re PR tree-optimization/72824 (Signed floating point zero semantics broken at…
re PR tree-optimization/72824 (Signed floating point zero semantics broken at optimization level -O3 (tree-loop-distribute-patterns)) PR tree-optimization/72824 * tree-loop-distribution.c (const_with_all_bytes_same): Verify real_zerop is not negative. * gcc.c-torture/execute/ieee/pr72824.c: New test. From-SVN: r239275
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