diff --git a/src/librustdoc/clean/cfg.rs b/src/librustdoc/clean/cfg.rs
index ab5aec12fe7c..a5fa9980ce07 100644
--- a/src/librustdoc/clean/cfg.rs
+++ b/src/librustdoc/clean/cfg.rs
@@ -516,7 +516,6 @@ impl<'a> fmt::Display for Display<'a> {
                     (sym::target_arch, Some(arch)) => match arch.as_str() {
                         "aarch64" => "AArch64",
                         "arm" => "ARM",
-                        "asmjs" => "JavaScript",
                         "loongarch64" => "LoongArch LA64",
                         "m68k" => "M68k",
                         "csky" => "CSKY",
diff --git a/src/tools/build-manifest/src/main.rs b/src/tools/build-manifest/src/main.rs
index 2c795ebb2148..88f940c7678a 100644
--- a/src/tools/build-manifest/src/main.rs
+++ b/src/tools/build-manifest/src/main.rs
@@ -82,7 +82,6 @@ static TARGETS: &[&str] = &[
     "armv7r-none-eabi",
     "armv7r-none-eabihf",
     "armv7s-apple-ios",
-    "asmjs-unknown-emscripten",
     "bpfeb-unknown-none",
     "bpfel-unknown-none",
     "i386-apple-ios",
diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs
index 0e1bf0c6c2dc..11e51ef6e4ba 100644
--- a/src/tools/compiletest/src/common.rs
+++ b/src/tools/compiletest/src/common.rs
@@ -396,9 +396,6 @@ impl Config {
 
     pub fn matches_arch(&self, arch: &str) -> bool {
         self.target_cfg().arch == arch ||
-        // Shorthand for convenience. The arch for
-        // asmjs-unknown-emscripten is actually wasm32.
-        (arch == "asmjs" && self.target.starts_with("asmjs")) ||
         // Matching all the thumb variants as one can be convenient.
         // (thumbv6m, thumbv7em, thumbv7m, etc.)
         (arch == "thumb" && self.target.starts_with("thumb"))
diff --git a/src/tools/compiletest/src/header/cfg.rs b/src/tools/compiletest/src/header/cfg.rs
index 77c2866b366a..3a1b9dff3a6b 100644
--- a/src/tools/compiletest/src/header/cfg.rs
+++ b/src/tools/compiletest/src/header/cfg.rs
@@ -146,19 +146,13 @@ pub(super) fn parse_cfg_name_directive<'a>(
     }
 
     // `wasm32-bare` is an alias to refer to just wasm32-unknown-unknown
-    // (in contrast to `wasm32` which also matches non-bare targets like
-    // asmjs-unknown-emscripten).
+    // (in contrast to `wasm32` which also matches non-bare targets)
     condition! {
         name: "wasm32-bare",
         condition: config.target == "wasm32-unknown-unknown",
         message: "when the target is WASM"
     }
 
-    condition! {
-        name: "asmjs",
-        condition: config.target.starts_with("asmjs"),
-        message: "when the architecture is asm.js",
-    }
     condition! {
         name: "thumb",
         condition: config.target.starts_with("thumb"),
diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs
index 2fd80b52ceee..ab600f179137 100644
--- a/src/tools/compiletest/src/header/tests.rs
+++ b/src/tools/compiletest/src/header/tests.rs
@@ -396,8 +396,6 @@ fn ignore_arch() {
         ("x86_64-unknown-linux-gnu", "x86_64"),
         ("i686-unknown-linux-gnu", "x86"),
         ("nvptx64-nvidia-cuda", "nvptx64"),
-        ("asmjs-unknown-emscripten", "wasm32"),
-        ("asmjs-unknown-emscripten", "asmjs"),
         ("thumbv7m-none-eabi", "thumb"),
     ];
     for (target, arch) in archs {
@@ -490,9 +488,6 @@ fn wasm_special() {
         ("wasm32-unknown-unknown", "wasm32", true),
         ("wasm32-unknown-unknown", "wasm32-bare", true),
         ("wasm32-unknown-unknown", "wasm64", false),
-        ("asmjs-unknown-emscripten", "emscripten", true),
-        ("asmjs-unknown-emscripten", "wasm32", true),
-        ("asmjs-unknown-emscripten", "wasm32-bare", false),
         ("wasm32-unknown-emscripten", "emscripten", true),
         ("wasm32-unknown-emscripten", "wasm32", true),
         ("wasm32-unknown-emscripten", "wasm32-bare", false),