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from 9324fa0 PR target/66217 * config/rs6000/rs6000-protos.h (rs6000_emi [...] new f22255e [PR64164] Drop copyrename, use coalescible partition as base [...]

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Summary of changes: gcc/ChangeLog | 95 ++++++ gcc/Makefile.in | 1 - gcc/alias.c | 13 + gcc/cfgexpand.c | 370 +++++++++++++++------ gcc/cfgexpand.h | 2 + gcc/common.opt | 12 +- gcc/doc/invoke.texi | 48 +-- gcc/emit-rtl.c | 5 +- gcc/explow.c | 29 ++ gcc/explow.h | 3 + gcc/expr.c | 39 ++- gcc/function.c | 275 +++++++++++++--- gcc/gimple-expr.c | 39 --- gcc/gimple-expr.h | 1 - gcc/opts.c | 2 +- gcc/passes.def | 5 - gcc/stor-layout.c | 3 +- gcc/testsuite/ChangeLog | 8 + gcc/testsuite/gcc.dg/guality/pr54200.c | 2 +- gcc/testsuite/gcc.dg/ssp-1.c | 2 +- gcc/testsuite/gcc.dg/ssp-2.c | 2 +- gcc/testsuite/gcc.dg/torture/parm-coalesce.c | 40 +++ gcc/tree-outof-ssa.c | 16 +- gcc/tree-ssa-coalesce.c | 378 ++++++++++++++++++++- gcc/tree-ssa-coalesce.h | 1 + gcc/tree-ssa-copyrename.c | 475 --------------------------- gcc/tree-ssa-live.c | 99 +----- gcc/tree-ssa-live.h | 4 +- gcc/tree-ssa-uncprop.c | 5 + gcc/var-tracking.c | 12 +- 30 files changed, 1133 insertions(+), 853 deletions(-) create mode 100644 gcc/testsuite/gcc.dg/torture/parm-coalesce.c delete mode 100644 gcc/tree-ssa-copyrename.c