[PATCH] D75095: [MC][ARM] Don't create multiple .ARM.exidx associated to one .text

[Maxim Kuvyrkov via Phabricator via llvm-commits]

maxim-kuvyrkov added a comment.
Herald added a subscriber: danielkiss.

Hi @MaskRay ,

Quite surprisingly, this patch increases code size by 3-4% on several SPEC CPU2006 benchmarks for arm-linux-gnueabihf at -Oz optimization level:

1. 473.astar,astar_base.default                                  regressed by 103
2. 450.soplex,soplex_base.default                                regressed by 103
3. 483.xalancbmk,Xalan_base.default                              regressed by 104

With -Os I see 2-3% code size increase for same benchmarks:

1. 473.astar,astar_base.default                                  regressed by 102
2. 450.soplex,soplex_base.default                                regressed by 102
3. 483.xalancbmk,Xalan_base.default                              regressed by 103

Would you please check if the code size increase expected for this patch?

Let me know if you need help reproducing the issue.  Thanks!


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