Merge pull request #22154 from alexrp/disable-intrinsics

compiler: Implement `@disableIntrinsics()` builtin function.

1 files changed, 22 insertions, 0 deletions

diff --git a/src/Sema.zig b/src/Sema.zig
index 80eb798593..9e729a17ea 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -1409,6 +1409,11 @@ fn analyzeBodyInner(
                         i += 1;
                         continue;
                     },
+                    .disable_intrinsics => {
+                        try sema.zirDisableIntrinsics();
+                        i += 1;
+                        continue;
+                    },
                     .restore_err_ret_index => {
                         try sema.zirRestoreErrRetIndex(block, extended);
                         i += 1;
@@ -6642,6 +6647,23 @@ fn zirDisableInstrumentation(sema: *Sema) CompileError!void {
     sema.allow_memoize = false;
 }
 
+fn zirDisableIntrinsics(sema: *Sema) CompileError!void {
+    const pt = sema.pt;
+    const zcu = pt.zcu;
+    const ip = &zcu.intern_pool;
+    const func = switch (sema.owner.unwrap()) {
+        .func => |func| func,
+        .@"comptime",
+        .nav_val,
+        .nav_ty,
+        .type,
+        .memoized_state,
+        => return, // does nothing outside a function
+    };
+    ip.funcSetDisableIntrinsics(func);
+    sema.allow_memoize = false;
+}
+
 fn zirSetFloatMode(sema: *Sema, block: *Block, extended: Zir.Inst.Extended.InstData) CompileError!void {
     const extra = sema.code.extraData(Zir.Inst.UnNode, extended.operand).data;
     const src = block.builtinCallArgSrc(extra.node, 0);