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from 2b9c09a78b0 libstdc++: Fix tests that fail with old std::string ABI new 06bec55e80d i386: Improve chaining of _{addcarry,subborrow}_u{32,64} [PR97387]
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Summary of changes: gcc/config/i386/i386.c | 68 +++++++++++++++++++++++++------ gcc/config/i386/i386.md | 14 +++++++ gcc/testsuite/gcc.target/i386/pr97387-1.c | 31 ++++++++++++++ gcc/testsuite/gcc.target/i386/pr97387-2.c | 31 ++++++++++++++ 4 files changed, 132 insertions(+), 12 deletions(-) create mode 100644 gcc/testsuite/gcc.target/i386/pr97387-1.c create mode 100644 gcc/testsuite/gcc.target/i386/pr97387-2.c