[Bug rtl-optimization/69447] [5 Regression] wrong code with -O2 -fno-schedule-insns and mixed 8/16/32/64bit arithmetics @ armv7a
rth at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Jan 28 18:12:00 GMT 2016
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69447
--- Comment #20 from Richard Henderson <rth at gcc dot gnu.org> ---
Author: rth
Date: Thu Jan 28 18:11:27 2016
New Revision: 232938
URL: https://gcc.gnu.org/viewcvs?rev=232938&root=gcc&view=rev
Log:
PR rtl-opt/69447
* lra-remat.c (subreg_regs): New.
(dump_candidates_and_remat_bb_data): Dump it.
(operand_to_remat): Reject if operand in subreg_regs.
(set_bb_regs): Collect subreg_regs.
(lra_remat): Init and free subreg_regs. Compute
calculate_local_reg_remat_bb_data before create_cands.
Added:
branches/gcc-5-branch/gcc/testsuite/gcc.c-torture/execute/pr69447.c
Modified:
branches/gcc-5-branch/gcc/ChangeLog
branches/gcc-5-branch/gcc/lra-remat.c
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