diff --git a/library/stdarch/Cargo.lock b/library/stdarch/Cargo.lock
index 70f09adf2c85..e198e14ffe17 100644
--- a/library/stdarch/Cargo.lock
+++ b/library/stdarch/Cargo.lock
@@ -282,6 +282,18 @@ dependencies = [
  "wasi",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "899def5c37c4fd7b2664648c28120ecec138e4d395b459e5ca34f9cce2dd77fd"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+ "wasip2",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.12.3"
@@ -348,6 +360,7 @@ dependencies = [
  "log",
  "pretty_env_logger",
  "quick-xml 0.37.5",
+ "rand 0.9.2",
  "rayon",
  "regex",
  "serde",
@@ -473,7 +486,7 @@ checksum = "588f6378e4dd99458b60ec275b4477add41ce4fa9f64dcba6f15adccb19b50d6"
 dependencies = [
  "env_logger 0.8.4",
  "log",
- "rand",
+ "rand 0.8.5",
 ]
 
 [[package]]
@@ -485,6 +498,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "r-efi"
+version = "5.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -492,8 +511,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
 dependencies = [
  "libc",
- "rand_chacha",
- "rand_core",
+ "rand_chacha 0.3.1",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand"
+version = "0.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
+dependencies = [
+ "rand_chacha 0.9.0",
+ "rand_core 0.9.3",
 ]
 
 [[package]]
@@ -503,7 +532,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
 dependencies = [
  "ppv-lite86",
- "rand_core",
+ "rand_core 0.6.4",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.9.3",
 ]
 
 [[package]]
@@ -512,7 +551,16 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.16",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
+dependencies = [
+ "getrandom 0.3.4",
 ]
 
 [[package]]
@@ -703,7 +751,7 @@ dependencies = [
 name = "stdarch-gen-loongarch"
 version = "0.1.0"
 dependencies = [
- "rand",
+ "rand 0.8.5",
 ]
 
 [[package]]
@@ -736,7 +784,7 @@ version = "0.0.0"
 dependencies = [
  "core_arch",
  "quickcheck",
- "rand",
+ "rand 0.8.5",
 ]
 
 [[package]]
@@ -819,6 +867,15 @@ version = "0.11.1+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccf3ec651a847eb01de73ccad15eb7d99f80485de043efb2f370cd654f4ea44b"
 
+[[package]]
+name = "wasip2"
+version = "1.0.1+wasi-0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0562428422c63773dad2c345a1882263bbf4d65cf3f42e90921f787ef5ad58e7"
+dependencies = [
+ "wit-bindgen",
+]
+
 [[package]]
 name = "wasmparser"
 version = "0.235.0"
@@ -1003,6 +1060,12 @@ version = "0.53.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
 
+[[package]]
+name = "wit-bindgen"
+version = "0.46.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
+
 [[package]]
 name = "xml-rs"
 version = "0.8.27"
diff --git a/library/stdarch/ci/run.sh b/library/stdarch/ci/run.sh
index a74769c56dba..bd0e06687fa6 100755
--- a/library/stdarch/ci/run.sh
+++ b/library/stdarch/ci/run.sh
@@ -94,6 +94,7 @@ case ${TARGET} in
         TEST_CXX_COMPILER="clang++"
         TEST_RUNNER="${CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUNNER}"
         TEST_SKIP_INTRINSICS=crates/intrinsic-test/missing_x86.txt
+        TEST_SAMPLE_INTRINSICS_PERCENTAGE=5
         export STDARCH_DISABLE_ASSERT_INSTR=1
         PATH="$PATH":"$(pwd)"/c_programs
         export PATH
diff --git a/library/stdarch/crates/intrinsic-test/Cargo.toml b/library/stdarch/crates/intrinsic-test/Cargo.toml
index 2c0f53897e79..9fb70f32f81b 100644
--- a/library/stdarch/crates/intrinsic-test/Cargo.toml
+++ b/library/stdarch/crates/intrinsic-test/Cargo.toml
@@ -22,3 +22,4 @@ itertools = "0.14.0"
 quick-xml = { version = "0.37.5", features = ["serialize", "overlapped-lists"] }
 serde-xml-rs = "0.8.0"
 regex = "1.11.1"
+rand = "0.9.2"
diff --git a/library/stdarch/crates/intrinsic-test/missing_x86.txt b/library/stdarch/crates/intrinsic-test/missing_x86.txt
index 824d36f60528..e546799740c7 100644
--- a/library/stdarch/crates/intrinsic-test/missing_x86.txt
+++ b/library/stdarch/crates/intrinsic-test/missing_x86.txt
@@ -871,4 +871,34 @@ _m_pxor
 _m_to_int
 _m_to_int64
 _mm512_mask_floor_pd
-_mm512_mask_floor_ps
\ No newline at end of file
+_mm512_mask_floor_ps
+
+# SDE ERROR: Cannot execute XGETBV with ECX != 0
+_xgetbv
+
+# Miscellaneous issues that can be fixed first
+_kshiftli_mask16
+_kshiftli_mask32
+_kshiftli_mask64
+_kshiftli_mask8
+_kshiftri_mask16
+_kshiftri_mask32
+_kshiftri_mask64
+_kshiftri_mask8
+_mm256_castsi128_si256
+_mm256_extract_epi16
+_mm256_extract_epi8
+_mm512_castsi128_si512
+_mm512_castsi256_si512
+_mm512_conj_pch
+_mm512_mask_reduce_max_pd
+_mm512_mask_reduce_max_ps
+_mm512_mask_reduce_min_pd
+_mm512_mask_reduce_min_ps
+_mm_comineq_sh
+_mm_extract_epi16
+_mm_extract_epi8
+_mm_mask_cvtepi16_epi8
+_mm_mask_cvtpd_epi32
+_mm_mask_cvtpd_ps
+_mm_ucomineq_sh
\ No newline at end of file
diff --git a/library/stdarch/crates/intrinsic-test/src/common/cli.rs b/library/stdarch/crates/intrinsic-test/src/common/cli.rs
index beae6a4b044d..461ab542ea89 100644
--- a/library/stdarch/crates/intrinsic-test/src/common/cli.rs
+++ b/library/stdarch/crates/intrinsic-test/src/common/cli.rs
@@ -54,6 +54,9 @@ pub struct Cli {
     /// Set the sysroot for the C++ compiler
     #[arg(long)]
     pub cxx_toolchain_dir: Option<String>,
+
+    #[arg(long, default_value_t = 100u8)]
+    pub sample_percentage: u8,
 }
 
 pub struct ProcessedCli {
@@ -65,6 +68,7 @@ pub struct ProcessedCli {
     pub linker: Option<String>,
     pub cxx_toolchain_dir: Option<String>,
     pub skip: Vec<String>,
+    pub sample_percentage: u8,
 }
 
 impl ProcessedCli {
@@ -74,6 +78,7 @@ impl ProcessedCli {
         let target = cli_options.target;
         let linker = cli_options.linker;
         let cxx_toolchain_dir = cli_options.cxx_toolchain_dir;
+        let sample_percentage = cli_options.sample_percentage;
 
         let skip = if let Some(filename) = cli_options.skip {
             let data = std::fs::read_to_string(&filename).expect("Failed to open file");
@@ -108,6 +113,7 @@ impl ProcessedCli {
             cxx_toolchain_dir,
             skip,
             filename,
+            sample_percentage,
         }
     }
 }
diff --git a/library/stdarch/crates/intrinsic-test/src/common/compare.rs b/library/stdarch/crates/intrinsic-test/src/common/compare.rs
index 1ad00839ef02..89e5f965bc8e 100644
--- a/library/stdarch/crates/intrinsic-test/src/common/compare.rs
+++ b/library/stdarch/crates/intrinsic-test/src/common/compare.rs
@@ -14,7 +14,6 @@ pub fn compare_outputs(intrinsic_name_list: &Vec<String>, runner: &str, target:
     let intrinsics = intrinsic_name_list
         .par_iter()
         .filter_map(|intrinsic_name| {
-
             let c = runner_command(runner)
                 .arg("intrinsic-test-programs")
                 .arg(intrinsic_name)
diff --git a/library/stdarch/crates/intrinsic-test/src/x86/mod.rs b/library/stdarch/crates/intrinsic-test/src/x86/mod.rs
index 1eac6fb5f930..ca5748e5fb0c 100644
--- a/library/stdarch/crates/intrinsic-test/src/x86/mod.rs
+++ b/library/stdarch/crates/intrinsic-test/src/x86/mod.rs
@@ -12,6 +12,8 @@ use crate::common::intrinsic::Intrinsic;
 use crate::common::intrinsic_helpers::TypeKind;
 use intrinsic::X86IntrinsicType;
 use itertools::Itertools;
+use rand::rng;
+use rand::seq::IndexedRandom;
 use xml_parser::get_xml_intrinsics;
 
 pub struct X86ArchitectureTest {
@@ -47,7 +49,10 @@ impl SupportedArchitectureTest for X86ArchitectureTest {
         let intrinsics =
             get_xml_intrinsics(&cli_options.filename).expect("Error parsing input file");
 
-        let mut intrinsics = intrinsics
+        let mut rng = rng();
+        let sample_percentage: usize = cli_options.sample_percentage as usize;
+
+        let intrinsics = intrinsics
             .into_iter()
             // Not sure how we would compare intrinsic that returns void.
             .filter(|i| i.results.kind() != TypeKind::Void)
@@ -62,6 +67,12 @@ impl SupportedArchitectureTest for X86ArchitectureTest {
             .unique_by(|i| i.name.clone())
             .collect::<Vec<_>>();
 
+        let sample_size = (intrinsics.len() * sample_percentage) / 100;
+        let mut intrinsics = intrinsics
+            .choose_multiple(&mut rng, sample_size)
+            .cloned()
+            .collect::<Vec<_>>();
+
         intrinsics.sort_by(|a, b| a.name.cmp(&b.name));
         Self {
             intrinsics: intrinsics,