From 9d3c09ed53f1cdc5ac38e79bf6a66a47a2b33277 Mon Sep 17 00:00:00 2001
From: Madhav Madhusoodanan <f20200049@pilani.bits-pilani.ac.in>
Date: Mon, 14 Apr 2025 06:10:27 +0530
Subject: [PATCH] added target field within `IntrinsicType` to perform target
 level checking cleanly

---
 .../crates/intrinsic-test/src/arm/argument.rs    |  4 ++--
 .../crates/intrinsic-test/src/arm/json_parser.rs | 16 +++++++++++-----
 .../stdarch/crates/intrinsic-test/src/arm/mod.rs |  4 ++--
 .../crates/intrinsic-test/src/arm/types.rs       | 14 +++++++++++---
 4 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/library/stdarch/crates/intrinsic-test/src/arm/argument.rs b/library/stdarch/crates/intrinsic-test/src/arm/argument.rs
index 5edfca0b3688..43976b81490a 100644
--- a/library/stdarch/crates/intrinsic-test/src/arm/argument.rs
+++ b/library/stdarch/crates/intrinsic-test/src/arm/argument.rs
@@ -79,10 +79,10 @@ impl Argument {
     }
 
     // ARM-specific
-    pub fn from_c(pos: usize, arg: &str, arg_prep: Option<ArgPrep>) -> Argument {
+    pub fn from_c(pos: usize, arg: &str, arg_prep: Option<ArgPrep>, target: &String) -> Argument {
         let (ty, var_name) = Self::type_and_name_from_c(arg);
 
-        let ty = IntrinsicType::from_c(ty)
+        let ty = IntrinsicType::from_c(ty, target)
             .unwrap_or_else(|_| panic!("Failed to parse argument '{arg}'"));
 
         let constraint = arg_prep.and_then(|a| a.try_into().ok());
diff --git a/library/stdarch/crates/intrinsic-test/src/arm/json_parser.rs b/library/stdarch/crates/intrinsic-test/src/arm/json_parser.rs
index 630af311d196..b914c4fffab6 100644
--- a/library/stdarch/crates/intrinsic-test/src/arm/json_parser.rs
+++ b/library/stdarch/crates/intrinsic-test/src/arm/json_parser.rs
@@ -41,7 +41,10 @@ struct JsonIntrinsic {
     architectures: Vec<String>,
 }
 
-pub fn get_neon_intrinsics(filename: &Path) -> Result<Vec<Intrinsic>, Box<dyn std::error::Error>> {
+pub fn get_neon_intrinsics(
+    filename: &Path,
+    target: &String,
+) -> Result<Vec<Intrinsic>, Box<dyn std::error::Error>> {
     let file = std::fs::File::open(filename)?;
     let reader = std::io::BufReader::new(file);
     let json: Vec<JsonIntrinsic> = serde_json::from_reader(reader).expect("Couldn't parse JSON");
@@ -50,7 +53,7 @@ pub fn get_neon_intrinsics(filename: &Path) -> Result<Vec<Intrinsic>, Box<dyn st
         .into_iter()
         .filter_map(|intr| {
             if intr.simd_isa == "Neon" {
-                Some(json_to_intrinsic(intr).expect("Couldn't parse JSON"))
+                Some(json_to_intrinsic(intr, target).expect("Couldn't parse JSON"))
             } else {
                 None
             }
@@ -59,10 +62,13 @@ pub fn get_neon_intrinsics(filename: &Path) -> Result<Vec<Intrinsic>, Box<dyn st
     Ok(parsed)
 }
 
-fn json_to_intrinsic(mut intr: JsonIntrinsic) -> Result<Intrinsic, Box<dyn std::error::Error>> {
+fn json_to_intrinsic(
+    mut intr: JsonIntrinsic,
+    target: &String,
+) -> Result<Intrinsic, Box<dyn std::error::Error>> {
     let name = intr.name.replace(['[', ']'], "");
 
-    let results = IntrinsicType::from_c(&intr.return_type.value)?;
+    let results = IntrinsicType::from_c(&intr.return_type.value, target)?;
 
     let mut args_prep = intr.args_prep.as_mut();
     let args = intr
@@ -72,7 +78,7 @@ fn json_to_intrinsic(mut intr: JsonIntrinsic) -> Result<Intrinsic, Box<dyn std::
         .map(|(i, arg)| {
             let arg_name = Argument::type_and_name_from_c(&arg).1;
             let arg_prep = args_prep.as_mut().and_then(|a| a.remove(arg_name));
-            let mut arg = Argument::from_c(i, &arg, arg_prep);
+            let mut arg = Argument::from_c(i, &arg, arg_prep, target);
             // The JSON doesn't list immediates as const
             if let IntrinsicType::Type {
                 ref mut constant, ..
diff --git a/library/stdarch/crates/intrinsic-test/src/arm/mod.rs b/library/stdarch/crates/intrinsic-test/src/arm/mod.rs
index 770fbb247936..8d94250c53b5 100644
--- a/library/stdarch/crates/intrinsic-test/src/arm/mod.rs
+++ b/library/stdarch/crates/intrinsic-test/src/arm/mod.rs
@@ -22,8 +22,8 @@ pub struct ArmArchitectureTest {
 impl SupportedArchitectureTest for ArmArchitectureTest {
     fn create(cli_options: ProcessedCli) -> Self {
         let a32 = cli_options.target.contains("v7");
-        let mut intrinsics =
-            get_neon_intrinsics(&cli_options.filename).expect("Error parsing input file");
+        let mut intrinsics = get_neon_intrinsics(&cli_options.filename, &cli_options.target)
+            .expect("Error parsing input file");
 
         intrinsics.sort_by(|a, b| a.name.cmp(&b.name));
 
diff --git a/library/stdarch/crates/intrinsic-test/src/arm/types.rs b/library/stdarch/crates/intrinsic-test/src/arm/types.rs
index a27651a3c055..a579e9699d62 100644
--- a/library/stdarch/crates/intrinsic-test/src/arm/types.rs
+++ b/library/stdarch/crates/intrinsic-test/src/arm/types.rs
@@ -97,6 +97,8 @@ pub enum IntrinsicType {
         /// rows encoded in the type (e.g. uint8x8_t).
         /// A value of `None` can be assumed to be 1 though.
         vec_len: Option<u32>,
+
+        target: String,
     },
 }
 
@@ -393,6 +395,7 @@ impl IntrinsicType {
                 bit_len: Some(bl),
                 simd_len,
                 vec_len,
+                target,
                 ..
             } => {
                 let quad = if simd_len.unwrap_or(1) * bl > 64 {
@@ -400,6 +403,8 @@ impl IntrinsicType {
                 } else {
                     ""
                 };
+
+                let choose_workaround = language == Language::C && target.contains("v7");
                 format!(
                     "vld{len}{quad}_{type}{size}",
                     type = match k {
@@ -407,7 +412,8 @@ impl IntrinsicType {
                         TypeKind::Int => "s",
                         TypeKind::Float => "f",
                         // The ACLE doesn't support 64-bit polynomial loads on Armv7
-                        TypeKind::Poly => if language == Language::C && *bl == 64 {"s"} else {"p"},
+                        // if armv7 and bl == 64, use "s", else "p"
+                        TypeKind::Poly => if choose_workaround && *bl == 64 {"s"} else {"p"},
                         x => todo!("get_load_function TypeKind: {:#?}", x),
                     },
                     size = bl,
@@ -462,7 +468,7 @@ impl IntrinsicType {
     }
 
     /// ARM-specific
-    pub fn from_c(s: &str) -> Result<IntrinsicType, String> {
+    pub fn from_c(s: &str, target: &String) -> Result<IntrinsicType, String> {
         const CONST_STR: &str = "const";
         if let Some(s) = s.strip_suffix('*') {
             let (s, constant) = match s.trim().strip_suffix(CONST_STR) {
@@ -472,7 +478,7 @@ impl IntrinsicType {
             let s = s.trim_end();
             Ok(IntrinsicType::Ptr {
                 constant,
-                child: Box::new(IntrinsicType::from_c(s)?),
+                child: Box::new(IntrinsicType::from_c(s, target)?),
             })
         } else {
             // [const ]TYPE[{bitlen}[x{simdlen}[x{vec_len}]]][_t]
@@ -507,6 +513,7 @@ impl IntrinsicType {
                     bit_len: Some(bit_len),
                     simd_len,
                     vec_len,
+                    target: target.to_string(),
                 })
             } else {
                 let kind = start.parse::<TypeKind>()?;
@@ -520,6 +527,7 @@ impl IntrinsicType {
                     bit_len,
                     simd_len: None,
                     vec_len: None,
+                    target: target.to_string(),
                 })
             }
         }