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linux-cachyos-rc: Add support for Distributed ThinLTO #436

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linux-cachyos-rc: Add support for Distributed ThinLTO #436

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6 changes: 4 additions & 2 deletions linux-cachyos-rc/PKGBUILD
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Original file line number Diff line number Diff line change
Expand Up @@ -85,8 +85,9 @@
# ATTENTION - one of three predefined values should be selected!
# "full: uses 1 thread for Linking, slow and uses more memory, theoretically with the highest performance gains."
# "thin: uses multiple threads, faster and uses less memory, may have a lower runtime performance than Full."
# "thin-dist: Similar to thin, but uses a distributed model rather than in-process"
# "none: disable LTO
: "${_use_llvm_lto:=thin}"
: "${_use_llvm_lto:=thin-dist}"

# Use suffix -lto only when requested by the user
# yes - enable -lto suffix
Expand Down Expand Up @@ -150,7 +151,7 @@

# ATTENTION: Do not modify after this line
_is_lto_kernel() {
[[ "$_use_llvm_lto" = "thin" || "$_use_llvm_lto" = "full" ]]
[[ "$_use_llvm_lto" = "thin" || "$_use_llvm_lto" = "full" || "$_use_llvm_lto" = "thin-dist" ]]
return $?
}

Expand Down Expand Up @@ -341,6 +342,7 @@ prepare() {
### Select LLVM level
case "$_use_llvm_lto" in
thin) scripts/config -e LTO_CLANG_THIN;;
thin-dist) scripts/config -e LTO_CLANG_THIN_DIST;;
full) scripts/config -e LTO_CLANG_FULL;;
none) scripts/config -e LTO_NONE;;
*) _die "The value '$_use_llvm_lto' is invalid. Choose the correct one again.";;
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1 change: 1 addition & 0 deletions linux-cachyos/config
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Expand Up @@ -971,6 +971,7 @@ CONFIG_HAS_LTO_CLANG=y
CONFIG_LTO_NONE=y
# CONFIG_LTO_CLANG_FULL is not set
# CONFIG_LTO_CLANG_THIN is not set
# CONFIG_LTO_CLANG_THIN_DIST is not set
CONFIG_ARCH_SUPPORTS_AUTOFDO_CLANG=y
# CONFIG_AUTOFDO_CLANG is not set
CONFIG_ARCH_SUPPORTS_PROPELLER_CLANG=y
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