gcc instruction cost

[Kyrill Tkachov]

On 15/10/15 06:50, htio2 wrote:
> I can see all the fprintf in combine.c but I just dont know how to triggle
> the dump.

If you specify -fdump-rtl-combine on the command line gcc will create a dump file
with the information that combine dumps.

Usually I just dump all rtl passes with -da.

Kyrill

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