[gcc]
2015-03-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/65240
	* config/rs6000/predicates.md (easy_fp_constant): Remove special
	-ffast-math handling that kept non-0 constants live in the RTL
	until reload.  Remove logic testing the number of instructions it
	took to create a constant in a GPR that was never used, due to a
	test for soft-float earlier.
	(memory_fp_constant): Delete, no longer used.

	* config/rs6000/rs6000.md (mov<MODE>_hardfloat): Remove
	alternatives for loading non-0 constants into GPRs for hard
	floating point that is no longer needed due to changes in
	easy_fp_constant.  Add support for loading 0.0 into GPRs.
	(mov<mode>_hardfloat32): Likewise.
	(mov<mode>_hardfloat64): Likewise.
	(mov<mode>_64bit_dm): Likewise.
	(movtd_64bit_nodm): Likewise.
	(pre-reload move FP constant define_split): Delete define_split,
	since it is no longer used.
	(extenddftf2_internal): Remove GHF constraints that are not valid
	for extenddftf2.

[gcc/testsuite]
2015-03-19  Michael Meissner  <meissner@linux.vnet.ibm.com>

	PR target/65240
	* gcc/testsuite/g++.dg/pr65240.h: Add tests for PR 65240.
	* gcc/testsuite/g++.dg/pr65240-1.C: Likewise.
	* gcc/testsuite/g++.dg/pr65240-2.C: Likewise.
	* gcc/testsuite/g++.dg/pr65240-3.C: Likewise.
	* gcc/testsuite/g++.dg/pr65240-4.C: Likewise.

From-SVN: r221524