ALHP/ALHP.GO
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correcting model cost for vectorization of loops marked with the OpenMP simd directive

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gcc's behaivor is again not following the documentation, which lets assume that it would use dynamic by default. By default gcc 12 uses here unlimited which does not do any estimation how costly it is vs the benefit.

Docs:
Alter the cost model used for vectorization of loops marked with the OpenMP simd directive. The model argument should be one of ‘unlimited’, ‘dynamic’, ‘cheap’. All values of model have the same meaning as described in -fvect-cost-model and by default a cost model defined with -fvect-cost-model is used.
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RubenKelevra
2022-05-14 01:58:39 +02:00
parent 9abe7a0c48
commit 82f35b871a
1 changed files with 1 additions and 1 deletions
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2
utils.go
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@@ -727,7 +727,7 @@ func setupMakepkg(march string) error {
}
makepkgStr = strings.ReplaceAll(makepkgStr, " color ", " !color ")
// Add align-functions=32, see https://github.com/InBetweenNames/gentooLTO/issues/164 for more
makepkgStr = strings.ReplaceAll(makepkgStr, "-O2", "-O3 -falign-functions=32 -mpclmul -fdevirtualize-at-ltrans -fgcse-sm -fgcse-las -flive-range-shrinkage -fira-loop-pressure -fsched-pressure -fmodulo-sched -fmodulo-sched-allow-regmoves -freschedule-modulo-scheduled-loops -fdelete-dead-exceptions -fgraphite -fgraphite-identity -fsplit-stack -fipa-pta -fisolate-erroneous-paths-attribute -fira-region=mixed")
makepkgStr = strings.ReplaceAll(makepkgStr, "-O2", "-O3 -falign-functions=32 -mpclmul -fdevirtualize-at-ltrans -fgcse-sm -fgcse-las -flive-range-shrinkage -fira-loop-pressure -fsched-pressure -fmodulo-sched -fmodulo-sched-allow-regmoves -freschedule-modulo-scheduled-loops -fdelete-dead-exceptions -fgraphite -fgraphite-identity -fsplit-stack -fipa-pta -fisolate-erroneous-paths-attribute -fira-region=mixed -fsimd-cost-model=dynamic")
makepkgStr = strings.ReplaceAll(makepkgStr, "#MAKEFLAGS=\"-j2\"", "MAKEFLAGS=\"-j"+strconv.Itoa(conf.Build.Makej)+"\"")
makepkgStr = reMarch.ReplaceAllString(makepkgStr, "${1}"+march)
makepkgStr = strings.ReplaceAll(makepkgStr, "#PACKAGER=\"John Doe <john@doe.com>\"", "PACKAGER=\"ALHP "+march+" <alhp@harting.dev>\"")