lukel97 wrote:
I collected the stats on the number of memcmps that were inlined, it looks like
we're able to expand a good chunk of them:
```
Program expand-memcmp.NumMemCmpCalls
expand-memcmp.NumMemCmpInlined
lhs rhs
diff lhs rhs diff
FP2017rate/510.parest_r/510.parest_r 410.00
468.00 14.1% 104.00 inf%
INT2017speed/602.gcc_s/602.gcc_s 83.00
92.00 10.8% 36.00 inf%
INT2017rate/502.gcc_r/502.gcc_r 83.00
92.00 10.8% 36.00 inf%
INT2017spe...00.perlbench_s/600.perlbench_s 207.00
220.00 6.3% 120.00 inf%
INT2017rat...00.perlbench_r/500.perlbench_r 207.00
220.00 6.3% 120.00 inf%
INT2017spe...ed/620.omnetpp_s/620.omnetpp_s 304.00
306.00 0.7% 13.00 inf%
INT2017rate/520.omnetpp_r/520.omnetpp_r 304.00
306.00 0.7% 13.00 inf%
FP2017rate/508.namd_r/508.namd_r 13.00
13.00 0.0% 13.00 inf%
INT2017rate/541.leela_r/541.leela_r 40.00
40.00 0.0% 3.00 inf%
INT2017speed/641.leela_s/641.leela_s 40.00
40.00 0.0% 3.00 inf%
INT2017speed/625.x264_s/625.x264_s 8.00
8.00 0.0% 6.00 inf%
INT2017spe...23.xalancbmk_s/623.xalancbmk_s 8.00
8.00 0.0% 6.00 inf%
INT2017rate/557.xz_r/557.xz_r 6.00
6.00 0.0% 4.00 inf%
INT2017rat...23.xalancbmk_r/523.xalancbmk_r 8.00
8.00 0.0% 6.00 inf%
INT2017rate/525.x264_r/525.x264_r 8.00
8.00 0.0% 6.00 inf%
FP2017speed/644.nab_s/644.nab_s 77.00
77.00 0.0% 71.00 inf%
FP2017speed/638.imagick_s/638.imagick_s 3.00
3.00 0.0%
FP2017rate/544.nab_r/544.nab_r 77.00
77.00 0.0% 71.00 inf%
FP2017rate/538.imagick_r/538.imagick_r 3.00
3.00 0.0%
FP2017rate/526.blender_r/526.blender_r 41.00
41.00 0.0% 27.00 inf%
FP2017rate/511.povray_r/511.povray_r 5.00
5.00 0.0% 5.00 inf%
INT2017speed/657.xz_s/657.xz_s 6.00
6.00 0.0% 4.00 inf%
```
There's a small difference in the number of original memcmp calls, there's some
merge commits in this branch which might have changed the codegen slightly in
the meantime.
I'm working on getting some runtime numbers now, sorry for the delay
https://github.com/llvm/llvm-project/pull/107548
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