[testsuite] Skip loop tests on Visium

[Eric Botcazou]

They either use too much space in the data segment or on the stack.

Tested on visium-elf, applied on the mainline.


2018-01-16  Eric Botcazou  <ebotcazou@adacore.com>

	* gcc.dg/tree-ssa/ldist-27.c: Skip on Visium.
	* gcc.dg/tree-ssa/loop-interchange-1.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-1b.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-2.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-3.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-4.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-5.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-6.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-7.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-8.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-9.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-10.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-11.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-14.c: Likewise.
	* gcc.dg/tree-ssa/loop-interchange-15.c: Likewise.

-- 
Eric Botcazou
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