commit:     c81a596be7fa480e369c0ce7464f92e45e332610
Author:     Z. Liu <zhixu.liu <AT> gmail <DOT> com>
AuthorDate: Sat Feb 22 08:08:57 2025 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Sat Feb 22 17:45:36 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c81a596b

dev-lang/rust: fix experimental targets check

1. target in ALL_LLVM_TARGETS has prefix llvm_targets_, so the check in
  last commit failed always.
2. using associate array for the test of experimental target's existence
3. sed -i 's:LLVM_EXPERIMENTAL_TARGETS:RUST_EXPERIMENTAL_TARGETS:g' to
   fix warning on var name collide with ALL_LLVM_EXPERIMENTAL_TARGETS in
   llvm.org.eclass

Fixes: ff8e2b548c258e60463b1df0224beda29c7aacec
Signed-off-by: Z. Liu <zhixu.liu <AT> gmail.com>
Closes: https://github.com/gentoo/gentoo/pull/40698
Signed-off-by: Sam James <sam <AT> gentoo.org>

 dev-lang/rust/rust-1.71.1-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.74.1-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.75.0-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.76.0-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.77.1-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.78.0-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.79.0-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.80.1-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.81.0-r101.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.82.0-r102.ebuild         | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.83.0-r2.ebuild           | 29 ++++++++++++++-------------
 dev-lang/rust/rust-1.84.1-r1.ebuild           | 28 +++++++++++++-------------
 dev-lang/rust/rust-1.85.0.ebuild              | 21 ++++++++++++-------
 dev-lang/rust/rust-1.86.0_beta20250218.ebuild | 21 ++++++++++++-------
 dev-lang/rust/rust-9999.ebuild                | 21 ++++++++++++-------
 15 files changed, 221 insertions(+), 189 deletions(-)

diff --git a/dev-lang/rust/rust-1.71.1-r101.ebuild 
b/dev-lang/rust/rust-1.71.1-r101.ebuild
index fa6ca5be0bc8..ae1366fb5ce3 100644
--- a/dev-lang/rust/rust-1.71.1-r101.ebuild
+++ b/dev-lang/rust/rust-1.71.1-r101.ebuild
@@ -38,8 +38,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM AVR BPF Hexagon Lanai 
LoongArch Mips MSP43
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.71.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=()
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4 UoI-NCSA"
 SLOT="${PV}"
@@ -50,12 +54,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -246,13 +247,13 @@ src_configure() {
 
        rust_target="$(rust_abi)"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -264,7 +265,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.74.1-r101.ebuild 
b/dev-lang/rust/rust-1.74.1-r101.ebuild
index 060ae389079f..3e8a2fb536d3 100644
--- a/dev-lang/rust/rust-1.74.1-r101.ebuild
+++ b/dev-lang/rust/rust-1.74.1-r101.ebuild
@@ -44,8 +44,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.74.1/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -56,12 +60,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -304,13 +305,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -322,7 +323,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.75.0-r101.ebuild 
b/dev-lang/rust/rust-1.75.0-r101.ebuild
index 8dba35567835..c0b81f631aa2 100644
--- a/dev-lang/rust/rust-1.75.0-r101.ebuild
+++ b/dev-lang/rust/rust-1.75.0-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.75.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -270,13 +271,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -288,7 +289,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.76.0-r101.ebuild 
b/dev-lang/rust/rust-1.76.0-r101.ebuild
index c62acdfc7419..f6114fd34e18 100644
--- a/dev-lang/rust/rust-1.76.0-r101.ebuild
+++ b/dev-lang/rust/rust-1.76.0-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.76.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -269,13 +270,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -287,7 +288,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.77.1-r101.ebuild 
b/dev-lang/rust/rust-1.77.1-r101.ebuild
index 149b3e8105f4..8ecaf535a291 100644
--- a/dev-lang/rust/rust-1.77.1-r101.ebuild
+++ b/dev-lang/rust/rust-1.77.1-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.77.1/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -268,13 +269,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -286,7 +287,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.78.0-r101.ebuild 
b/dev-lang/rust/rust-1.78.0-r101.ebuild
index ad7ef8defa1d..f87df749f847 100644
--- a/dev-lang/rust/rust-1.78.0-r101.ebuild
+++ b/dev-lang/rust/rust-1.78.0-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.78.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -268,13 +269,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -285,7 +286,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.79.0-r101.ebuild 
b/dev-lang/rust/rust-1.79.0-r101.ebuild
index ad7ef8defa1d..96171bb99b28 100644
--- a/dev-lang/rust/rust-1.79.0-r101.ebuild
+++ b/dev-lang/rust/rust-1.79.0-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.79.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -268,13 +269,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -285,7 +286,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.80.1-r101.ebuild 
b/dev-lang/rust/rust-1.80.1-r101.ebuild
index fb4c96456714..e535b914f811 100644
--- a/dev-lang/rust/rust-1.80.1-r101.ebuild
+++ b/dev-lang/rust/rust-1.80.1-r101.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.80.1/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -267,13 +268,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -284,7 +285,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.81.0-r101.ebuild 
b/dev-lang/rust/rust-1.81.0-r101.ebuild
index 8d664876a184..c6fee6b41ad7 100644
--- a/dev-lang/rust/rust-1.81.0-r101.ebuild
+++ b/dev-lang/rust/rust-1.81.0-r101.ebuild
@@ -40,8 +40,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.81.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -52,12 +56,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -271,13 +272,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -288,7 +289,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.82.0-r102.ebuild 
b/dev-lang/rust/rust-1.82.0-r102.ebuild
index a5f36a0d736d..d68d0e8f12d8 100644
--- a/dev-lang/rust/rust-1.82.0-r102.ebuild
+++ b/dev-lang/rust/rust-1.82.0-r102.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.82.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -279,13 +280,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -296,7 +297,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.83.0-r2.ebuild 
b/dev-lang/rust/rust-1.83.0-r2.ebuild
index 5a0afd35a715..08cb004f06d1 100644
--- a/dev-lang/rust/rust-1.83.0-r2.ebuild
+++ b/dev-lang/rust/rust-1.83.0-r2.ebuild
@@ -39,8 +39,12 @@ ALL_LLVM_TARGETS=( AArch64 AMDGPU ARC ARM AVR BPF CSKY 
DirectX Hexagon Lanai
 ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+# 
https://github.com/rust-lang/llvm-project/blob/rustc-1.83.0/llvm/CMakeLists.txt
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -51,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -279,13 +280,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -296,7 +297,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.84.1-r1.ebuild 
b/dev-lang/rust/rust-1.84.1-r1.ebuild
index 5f314dca5314..55697833c34d 100644
--- a/dev-lang/rust/rust-1.84.1-r1.ebuild
+++ b/dev-lang/rust/rust-1.84.1-r1.ebuild
@@ -40,8 +40,11 @@ ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
 # 
https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
-_ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
-ALL_LLVM_EXPERIMENTAL_TARGETS=( )
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV}"
@@ -52,12 +55,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
-       for _xx in "${_ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if [[ "${_xx}" == "${_x}" ]] ; then
-                       ALL_LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
-                       break
-               fi
-       done
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -279,13 +279,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        cat <<- _EOF_ > "${S}"/config.toml
@@ -298,7 +298,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.85.0.ebuild b/dev-lang/rust/rust-1.85.0.ebuild
index ed5563128cfb..ce74a475077e 100644
--- a/dev-lang/rust/rust-1.85.0.ebuild
+++ b/dev-lang/rust/rust-1.85.0.ebuild
@@ -61,7 +61,11 @@ ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
 # 
https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
-ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV%%_*}" # Beta releases get to share the same SLOT as the eventual 
stable
@@ -77,6 +81,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -346,13 +353,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        local build_channel
@@ -378,7 +385,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-1.86.0_beta20250218.ebuild 
b/dev-lang/rust/rust-1.86.0_beta20250218.ebuild
index 1a745a6f2315..30a378f5c311 100644
--- a/dev-lang/rust/rust-1.86.0_beta20250218.ebuild
+++ b/dev-lang/rust/rust-1.86.0_beta20250218.ebuild
@@ -62,7 +62,11 @@ ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
 # 
https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
-ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV%%_*}" # Beta releases get to share the same SLOT as the eventual 
stable
@@ -78,6 +82,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -348,13 +355,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        local build_channel
@@ -380,7 +387,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632

diff --git a/dev-lang/rust/rust-9999.ebuild b/dev-lang/rust/rust-9999.ebuild
index 9a9c089e80e3..d8ef8c5ff649 100644
--- a/dev-lang/rust/rust-9999.ebuild
+++ b/dev-lang/rust/rust-9999.ebuild
@@ -61,7 +61,11 @@ ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
 LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/(-)?}
 
 # 
https://github.com/rust-lang/llvm-project/blob/rustc-1.84.0/llvm/CMakeLists.txt
-ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+_ALL_RUST_EXPERIMENTAL_TARGETS=( ARC CSKY DirectX M68k SPIRV Xtensa )
+declare -A ALL_RUST_EXPERIMENTAL_TARGETS
+for _x in "${_ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+       ALL_RUST_EXPERIMENTAL_TARGETS["llvm_targets_${_x}"]=0
+done
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD BSD-1 BSD-2 BSD-4"
 SLOT="${PV%%_*}" # Beta releases get to share the same SLOT as the eventual 
stable
@@ -77,6 +81,9 @@ LLVM_DEPEND=()
 # splitting usedeps needed to avoid CI/pkgcheck's UncheckableDep limitation
 for _x in "${ALL_LLVM_TARGETS[@]}"; do
        LLVM_DEPEND+=( "        ${_x}? ( $(llvm_gen_dep 
"llvm-core/llvm:\${LLVM_SLOT}[${_x}]") )" )
+       if [[ -v ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"] ]] ; then
+               ALL_RUST_EXPERIMENTAL_TARGETS["${_x}"]=1
+       fi
 done
 LLVM_DEPEND+=( "       wasm? ( $(llvm_gen_dep 'llvm-core/lld:${LLVM_SLOT}') )" 
)
 LLVM_DEPEND+=( "       $(llvm_gen_dep 'llvm-core/llvm:${LLVM_SLOT}')" )
@@ -346,13 +353,13 @@ src_configure() {
        rust_build="$(rust_abi "${CBUILD}")"
        rust_host="$(rust_abi "${CHOST}")"
 
-       LLVM_EXPERIMENTAL_TARGETS=()
-       for _x in "${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}"; do
-               if use llvm_targets_${_x} ; then
-                       LLVM_EXPERIMENTAL_TARGETS+=( ${_x} )
+       RUST_EXPERIMENTAL_TARGETS=()
+       for _x in "${!ALL_RUST_EXPERIMENTAL_TARGETS[@]}"; do
+               if [[ ${ALL_RUST_EXPERIMENTAL_TARGETS[${_x}]} == 1 ]] && use 
${_x} ; then
+                       RUST_EXPERIMENTAL_TARGETS+=( ${_x#llvm_targets_} )
                fi
        done
-       LLVM_EXPERIMENTAL_TARGETS=${LLVM_EXPERIMENTAL_TARGETS[@]}
+       RUST_EXPERIMENTAL_TARGETS=${RUST_EXPERIMENTAL_TARGETS[@]}
 
        local cm_btype="$(usex debug DEBUG RELEASE)"
        local build_channel
@@ -378,7 +385,7 @@ src_configure() {
                assertions = $(toml_usex debug)
                ninja = true
                targets = "${LLVM_TARGETS// /;}"
-               experimental-targets = "${LLVM_EXPERIMENTAL_TARGETS// /;}"
+               experimental-targets = "${RUST_EXPERIMENTAL_TARGETS// /;}"
                link-shared = $(toml_usex system-llvm)
                $(if is_libcxx_linked; then
                        # https://bugs.gentoo.org/732632


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