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authorVladimir N. Makarov <vmakarov@redhat.com>2021-10-26 14:03:42 -0400
committerVladimir N. Makarov <vmakarov@redhat.com>2021-10-26 15:17:29 -0400
commit8c59f4118357789cfa8df2cf0d3ecb61be7e9041 (patch)
treec88f788cc7906fb84cbb1da9308d5e12cae80857 /gcc/fortran/symbol.c
parentcfcb27cfcb1d32b8cf7bc463cc1fc5cacae8d199 (diff)
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[PR102842] Consider all outputs in generation of matching reloads
Without considering all output insn operands (not only processed before), in rare cases LRA can use the same hard register for different outputs of the insn on different assignment subpasses. The patch fixes the problem. gcc/ChangeLog: PR rtl-optimization/102842 * lra-constraints.c (match_reload): Ignore out in checking values of outs. (curr_insn_transform): Collect outputs before doing reloads of operands. gcc/testsuite/ChangeLog: PR rtl-optimization/102842 * g++.target/arm/pr102842.C: New test.
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