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r237813 - in /trunk/gcc: ChangeLog config/rs600...


Author: segher
Date: Tue Jun 28 05:56:41 2016
New Revision: 237813

URL: https://gcc.gnu.org/viewcvs?rev=237813&root=gcc&view=rev
Log:
rs6000: Fix split of ashdi3_extswsli_dot for memory (PR71670)

The splitter for ashdi3_extswsli_dot for cr0 with memory uses emit_insn
gen_ashdi3_extswsli_dot, which does not work because that emits a scratch,
while the splitter runs after reload so there should be a real register
instead.  We can laboriously fix that up, or emit using
gen_ashdi3_extswsli_dot2 instead.  This patch does the latter.


	PR target/71670
	* config/rs6000/rs6000.md (ashdi3_extswsli_dot): Use
	gen_ashdi3_extswsli_dot2 instead of gen_ashdi3_extswsli_dot.

gcc/testsuite/
	PR target/71670
	* gcc.target/powerpc/pr71670.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.target/powerpc/pr71670.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/rs6000/rs6000.md
    trunk/gcc/testsuite/ChangeLog


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