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from 3457370 syscall: mark rawClone as no_split_stack new 180b392 PR c++/77742 - -Waligned-new and placement new. * init.c (b [...] new 736a16b compiler, runtime: copy string code from Go 1.7

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Summary of changes: gcc/cp/ChangeLog | 7 + gcc/cp/cp-tree.h | 1 + gcc/cp/decl.c | 2 +- gcc/cp/init.c | 41 ++- gcc/go/gofrontend/MERGE | 2 +- gcc/go/gofrontend/escape.cc | 50 ++-- gcc/go/gofrontend/expressions.cc | 252 ++++++++++++++--- gcc/go/gofrontend/expressions.h | 88 +++++- gcc/go/gofrontend/runtime.cc | 36 +++ gcc/go/gofrontend/runtime.def | 39 ++- gcc/testsuite/g++.dg/cpp1z/aligned-new7.C | 15 + libgo/Makefile.am | 8 - libgo/Makefile.in | 92 +----- libgo/go/runtime/error.go | 6 +- libgo/go/runtime/rune.go | 219 +++++++++++++++ libgo/go/runtime/string.go | 446 ++++++++++++++++++++++++++++++ libgo/go/runtime/string_test.go | 4 +- libgo/go/runtime/stubs.go | 84 +----- libgo/runtime/go-byte-array-to-string.c | 24 -- libgo/runtime/go-int-array-to-string.c | 89 ------ libgo/runtime/go-int-to-string.c | 69 ----- libgo/runtime/go-rune.c | 97 ------- libgo/runtime/go-string-to-byte-array.c | 28 -- libgo/runtime/go-string-to-int-array.c | 56 ---- libgo/runtime/go-strplus.c | 30 -- libgo/runtime/malloc.h | 3 +- libgo/runtime/mgc0.c | 26 +- libgo/runtime/runtime.h | 8 +- libgo/runtime/string.goc | 123 -------- 29 files changed, 1146 insertions(+), 799 deletions(-) create mode 100644 gcc/testsuite/g++.dg/cpp1z/aligned-new7.C create mode 100644 libgo/go/runtime/rune.go create mode 100644 libgo/go/runtime/string.go delete mode 100644 libgo/runtime/go-byte-array-to-string.c delete mode 100644 libgo/runtime/go-int-array-to-string.c delete mode 100644 libgo/runtime/go-int-to-string.c delete mode 100644 libgo/runtime/go-rune.c delete mode 100644 libgo/runtime/go-string-to-byte-array.c delete mode 100644 libgo/runtime/go-string-to-int-array.c delete mode 100644 libgo/runtime/go-strplus.c delete mode 100644 libgo/runtime/string.goc