Turn off late-combine for a few risc-v specific tests

Just minor testsuite adjustments -- several of the shorten-memref tests are
slightly twiddled by the late-combine pass:

> Running /home/jlaw/test/gcc/gcc/testsuite/gcc.target/riscv/riscv.exp ...
> FAIL: gcc.target/riscv/shorten-memrefs-2.c   -Os   scan-assembler store1a:\n(\t?\\.[^\n]*\n)*\taddi
> XPASS: gcc.target/riscv/shorten-memrefs-3.c   -Os   scan-assembler-not load2a:\n.*addi[ \t]*[at][0-9],[at][0-9],[0-9]*
> FAIL: gcc.target/riscv/shorten-memrefs-5.c   -Os   scan-assembler store1a:\n(\t?\\.[^\n]*\n)*\taddi
> FAIL: gcc.target/riscv/shorten-memrefs-8.c   -Os   scan-assembler store:\n(\t?\\.[^\n]*\n)*\taddi\ta[0-7],a[0-7],1
This patch just turns off the late-combine pass for those tests.  Locally I'd
adjusted all the shorten-memref patches, but a quick re-rest shows that only 4
tests seem affected right now.

Anyway, pushing to the trunk to slightly clean up our test results.

gcc/testsuite
	* gcc.target/riscv/shorten-memrefs-2.c: Turn off late-combine.
	* gcc.target/riscv/shorten-memrefs-3.c: Likewise.
	* gcc.target/riscv/shorten-memrefs-5.c: Likewise.
	* gcc.target/riscv/shorten-memrefs-8.c: Likewise.

0 files changed, 0 insertions, 0 deletions