[Bug middle-end/54146] Very slow compile with attribute((flatten))

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54146

--- Comment #59 from Steven Bosscher <steven at gcc dot gnu.org> 2012-09-02 22:54:34 UTC ---
FWIW Martin: SRA blows up this test case's register pressure. Compiling with
SRA enabled takes ~900s, but with -fno-tree-sra compile time almost halves.
There are extremely long live ranges for SA.* variables created by SRA.