[COMMITTED][PATCH] Improve prepare_shrink_wrap to sink more instructions

[Jiong Wang]

On 22/09/14 19:01, Jeff Law wrote:

On 09/22/14 04:29, Jiong Wang wrote:

On 19/09/14 21:43, Jeff Law wrote:

patch attached.

please review, thanks.

gcc/
    * shrink-wrap.c (move_insn_for_shrink_wrap): Add further check when
!REG_P (src) to
    release more instruction sink opportunities.

gcc/testsuite/
    * gcc.target/aarch64/shrink_wrap_symbol_ref_1.c: New testcase.

Thanks.  Please verify this version passes a bootstrap & regression
test.  Assuming it does it is OK for the trunk.

pass bootstrap and on regression on x86 based on revision 215515.

committed as revision 215563.

-- Jiong

jeff