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backport: re PR rtl-optimization/85645 (ICE in maybe_record_trace_start, at dwarf2cfi...
authorSegher Boessenkool <segher@kernel.crashing.org>
Mon, 13 Aug 2018 17:05:48 +0000 (19:05 +0200)
committerSegher Boessenkool <segher@gcc.gnu.org>
Mon, 13 Aug 2018 17:05:48 +0000 (19:05 +0200)
commit228bce5e2915d39eee7fec7f36298a4efdbb2e28
treed93d5ec5108c1b18a62719e23bc2ac020f40232ftree
parentf7f4276997134dd58a15e16034e619dbc423457dcommit | diff
backport: re PR rtl-optimization/85645 (ICE in maybe_record_trace_start, at dwarf2cfi.c:2348)

Backport from mainline
2018-05-09  Segher Boessenkool  <segher@kernel.crashing.org>

PR rtl-optimization/85645
* regrename.c (build_def_use): Also kill the chains that include the
destination of a REG_CFA_REGISTER note.

PR rtl-optimization/85645
*  regcprop.c (copyprop_hardreg_forward_1): Don't propagate into an
insn that has a REG_CFA_REGISTER note.

From-SVN: r263509
gcc/ChangeLog diff | blob | blame | history
gcc/regcprop.c diff | blob | blame | history
gcc/regrename.c diff | blob | blame | history
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