR driver/68463 (Offloading fails when some objects are compiled with LTO and some without) 2016-02-25 12:23:52 +00:00
memcmp.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memcpy.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memmove.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
memset.c Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
mkheader.sh Update copyright years. 2016-01-04 15:30:50 +01:00
mkmap-flat.awk Update copyright years. 2016-01-04 15:30:50 +01:00
mkmap-symver.awk Update copyright years. 2016-01-04 15:30:50 +01:00
offloadstuff.c re PR driver/68463 (Offloading fails when some objects are compiled with LTO and some without) 2016-02-25 12:23:52 +00:00
shared-object.mk Add the nvptx port. 2014-11-10 16:12:42 +00:00
siditi-object.mk Move libgcc2 to toplevel libgcc 2011-11-02 15:23:48 +00:00
static-object.mk Add the nvptx port. 2014-11-10 16:12:42 +00:00
sync.c Update copyright years. 2016-01-04 15:30:50 +01:00
udivmod.c Update copyright years. 2016-01-04 15:30:50 +01:00
udivmodsi4.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-arm-common.inc Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-c.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-compat.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-compat.h Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2-fde-compat.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2-fde-dip.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2-fde.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2-fde.h Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-dw2.h Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-generic.h Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-pe.h Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-seh.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind-sjlj.c Update copyright years. 2016-01-04 15:30:50 +01:00
unwind.inc Update copyright years. 2016-01-04 15:30:50 +01:00
vtv_end_preinit.c Update copyright years. 2016-01-04 15:30:50 +01:00
vtv_end.c Update copyright years. 2016-01-04 15:30:50 +01:00
vtv_start_preinit.c Update copyright years. 2016-01-04 15:30:50 +01:00
vtv_start.c Update copyright years. 2016-01-04 15:30:50 +01:00