Backport from mainline

	Backport from mainline
	2013-10-22  Uros Bizjak  <ubizjak@gmail.com>

	PR target/58779
	* config/i386/i386.c (put_condition_code) <case GTU, case LEU>:
	Remove CCCmode handling.
	<case LTU>: Return 'c' suffix for CCCmode.
	<case GEU>: Return 'nc' suffix for CCCmode.
	(ix86_cc_mode) <case GTU, case LEU>: Do not generate overflow checks.
	* config/i386/i386.md (*sub<mode>3_cconly_overflow): Remove.
	(*sub<mode>3_cc_overflow): Ditto.
	(*subsi3_zext_cc_overflow): Ditto.

	Backport from mainline
	2013-10-19  Uros Bizjak  <ubizjak@gmail.com>

	PR target/58792
	* config/i386/i386.c (ix86_function_value_regno): Add DX_REG,
	ST1_REG and XMM1_REG for 32bit and 64bit targets.  Also add DI_REG
	and SI_REG for 64bit SYSV ABI targets.

testsuite/ChangeLog:

	Backport from mainline
	2013-10-22  Uros Bizjak  <ubizjak@gmail.com>

	PR target/58779
	* gcc.target/i386/pr30315.c: Remove MINUSCC, DECCC, MINUSCCONLY
	and MINUSCCZEXT defines. Update scan-assembler dg directive.
	* gcc.dg/torture/pr58779.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_7-branch@204088 138bc75d-0d04-0410-961f-82ee72b054a4